ФИЛЬТР ДЛЯ ОЧИСТКИ ОТРАБОТАВШИХ ГАЗОВ И СПОСОБ ОЧИСТКИ ОТРАБОТАВШИХ ГАЗОВ

Изобретение относится к двигателестроению и может быть использовано в устройствах для очистки отработавших газов (ОГ) двигателя. Фильтр для очистки ОГ, образующихся при работе двс, выполнен из по меньшей мере одного полосовидного фильтрующего элемента, имеющего по меньшей мере один фильтрующий участок из по меньшей мере частично проточного для текучей среды материала и, необязательно, фольги, при этом фильтрующий элемент имеет по меньшей мере один контактный участок с каталитически активным покрытием для химического превращения газообразных компонентов отработавших газов и фильтрующий участок для отфильтровывания из отработавших газов присутствующих в них твердых частиц, причем контактный участок расположен перед, если смотреть в главном направлении потока, фильтрующим участком. Контактный участок выполнен с входной торцевой стороны фильтра, занимает в продольном направлении менее 20%, предпочтительно менее 10%, от осевой длины фильтра. Приведен способ очистки ОГ. Изобретение позволяет ...

КАТАЛИЗАТОР С УЛУЧШЕННЫМИ ПАРАМЕТРАМИ НАЧАЛА РАБОТЫ

Изобретение относится к металлическим сотовым элементам для очистки отработавших газов двигателей внутреннего сгорания. Сущность изобретения: катализатор для очистки отработавших газов двигателей внутреннего сгорания, содержащий сотовый элемент из гладких и гофрированных металлических листов с входной торцевой поверхностью и выходной торцевой поверхностью для отработавших газов, причем металлические листы снабжены отверстиями для уменьшения их теплоемкости, а на металлические листы нанесена катализаторная масса, при этом отверстия металлических листов заполнены катализаторной массой, а площадь отверстий всех отверстий в совокупности составляет от 5 до 80% площади металлических листов. Также использование катализатора для очистки отработавших газов двигателя внутреннего сгорания. Техническим результатом изобретения является уменьшение теплоемкости и теплопроводности катализатора. 2 н. и 10 з.п. ф-лы, 3 табл., 7 ил.

СПОСОБ ПОЛУЧЕНИЯ КАТАЛИЗАТОРА ИЛИ ПРЕДШЕСТВЕННИКА КАТАЛИЗАТОРА, КАТАЛИЗАТОР И СПОСОБ ЧАСТИЧНОГО ОКИСЛЕНИЯ УГЛЕВОДОРОДНОГО СЫРЬЯ С ЕГО ИСПОЛЬЗОВАНИЕМ

Описывается способ получения керамической пены, несущей один или более каталитически активных компонентов или их предшественников, причем компонент является активным в форме, отличной от неорганического оксида, включающий пропитку пены пропитывающей фазой, содержащей каталитически активный компонент или его предшественник, и высушивание, где высушивание осуществляют без существенного предварительного отвода пропитывающей фазы из керамической пены и где каталитически активный компонент или его предшественник присутствует на протяжении способа в одной или более формах, отличных от его неорганического оксида. Способ отличается тем, что пропитывающая фаза имеет вязкость более чем 1 сП. Полученные таким способом керамические пены находят применение в процессах каталитических превращений, в частности при каталитическом частичном окислении углеводородного сырья. Описывается также способ частичного окисления углеводородного сырья с его использованием. 3 с. и 7 з. п. ф-лы.

ПАЯНЫЙ МЕТАЛЛИЧЕСКИЙ СОТОВЫЙ ЭЛЕМЕНТ С ДИСТАНЦИОННЫМИ РАСПОРКАМИ В МЕСТАХ ПАЙКИ И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

Изобретения могут быть использованы при изготовлении элементов, применяемых в качестве каталитических нейтрализаторов отработавших газов транспортных средств. Металлические листы частично имеют структуру, образующую каналы для прохождения текучей среды. На одном из соседних листов выполняют обращенный в сторону соседнего листа выдавленный выступ в качестве дистанционной распорки. Припой наносят в зоне выступа в образованный паяльный зазор. Способ изготовления элементов позволяет снизить потерю силы предварительного напряжения металлических листов в процессе пайки. Изготовленные сотовые элементы отличаются максимально однородным выполнением паяных соединений. 2 с. и 8 з.п. ф-лы, 7 ил.

СПОСОБ ПОЛУЧЕНИЯ ЭПСИЛОН-КАПРОЛАКТАМА

Изобретение относится к технологии получения капролактама циклизацией производных аминокапроновой кислоты. Способ осуществляют циклизующим гидролизом соединения, выбранного из группы, содержащей сложные эфиры, или амиды 6-аминокапроновой кислоты, или их смеси. Процесс проводят в присутствии воды в паровой фазе при температуре 200-450°С и в присутствии твердого катализатора, состоящего из оксида алюминия, который содержит, по меньшей мере, одну макропористость, характеризующуюся объемом пор, соответствующим порам с диаметром больше 500 Å, больше или равным 5 мл/100 г. Предпочтительно частицы катализатора имеют удельную площадь поверхности больше 10 м2/г и общий объем пор больше или равный 10 мл/100 г, при этом объем пор, соответствующий порам с диаметром больше 500 Å, больше или равен 10 мл/100 г. Технический результат - улучшение показателей процесса за счет усовершенствования твердого катализатора. 4 з.п. ф-лы.

КАТАЛИЗАТОР ДЛЯ ПЕРЕРАБОТКИ РАСТИТЕЛЬНЫХ МАСЕЛ И ДИСТИЛЛИРОВАННЫХ ЖИРНЫХ КИСЛОТ И СПОСОБ ЕГО ПРИГОТОВЛЕНИЯ

Изобретение относится к области катализаторов, в частности, предназначенных для гидрирования растительных масел и жиров, и может использоваться в пищевой, парфюмерной, нефтехимической и нефтеперерабатывающей промышленности. Описан способ, предусматривающий приготовление гранулированных катализаторов, предназначенных для жидкофазного гидрирования водородом растительных масел и дистиллированных жирных кислот и представляющих собой металлический палладий, нанесенный в количестве 0,5-2,0 мас.% на углеродный носитель фр. 0,5-6,0 мм с удельной поверхностью 100-450 м2/г и объемом пор 0,2-0,6 см3/г. Процесс гидрирования проводят на стационарном слое катализатора при температуре 140-210°С, давлении водорода от 2 до 12 атм и расходе по сырью от 100 до 1500 г/(кгкт·ч). Технический результат - высокая скорость гидрирования сырья при производстве технических марок саломасов и высокая стабильность. 2 н. и 2 з.п. ф-лы, 1 ил., 3 табл.

ЭКСТРУДИРОВАННЫЙ СОТОВЫЙ ЭЛЕМЕНТ, В ЧАСТНОСТИ КОРПУС-НОСИТЕЛЬ КАТАЛИЗАТОРА, С УСИЛЕННОЙ СТРУКТУРОЙ СТЕНОК

Изобретение относится к сотовому элементу, который используют, например, для каталитического превращения отработавших газов двигателя внутреннего сгорания. Экструдированный сотовый элемент, в частности корпус-носитель катализатора, имеет множество сквозных каналов для прохождения текучей среды. По меньшей мере часть каналов ограничена и/или отделена друг от друга стенками первой толщины и по меньшей мере часть каналов ограничена и/или отделена друг от друга стенками второй толщины, которая больше первой толщины. При этом сотовый элемент имеет придающую ему жесткость структуру стенок, образованную стенками второй толщины. Придающая жесткость структура стенок имеет несколько приблизительно прямых перегородок второй толщины, которые, отходя в соответствующем месте поперечно краю сотового элемента, проходят от соответствующей наружной стороны внутрь сотового элемента или полностью пересекают сотовый элемент. Ни один из каналов не ограничен только стенками, являющимися продолжениями перегородок ...

НОСИТЕЛЬ КАТАЛИЗАТОРА, СПОСОБ ЕГО ПОЛУЧЕНИЯ, СУСПЕНЗИЯ ДЛЯ ИСПОЛЬЗОВАНИЯ ПРИ ЕГО ПОЛУЧЕНИИ, КАТАЛИЗАТОР И ЕГО ПРИМЕНЕНИЕ ДЛЯ ПОЛУЧЕНИЯ ПЕРОКСИДА ВОДОРОДА

Изобретение относится к носителю катализатора, включающему волокнистую бумагу, пропитанную суспензией, содержащей золь диоксида кремния, микроволокна и наполнитель, в котором указанные микроволокна имеют эквивалентный средний размер частиц, измеренный способом седиграфа, от примерно 200 до примерно 30000 нм и указанный наполнитель имеет средний эквивалентный размер частиц, измеренный способом седиграфа, от примерно 300 до примерно 10000 нм. Изобретение, кроме того, относится к способу его получения, пригодной для этого суспензии, к катализатору, содержащему такой носитель катализатора, и применению катализатора для получения пероксида водорода. Технический эффект - повышение механической прочности носителя, получение катализатора, обладающего высокой активностью и долгосрочной стабильностью. 6 с. и 11 з.п. ф-лы, 2 табл.

СПОСОБ ПОЛУЧЕНИЯ НАНОКАТАЛИТИЧЕСКОГО МАТЕРИАЛА

Изобретение относится к технологическим процессам, а именно к способам осуществления химических процессов, в частности к области общего и специального катализа, также к созданию новых материалов с особыми свойствами для осуществления этих процессов. Изобретение может быть использовано для изготовления термохимических каталитических реакторов паровой конверсии топлива и химической регенерации тепла, химических источников тока, топливных элементов. В способе изготовления нанокаталитического материала получение каталитически активного слоя на металлическом носителе производят путем нанесения порошковой композиции с помощью высокоэнергетических процессов гетерофазного переноса с использованием двух или более автономно работающих устройств на металлический носитель. Носитель имеет сквозные отверстия, которые выполнены методом просечки или иным способом перфорирования. Площадь сквозных отверстий металлического носителя составляет от 0,1 до 0,7 см, толщина каталитически активного слоя - от 100 ...

НОВЫЕ ГЕОМЕТРИЧЕСКИЕ ФОРМЫ МНОГОКАНАЛЬНЫХ ТРУБЧАТЫХ ЭЛЕМЕНТОВ, ПРЕДНАЗНАЧЕННЫХ ДЛЯ ТАНГЕНЦИАЛЬНОЙ СЕПАРАЦИИ, СОДЕРЖАЩИХ ВСТРОЕННЫЕ УСИЛИТЕЛИ ТУРБУЛЕНТНОСТИ, И СПОСОБ ИХ ИЗГОТОВЛЕНИЯ

Изобретение относится к фильтрационным мембранам. Сепарационный элемент для тангенциальной сепарации обрабатываемой текучей среды на фильтрат и ретентат, при этом указанный сепарационный элемент содержит монолитную жесткую пористую основу прямолинейной структуры, в которой выполнены несколько каналов для протекания обрабатываемой текучей среды между входом и выходом для ретентата с целью сбора фильтрата от наружной поверхности основы, при этом монолитная жесткая пористая основа ограничивает препятствия, простирающиеся от внутренних стенок указанных каналов, для потока обрабатываемой текучей среды, которые характеризуются идентичностью материала и пористой текстуры с основой, а также непрерывностью материала и пористой текстуры с основой, при этом указанные препятствия создают вариации проходного сечения канала, когда варьирует по меньшей мере один из следующих критериев: площадь прямого сечения, форма прямого сечения, размеры прямого сечения канала. Технический результат – повышение эффективности ...

КОНСТРУКЦИЯ СОТОВОГО ЭЛЕМЕНТА С НЕСУЩИМИ УЧАСТКАМИ (ВАРИАНТЫ)

Изобретение может быть использовано в системах нейтрализации отработавших газов автотракторных средств. Конструкция сотового элемента содержит металлический кожух, в котором размещен собственно сотовый элемент, который имеет множество отделенных друг от друга перегородками каналов и радиальная жесткость которого неоднородна в его окружном направлении (U), а также имеется компенсационный слой, который расположен между кожухом и сотовым элементом по меньшей мере на отдельных участках в окружном направлении (U), при этом указанный компенсационный слой имеет в окружном направлении (U) сотового элемента по меньшей мере два несущих участка, которые воздействуют на сотовый элемент в радиальном направлении (R) с большими усилиями, чем действующие вне этих несущих участков усилия на остальных расположенных в окружном направлении участках, причем упомянутые несущие участки расположены в тех местах сотового элемента, где последний обладает повышенной радиальной жесткостью. Такие несущие участки могут ...

СПОСОБ И УСТАНОВКА ДЛЯ НАНЕСЕНИЯ ПОКРЫТИЯ НА НОСИТЕЛЬ

Настоящее изобретение относится к способу нанесения на носитель покрытия из суспензии. Изобретение относится, в частности, к способу и установке для нанесения покрытий на носители катализаторов, например на носители автомобильных каталитических нейтрализаторов отработавших газов (ОГ). Описана установка для осуществления способа нанесения на носители с открытыми порами покрытия по меньшей мере из одной суспензии, включающей твердые вещества и растворенные в жидкой среде вещества, в количестве, которое во влажном состоянии всегда превышает необходимое заданное количество покрытия и колеблется от одного носителя к другому. Излишек суспензии удаляют из каналов носителя путем ее предварительной вытяжки, затем определяют разницу между фактически нанесенным на носитель количеством суспензии и необходимым заданным количеством покрытия и удалением еще влажной суспензии путем ее повторной вытяжки уменьшают разницу между фактически нанесенным на носитель количеством суспензии и заданным количеством ...

СПОСОБ АЛКОКСИЛИРОВАНИЯ МОНОСПИРТОВ В ПРИСУТСТВИИ МЕТАЛЛООРГАНИЧЕСКИХ КАРКАСНЫХ МАТЕРИАЛОВ

Настоящее изобретение относится к способу алкоксилирования моноспирта, по меньшей мере, одним алкоксилирующим агентом до полиоксиалкиленового спирта, в котором полиоксиалкиленовый спирт содержит от одного до пяти алкоксильных звеньев, в присутствии катализатора. При этом применяют катализатор, содержащий металлоорганический каркасный материал ионов металла, выбранных из ионов элементов группы IIb Периодической системы элементов, и, по меньшей мере, бидентатные координационно связанные органические лиганды, выбранные из замещенных или незамещенных моноароматических поликарбоновых кислот. Способ позволяет получить полиоксиалкиленовые спирты с низким содержание примесей в определенном диапазоне алкоксилирования. 4 з.п. ф-лы, 1 табл.

КАТАЛИТИЧЕСКИЙ ФИЛЬТР САЖИ ДЛЯ ОБРАБОТКИ ВЫХЛОПНОГО ГАЗА ДВИГАТЕЛЯ КОМПРЕССИОННОГО ВОСПЛАМЕНЕНИЯ

Изобретение относится к выхлопной системе для двигателя компрессионного воспламенения, содержащей каталитический фильтр сажи. Указанный каталитический фильтр сажи содержит катализатор окисления для обработки монооксида углерода (CO) и углеводородов (HC) в выхлопном газе из двигателя компрессионного воспламенения, при этом указанный катализатор окисления размещен на фильтрующей подложке, которая представляет собой фильтр с проточными стенками. При этом указанный катализатор окисления содержит: первую зону, содержащую компонент на основе металла платиновой группы (PGM), выбираемый из группы, состоящей из платинового (Pt) компонента, палладиевого (Pd) компонента и их сочетания; компонент на основе щелочноземельного металла, содержащий магний (Mg), кальций (Ca), стронций (Sr), барий (Ba) или сочетание двух или более из них; и материал-носитель, содержащий оксид алюминия, легированный диоксидом кремния, при этом указанный оксид алюминия легирован диоксидом кремния в количестве от 0,5 до 15% ...

СПОСОБ ПОЛУЧЕНИЯ КАТАЛИЗАТОРОВ КАТАЛИТИЧЕСКОГО КРЕКИНГА СО ВЗВЕШЕННЫМ СЛОЕМ С УМЕНЬШЕННЫМИ СКОРОСТЯМИ ИЗНАШИВАНИЯ

Каталитическая микросфера каталитического крекинга со взвешенным катализатором, содержащая цеолит, где указанная микросфера сформирована из пульпы, содержащей: i) каолин, который прокаливали вне его экзотермического перехода; и или ii) кристаллы цеолита, или iii) гидратированный каолин и/или метакаолин, пульпа была смешана с 0.005-0.5 мас.% катионоактивного полиэлектролита относительно массы i) + ii) или i) + iii) перед или во время формирования указанной микросферы. Также представлен способ получения каталитической микросферы. Технический результат - обеспечить катализаторы каталитического крекинга со взвешенным слоем, имеющим улучшенную устойчивость к изнашиванию. 2 н. и 16 з.п. ф-лы, 8 табл., 4 ил., 2 пр.

КАТАЛИТИЧЕСКОЕ ИЗДЕЛИЕ ДЛЯ ПРИМЕНЕНИЯ В СИСТЕМЕ ОБРАБОТКИ ВЫХЛОПНЫХ ГАЗОВ

Группа изобретений относится к области катализаторов, а именно к каталитическим изделиям, предназначенным для обработки потока отработавших газов, образующихся при сгорании топлива. Описаны: каталитическое изделие, содержащее каталитически активную подложку, включающую один или более каналов, проходящих вдоль ее осевой длины, через которые при использовании протекает отработавший газ, образующийся при сгорании топлива, причем один или более каналов имеют первую поверхность для контакта с потоком отработавших газов, образующихся при сгорании топлива; при этом подложка выполнена из материала экструдированного ванадийсодержащего катализатора SCR, причем первый слой расположен по меньшей мере на части первой поверхности, при этом первый слой содержит покрытие из пористого оксида композиции каталитического нейтрализатора проскока аммиака, содержащего один или более металлов платиновой группы, поддерживаемых на материале носителя на основе частиц оксида металла, и при этом слой, содержащий покрытие ...

АДСОРБЕР-КАТАЛИЗАТОР NOx

Изобретение относится к катализатору-ловушке обедненных NOx, содержащему: i) первый слой, причем указанный первый слой содержит смесь или сплав платины и палладия, первый неорганический оксид, который выбран из группы, состоящей из оксида алюминия и диоксида кремния-оксида алюминия, активатор, где данный активатор содержит барий, и материал, абсорбирующий углеводороды, причем материал, абсорбирующий углеводороды, является бета-цеолитом; и ii) второй слой, причем указанный второй слой содержит один или несколько металлов платиновой группы, материал, способный к аккумулированию кислорода (OSC), где указанный OSC выбран из группы, состоящей из оксида церия, и смешанного оксида церия-диоксида циркония, и второй неорганический оксид, причем указанный второй неорганический оксид выбран из группы, состоящей из оксида алюминия и сложного оксида лантана/оксида алюминия; где первый слой по существу не содержит материала, способного к аккумулированию кислорода (OSC), и где второй слой нанесен на первый ...

КАТАЛИЗАТОР И СПОСОБ РАЗЛОЖЕНИЯ МОНООКСИДА ДИАЗОТА И СПОСОБ И УСТРОЙСТВО ДЛЯ ПОЛУЧЕНИЯ АЗОТНОЙ КИСЛОТЫ

Изобретение относится к особому соединению перовскитного типа, катализатору, содержащему такое соединение перовскитного типа, способу разложения монооксида диазота (N2O), устройству для получения азотной кислоты и способу получения азотной кислоты. Изобретение относится также к применению указанного соединения перовскитного типа для разложения N2O. Описано устройство в способе получения азотной кислоты на стадии окисления аммиака, включающее соединение перовскитного типа, предназначенное для разложения монооксида диазота, общей формулы (1), при этом по ходу потока, содержащего продукт газа, расположены катализатор окисления аммиака, одна или несколько разделительных сеток и соединение перовскитного типа. Описан способ получения азотной кислоты с использованием данного устройства. Описан катализатор, для использования в данном устройстве, в состав которого входят носитель с сотовой структурой и соединение перовскитного типа общей формулы (1). Также описаны способ разложения монооксида диазота ...

КАТАЛИЗАТОР ФИШЕРА-ТРОПША

Изобретение относится к катализатору Фишера-Тропша, содержащему кобальт и цинк, к способу его получения и применению в способе Фишера-Тропша. Описан катализатор, содержащий совместно осажденные частицы кобальта и цинка, причем указанные частицы имеют среднеобъемный размер частиц менее 150 мкм и распределение частиц по размерам, при котором, по меньшей мере, 90% объема частиц катализатора имеет размер между 0,4 и 2,5-кратный по отношению к среднему размеру частиц, и где атомное соотношение цинка и кобальта находится в пределах от 40 до 0,1. Описан также способ получения катализатора, по которому кислотный раствор, содержащий ионы цинка и ионы кобальта при общей концентрации от 0,1 до 5 мол/литр, и щелочной и кислотный раствор подают в реактор, содержащий водную среду, где кислотный раствор и щелочной раствор контактируют в водной среде при значении рН 4-9, отклоняющемуся самое большое на ±0,2 рН-единицы от заданного значения, при перемешивании, частота которого обусловлена подводимой мощностью ...

КАЛИБРОВАННЫЙ НОСИТЕЛЬ КАТАЛИТИЧЕСКОГО НЕЙТРАЛИЗАТОРА С ГОФРИРОВАННОЙ ВТУЛКОЙ И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

Изобретение может быть применено в системах впуска отработавших газов ДВС самоходных машин и транспортных средств. Способ изготовления носителя каталитического нейтрализатора, содержащего сотовый элемент, состоящий из множества по меньшей мере частично профилированных или структурированных слоев, образующих проточные для текучей среды каналы, кожух, который по меньшей мере частично охватывает сотовый элемент и по меньшей мере одну гофрированную втулку, расположенную между сотовым элементом и кожухом и соединяющую их между собой, заключается в том, что изготавливают сотовый элемент, который имеет наружный размер, который по меньшей мере частично определяется свободными концами слоев, изготавливают по меньшей мере одну гофрированную втулку с профильным контуром, изготавливают кожух с внутренним контуром, сотовый элемент помещают по меньшей мере в одну гофрированную втулку, по меньшей мере одну гофрированную втулку вместе с находящимся в ней сотовым элементом помещают в кожух и кожух подвергают ...

СПОСОБ ИЗГОТОВЛЕНИЯ СОТОВОГО ЭЛЕМЕНТА ИЗ МЕТАЛЛИЧЕСКИХ ЛИСТОВ, ИМЕЮЩИХ ПО МЕНЬШЕЙ МЕРЕ ЧАСТИЧНО МНОГОСЛОЙНУЮ СТРУКТУРУ

Изобретение предназначено для изготовления сотовых элементов, применяемых, как правило, в качестве корпусов-носителей каталитических нейтрализаторов. Способ изготовления сотового элемента, в котором набирают в пакет и/или свертывают в рулон металлические листы. По меньшей мере одна часть металлических листов выполнена из первоначально многослойного материала, который включает по меньшей мере один слой из содержащей хром стали и по меньшей мере один содержащий в основном алюминий слой, которые при последующей термической обработке в значительной мере гомогенизируются за счет диффузии. По меньшей мере часть металлических листов имеет структуру, повышающую упругость сотового элемента до и во время термической обработки. Сотовый элемент вставляют в трубчатый кожух с таким предварительным сжатием, при котором при термической обработке обеспечивается постоянное прилегание листов друг к другу в местах их контакта. За счет дополнительных микроструктур по меньшей мере на одной части металлических ...

ЭЛЕМЕНТ С СОТОВОЙ СТРУКТУРОЙ ИЗ ПОСЛОЙНО РАЗМЕЩЕННЫХ МЕТАЛЛИЧЕСКИХ ЛИСТОВ, ВЫПОЛНЕННЫХ ИЗ РАЗЛИЧНЫХ ПОЛУФАБРИКАТОВ

Изобретение относится к двигателестроению и может быть использовано для очистки отработанных газов двигателя внутреннего сгорания транспортного средства. Элемент с сотовой структурой каталитического реактора выполнен из попеременно чередующихся послойно размещенных гладких и структурированных листов, причем по крайней мере один слой листового металла выполнен из полуфабриката большей толщины по сравнению с остальными слоями. Все гладкие металлические листы имеют одинаковую толщину 0,04-0,06 мм, предпочтительно 0,05 мм. Все структурированные листы имеют одинаковую толщину 0,025-0,045 мм, предпочтительно 0,04 мм. Относительно друг друга гладкие и структурированные листы выполнены из полуфабрикатов разной толщины и/или обладающих разными свойствами. Все структурированные металлические листы выполнены более тонкими предпочтительно на 0,01 мм по сравнению с гладкими металлическими листами. Технический результат - изобретение возможно использовать в условиях, при которых отсутствуют нагрузки, ...

СПОСОБ ПРИГОТОВЛЕНИЯ КАТАЛИЗАТОРА ДЛЯ ПОЛУЧЕНИЯ СИНТЕЗ-ГАЗА ИЗ МЕТАНА, КАТАЛИЗАТОР, ПРИГОТОВЛЕННЫЙ ПО ЭТОМУ СПОСОБУ, И СПОСОБ ПОЛУЧЕНИЯ СИНТЕЗ-ГАЗА ИЗ МЕТАНА С ЕГО ИСПОЛЬЗОВАНИЕМ

Изобретение относится к технологии переработки газообразного углеводородного сырья. Описан способ приготовления катализатора для получения синтез-газа, который включает электрохимическую обработку в ионной жидкости бутилметилимидазолий ацетат BMIMAc и последующее нанесение методом электрохимического платинирования платины, при этом в качестве носителя используется пористый носитель в виде металлических волокон, спеченных и спрессованных в виде пористых листов нержавеющей стали. Катализатор для получения синтез-газа из метана представляет собой скрученные в спираль пористые листы нержавеющей стали с нанесенной на его поверхность металлической платиной и содержит платину в количестве 0,1-1 мас.%. Процесс получения синтез-газа из метана путем его окислительной конверсии проводят при атмосферном давлении в проточном реакторе при контактировании катализатора, нагретого до температуры 650-850°C, с метано-воздушной смесью с мольным соотношением О/СНв диапазоне 0,48-0,52 при объемной скорости подачи ...

ЭЛЕКТРОИЗОЛИРУЮЩАЯ ОПОРНАЯ СТРУКТУРА С ВОЗМОЖНОСТЬЮ МЕТАЛЛИЧЕСКОГО ПРИСОЕДИНЕНИЯ, СПОСОБ ЕЕ ИЗГОТОВЛЕНИЯ И ЕЕ ПРИМЕНЕНИЕ

Изобретение относится к электротехнике и может быть использовано, в частности, в электрообогревательных элементах с сотовой структурой в тех случаях, когда электропроводящие детали необходимо располагать электроизолированно одна от другой. Задачей настоящего изобретения является создание электроизолирующей опорной структуры, выполненной с возможностью металлического присоединения к электрически отделенным одна от другой электропроводящим деталям, которая выдерживает высокие механические нагрузки во всех направлениях, в частности растягивающие усилия. Сущность изобретения состоит в том, что в опорной структуре в качестве электроизолирующего материала применен пространственно практически со всех сторон запрессованный керамический материал, который расположен между первой и второй металлическими структурами. При этом обеим металлическим структурам придана такая форма, что они практически со всех сторон оказывают давление на керамический материал, не соприкасаясь друг с другом. Способ получения ...

НОСИТЕЛЬ МЕМБРАННОГО КАТАЛИЗАТОРА

КАТАЛИТИЧЕСКИЙ БЛОК И УСТРОЙСТВО ДЛЯ ОЧИСТКИ ГАЗА

Изобретение предназначено для очистки газа. Каталитический блок изготавливается путем поочередного укладывания в стопу прямоугольных каталитических элементов, сформированных путем отрезания каталитических поддерживающих пластин, покрытых каталитическим материалом и имеющих ребра, наклоненные под углом 45° к одному заданному боковому краю каждого из них, и повернутых верхней стороной вниз. Каталитический блок расположен в газовом канале так, что ребра каталитических элементов проходят под углом больше 0° и меньше 90° к направлению потока газа. Когда каталитический блок, содержащий каталитические элементы, покрытые денитрирующим катализатором, помещается в газовый канал, ребра каталитических элементов перегораживают поток газа и генерируют турбулентные потоки ниже по течению газа, чтобы способствовать контакту аммиака и содержащихся в отработанном газе окислов азота с катализатором. Когда поток газа возмущается, толщина ламинарных пленок, покрывающих поверхность каталитических элементов, ...

УСТРОЙСТВО И СПОСОБ ДЛЯ ИЗГОТОВЛЕНИЯ ЭЛЕМЕНТА С СОТОВОЙ СТРУКТУРОЙ, В ЧАСТНОСТИ КОРПУСА-НОСИТЕЛЯ КАТАЛИТИЧЕСКОГО НЕЙТРАЛИЗАТОРА

В заявке описано устройство для изготовления элемента с сотовой структурой, состоящего из множества набранных по меньшей мере в один пакет по меньшей мере частично структурированных слоев металлических листов, образующих множество каналов для прохождения текучей среды. Устройство включает поворачивающееся вокруг оси, действующее на каждый пакет вильчатое скручивающее приспособление и смыкающиеся в цельную форму профильные сегменты. Форма образована по меньшей мере двумя профильными сегментами. Каждый профильный сегмент может поворачиваться вокруг соответствующей оси, проходящей параллельно оси скручивающего приспособления, против направления поворота последнего, что позволяет предотвратить деформацию пакетов. 3 с. и 18 з.п. ф-лы, 19 ил.

СПОСОБ ЭКСПЛУАТАЦИИ УСТРОЙСТВА, ИМЕЮЩЕГО ПО МЕНЬШЕЙ МЕРЕ ОДИН ЭЛЕКТРОНАГРЕВАЕМЫЙ СОТОВЫЙ ЭЛЕМЕНТ

Изобретение относится к способу эксплуатации устройства, имеющего по меньшей мере один электронагревательный элемент, используемый для обработки отработавших газов (ОГ). Сущность изобретения: способ эксплуатации устройства, имеющего по меньшей мере один электронагреваемый и проточный для отработавших газов первый сотовый элемент с по меньшей мере одной токораспределительной структурой, на которую при включении перед подачей на нее постоянного греющего напряжения (22) для нагрева сотового элемента (2) сначала подают несколько коротких последовательных импульсов (21) напряжения. Также пригодное для осуществления подобного способа устройство. Техническим результатом изобретения является обеспечение эффективной защиты опорных элементов. 2 н. и 5 з.п. ф-лы, 3 ил.

КАТАЛИТИЧЕСКИЙ ПРЕОБРАЗОВАТЕЛЬ

Изобретение относится к каталитическим преобразователям. Каталитический преобразователь содержит покрытый катализатором канал, имеющий впускное отверстие для пропускания газового потока в продольном направлении и по меньшей мере первый и второй генераторы турбулентности. Генераторы турбулентности предназначены для создания турбулентного потока газа и расположены на расстоянии друг от друга и впускного отверстия. Первый генератор турбулентности расположен ближе к впускному отверстию канала, чем второй генератор турбулентности. Продольный центр первого генератора турбулентности смещен продольно от впускного отверстия канала на расстояние X1, определяемое выражением 0,01<[Х1/(Dh•Re•Sc)] > 0,015, где Dh - гидравлический диаметр канала, Re - число Рейнольдса, Sc - число Шмидта 1 для газа. Технический результат - оптимизация отношения между падением давления и массопередачей газов за счет ввода турбулентности в канал каталитического преобразователя. 7 з.п. ф-лы, 7 ил.

КОТАЛИТИЧЕСКИЙ ЭЛЕМЕНТ ДЛЯ КОНВЕРСИИ АММИАКА

Изобретение относится к сотовым каталитическим элементам для конверсии аммиака и может быть использовано в производствах азотной, синильной кислот, гидроксиламинсульфата в качестве катализатора второй ступени. Сущность изобретения заключается в том, что каталитический элемент выполнен в виде слоя из отдельных призм, соединенных боковыми гранями без зазоров, имеющий сотовые каналы. Новым является то, что диаметр основания призмы и ее высота составляют соответственно 4 - 100 и 2 - 75 эквивалентных диаметров сотового канала. Дополнительные отличия заключаются в том, что основание призмы имеет форму трех-, или четырех-, или шестиугольника, а также в том, что элемент выполнен из материала состава, %: Fe2O3 92; Cr2O3 8 или Fe2O3 89, 5; ZrO2 5; MgO 5; ZrBaO 0,5 или Fe2O3 79; Al2O3 20; MgO 1 или Fe2O3 79,7; Al2O3 20; V2 O5 0,3 или перовскит (СаO•1LaO•9MnO3) 90; Al2O3 8; SiO2 2. Технический результат состоит в увеличении термической прочности и срока службы катализатора. 2 з.п.ф-лы, 8 ил.

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Изобретение относится к области химии и экологии, а именно глубокому окислению органических соединений, которое может быть применено к процессам очистки и обезвреживания газообразных и жидких выбросов, для дожига вредных органических соединений, в том числе летучих, галогенсодержащих и т.п., в отходящих газах. Описан способ глубокого окисления органических соединений, включающий пропускание через слой катализатора потока, содержащего органическое соединение и окислитель, разбавленного инертным газом, отличающийся тем, что в качестве катализатора используют геометрически структурированную систему, включающую микроволокна высококремнеземистого носителя диаметром 5-20 мкм, который характеризуется наличием в инфракрасном спектре полосы поглощения гидроксильных групп с волновым числом ν=3620-3650 сми полушириной 65-75 сми имеет гелеобразный поверхностный слой толщиной от 1 до 500 нм, который характеризуется вязкостью 3000-30000 сП и удельной поверхностью, измеренной методом БЭТ по тепловой десорбции ...

ЯЧЕИСТОЕ ТЕЛО, В ЧАСТНОСТИ НОСИТЕЛЬ КАТАЛИЗАТОРА

Изобретение относится к ячеистому телу, в частности к носителю катализатора, из, по меньшей мере, частично структурированных листов, которые образуют стенки большого числа каналов для протекания среды. По меньшей мере, часть листов 1 имеет основную волнистость с гребнями волн 2 и впадинами между ними 3 и предварительно заданную высоту волны H, причем гребни волн (2) и/или впадины между волнами (3) снабжены большим числом особых элементов 4,5, высота h,h которых меньше или равна высоте волны H, но преимущественно составляет величину между третью и двумя третями высоты волны. Образованные особыми элементами 4,5 дополнительные каналы для омывания среды внутри ячеистого тела могут заметно повышать активность при той же затрате материалов за счет снижения эффектов пограничных слоев среды. Одновременно снижаются площади поверхностей соприкосновения со смежными слоями листов, благодаря чему обеспечивается оптимальное использование примененного материала для каталитически активных поверхностей.

КАТАЛИТИЧЕСКИЙ ПРЕОБРАЗОВАТЕЛЬ ОТРАБОТАВШИХ ГАЗОВ ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ МАЛОЙ МОЩНОСТИ И СПОСОБ ИЗГОТОВЛЕНИЯ КАТАЛИТИЧЕСКОГО ПРЕОБРАЗОВАТЕЛЯ

Для сокращения производственных расходов на изготовление преобразователя в расположенном вблизи ДВС малой мощности корпусе глушителя размещен сотовый элемент, который имеет покрытие из каталитически активного материала и состоит из слоев по меньшей мере частично структурированных металлических листов, образующих проточные каналы для прохождения, при этом указанный сотовый элемент расположен таким образом, чтобы обеспечить принудительное прохождение через него по меньшей мере подавляющей части отработавших газов, образующихся при работе этого ДВС малой мощности, причем такой сотовый элемент образован пакетом уложенных слоями, свернутых в рулон или сфальцованных металлических листов, который при установке в корпус глушителя таким образом обжат при одновременной пластической деформации по меньшей мере 10%, предпочтительно 20-30% каналов, что сотовый элемент полностью заполняет собой по меньшей мере часть объема этого корпуса. За счет значительной пластической деформации части каналов в остальном ...

СОТОВЫЙ ЭЛЕМЕНТ

Изобретение касается сотового элемента 1, через который вдоль оси протекает текучая среда, минуя множество каналов 3 в сотовом элементе 1. Сотовый элемент 1 имеет по меньшей мере два диска 4, 5, размещенных на расстоянии друг от друга и расположенных друг за другом вдоль оси 2, из которых каждый имеет каналы 3. В соответствии с изобретением предусмотрен по меньшей мере один кронштейн 6, 7, 61, 61, 63, размещенный вблизи оси, с помощью которого диски 4, 5 соединяются между собой и опираются друг на друга. Изобретение позволяет выполнить первый диск 4 таким образом, чтобы производился быстрый нагрев его за счет проходящего обработанного газа или за счет проводимого электрического тока и/или была гарантирована механическая прочность сотового элемента 1 за счет соответствующего исполнения второго диска 5 и кронштейна 6, 7, 61, 62, 63. Выполненный согласно изобретению сотовый элемент 1 особенно хорошо подходит для использования в качестве носителя для катализатора в системе отвода отработавших ...

СПОСОБ ГИДРИРОВАНИЯ РАСТИТЕЛЬНЫХ МАСЕЛ И ДИСТИЛЛИРОВАННЫХ ЖИРНЫХ КИСЛОТ

Изобретение относится к масложировой промышленности, в частности к усовершенствованному способу гидрирования растительных масел и дистиллированных жирных кислот, и может использоваться в пищевой, парфюмерной, нефтехимической и нефтеперерабатывающей промышленности. Способ предусматривает, что гидрирование проводят на стационарном слое катализатора, представляющем собой кристаллиты каталитически активного палладия, нанесенные на поверхность углеродного материала, в качестве углеродного материала используют мезопористый графитоподобный материал с размером гранул 0,5-6,0 мм, предпочтительно 3,0-6,0 мм, с удельной поверхностью 100-450 м2/г, со средним размером мезопор в интервале от 40 до 400 Å, суммарным объемом пор 0,2-0,6 см3/г и долей мезопор в общем объеме пор не менее 0,6, в котором кристаллиты палладия в объеме гранул углеродного материала распределены так, чтобы максимумы распределения активного компонента находились на расстоянии от внешней поверхности гранулы, соответствующем 1-30% ...

СПОСОБ ИЗГОТОВЛЕНИЯ МОНОЛИТНОГО СОТОВОГО НОСИТЕЛЯ ДЛЯ КАТАЛИТИЧЕСКИХ НЕЙТРАЛИЗАТОРОВ ОТРАБОТАВШИХ ГАЗОВ ИЗГОТОВЛЕННЫЙ ЭТИМ СПОСОБОМ

Изобретение относится к способу получения монолитного сотового носителя для каталитических нейтрализаторов отработавших газов двигателей внутреннего сгорания и носителю, изготовленному этим способом. Описан способ, включающий свертывание металлической жаростойкой ленты в блок путем наложения гладкой и гофрированной ее частей с образованием каналов, очистку металлической ленты блока химической обработкой в щелочном растворе с применением ультразвука и с последующим соединением путем диффузионной сварки в вакууме в диапазоне 5·10-5-1·10-5мм рт.ст. при ступенчатом нагреве до температуры 1250+/-10°С и изотермической выдержке в течение 12-17 мин чередующихся слоев металлической ленты друг с другом в монолитную конструкцию, состоящую из параллельных каналов треугольной или трапециевидной формы с плотностью до 600 штук на кв.дюйм Описан также носитель для каталитических нейтрализаторов отработавших газов двигателей внутреннего сгорания, который представляет собой монолитную металлическую конструкцию ...

ЭЛЕКТРОПРОВОДЯЩАЯ ЯЧЕИСТАЯ КОНСТРУКЦИЯ НОСИТЕЛЯ КАТАЛИЗАТОРА ДЛЯ ВЫХЛОПНЫХ ГАЗОВ И СПОСОБ КОНТРОЛЯ ПРИ ЭКСПЛУАТАЦИИ ЭЛЕКТРОПРОВОДЯЩЕЙ ЯЧЕИСТОЙ КОНСТРУКЦИИ НОСИТЕЛЯ КАТАЛИЗАТОРА

Использование: двигатели внутреннего сгорания, устройства для каталитической очистки отработавших газов. Сущность изобретения: электропроводящая ячеистая конструкция носителя катализатора для выхлопных газов выполнена в виде электропроводящих ячеистых блоков, установленных в корпусе и образованных слоями частично или полностью структуированных плоского и гофрированного листов фольги, намотанных с образованием газовых каналов и размещенных в виде пакета со слоями, намотанными навстречу один другому с поперечным сечением в форме круга или в форме меандра, листы фольги выполнены толщиной, составляющей 0,03 - 0,12 мм, предпочтительно 0,03 - 0,06 мм. Блоки установлены с зазором один относительно другого, могут быть снабжены радиальными и/или аксиальными электроизолирующими прокладками или покрытиями, расположенными по поверхности поперечного сечения и/или вдоль оси блока с образованием электропроводящих по длине участков с электрическим сопротивлением, составляющим 0,03 - 2,0 Ом, преимущественно ...

КАТАЛИТИЧЕСКИЙ КОНВЕРТЕР С ЭЛЕКТРИЧЕСКИМ НАГРЕВОМ

Использование: преобразование отработанных газов двигателей. Сущность изобретения: каталитический конвертер с электрическим нагревом содержит расположенные последовательно в направлении потока отдельные участки с различной осевой длиной и различным электрическим сопротивлением. Нагреваемые отдельные участки разделены запертым для электрического тока участком элемента с сотовой структурой. При запуске двигателя холодные выхлопные газы поступают на электронагреваемый участок, подвергаются экзотермическому каталитическому преобразованию на электрически запертом участке. Температура газов падает, но остается выше необходимой для каталитического преобразования (300oC), а на следующем электронагреваемом участке вновь повышается до 500oC, после чего в форкатализаторе температура газов понижается до 300oC. Каталитическое преобразование выхлопных газов происходит по всей длине конвертера с изменением температуры на отдельных участках, но всегда температура выхлопных газов выше необходимой для каталитического ...

КАТАЛИТИЧЕСКИЙ РЕАКТОР С ДВУМЯ ИЛИ БОЛЕЕ ЭЛЕМЕНТАМИ С СОТОВОЙ СТРУКТУРОЙ В ОДНОМ ТРУБООБРАЗНОМ КОЖУХЕ И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

Использование: очистка отработанных газов двигателей внутреннего сгорания преимущественно на транспортных средствах. Сущность изобретения: каталитический реактор состоит из трубообразного кожуха, в которой вставлено два отдельных элемента с сотовой структурой из листьев со структурированными слоями. Для обеспечения экономичного изготовления в крупносерийном производстве применяют упругие элементы с сотовой структурой, вставленные с предварительным натяжением в трубообразный кожух. Предварительное натяжение достигается путем упругого сжатия элементов с сотовой структурой на величину, составляющую от 2 до 10% их теоретического, без внутренних напряжений диаметра, причем их упруго сжимают перед вводом в трубообразный кожух и/или трубообразный кожух пластически сжимают после введения элементов с сотовой структурой. Такие элементы остаются благодаря их предварительному натяжению стабильными и во время механических нагрузок при ускоренных процессах изготовления, и пригодны для пайки в вертикальном ...

КАТАЛИЗАТОР СИНТЕЗА ФИШЕРА-ТРОПША И СПОСОБ ЕГО ПОЛУЧЕНИЯ

Изобретение относится к катализаторам синтеза Фишера-Тропша. Описан катализатор синтеза Фишера-Тропша, содержащий носитель из цеолита Hβ и каталитически активное вещество - кобальт, причем носитель дополнительно содержит бемит и представляет собой полые цилиндры с соотношением внутреннего диаметра к внешнему 0,5…3:2…7 мм со следующим составом катализатора (мас.%): кобальт - 10-40; бемит - 6-18; цеолит Hβ - 48-81. Описан способ получения катализатора синтеза Фишера-Тропша, включающий приготовление гранулированного носителя на основе цеолита, нанесение соединения кобальта на прокаленный носитель, просушивание и прокаливание, отличающийся тем, что носитель готовят из смеси цеолита и бемита, а гранулируют путем формования в виде полых цилиндров с соотношением внутреннего диаметра к внешнему 0,5…3:2…7 мм, при этом соотношение ингридиентов находится в следующих пределах (мас.%): кобальт - 10-40; бемит - 6-18; цеолит Hβ - 48-81. Технический результат - получен эффективный катализатор синтеза Фишера-Тропша ...

СИСТЕМА СЕЛЕКТИВНОГО КАТАЛИТИЧЕСКОГО ВОССТАНОВЛЕНИЯ ОКИСЛОВ АЗОТА В ОТРАБОТАВШИХ ГАЗАХ ДИЗЕЛЬНЫХ ДВИГАТЕЛЕЙ

Изобретение относится к очистке отработавших газов дизельного двигателя. Система содержит нейтрализатор 1 отработавших газов, катализатор 2, устройство 3 хранения и подачи мочевины, трубку 4 подачи мочевины через форсунку 5 в трубопровод 6 выпуска отработавших газов. Трубка 4 сделана из немагнитного материала и выполнена зигзагообразной с двумя коленами, между которыми расположено магнитное кольцо 7. Технический результатом изобретения является увеличение скорости термического разложения раствора мочевины, повышение эффективности восстановления NO, расширение температурного диапазона эффективного взаимодействия оксидов азота и аммиака, сокращение выбросов непрореагировавшего аммиака. 2 ил.

КОНСТРУКЦИЯ КАТАЛИЗАТОРА С ЦЕЛЬНЫМИ ТЕПЛООБМЕННЫМИ ПОВЕРХНОСТЯМИ

Изобретение относится к конструкции катализатора, имеющего цельные теплообменные поверхности. Конструкция катализатора включает металлический носитель, имеющий проходы для горючих газов. На часть внутренних поверхностей проходов нанесен каталитический материал для теплообмена поверхностей, покрытых каталитическим материалом с внутренними поверхностями, не покрытыми каталитическим материалом. Носитель катализатора дополнительно включает тонкослойное покрытие. 2 с. и 38 з.п. ф-лы, 9 ил., 2 табл.

ОЧИЩАЮЩИЙ ОТ ДИСПЕРСНЫХ ЧАСТИЦ МАТЕРИАЛ, ФИЛЬТР-КАТАЛИЗАТОР ДЛЯ ОЧИСТКИ ОТ ДИСПЕРСНЫХ ЧАСТИЦ С ИСПОЛЬЗОВАНИЕМ ОЧИЩАЮЩЕГО ОТ ДИСПЕРСНЫХ ЧАСТИЦ МАТЕРИАЛА И СПОСОБ РЕГЕНЕРИРОВАНИЯ ФИЛЬТРА-КАТАЛИЗАТОРА ДЛЯ ОЧИСТКИ ОТ ДИСПЕРСНЫХ ЧАСТИЦ

Изобретение относится к очищающему от дисперсных частиц материалу и его использованию. Описан очищающий от дисперсных частиц материал, используемый для фильтра-катализатора для очистки от дисперсных частиц, причем фильтр-катализатор расположен на пути потока выхлопных газов двигателя внутреннего сгорания, улавливает дисперсные частицы в выхлопных газах, образующихся в двигателе внутреннего сгорания, и сжигает осаждаемые дисперсные частицы с тем, чтобы регенерироваться, причем очищающий от дисперсных частиц материал включает в себя: оксид, содержащий: церий (Се), обладающий способностью аккумулирования-высвобождения кислорода; и по меньшей мере один металл (Me), выбранный из группы, состоящей из циркония (Zr), иттрия (Y), лантана (La), празеодима (Рr), стронция (Sr), ниобия (Nb) и неодима (Nd), при этом отношение содержаний (Се:Ме) церия к металлу составляет от 6:4 до 9:1 в единицах атомного отношения, и степень кристалличности (CR), представленная следующей формулой (1), составляет в пределах ...

КАТАЛИЗАТОР ОТРАБОТАВШИХ ГАЗОВ

Изобретение относится к катализатору для очистки отработавших газов, выпускаемых из двигателя внутреннего сгорания. Катализатор включает основной материал со множеством внутренних поверхностей стенок, сформированных множеством сквозных отверстий. Каждое из сквозных отверстий имеет центральную ось. Отверстия проходят сквозь основной материал от первой торцевой поверхности ко второй торцевой поверхности. На множестве внутренних поверхностей стенок сформировано множество каталитических слоев. Каждый из каталитических слоев подразделяется на первую область, пролегающую от первой торцевой поверхности ко второй торцевой поверхности на заданное расстояние, вторую область, пролегающую от второй торцевой поверхности к первой торцевой поверхности на заданное расстояние и третью область, расположенную между первой и второй областями. Каталитический слой сформирован таким образом, что расстояние (h1) от центральной оси сквозного отверстия до внутренней поверхности каталитического слоя в первой области ...

ЭЛЕМЕНТ С СОТОВОЙ СТРУКТУРОЙ, СОЕДИНЕННЫЙ С ТРУБЧАТЫМ КОЖУХОМ ТОЛЬКО НА ОТДЕЛЬНЫХ УЧАСТКАХ

Элемент с сотовой структурой может быть использован в устройстве каталитического превращения отработанных газов (ОГ) в системе выпуска ОГ, в частности в системе выпуска ОГ теплового двигателя, предпочтительно двигателя внутреннего сгорания с искровым зажиганием. Элемент (2) с сотовой структурой окружен гладким участком (8,9) металлического листа, проходящим в осевом направлении на части длины элемента (2) с сотовой структурой. Края металлических листов сотового элемента прилегают внутри, по крайней мере, к одному гладкому участку. Металлический лист является составной частью элемента с сотовой структурой и расположен в осевой зоне между элементом с сотовой структурой и трубчатым кожухом (1). В этой осевой зоне исключается нежелательное припаивание элемента (2) с сотовой структурой к трубчатому кожуху (1) вне зависимости от используемого метода пайки. 4 з.п.ф-лы, 7 ил.

ФОЛЬГА ИЗ НЕРЖАВЕЮЩЕЙ СТАЛИ И НОСИТЕЛЬ КАТАЛИЗАТОРА ДЛЯ УСТРОЙСТВА ОЧИСТКИ ВЫХЛОПНОГО ГАЗА, ИСПОЛЬЗУЮЩИЙ ЭТУ ФОЛЬГУ

Изобретение относится к области металлургии, а именно к фольге из нержавеющей стали, используемой в носителе катализатора устройства очистки выхлопного газа автомобиля. Фольга выполнена из нержавеющей стали, содержащей, в мас.%: 0,05 или меньше С, 2,0 или меньше Si, 1,0 или меньше Мn, 0,003 или меньше S, 0,05 или меньше Р, 25,0 - 35,0 Сr, 0,05 - 0,30 Ni, 3,0 - 10,0 Аl, 0,10 или меньше N, 0,02 или меньше Ti, 0,02 или меньше Nb, 0,02 или меньше Та, 0,005 - 0,20 Zr, 0,02 или меньше Се, 0,03 - 0,20 РЗЭ (редкоземельного элемента), исключая Се, 0,5 - 6,0 в сумме по меньшей мере одного из Мо и W, Fe и случайные примеси остальное. Стальная фольга имеет высокую прочность при высоких температурах, превосходную стойкость к окислению при высоких температурах и превосходную стойкость к солевой коррозии. 2 н. и 5 з.п.ф-лы, 4 ил., 2 табл., 1 пр.

СЕТКА ТРЕХМЕРНОГО ПЛЕТЕНИЯ ДЛЯ КАТАЛИТИЧЕСКИХ РЕАКЦИЙ

Изобретение относится к сетке трехмерного плетения для каталитических реакций и может быть использовано при получении азотной кислоты на стадии окисления аммиака. Сущность изобретения заключается в том, что сетка выполнена в два и более слоев, а ячейки отдельных слоев связаны друг с другом ворсовыми нитями до 10 нитей на 1 меш, причем нити расположены под углом от 0 до 50o к направлению потоков реакционных газов. Ворсовые нити имеют длину от 1 до 10 мм. Использование изобретения позволяет повысить степень конверсии аммиака. 3 з.п. ф-лы.

КАТАЛИЗАТОР ДЛЯ РАЗЛОЖЕНИЯ ОЗОНА И СПОСОБ ЕГО ПОЛУЧЕНИЯ

Изобретение относится к области каталитической очистки воздуха от кислородсодержащих примесей, таких как озон, и может быть использовано, в частности, для удаления озона из воздуха. Описан катализатор для разложения озона на основе диоксида марганца, причем он выполнен из открытоячеистого ретикулированного полиуретана в форме пластин и дополнительно содержит перовскит - манганат лантана, допированный серебром при следующем соотношении компонентов, мас.%: диоксид марганца - 5-15, манганат лантана - 2-10, серебро (чернь) - 0,1-0,5, полиуретан открытоячеистый ретикулированный - остальное. Описан способ получения катализатора, включающий сушку и термическую обработку, причем термической обработке на воздухе в течение 2-3 часов при температуре 300°С подвергают раствор, содержащий в мас.%: шестиводного азотнокислого марганца - 45-55; манганата лантана - 20-25; нитрата серебра - 0,1-0,5, после чего полученную композицию, имеющую указанный выше состав, размалывают, отбирают фракции размером менее ...

Катализатор защитного слоя для реакторов гидрогенизационной переработки нефтяного сырья и способ его получения

Изобретение относится к нефтеперерабатывающей промышленности, в частности к катализаторам гидрогенизационной переработки нефтяных фракций и способам их получения. Описан катализатор защитного слоя для реакторов гидрогенизационной переработки нефтяного сырья на высокопористом ячеистом носителе, содержащего активные компоненты, который отличается тем, что включает привитый слой γ-оксида алюминия в количестве до 2,3-9% масс., имеющий мезопоры диаметром 3-7 нм и макропоры диаметром 800-2000 нм, содержащий в качестве активных компонентов молибден или вольфрам в виде фосфорно-молибденовой или фосфорно-вольфрамовой кислот в количестве 1,00-3,00% масс. в пересчете на оксиды, а также никель или кобальт в виде цитратов в количестве 0,35-1,05% масс. в пересчете на оксиды, катализатор имеет форму цилиндров диаметром 20-50 мм, высотой 10-30 мм с размером ячеек 0,8-2,5 мм. Также разработан способ получения катализатора. Технический результат - разработанный катализатор защитного слоя для реакторов гидрогенизационной ...

СПОСОБ ИЗГОТОВЛЕНИЯ БЛОЧНОГО, СОТОВОЙ СТРУКТУРЫ, НОСИТЕЛЯ КАТАЛИЗАТОРА

Изобретение относится к области очистки газовых выбросов и может быть использовано при изготовлении блочных, "сотовой" структуры носителей катализаторов. Сущность изобретения: изготавливают алюминиевую ленту с поперечными выступами на одной из ее сторон, образующими незамкнутый контур соты. Свертывают готовую ленту в рулон для замыкания контуров сот. Затем одновременно осуществляют сварку сот и окисление алюминия. Перед сваркой сот и окислением алюминия соты блочного носителя заполняют огнеупорным материалом - порошкообразным карборундом. 2 з.п. ф-лы, 2 ил.

МЕТАЛЛИЧЕСКАЯ ФОЛЬГА, ПОКРЫТАЯ СЛОЕМ ЦЕОЛИТА

... 1. Покрытая цеолитом металлическая фольга, прежде всего в виде элемента с сотовой структурой, со следующими признаками: -фольга (1), выполненная из стали, содержащей хром и/или алюминий; - поверхность покрыта оксидным слоем (2); - на оксидный слой (2) нанесен керамический фосфатирующий слой (3), служащий для повышения адгезии; - на керамический слой (3), предназначенный для повышения адгезии, по известной методике может быть нанесен слои (4) цеолита. 2. Фольга по п. 1, отличающаяся тем. что фольга (1) выполнена из жаропрочной и коррозионностойкой стали, содержащей предпочтительно более 3,5% алюминия и более 15% хрома, прежде всего приблизительно 5% алюминия и приблизительно 20% хрома. 3. Фольга по п. 1 или 2, отличающаяся тем. что оксидный слой (2) представляет собой мелкозернистый слой оксида алюминия без примесей или только с небольшим количеством примесей оксидов хрома и железа, образуемый предпочтительно путем продолжительного отжига в воздушной среде. 4. Фольга по п. 3, отличающаяся ...

КАТАЛИЗАТОР ПОЛУЧЕНИЯ СИНТЕЗ-ГАЗА И СПОСОБ ПОЛУЧЕНИЯ СИНТЕЗ-ГАЗА С ЕГО ИСПОЛЬЗОВАНИЕМ

... 1. Катализатор для производства синтез-газа, содержащего моноксид углерода и водород в качестве основных компонентов, из газового сырья, содержащего углеводород, имеющий от 1 до 5 атомов углерода в каждой молекуле и кислород, отличающийся тем, что катализатор для производства синтез-газа представляет собой носитель и металл VIII группы, нанесенный на носитель; упомянутый носитель содержит первый компонент, второй компонент и третий компонент; упомянутый первый компонент представляет собой оксид, по меньшей мере, щелочноземельного металла, выбранного из группы магния, кальция, стронция и бария; упомянутый второй компонент представляет собой оксид, по меньшей мере, элемента, выбранного из группы скандия, иттрия и лантаноидов; упомянутый третий компонент представляет собой диоксид циркония или вещество, содержащее диоксид циркония в качестве основного компонента, и имеет свойства твердого электролита, при этом мольное соотношение упомянутого второго компонента и упомянутого первого компонента ...

СТРУКТУРА КАТАЛИЗАТОРА

... 1. Способ синтеза углеводородов в трехфазном реакторе, включающий следующие стадии: (i) введение синтез-газа в реактор; (ii) приведение в контакт синтез-газа с катализатором Фишера-Тропша; и (iii) удаление продуктов из реактора, где стадия (i) включает введение части или всего синтез-газа в реактор в или вблизи к нижней части реактора; и стадия (ii) включает контактирование реагентов синтез-газа с каталитической структурой неподвижной внутри реактора, где каталитическая структура включает один или более пористых каталитических элементов, закрепляемых внутри реактора, каждый из указанных пористых каталитических элементов имеет размер, по крайней мере, 1 см3, предпочтительно 10 см3, и где объем пор внутри каждого пористого каталитического элемента составляет, по крайней мере, 60% по сравнению с объемом пористых каталитических элементов и каждый пористый каталитический элемент включает материал катализатора Фишера-Тропша, в котором указанный пористый элемент или каждый пористый элемент катализатора ...

КАТАЛИТИЧЕСКОЕ ИЗДЕЛИЕ И ЕГО ПРИМЕНЕНИЕ ДЛЯ ФИЛЬТРАЦИИ ТОНКОДИСПЕРСНЫХ ЧАСТИЦ

Состав и способ приготовления катализатора гидрирования диолефинов

Изобретение относится к нефтеперерабатывающей промышленности, в частности к катализаторам гидрооблагораживания нефтяных фракций, а именно, к катализаторам защитного слоя для гидрирования диолефинов и к способам их приготовления. Предлагается катализатор гидрирования диолефинов для использования в составе защитного слоя в процессе гидрооблагораживания нефтяных дистиллятов, состоящий из модифицированного носителя, приготовленного на основе высокопористого ячеистого материала с ячеистостью 10-30 меш и привитого слоя гамма-оксида алюминия, а также нанесенных на носитель биметаллических комплексных соединений металлов VIII и VI групп. Катализатор отличается тем, что высокопористый ячеистый материал имеет открытую пористость не менее 50%, в качестве биметаллических комплексных соединений металлов VIII и VI групп катализатор включает соединения никеля или кобальта и молибдена, а содержание компонентов в прокаленном при температуре 550°С катализаторе составляет, мас.%: высокопористый ячеистый материал ...

КАТАЛИЗАТОР СЕЛЕКТИВНОГО КАТАЛИТИЧЕСКОГО ВОССТАНОВЛЕНИЯ

Настоящее изобретение относится к катализатору для селективного восстановления оксидов азота, имеющему два каталитически активных слоя А и Б, при этом слой А содержит оксидный носитель, а также компоненты А1 и А2, а слой Б содержит оксидный носитель, а также компоненты Б1, Б2 и Б3, где А1 и Б1 обозначают по меньшей мере один оксид ванадия, А2 и Б2 обозначают по меньшей мере один оксид вольфрама и Б3 обозначает по меньшей мере один оксид кремния, отличающийся тем, что доля компонента А1 в слое А в мас. % в пересчете на общую массу этого слоя А больше, чем доля компонента Б1 в слое Б в мас. % в пересчете на общую массу этого слоя Б, а доля слоя А в мас. % в пересчете на общую массу слоев А и Б больше, чем доля слоя Б. Также заявлены способ снижения оксидов азота в отработавших газах (ОГ), работающих на обедненных смесях двигателей внутреннего сгорания с использованием указанного выше катализатора, система снижения токсичности отработавших газов (ОГ), имеющая указанный выше катализатор и способ ...

ГРАНУЛИРОВАННЫЙ ЦЕОЛИТ ZSM-5 БЕЗ СВЯЗУЮЩЕГО И СПОСОБ ЕГО ПОЛУЧЕНИЯ

Изобретение относится к синтезу цеолитов. Описан способ получения гранулированного без связующего кристаллического цеолита ZSM-5, включающий смешение порошкообразного цеолита ZSM-5 с другим сырьевым компонентом, увлажнение полученной смеси, формование гранул, сушку, гидротермальную кристаллизацию при повышенной температуре, отмывку, сушку и последующую прокалку гранул, отличающийся тем, что в качестве другого сырьевого компонента в смесь для формования гранул вводят предварительно полученный аморфный алюмосиликат с мольным соотношением SiO2/Al2O3=30 в таком количестве, чтобы общее массовое содержание компонентов в смеси составляло: порошкообразный цеолит ZSM-5 50-65%, аморфный алюмосиликат 35-50%, увлажнение полученной смеси осуществляют путем добавления воды, прокалку сформованных гранул проводят при 550°С в атмосфере воздуха в течение 4 часов, гидротермальную кристаллизацию осуществляют из реакционных смесей следующего состава: (3,0-4,0)Na2O⋅(0,5-2,3)R⋅Al2O3⋅(60-80)SiO2⋅(450-900)Н2О, ...

СПОСОБ ПРИГОТОВЛЕНИЯ КАТАЛИЗАТОРА ДЛЯ ОЧИСТКИ ОТРАБОТАВШИХ ГАЗОВ ДВИГАТЕЛЕЙ ВНУТРЕННЕГО СГОРАНИЯ И КАТАЛИЗАТОР, ПОЛУЧЕННЫЙ ЭТИМ СПОСОБОМ

Изобретение относится к способу приготовления катализатора и катализатору на блочном керамическом и металлическом носителе сотовой структуры для очистки отработавших газов двигателей внутреннего сгорания. Описан способ приготовления катализатора для очистки отработавших газов двигателей внутреннего сгорания, включающий предварительное прокаливание инертного сотового блочного носителя, одновременное нанесение на его поверхность промежуточного покрытия из модифицированного оксида алюминия и активной фазы из одного или нескольких металлов платиновой группы из водно-спиртовой суспензии, содержащей следующие компоненты в мас.%: бемит - 15-30, азотнокислый алюминий - 1-2, азотнокислый церий - 4-8, 25%-ный раствор гидроксида аммония - 10-20, одна или несколько неорганических солей металлов платиновой группы, в пересчете на металлы - 0,020-0,052, вода-спирт в массовом соотношении 1:5-1:10 - остальное, сушку и восстановление. Описан также катализатор, полученный указанным выше способом, имеющий ...

СПОСОБ ЖИДКОФАЗНОГО КАТАЛИТИЧЕСКОГО АЛКИЛИРОВАНИЯ АНИЛИНА

Изобретение относится к жидкофазному каталитическому способу получения алкилированного анилина, используемого в качестве добавок к бензину для повышения его октанового числа. Способ заключается в том, что алкилирование анилина осуществляют формалином при соотношении анилин: формалин = 1,6/1,1 в присутствии водорода и неподвижного палладиевого катализатора в этиловом или метиловом спирте при температуре 55-65°С и давлении 0,2-0,4 МПа. Процесс ведут в цилиндрическом реакторе, закрепленном на качалке с числом качаний 120-160 мин-1, в среднюю часть которого помещен пористый блочный ячеистый палладиевый катализатор, активный слой которого модифицирован наночастицами палладия, с пористостью 70-95% и содержанием палладия 1,8-3,7%. При этом водород подают через штуцер крышки реактора. Способ позволяет снизить энергозатраты и уменьшить долю побочных продуктов.

СОТОВЫЙ ЭЛЕМЕНТ

Настоящее изобретение касается сотового элемента, через который вдоль оси протекает текучая среда, минуя множество каналов в сотовом элементе. Сотовый элемент имеет по меньшей мере два диска, размещенные на расстоянии друг от друга и расположенные друг за другом вдоль оси, из которых каждый имеет каналы. В соответствии с изобретением предусмотрен по меньшей мере один кронштейн, размещенный вблизи оси, с помощью которого диски соединяются между собой и опираются друг на друга. Настоящее изобретение позволяет выполнить первый диск таким образом, чтобы производился быстрый нагрев его за счет проходящего отработанного газа или за счет проводимого электрического тока, и/или была гарантирована механическая прочность сотового элемента за счет соответствующего исполнения второго диска и кронштейна. Сотовый элемент особенно хорошо подходит для использования в качестве носителя для катализатора в системе отвода отработавших газов двигателя внутреннего сгорания, например в автомобиле.

НОСИТЕЛЬ КАТАЛИЗАТОРА ИЗ МЕТАЛЛИЧЕСКИХ ВОЛОКОН

Использование: для изготовления каталитических устройств в химической, пищевой, нефтеперерабатывающей, металлургической и других отраслях промышленности. Сущность изобретения: носитель катализатора выполнен из набора пористых пластин, дисков, колец или брикетов, которые изготовлены из пористого материала путем прессования волокон, получаемых из металлической проволоки, и последующего их спекания в безокислительных средах.

ЭКСТРУДИРОВАННЫЙ СОТОВЫЙ ЭЛЕМЕНТ, В ЧАСТНОСТИ КОРПУС-НОСИТЕЛЬ КАТАЛИЗАТОРА, С УСИЛЕННОЙ СТРУКТУРОЙ СТЕНОК

... 1. Экструдированный сотовый элемент (11; 21; 31; 41; 51), в частности корпус-носитель катализатора, имеющий множество сквозных каналов (7) для прохождения текучей среды, по меньшей мере часть которых ограничены и/или отделены друг от друга стенками (2) первой толщины и по меньшей мере часть которых ограничены и/или отделены друг от друга стенками (3) второй толщины, которая больше первой толщины, при этом сотовый элемент (11; 21; 31; 41; 51) имеет придающую ему жесткость структуру (14; 24; 34; 44; 54) стенок, образованную стенками (3) второй толщины, отличающийся тем, что придающая жесткость структура (14; 24; 34; 44; 54) стенок имеет несколько приблизительно прямых перегородок (13, 23, 33) второй толщины, которые, отходя в соответствующем месте поперечно краю сотового элемента, проходят от соответствующей наружной стороны внутрь сотового элемента (11; 21; 31; 41; 51) или полностью пересекают сотовый элемент (11; 21; 31; 41; 51), причем ни один из каналов (7) не ограничен только стенками ...

СПОСОБ НАНЕСЕНИЯ ПОКРЫТИЯ НА ФИЛЬТРОВАЛЬНУЮ ОСНОВУ

НАНЕСЕНИЕ ПОКРЫТИЙ НА ПОДЛОЖКИ КАТАЛИЗАТОРОВ В СГРУППИРОВАННОМ ВИДЕ

... 1. Способ полного или частичного нанесения покрытия на цилиндрические носители из суспензии для нанесения покрытия, каждый из каковых носителей имеет продольную ось, две торцевые поверхности, боковую поверхность, осевую длину L и множество проходящих от первой его торцевой поверхности до второй его торцевой поверхности каналов, путем нанесения покрытия на носители из суспензии для нанесения покрытия в требуемом количестве, для чего носители располагают в положении, в котором их продольная ось ориентирована вертикально, и через по меньшей мере одну из торцевых поверхностей носителей в их каналы вводят суспензию для нанесения покрытия, отличающийся тем, что в устройстве для нанесения покрытия одновременно располагают несколько носителей, в каналы всех носителей одновременно вводят суспензию для нанесения покрытия и затем носители одновременно удаляют из устройства для нанесения покрытия.2. Способ по п.1, при осуществлении которого носители со стороны по меньшей мере одной из их торцевых поверхностей ...

СПОСОБ ПОЛУЧЕНИЯ КАТАЛИЗАТОРА ИЛИ ПРЕДШЕСТВЕННИКА КАТАЛИЗАТОРА

... 1. Способ получения керамической пены, несущей один или более каталитически активных компонентов или их предшественников, причем компонент является активным в форме, отличной от неорганического оксида, включающий пропитку пены пропитывающей фазой, содержащей каталитически активный компонент или его предшественник, и высушивание, причем пропитывающая фаза имеет вязкость больше, чем 1 сПз, любой дренаж пропитывающей фазы из пор пены до высушивания составляет меньше, чем 60% от введенного количества, и на протяжении способа каталитически активный компонент или его предшественник присутствует в одной или более формах, отличных от его неорганического оксида. 2. Способ по п.1, в котором пропитывающая фаза имеет вязкость больше, чем 1 сПз, отличающийся тем, что пропитывающая фаза имеет вязкость 1 сПз при 20°С. 3. Способ по п.1 или 2, отличающийся тем, что пропитывающая фаза имеет вязкость 5 - 80 сПз. 4. Способ по любому из пп.1-3, отличающийся тем, что дренаж пропитывающей фазы из пены до высушивания ...

СПОСОБ ГИДРИРОВАНИЯ НЕЗАМЕЩЕННЫХ ИЛИ АЛКИЛЗАМЕЩЕННЫХ АРОМАТИЧЕСКИХ СОЕДИНЕНИЙ ПРИ ПРИМЕНЕНИИ КАТАЛИЗАТОРА СО СТРУКТУРИРОВАННЫМ ИЛИ МОНОЛИТНЫМ НОСИТЕЛЕМ

... 1. Способ гидрирования по меньшей мере одного незамещенного или замещенного по меньшей мере одной алкильной группой одно- или многоядерного ароматического соединения путем введения в контакт по меньшей мере одного ароматического соединения с содержащим водород газом в присутствии катализатора, содержащего в качестве активного металла по меньшей мере один металл VIII побочной подгруппы периодической системы элементов, нанесенный на структурированный или монолитный носитель. 2. Способ по п.1, в случае которого гидрирование осуществляют при давлениях ниже 50 бар, предпочтительно при давлениях 5-10 бар. 3. Способ по п.1 или 2, в случае которого структурированный носитель выбирают среди тканей, трикотажных полотен, трикотажных изделий, войлоков, пленок, листов или растянутых перфорированных листов. 4. Способ по любому из пп.1-3, в случае которого носитель состоит из металлических, неорганических, органических или синтетических материалов или комбинаций таких материалов. 5. Способ по любому из ...

КАТАЛИЗАТОР НА ОСНОВЕ ОКСИДА АЛЮМИНИЯ ДЛЯ ОБРАБОТКИ ГАЗА, СОДЕРЖАЩЕГО СОЕДИНЕНИЯ СЕРЫ, ПРИМЕНЕНИЕ ЭТИХ КАТАЛИЗАТОРОВ И СПОСОБ ОБРАБОТКИ УКАЗАННЫХ ГАЗОВ

... 1. Катализатор для обработки газов, содержащих сернистые соединения, по реакции Клауса или гидролизом, сформированный в виде пористых частиц на основе оксида алюминия, отличающийся тем, что суммарный объем, диаметр которых выше 0,1 мкм (V), более 12 мл/100 г катализатора, а суммарный объем пор, диаметр которых выше 1 мкм (V), является таким, что соотношение V/V≥ 0,65.2. Катализатор по пункту 1, отличающийся тем, что Vбольше 14 мл/100 г и V/Vвыше 0,70.3. Катализатор по пп. 1 или 2, отличающийся тем, что он содержит 0,5 - 100 мас. % оксида алюминия, предпочтительно 60 - 99%.4. Катализатор по одному из пп. 1 - 3, отличающийся тем, что он содержит по крайне мере один оксид металла, выбранного из группы, содержащей: церий, цирконий, кремний, олово, трехвалентные редко-земельные элементы, молибден, кобальт, никель и железо, в количестве 0 - 40 мас. %.5. Катализатор по одному из пп. 1 - 4, отличающийся тем, что он содержит по крайне мере одно соединение, выбранное из группы: глины, силикаты, сульфаты ...

СПОСОБ ЖИДКОФАЗНОГО КАТАЛИТИЧЕСКОГО АЛКИЛИРОВАНИЯАРОМАТИЧЕСКИХ АМИНОВ

Изобретение относится к способу жидкофазного каталитического алкилирования ароматических аминов, которое может быть использовано в производстве антидетонационных добавок к моторным топливам (бензинам). Способ включает алкилирование ароматических аминов в присутствии водорода и низших спиртов при температуре 50-70°С на гетерогенном катализаторе. Отличительной особенностью способа является алкилирование аминов формалином в реакторе с реакционной зоной, заполненной катализатором, состоящим из блочного высокопористого ячеистого носителя на основе оксида алюминия с пористостью не ниже 70-95% и активного компонента - палладия с массовым содержанием, равным 1,3-2%. Как правило, при алкилировании используют катализатор, полученный пропиткой блочного высокопористого ячеистого носителя растворимыми солями палладия, предварительно обработанными в постоянном магнитном поле. Обычно в случае алкилирования анилина для преимущественного получения монометиланилина используют молярное отношение анилина к ...

КОНСТРУКЦИЯ КАТАЛИЗАТОРА С ЦЕЛЬНЫМИ ТЕПЛООБМЕННЫМИ ПОВЕРХНОСТЯМИ

Изобретение представляет собой конструкцию катализатора, имеющего внутренние цельные теплообменные поверхности. Это позволяет использовать указанную конструкцию в процессах, связанных с выделением большого количества тепла, например в процессах горения, поддерживая при этом температуру катализатора и стенки конструкции на уровне меньшем, чем адиабатическая температура горения горючих газов.

МЕТАЛЛИЧЕСКИЙ КОРПУС-НОСИТЕЛЬ КАТАЛИЗАТОРА ДЛЯ НЕЙТРАЛИЗАЦИИ ОТРАБОТАВШИХ ГАЗОВ, В ЧАСТНОСТИ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ МАЛОЙ МОЩНОСТИ

... 1. Металлический корпус-носитель (1) катализатора для нейтрализации отработавших газов (ОГ) (2), прежде всего ОГ двигателей внутреннего сгорания малой мощности, имеющий продольную ось (10) и множество путей (6, 7) движения потока текучей среды внутри него, причем эти пути (6, 7) движения потока текучей среды выполнены таким образом, чтобы поток ОГ (2) в корпусе-носителе (1) катализатора в целом изменял на входе свое направление, приобретая по меньшей мере одну ориентированную перпендикулярно продольной оси (10) корпуса-носителя составляющую, и по меньшей мере одна часть (6) потока ОГ (2) после повторного изменения направления выходила через выходную поверхность (4) для выпуска текучей среды, имея по меньшей мере одну составляющую, ориентированную в направлении продольной оси (10) корпуса-носителя, отличающийся тем, что пути (6, 7) движения потока выполнены таким образом, чтобы поток ОГ в виде соответствующей его части (6) выходил через выходную поверхность (4) для выпуска текучей среды ...

СПОСОБ ПРИГОТОВЛЕНИЯ КАТАЛИЗИРОВАННОГО ФИЛЬТРА ТВЕРДЫХ ЧАСТИЦ И ФИЛЬТРА ТВЕРДЫХ ЧАСТИЦ

... 1. Способ приготовления катализированного фильтра с проточной фильтрующей стенкой, который включает в себя следующие этапы:а) обеспечение корпуса фильтра с проточной фильтрующей стенкой со множеством продольных впускных проточных каналов и выпускных проточных каналов, разделенных газопроницаемыми пористыми перегородками;б) нанесение пористого оксидного покрытия катализатора, содержащего композицию первого катализатора, который является активным при реакции оксидов азота с оксидом углерода и водородом с получением аммиака, и композицию второго катализатора, который является активным при селективном восстановлении оксидов азота посредством реакции с аммиаком с получением азота, при этом композиция первого катализатора имеет модальный размер частиц больше, чем средний диаметр пор пористых перегородок, и композиция второго катализатора имеет модальный размер частиц меньше, чем средний диаметр пор пористых перегородок;в) нанесение на корпус фильтра пористого оксидного покрытия катализатора посредством ...

ФИЛЬТР ДЛЯ ОЧИСТКИ ОТРАБОТАВШИХ ГАЗОВ И СПОСОБ ОЧИСТКИ ОТРАБОТАВШИХ ГАЗОВ

... 1. Фильтр (11) для очистки отработавших газов, образующихся при работе двигателя внутреннего сгорания, выполненный из по меньшей мере одного полосовидного фильтрующего элемента (1), имеющего по меньшей мере один фильтрующий участок (2) из по меньшей мере частично проточного для текучей среды материала, и необязательно фольги (4), отличающийся тем, что фильтрующий элемент (1) имеет по меньшей мере один контактный участок (3) с каталитически активным покрытием для химического превращения газообразных компонентов отработавших газов и фильтрующий участок (2) для отфильтровывания из отработавших газов присутствующих в них твердых частиц. 2. Фильтр (11) по п.1, отличающийся тем, что контактный участок (3) по меньшей мере частично выполнен из фольги (4). 3. Фильтр (11) по п.1 или 2, отличающийся тем, что фольга (4) выполнена микропрофилированной. 4. Фильтр (11) по п.1 или 2, отличающийся тем, что контактный участок (3) по меньшей мере частично выполнен из проточного для текучей среды материала ...

ПОДНОЖКА НОСИТЕЛЯ КАТАЛИЗАТОРА, ПОКРЫТАЯ "WASHCOAT" КОМПОЗИЦИЕЙ, СОДЕРЖАЩЕЙ ВОЛОКНИСТЫЙ МАТЕРИАЛ

... 1. Подложка твердого носителя катализатора, покрытая «washcoat» композицией, увеличивающей площадь поверхности и имеющей толщину от 5 до 100 мкм, причем указанная композиция включает в себя каталитический компонент, оксид металла и тугоплавкий волокнистый или нитевидный материал, имеющий отношение геометрических размеров длины к толщине больше 5:1. 2. Подложка по п.1, в которой отношение геометрических размеров длины к толщине превышает 50:1. 3. Подложка по п.1, в которой каталитический компонент включает в себя, по меньшей мере, один металл. 4. Подложка по п.3, в которой, по меньшей мере, один металл выбирают из группы, состоящей из благородных металлов, магния, никеля, кобальта, железа, ванадия, меди, молибдена, алюминия, кремния и смесей из любых двух или нескольких указанных металлов. 5. Подложка по п.1, в которой содержание металла доходит до 30 мас.% в расчете на общую массу «washcoat» композиции. 6. Подложка по п.1, в которой «washcoat» композиция обладает реакционной способностью ...

СОТОВЫЙ ЭЛЕМЕНТ, СОСТОЯЩИЙ ИЗ СЛОЕВ С ВЫВЕРНУТЫМИПРОФИЛЬНЫМИ ЭЛЕМЕНТАМИ И СЛОЕВ С СОПРЯЖЕННЫМИ СТРУКТУРАМИ

... 1. Сотовый элемент (13), прежде всего носитель каталитического нейтрализатора и/или фильтр, предпочтительно для применения в автомобильной системе выпуска отработавших газов, образованный из попеременно чередующихся преимущественно гладких (10) и по меньшей мере частично профилированных (1) слоев, образующих проточные для текучей среды в основном в осевом направлении (19) потока полости (12), при этом профилированные слои (1) имеют экстремумы (4, 5) своих профильных структур, контактирующие с соседними преимущественно гладкими слоями (10), и расположенные в зоне этих экстремумов (4, 5) профильных структур вывернутые профильные элементы (2), которые выступают в указанные полости (12) и которые имеют в поперечном сечении сотового элемента (13) плоскостью, перпендикулярной направлению (19) потока, примерно инверсную по отношению к экстремумам (4, 5) профильных структур профилированных слоев форму с образованием в результате в зоне расположения вывернутых профильных элементов (2) разрывов ( ...

Носитель для катализатора конверсии метана

Катализатор для гидродеалкилирования гомологов бензола и нафталина

METHOD FOR MANUFACTURE AND REINFORCEMENT OF CATALYST BLOCK

Носитель катализаторов из пористого вещества

VORRICHTUNG ZUR KATALYTISCHEN REINIGUNG

Filter für Motorabgase

Kernelement für einen kombinierten, elektrisch beheizten und selbsteinleitenden Umwandler

Photocatalyst element esp. for gas phase reactions e.g. steam decomposition - has structure which may be porous or coated with semiconductive material to enhance activation of catalytic material

In catalyst element comprising a catalytic material on the surface of a catalyst structure, the catalyst structure (10) is in the form of a photocatalyst element with a light irradiated surface and that (i) the structure (10) is porous, the pores (36) at the light irradiated surface having a pore depth (T) corresp. to the penetration depth (E) of light into a surface layer (34) of the structure; (ii) the light irradiated surface is formed by a coating (34) which is applied onto a support body (30) and which comprises a semiconductive material in which photo-induced electrons and holes can be produced, the catalytic material (44) being located on the coating (34) and being activatable by the electrons or holes; or (iii) the catalytic material is provided in the form of adjacent individual clusters (44) on the light irradiated surface. USE/ADVANTAGE - Used for photocatalysis of liq. phase or pref. gaseous phase reactions, e.g. NOx decomposition, steam decomposition, methanol and isopropanol ...

DÜSE ZUM FORMEN EINES WABENSTRUKTURKÖRPERS UND VERFAHREN ZUR HERSTELLUNG DESSELBEN

GESINTERTE FORMKOERPER.

IC engine exhaust purifier catalyst carrier prodn. - uses pulse laser traversed across advancing plain and corrugated strips to produce spot welds

Flat and corrugated steel strips are bonded to form part of a carrier matrix for IC engine exhaust purifying catalyst using a laser gun (7) to make spot welds. The strips to be bonded are fed through under this gun - pref. at the stage when they are bing wound together into the matrix. The gun is mounted so that the laser beam can traverse along the corrugations. Traversing rate, impulse frequency and strip feed speed are so synchronised that there are five impulses per traverse, during which time the strips have advanced by one corrugation pitch.

Konischer Wabenkörper mit schräg radial verlaufenden Kanälen

Die vorliegende Erfindung betrifft einen aus Lagen (2, 3) gewickelten und/oder geschichteten Wabenkörper (1) mit einer geometrischen Mittelachse (4) und einem um die Mittelachse (4) herum rotationssymmetrisch angeordneten Hohlraum (5), sowie einer äußeren Mantelfläche (6), wobei jede Lage (2, 3) annähernd konzentrisch um die Mittelachse (4) verläuft, wobei mindestens eine der Lagen (2) zumindest teilweise strukturiert ist, so dass die Lagen (2, 3) eine Vielzahl von für ein Fluid durchströmbaren Kanälen (7) bilden, die von dem Hohlraum (5) in einem nicht rechten Konuswinkel () zur Mittelachse (4) nach außen zur äußeren Mantelfläche (6) verlaufen, und wobei die Kanäle (7) einen sich in ihrem Verlauf von innen nach außen ändernden Kanalquerschnitt (7i, 7a) aufweisen. Bevorzugt beträgt der Konuswinkel () zur Mittelachse (4) 25° bis 85°, vorzugsweise 40° bis 70°, insbesondere etwa 45°. Die besondere Form entsteht insbesondere dadurch, dass mindestens eine strukturierte Lage (2) im Wechsel mit ...

VERFAHREN ZUM BESCHICHTEN UND IMPRAEGNIEREN VON KATALYSATORTRAEGERN UND VORRICHTUNG ZUR DURCHFUEHRUNG DES VERFAHRENS

VERFAHREN ZUM HERSTELLEN VON EXTRUDIERTEN WABENKÖRPERN UND EXTRUDIERWERKZEUG

REDOX-KATALYSATOR FÜR DIE SELEKTIVE KATALYTISCHE REDUKTION SOWIE VERFAHREN ZU SEINER HERSTELLUNG

VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINES WABENKÖRPERS, INSBESONDERE KATALYSATOR-TRÄGERKÖRPERS, MIT GEHÄUSE

WABENKÖRPER AUS BLECHLAGEN MIT VERSTÄRKUNGSSTRUKTUREN

PROCESS FOR LOWERING THE IGNITION TEMPERATURE OF DIESEL-OIL SOOT

VERFAHREN UND VORRICHTUNG ZUM HERSTELLEN STRUKTURIERTER METALLBLECHE

VERFAHREN ZUM BELOTEN EINER ANORDNUNG

VERWENDUNG EINES WABENFILTERS ZUR ABGASREINIGUNG

EXHAUST GAS CLEANING CATALYST AND PROCESS FOR PRODUCTION THEREOF

KATALYSATORTRAEGER MIT CORDIERIT-HONIGWABENSTRUKTUR UND METHODE ZU DESSEN HERSTELLUNG.

METHOD FOR THE SELECTIVE SOLDERING OF A METALLIC CATALYST SUPPORT BODY, AND A CATALYST SUPPORT BODY OBTAINED BY THIS METHOD

Abgasreinigungskatalysator und Herstellungsverfahren dafür

Dieser Katalysator umfasst eine untere katalytische Schicht 2 mit einer katalytischen Fähigkeit, HC und CO zu oxidieren, und eine obere katalytische Schicht 3 mit einer katalytischen Fähigkeit, NOx zu reduzieren. Die untere katalytische Schicht 2 enthält Pt und Pd, die als katalytische Metalle dienen, Zeolith, ein Ce-haltiges Oxid und aktiviertes Aluminiumoxid, und die obere katalytische Schicht 3 enthält aktiviertes Aluminiumoxid, das ein Rh-dotiertes Ce-haltiges Oxid lädt, und ein NOx-Speichermaterial.

Method for removing vinyl monomers from a gas stream

A method for removing vinyl monomers from a gas stream comprises steps of: irradiating a photoactive-inorganic medium by a light emitting unit to activate the photoactive-inorganic medium; and pumping a gas stream including vinyl monomers to contact with the activated photoactive-inorganic medium to make the vinyl monomers in the gas stream to polymerize on the photoactive-inorganic medium to jointly form a polymeric nano-composite.

Gas deacidizing method using an absorbent solution with cos removal through hydrolysis

The method deacidifies a gas including H 2 S and CO 2 . The gas is subjected to an absorption to collect the CO 2 and the H 2 S in an absorber, then to conversion through hydrolysis of the COS to H 2 S and CO 2 in a reactor, and to a second absorption to collect the H 2 S and the CO 2 formed in the reactor. The absorbent solution is regenerated in regenerator. The regenerated absorbent solution is separated into two which are: a main stream supplying the absorber, and a remaining stream supplying the second absorption

AMMONIA OXIDATION CATALYSTS

Ammonia oxidation catalyst units comprising a pair of honeycomb-type blocks having interplaced between them a layer of a gas permeable material performing the function of radially mixing the gas flow, said blocks comprising an ammonia oxidation catalysts, and having height of less than 15 cm and the interplaced layer height of 3 to 0.5 cm. 1. A catalyst for ammonia oxidation formed of one or more catalytic units each of which formed of a pair of blocks having a honeycomb structure containing tubular passages not interconnected through bores , comprising an ammonia oxidation catalyst , each of said blocks having height of less than 15 cm and more than 2 cm and interplaced between them a foamed layer having a height of not more than 3 cm and at least of 0.5 cm , formed of foamed material having open , randomly connected cells.2. The catalyst according to claim 1 , wherein the interplaced foamed layer has a height of 0.5-2 cm.3. The catalyst according to claim 1 , wherein the height of each of the blocks is from 2 to 6 cm.4. The catalyst according to claim 1 , wherein the density of the cells of the foamed layer ranges from 3 to 10 cells/cm.5. The catalyst according to claim 1 , wherein the blocks are formed of ceramic or metallic material.6. The catalyst according to claim 1 , wherein the blocks have a number of cells per cm claim 1 , which can be the same or different claim 1 , from 3 to 10 and wherein the number of pores per cm of the foamed layer is 4 to 20.7. The catalyst according to claim 1 , wherein the foamed layer is formed of foamed alumina. This application is a continuation of U.S. patent application Ser. No. 12/640,266, filed Dec. 17, 2009, the entire content and disclosure of which is incorporated herein by reference.The present invention relates to an ammonia oxidation catalyst unit formed of a pair of honeycomb-type blocks comprising an ammonia oxidation catalyst and having interplaced between them a layer of foamed material.For many years, the ...

DEVICE AND METHOD FOR PROCESSING CEMENT KILN COMBUSTION EXHAUST GAS

A combustion exhaust gas processing device comprises: a dust collector collecting dust in a cement kiln combustion exhaust gas; a wet dust collector as a catalyst-poisoning-substance stripper removing a catalyst-poisoning substance from a combustion exhaust gas which passed the dust collector, preheaters heating beforehand a combustion exhaust gas which passed the wet dust collector; and a catalyst device from which NOx, a persistent organic pollutant, etc. in the preheated combustion exhaust gas, are removed. A titanium-vanadium catalyst etc. as an oxide catalyst is used upstream of the catalyst device, and a platinum catalyst etc. as a noble-metal catalyst downstream of the catalyst device. The temperature of the combustion exhaust gas after the catalyst-poisoning substance is removed is increased up to 140° C. or more with the preheaters to prevent decline in denitration efficiency of and the decomposition efficiency of a volatile organic compound. 1. A device for processing cement kiln combustion exhaust gas comprising:a dust collector configured to collect dust in cement kiln combustion exhaust gas;a catalyst-poisoning-substance stripper configured to remove a catalyst-poisoning substance and mercury from the cement kiln combustion exhaust gas that passed said dust collector by adding sodium hypochlorite to said cement kiln combustion exhaust gas;a preheater configured to heat beforehand the cement kiln combustion exhaust gas that passed said catalyst-poisoning-substance stripper;a catalyst device configured to remove at least one member selected from the group consisting of a volatile organic compound, carbon monoxide, a persistent organic pollutant, hydrocarbon and an offensive odor substance in the cement kiln combustion exhaust gas preheated by said preheater; anda mercury adsorbing tower which adsorbs mercury in fluid exhausted from the catalyst-poisoning substance stripper, the mercury adsorbing tower producing wastewater, wherein a portion of the ...

SILICON CARBIDE MATERIAL, HONEYCOMB STRUCTURE, AND ELECTRIC HEATING TYPE CATALYST CARRIER

A silicon carbide material according to the present invention includes a substrate containing, as a main component, silicon carbide or containing, as main components, silicon carbide and metallic silicon, and a film covering at least a portion of the surface of the substrate. The film contains, as a main component, a phase including at least four elements: lithium (Li), aluminum (Al), silicon (Si), and oxygen (O). One example of such a silicon carbide material includes a substrate having a structure in which silicon carbide particles are bonded by metallic silicon, and a lithium aluminosilicate film covering at least a portion of the surface of the silicon carbide particles. Such a silicon carbide material can be used for a DPF, an electric heating type catalytic converter, or the like. 1. A silicon carbide material , including:a substrate containing, as a main component, silicon carbide or containing, as main components, silicon carbide and metallic silicon, anda film covering at least a portion of the surface of the substrate,wherein the film contains, as a main component, a phase including at least four elements: lithium (Li), aluminum (Al), silicon (Si), and oxygen (O).2. The silicon carbide material according to claim 1 , wherein the film does not contain potassium.3. The silicon carbide material according to claim 1 , wherein the film contains a lithium aluminosilicate.4. The silicon carbide material according to claim 3 , wherein the lithium aluminosilicate is spodumene.5. The silicon carbide material according to claim 1 , wherein the substrate has a structure in which silicon carbide particles are bonded by metallic silicon.6. The silicon carbide material according to claim 1 , wherein the substrate has a porosity of 20% to 70%.7. The silicon carbide material according to claim 1 , wherein the film has the maximum thickness of 2 to 102 μm.8. The silicon carbide material according to claim 1 , wherein the film has the film weight ratio of 4.1% to 58.3% by ...

Hydrocarbon trap having improved adsorption capacity

A hydrocarbon trap is provided for reducing cold-start hydrocarbon emissions. The trap is formed by extruding from about 60 to 80% by weight zeolite and from about 20 to 40% by weight of a binder to form an extruded zeolite monolith. A three-way catalyst and an oxygen storage capacity material may also be included in the trap. The hydrocarbon trap contains from about 5.0 to 8.0 g/in. 3 zeolite, which provides increased hydrocarbon retention. The hydrocarbon trap may be positioned in the exhaust gas passage of a vehicle such that hydrocarbons are adsorbed on the trap and stored until the monolith reaches a sufficient temperature for catalyst activation.

HONEYCOMB CATALYST BODY

The honeycomb catalyst body includes a honeycomb structure having porous partition walls, outflow side plugged portions, inflow side plugged portions, and catalyst layers formed on the surfaces of the partition walls on the side of the outflow cells, the cells are formed so that an open area of each outflow cell is larger than an open area of each inflow cell, a porosity of the partition walls of the honeycomb structure is from 25 to 55%, and in a cross section parallel to the extending direction of the cells, a total area of the catalyst layers formed on the surfaces of the pores in the partition walls is 5% or less of a total area of the pores in the partition walls. 1. A honeycomb catalyst body comprising:a honeycomb structure having porous partition walls with which a plurality of cells extending from an inflow side end surface to an outflow side end surface are defined and formed to become through channels of an exhaust gas;outflow side plugged portions arranged in open frontal areas of the predetermined cells in the outflow side end surface, to form the inflow cells which are open in the inflow side end surface and are closed in the outflow side end surface;inflow side plugged portions arranged in open frontal areas of the remaining cells in the inflow side end surface, to form the outflow cells which are open in the outflow side end surface and are closed in the inflow side end surface; andporous catalyst layers formed on the surfaces of the partition walls on the side of the outflow cells, and having a catalyst to purify the exhaust gas,wherein in the honeycomb structure, the inflow cells and the outflow cells are alternately arranged via the partition walls, and the plurality of cells are formed so that an open area of each of the outflow cells in a cross section of the outflow cell which is vertical to an extending direction of the cells is larger than an open area of each of the inflow cells in a cross section of the inflow cell which is vertical to the ...

CATALYTIC CONVERTER APPARATUS

A catalytic converter apparatus for use in an exhaust system of an internal combustion engine includes a housing having a gas inlet and a gas outlet, and at least one catalytic substrate element disposed in the housing. The at least one substrate element is divided into a plurality of zones or sections, the zones at least partially separated from one another to inhibit heat flow. The zones can be at least partially separated with walls. The walls can include insulating material for reducing the mobility of heat radially outwardly. Each of the zones defines a generally separate flow passage connecting the inlet and outlet in fluid communication. The apparatus can heat more rapidly from a cold start compared with conventional catalytic converters. 2. The apparatus of claim 1 , wherein the at least one wall comprises cementitious insulating material.3. The apparatus of claim 2 , wherein thickness of the insulating material between the zones is varied.4. The apparatus of claim 1 , wherein the insulating material has a thickness between the zones of less than 10 mm.5. The apparatus of claim 1 , wherein the insulating material comprises ceramic material.6. The apparatus of claim 1 , wherein the at least one wall separates the zones along substantially an entire length of the zones in a direction extending from the inlet to the outlet.7. The apparatus of claim 1 , wherein the zones comprise a central zone and at least one radial zone.8. The apparatus of claim 7 , wherein the at least one wall separating the central substrate zone from the at least one radial zone comprises at least one connecting portion.9. The apparatus of claim 1 , wherein the at least one substrate element substantially fills the housing in a radial dimension perpendicular to a direction of gas flow extending from the inlet to the outlet.10. The apparatus of claim 1 , wherein the zones are arranged generally in parallel in a direction of gas flow extending from the inlet to the outlet.11. The apparatus ...

Exhaust Gas Cleaning Component For Cleaning The Exhaust Gases Of An Internal Combustion Engine

An exhaust gas cleaning component, having a housing with an inflow port and an outflow port, a first honeycomb structure in the housing with a casing, the casing having an outer surface over which exhaust gas can flow, and also having an applicator device by which an exhaust gas cleaning additive can be applied to the outer surface of the casing. 19.-. (canceled)10. An exhaust gas cleaning component , comprising:a housing with an inflow port and an outflow port;a first honeycomb body arranged in the housing;a shell of the first honeycomb body having an outer surface over which exhaust gas can flow within the housing; anda feed device configured to feed an exhaust gas cleaning additive onto the outer surface of the shell.11. The exhaust gas cleaning component as claimed in claim 10 , further comprising:at least one bypass duct formed between the outer surface of the shell and the housing through which duct a partial exhaust gas flow of an exhaust gas flow flowing from the inflow port to the outflow port can bypass the first honeycomb body,wherein the feed device is arranged at the at least one bypass duct and configured so that the exhaust gas cleaning additive is fed into the at least one bypass duct.12. The exhaust gas cleaning component as claimed in claim 11 , further comprising:a second honeycomb body, through which the partial exhaust gas flow flowing through the at least one bypass duct flows, is arranged in the at least one bypass duct upstream of the feed device in an exhaust gas flow direction.13. The exhaust gas cleaning component as claimed in claim 11 , further comprising:a heater arranged in the at least one bypass duct upstream of the feed device in an exhaust gas flow direction and configured to heat the partial exhaust gas flow flowing through the at least one bypass duct.14. The exhaust gas cleaning component as claimed in claim 11 , further comprising:a surface heating system arranged at an impact region of the outer surface of the shell at which ...

HONEYCOMB STRUCTURAL BODY

In a cross section, perpendicular to an axial direction of a honeycomb structural body having partition walls and cells, a plurality of sections having a different cell density is formed from a central area toward an outer peripheral area, and a partition wall is formed between the sections adjacent to each other. The boundary section has boundary partition walls and plural boundary cells having a polygonal shape different in shape from the cells in the sections formed adjacent to the boundary section. The partition walls in the sections adjacent to the boundary section are connected by the boundary partition walls. A part of the boundary cell is surrounded by at least the boundary partition walls. A relationship of φ1/φ2≧1.25 is satisfied, where φ1 indicates an average hydraulic diameter of the boundary cells and φ2 indicates an average hydraulic diameter of the cells. 1. A honeycomb structural body formed as a monolithic mold comprising partition walls arranged in a lattice shape and a plurality of cells surrounded by the partition walls , whereinthe honeycomb structural body comprises a plurality of cell density sections having a different cell density formed in a radial direction from a central side to an outer peripheral side,{'b': '2', 'a boundary section is formed between the cell density sections () which are immediately adjacent,'}the boundary section comprises boundary partition walls and a plurality of boundary cells having a polygonal shape,the boundary partition walls connect the partition walls in the cell density sections formed adjacent to the boundary section,the boundary cells having a polygonal shape are different in shape from the cells,at least a part of the boundary cell is surrounded by the boundary partition walls, and {'br': None, 'φ1/φ2≧1.25,'}, 'the honeycomb structural body satisfies a relationship of'}where φ1 indicates an average hydraulic diameter of the boundary cells formed in the boundary section, and φ2 indicates an average ...

HONEYCOMB BODIES HAVING AN ARRAY OF THROUGH CHANNELS WITH A RANGE OF HYDRAULIC DIAMETERS

A ceramic honeycomb body, suitable for use in exhaust gas processing, includes a honeycomb structure having a plurality of through-channels, a first portion of the plurality of through-channels have a first hydraulic diameter dh, a second portion of the plurality of through-channels have a second hydraulic diameter that is smaller than the first hydraulic diameter dh, the first hydraulic diameter dh is equal to or greater than 1.1 mm, and the first and second portions of through-channels, taken together, have a geometric surface area GSA greater than 2.9 mm. Diesel oxidation catalysts and methods of soot removal are also provided, as are other aspects. 1. A honeycomb body , comprising: {'sup': '−1', 'a plurality of channels disposed in parallel to each other in an axial direction, wherein a first portion of the plurality of channels have a dh≥1.1 mm, a second portion of the plurality of channels have a dh<1.1 mm, and the plurality of channels comprise GSA≥2.9 mm, wherein dh is hydraulic diameter and GSA is a geometric surface area.'}, 'a honeycomb structure comprising a plurality of unit channel structures disposed in a repeating pattern, each unit channel structure comprising2. The honeycomb body of claim 1 , wherein the plurality of channels extend from an inlet face to an outlet face.3. The honeycomb body of claim 1 , wherein every channel of the plurality of channels is a flow-through channel.4. The honeycomb body of claim 1 , wherein every channel of the plurality of channels is devoid of plugging.5. The honeycomb body of claim 1 , wherein at least a portion of the plurality of channels have a catalytic coating disposed thereon.6. The honeycomb body of claim 1 , wherein the honeycomb body comprises:{'sup': '2', 'CD≥62.0 cm(400 cpsi);'}{'sup': 2', '2, 'the first portion of the plurality of channels comprise 6.2 channels/ cm(40 cpsi)≤CD≤46.5 channels/ cm(300 cpsi); and'}3%≤CR≤40% wherein CR is a channel ratio of a total cross-sectional area of the first portion ...

ELECTRO-CATALYTIC HONEYCOMB FOR EXHAUST EMISSIONS CONTROL AND MANUFACTURING METHOD THEREOF

An electro-catalytic honeycomb for exhaust emissions control and manufacturing method thereof firstly provides a honeycomb structural body comprising a backbone, a solid-oxide layer, a cathode layer and an inner annular layer. The backbone is provided with an anode and gas channels. The anode is provided with an outer surface and an inner surface inside the gas channels. The solid-oxide layer is formed on the inner surface. The cathode layer is formed on the solid-oxide layer. The inner annular layer is allowed for encapsulating an annular end edge of the outer surface. Subsequently, a sealing body is provided over the inner annular layer. Then, the anode is reduced to a reducing environment. Finally, an encapsulation is provided over the honeycomb structural body to seal the outer surface and a sealing membrane of the sealing body is removed for passing a lean-burn exhaust through the gas channels. 1. A manufacturing method of an electro-catalytic honeycomb for exhaust emissions control , comprising the steps of:step 1: providing a honeycomb structural body, the honeycomb structural body including a backbone, a solid-oxide layer, a cathode layer and an inner annular layer, the backbone having an anode and a plurality of gas channels running through the anode, the anode being made of a first porous material, as well as the anode having an outer surface and an inner surface situated inside the gas channels, the solid-oxide layer being formed of a first dense structure and formed on the inner surface, as well as having a tube wall facing the gas channels, the cathode layer being made of a second porous material and adhered to the tube wall, the inner annular layer being formed of a second dense structure and encapsulating an annular end edge of the outer surface;step 2: covering the inner annular layer by a sealing body in such a way that the gas channels of the honeycomb structural body are formed as an enclosed chamber, the sealing body including a hollow outer ring ...

Honeycomb bodies having an array of channels with different hydraulic diameters and methods of making the same

A honeycomb body comprises a matrix of intersecting porous walls forming channels. Plugs are disposed in a percentage of the channels having the second hydraulic diameter, wherein the percentage of the channels of the second diameter having a plug is less than or equal to 15%. In some embodiments, some of the channels have a first hydraulic diameter and others have a second hydraulic diameter that is smaller than the first hydraulic diameter, and may be unplugged for plugged. The porous walls can further comprise a transverse thickness of the walls Tw less than or equal to 0.20 mm, a channel density CD greater than or equal to 62 channels per cm2, an average bulk porosity % P greater than or equal to 50%, and a median pore diameter d50 ranging from between 4.0 μm and 30.0 μm.

CATALYZED SCR FILTER AND EMISSION TREATMENT SYSTEM

Provided is a catalyst article for simultaneously remediating the nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons present in diesel engine exhaust streams. The catalyst article has a soot filter coated with a material effective in the Selective Catalytic Reduction (SCR) of NOx by a reductant, e.g., ammonia. 1. A catalyst article consisting essentially of a wall flow monolith and a catalytic material , wherein the wall flow monolith has a plurality of longitudinally extending passages fatined by longitudinally extending walls bounding and defining said passages , wherein the passages comprise inlet passages having an open inlet end and a closed outlet end , and outlet passages having a closed inlet end and an open outlet end , the wall flow monolith has a porosity of from 50% to 60% and an average pore size of from 10 to 25 microns , and the wall flow monolith contains the catalytic material;{'sup': '3', 'wherein the catalytic material comprises an SCR catalyst composition including a slurry-loaded washcoat of a zeolite and base metal selected from one or more of a copper and iron component, the washcoat permeating the walls at a loading up to 2.4 g/in, the wall flow monolith having integrated, NOx and particulate removal efficiency in which presence of the catalytic material in the wall flow monolith catalyzes the oxidation of soot.'}2. The catalyst article of claim 1 , wherein the SCR catalyst composition permeates the walls of the monolith at a concentration of at least 1.3 g/in.3. The catalyst article of claim 2 , wherein there is from 1.6 to 2.4 g/inof SCR catalyst composition disposed on the wall flow monolith.4. The catalyst article of claim 1 , wherein the SCR catalyst composition is effective to catalyze the reduction of NOx at a temperature below about 600° C. and is able to aid in regeneration of the wall flow monolith by lowering the temperature at which soot captured by the wall flow monolith is combusted.5. The catalyst article of ...

Apparatus and method for gaseous emissions treatment using front end induction heating

An assembly for treating gaseous emissions includes a substrate body having a front and a rear and cells for the passage of emissions gas. Inductance heating metal is located in the substrate body and an induction heating coil is mounted adjacent the substrate body for generating a varying electromagnetic field for inductively heating the metal and thereby heating the substrate body. A greater concentration of the metal is located near the front of the substrate body than near the rear. 1. An assembly for treating gaseous emissions comprising a substrate body having a front end , a rear end , a plurality of cells for the passage of emissions gas , inductance heating metal located in the substrate body , and an induction heating coil mounted adjacent the substrate body for generating a varying electromagnetic field , thereby inductively to heat the metal and thereby to heat the substrate body , wherein a greater concentration of the metal is located near the front end of the substrate body than near the rear end of the substrate body.2. The assembly of claim 1 , wherein the inductance heating metal is respective lengths of metal wire located in each of a first set of the plurality of cells3. The assembly of claim 1 , wherein claim 1 , the inductance heating metal is confined to a front part of the substrate body and the induction heating coil is mounted adjacent only a front part of the substrate body.4. The assembly of claim 2 , wherein at least some of the lengths of metal wire are wire segments shorter than the full length of the substrate body.5. The assembly of claim 2 , wherein end portions of the lengths of wire project from a front face of the substrate body at the front end.6. The assembly of claim 5 , wherein the induction heating coil extends beyond said front face so that a part thereof is mounted adjacent the projecting wire end portions.7. The assembly of claim 5 , wherein the projecting wire end portions taper towards the ends of the wires.8. The ...

CATALYST FOR METAL MERCURY OXIDATION REACTIONS AND NITROGEN OXIDE REDUCTION REACTIONS, AND EXHAUST GAS PURIFICATION METHOD

A catalyst for oxidation reaction of metallic mercury and reduction reaction of nitrogen oxide, comprising an oxide of titanium, an oxide of molybdenum, an oxide of vanadium, an oxide of phosphorus and gypsum is obtained by kneading titanium dioxide, ammonium molybdate, ammonium metavanadate, phosphoric acid, gypsum dihydrate and water using a kneader to obtain a paste, applying the paste to a metal lath substrate, and then drying and calcining the resultant. 1. A catalyst for oxidation reaction of metallic mercury and reduction reaction of nitrogen oxide , comprising:an oxide of titanium,an oxide of molybdenum and/or tungsten,an oxide of vanadium,an oxide of phosphorus, andgypsum.2. The catalyst according to claim 1 , wherein a ratio of the dry-based mass of gypsum dihydrate to the mass of the oxide of titanium is 1/99 to 40/60.3. A method for exhaust gas purification claim 1 , comprising bringing an exhaust gas containing metallic mercury claim 1 , nitrogen oxide and sulfur dioxide in contact with a catalyst comprising an oxide of titanium claim 1 , an oxide of molybdenum and/or tungsten claim 1 , an oxide of vanadium claim 1 , an oxide of phosphorus and gypsum to oxidize the metallic mercury and reduce the nitrogen oxide. The present invention relates to a catalyst for oxidation reaction of metallic mercury and reduction reaction of nitrogen oxide, and a method for exhaust gas purification. More specifically, the present invention relates to a catalyst that is capable of accelerating gas phase oxidation reaction of metallic mercury and gas phase reduction reaction of nitrogen oxide, and is also capable of suppressing gas phase oxidation reaction of sulfur dioxide, as well as a method for purifying exhaust gas, which comprises oxidizing metallic mercury and reducing nitrogen oxide.There is concern that metallic mercury contained in flue gas discharged from power stations, factories, automobiles and the like affects the environment. Hence, removal of metallic ...

Apparatus and method for gaseous emissions treatment with enhanced catalyst distribution

An assembly for treating gaseous emissions includes a substrate body having cells for the passages of emissions gas. Lengths of metal wire are located in selected ones of the cells and an induction heating coil is mounted adjacent the substrate body for generating a varying electromagnetic field for inductive heating of the assembly including gaseous emissions passing along the cells. Within the cells, parts of the cell walls and parts of the wire surfaces are exposed to the passage of the gaseous emissions and both the cell wall parts and the wire surface parts have pollution treating catalyst at their surfaces. 1. An assembly for treating gaseous emissions comprises a substrate body having a plurality of cells for the passage of emissions gas , respective lengths of metal wire located in each of a first set of the plurality of cells , and an induction heating coil mounted adjacent the substrate body for generating a varying electromagnetic field , thereby inductively to heat the lengths of wire and thereby to heat the substrate body , at least one of the wires covering a part of interior walls of the cell in which the wire is contained and leaving another part of the walls of the cell exposed to passage of exhaust gas along the cell , a part of the at least one wire having at least part of a surface thereof exposed to passage of exhaust gas along the cell and having a pollution treating catalyst at the exposed surface part.2. The assembly as claimed in claim 1 , wherein such exposed wall part bears a layer of pollution treating catalyst.3. The assembly as claimed in claim 2 , the pollution treating catalyst at the exposed surface part being in an applied layer.4. The assembly as claimed in claim 2 , the pollution treating catalyst at the exposed surface part being a catalyst metal alloyed with the metal of the wire.5. The assembly as claimed in claim 1 , wherein the at least one metal wire has one of a hollow cross section and an open cross-sectional shape claim 1 ...

Electric Exhaust-Gas Catalytic Converter, Vehicle And Method For Operating An Electric Exhaust-Gas Catalytic Converter

The disclosure relates to an electric exhaust-gas catalytic converter that has a heating device. The heading device includes a first heating element and a second heating element that are arranged separately from one another upstream and downstream of an active catalysis region of the electric exhaust-gas catalytic converter. The disclosure also relates to a vehicle which includes the electric exhaust-gas catalytic converter and to a method for operating the electric exhaust-gas catalytic converter.

CATALYTIC CONVERTERS HAVING NON-LINEAR FLOW CHANNELS

Disclosed is a honeycomb catalyst substrate core having geometrically non-linear flow channels. In an embodiment, the honeycomb catalyst substrate core includes helical flow channels. In another embodiment, the honeycomb catalyst substrate core includes sinusoidal flow channels. In yet another embodiment, the honeycomb catalyst substrate core includes helical plus sinusoidal flow channels. The honeycomb catalyst substrate core comprises a plurality of parallel non-linear flow channels formed along a longitudinal axis of symmetry of the catalyst substrate core, each non-linear flow channel configured such that eddies occurs during engine exhaust gas flow. Also disclosed is a method for manufacturing a ceramic honeycomb having non-linear flow channels, comprising the steps extrusion soft ceramic material through a die whilst the die moves through six degrees of freedom along its axis of symmetry. Disclosure includes a method for manufacturing a ceramic honeycomb having non-linear flow channels using three-dimensional printing. 1. A honeycomb catalyst substrate core , the honeycomb catalyst substrate core comprising:(a) a plurality of flow channels formed along a longitudinal axis of symmetry of a catalyst substrate core of a catalyst substrate, each flow channel configured into a sinusoidal substrate core adapted to increase heat-transfer and/or mass-transfer performance through formation of stable vortical structures, exclusively operative under strictly non-turbulent flow conditions, which create secondary flow, lateral to longitudinal channel flow, and enhance interactions with channel walls;(b) a washcoat within which a catalyst is embedded, said washcoat being applied over said catalyst substrate;(c) a mat cover that forms a skin over a honeycomb formed by said plurality of flow channels; and(d) a housing that forms a protective outer shell over said honeycomb, said housing having an inlet and an outlet on opposite ends of said honeycomb, said inlet and said ...

HONEYCOMB CERAMIC SUBSTRATES, HONEYCOMB EXTRUSION DIES, AND METHODS OF MAKING HONEYCOMB CERAMIC SUBSTRATES

A honeycomb ceramic substrate, a method of making thereof, and a honeycomb extrusion die configured to extrude a honeycomb ceramic substrate from a batch of ceramic or ceramic-forming material is provided. The substrate may include a lattice of intersecting walls defining a honeycomb network of flow channels extending between an inlet end and an outlet end of the honeycomb substrate. Each flow channel may be defined by a plurality of channel walls of the intersecting walls with at least two of the plurality of channel walls including concave inner surfaces facing a center of the corresponding flow channel from central portions of the concave inner surfaces to concave corner portions facing the center of the corresponding flow channel. 1. A honeycomb extrusion die configured to extrude a honeycomb ceramic substrate from a batch of ceramic or ceramic-forming material , the honeycomb extrusion die comprising:a plurality of die pins arranged in a matrix and spaced from one another to define a lattice of intersecting slots defined between the die pins at an outer face of the die pins, wherein an outer periphery at the outer face of at least one of the die pins includes a plurality of sides joined by corresponding corner portions with at least two convex sides facing away from a center of the corresponding die pin, and wherein at least one corner portion is convex facing away from the center of the corresponding die pin.2. The honeycomb extrusion die of claim 1 , wherein (i) two adjacent die pins of the plurality of die pins comprise facing sides that at least partially define a wall slot and (ii) each facing side is convex facing away from a center of the corresponding adjacent die pin.3. The honeycomb extrusion die of claim 1 , wherein (i) at least one wall slot is defined between facing sides of two adjacent die pins of the plurality of die pins claim 1 , (ii) each of the facing sides are convex facing each other from central portions thereof to corresponding corner ...

STRUCTURED MONOLITHIC CATALYST FOR REDUCING NOX EMISSION IN FLUE GAS, THE PREPARATION METHOD AND THE USE THEREOF

A structured monolithic catalyst has a structured monolithic carrier and a coating of active components. The coating of active components comprises active metal components and a substrate. The active metal components conclude a first metal element, a second metal element, a third metal element and a fourth metal element. The first metal element includes Fe and Co; the second metal element is at least one selected from the group consisting of the metal elements of the Group IA and/or IIA; the third metal element is at least one selected from the group consisting of the non-noble metal elements of the Groups IB to VIIB; and the fourth metal element is at least one selected from the group consisting of the noble metal elements. 1. A structured monolithic catalyst for reducing NOx emission in flue gas , comprising: a structured monolithic carrier and a coating of active components disposed on inner surface and/or outer surface of the structured monolithic carrier , wherein , based on the total weight of the catalyst , the coating of active components is presented in an amount of about 1-50 wt % , wherein the coating of active components comprises active metal components and a substrate , wherein the active metal components comprise a first metal element , a second metal element , a third metal element and a fourth metal element , wherein the first metal element is selected from the group consisting of the non-noble metal elements of the Group VIII , wherein the first metal element includes Fe and Co , wherein the weight ratio of Fe and Co is 1:(0.05-20) on an oxide basis , wherein the second metal element is at least one selected from the group consisting of the metal elements of the Group IA and/or IIA , wherein the third metal element is at least one selected from the group consisting of the non-noble metal elements of the Groups IB to VIIB , and wherein the fourth metal element is at least one selected from the group consisting of the noble metal elements.2. The ...

Method and apparatus for sulfur removal

Provided is a method for removing hydrogen sulfide from a gas stream. The method includes contacting the gas stream with a reactor that is configured to remove the hydrogen sulfide. The reactor includes at least one nano-sized metal.

SMOKE PROCESSING DEVICE

The present disclosure relates to a smoke processing device for processing smoke, which is generated by an indoor industrial site, a restaurant, or a heating means that applies heat and generates smoke, the device including at least: a smoke purification means comprising a smoke collector equipped with a smoke movement duct, the smoke movement duct comprising a smoke purifier for purifying smoke, which has been collected by the smoke collector, and discharging the purified smoke, the smoke purification means comprising a hot air movement duct for moving the smoke purified and discharged by the smoke purifier; and a heat exchange means installed on the smoke movement duct to promote heat exchange of smoke collected by the smoke collector such that the smoke is converted to high-temperature smoke and is moved to the smoke purifier. 1. A smoke processing device for processing smoke , which is generated by an indoor industrial site , a restaurant , or a heating means that applies heat and generates smoke , comprising:{'b': 11', '12', '14', '12', '11', '11', '13', '14, 'a smoke purification means, including a smoke collector () provided with a smoke movement duct (), through which smoke generated by the indoor industrial site, the restaurant, or the heating means that applies heat and generates smoke can flow, a smoke purifier () provided to the smoke movement duct () of the smoke collector () so as to purify the smoke collected by the smoke collector () and discharge the purified smoke, and a hot air movement duct (), through which the smoke purified and discharged by the smoke purifier () flows; and'}{'b': 20', '12', '11', '14, 'a heat exchange means () installed on the smoke movement duct () of the smoke purification means so as to promote heat exchange of the smoke collected by the smoke collector () such that the smoke is converted into high-temperature smoke and is moved to the smoke purifier ().'}214. The smoke processing device according to claim 1 , wherein a ...

Compound Honeycomb Body, Exhaust Gas Treatment Article, Exhaust System and Methods of Manufacturing Same.

A compound honeycomb body comprising a first honeycomb section having a volume V and a second honeycomb section fluidly connected to the first honeycomb having a volume V is provided. The first honeycomb section comprises a low mass high porosity porous ceramic substrate. The second honeycomb section comprises a standard porous ceramic substrate. Wherein V/V comprises a ratio in a range from about 50/50 to about 10/90. 1. A compound honeycomb body , comprising:{'b': '1', 'claim-text': 'a plurality of porous ceramic channel walls extending axially from opposing first and second end faces defining cell channels therebetween, and an outer peripheral surface extending axially; and', 'a first honeycomb section extending axially a distance L, comprising'}{'b': '2', 'claim-text': 'a plurality of porous ceramic channel walls extending axially from opposing first and second end faces defining cell channels therebetween, and an outer peripheral surface extending axially,', 'a second honeycomb section fluidly connected to the first honeycomb section extending a distance L, comprising'}wherein the thermal mass of the second honeycomb section is greater than the thermal mass of the first honeycomb section, and{'b': 1', '2, 'wherein L/L comprises a ratio in a range from about 50/50 to about 10/90.'}212. The body of claim 1 , wherein L/L comprises a ratio in a range from about 40/60 to about 20/80.3. (canceled)4. (canceled)5. The body of claim 1 , wherein porosity (% P) of the porous ceramic channel walls of the first honeycomb section is greater than or equal to 40% and porosity (% P) of the porous ceramic channel walls of the second honeycomb section is less than 40%.6. The body of claim 1 , wherein porosity (% P) of the porous ceramic channel walls of the first honeycomb section is greater than or equal to 45% and porosity (% P) of the porous ceramic channel walls of the second honeycomb section is less than 45%.7. The body of claim 1 , wherein the first honeycomb section ...

HEATING DEVICE

The objective of the present invention is to reduce the loss in functionality due to the burn-out of micro-coils in a heating device, which uses micro-coils formed of carbon or molecules that include carbon as a principal component for heating a target object located in a space where high-temperature gases flow. The present invention relates to a heating device comprising: a heat producing layer having a micro-coil formed of carbon or molecules that include carbon as a principal component, where the heat producing layer is installed together with the target object located in a target space where high-temperature gases flow; and an electromagnetic (EM)-wave-emitting device that emits EM radiation into the target space. The target object is heated by producing heat in the micro-coil by EM radiation from the EM wave emitting device emitted to the target space. The heating device further comprises a covering layer, which coats the entirety of the heat producing layer. 1. A heating device comprising:a heat producing layer formed of micro-coils made of carbon or molecules that include carbon as a principal component, where the heat producing layer is installed together with the target object located in a target space where high-temperature gases flow; andan EM-wave-emitting device that emits EM radiation in the target space;wherein the target object is heated by producing heat in the micro-coils by the EM radiation from the EM-wave-emitting device emitted to the target space, wherein the heating device further comprisesa covering layer that coats the entirety of the heat producing layer.2. The heating device as claimed in claim 1 , whereinthe target object is a catalyst which purifies the high-temperature gases, andthe catalyst is installed in the covering layer.3. The heating device as claimed in claim 2 , whereinthe micro-coil is not in contact with the catalyst at the boundary of the covering layer and the heat producing layer.4. The heating device as claimed in claim ...

ZEOLITE BLEND CATALYSTS FOR TREATING EXHAUST GAS

Provided is an improved catalyst for treating exhaust gas, particularly for selectively reducing NO, and methods for using the same, wherein the catalyst includes a blend of a transition metal promoted zeolite and an un-promoted zeolite, wherein both zeolites have the same framework type. 1. A catalyst for treating an exhaust gas comprising a blend of a transition metal-promoted first zeolite and a second zeolite primarily in at least one of Hform , NHform , alkali metal form , or alkaline-earth metal form , wherein the first and second zeolites have the same framework structure and the framework structure is selected from CHA , AEI , AFX , LEV , and SFW.2. The catalyst of claim 1 , wherein the first zeolite is exchanged with copper.3. The catalyst of claim 1 , wherein the second zeolite contains calcium.4. The catalyst of claim 1 , wherein the second zeolite is essentially free of transition metals.5. The catalyst of claim 1 , wherein the second zeolite is essentially free of non-framework metals.6. The catalyst of claim 1 , wherein the first zeolite and the second zeolite have different silica-to-alumina ratios.7. The catalyst of claim 1 , wherein the first zeolite has lower silica-to-alumina ratio relative to the second zeolite.8. The catalyst of claim 1 , wherein the first zeolite and the second zeolite independently have an silica-to-alumina ratio of about 10 to about 35.9. The catalyst of claim 1 , wherein the first and second zeolites have the same silica-to-alumina ratio.10. The catalyst of claim 1 , wherein the second and first zeolites are present in a relative ratio of about 0.1 to about 1.11. The catalyst of claim 1 , wherein the first and second zeolites have a CHA framework.12. The catalyst of claim 1 , wherein the first and second zeolites have an AEI framework.13. A catalytic article for treating an exhaust gas comprising a porous honeycomb substrate containing a catalyst according to .14. A method for treating an exhaust gas comprising contacting an ...

A METHOD FOR REMOVING NITROGEN OXIDES FROM A GAS USING AN IRON EXCHANGED ZEOLITE CATALYST

A method for removing nitrogen oxides NOx from a gaseous current, comprising the steps of: passing the gaseous current through a de-NOx catalytic bed with iron exchanged zeolite as a catalyst with the addition of ammonia as a reducing agent, wherein the molar ratio of NH3 over NOx is greater than 1.33. 111-. (canceled)12. A method for removing nitrogen oxides NOx from a gaseous current , the method comprising:passing the gaseous current through a de-NOx catalytic bed including a catalyst that is an iron exchanged zeolite, with an addition of ammonia as a reducing agent;wherein a molar ratio of NH3 over NOx in the gas admitted to said de-NOx catalytic bed is 1.4 to 2;wherein said de-NOx catalytic bed is operated at a temperature in a range of 420° C. to 435° C.; and{'sup': −1', '−1, 'wherein a space velocity in said de-NOx catalytic bed is 10000 hto 14000 h.'}13. The method according to claim 12 , wherein said molar ratio of NH3 over NOx is 1.4 to 1.6.14. The method according to claim 13 , wherein said molar ratio of NH3 over NOx is 1.5.15. The method according to claim 12 , wherein claim 12 , after the passage though said de-NOx catalytic bed claim 12 , a residual amount of NOx in the gas is not greater than 100 ppm.16. The method according to claim 12 , wherein claim 12 , after the passage though said de-NOx catalytic bed claim 12 , a residual amount of NOx in the gas is not greater than 50 ppm.17. The method according to claim 12 , wherein claim 12 , after the passage though said de-NOx catalytic bed claim 12 , a residual amount of NOx in the gas is not greater than 25 ppm.18. The method according to claim 12 , wherein the temperature at which said de-NOx catalytic bed is operated is 430° C.19. The method according to claim 12 , wherein the iron exchanged zeolite catalyst includes MFI claim 12 , BEA claim 12 , FER claim 12 , MOR claim 12 , FAU claim 12 , MEL claim 12 , or combinations thereof.20. The method according to claim 12 , wherein the iron exchanged ...

Heating Element

A heating element for heating a component for exhaust gas aftertreatment using ohmic resistance includes: an unheated end region; an intermediate region; and a heated end region. The unheated end region and the heated end region are separated by the intermediate region, and the intermediate region consists of a thermally insulating material configured to minimize heat flow from the heated end region to the unheated end region. 17.-. (canceled)811. A heating element () for heating a component for exhaust gas aftertreatment using ohmic resistance , the heating element () comprising:{'b': '3', 'an unheated end region ();'}{'b': '4', 'an intermediate region (); and'}{'b': '5', 'a heated end region (),'}{'b': 3', '5', '4', '4', '5', '3, 'wherein the unheated end region () and the heated end region () are separated by the intermediate region (), and wherein the intermediate region () consists of a thermally insulating material configured to minimize heat flow from the heated end region () to the unheated end region ().'}91. The heating element () as claimed in claim 8 , wherein the thermally insulating material is a ceramic material.101. The heating element () as claimed in claim 8 , further comprising:{'b': 7', '3', '4', '5, 'a channel guide () arranged through the unheated end region () and the intermediate region () and into the heated end region (), and'}{'b': 6', '7, 'an electric conductor () arranged to pass through the channel guide ().'}111. The heating element () as claimed in claim 8 , wherein the thermally insulating material is also configured so as to be electrically insulating.121514. The heating element () as claimed in claim 8 , wherein heat output from the heated end region () toward the environment takes place exclusively in a radial direction of the heating element () and in an axial direction away from the intermediate region ().132. A component () for exhaust gas aftertreatment comprising:a housing; and{'b': '1', 'claim-ref': {'@idref': 'CLM-00008', ' ...

CATALYZED SCR FILTER AND EMISSION TREATMENT SYSTEM

Provided is a catalyst article for simultaneously remediating the nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons present in diesel engine exhaust streams. The catalyst article has a soot filter coated with a material effective in the Selective Catalytic Reduction (SCR) of NOx by a reductant, e.g., ammonia. 127-. (canceled)28. A method for disposing a selective catalytic reduction (SCR) catalyst composition on a wall flow monolith , wherein the wall flow monolith has a plurality of longitudinally extending passages formed by longitudinally extending walls bounding and defining said passages , wherein the passages comprise inlet passages having an open inlet end and a closed outlet end , and outlet passages having a closed inlet end and an open outlet end , the method comprising:receiving an aqueous slurry comprising the SCR catalyst composition, the SCR catalyst composition comprising a zeolite and a base metal component;immersing the wall flow monolith in the aqueous slurry from a first direction to deposit the SCR catalyst composition on the inlet passages;removing excess aqueous slurry from the inlet passages;immersing the wall flow monolith in the aqueous slurry from a second direction, opposite the first direction, to deposit the SCR catalyst composition on the outlet passages and form a coated wall flow monolith;removing excess aqueous slurry from the outlet passages; and{'sup': '3', 'drying and calcining the coated wall flow monolith to form an integrated soot filter and SCR catalyst, wherein the SCR catalyst composition is present on the coated wall flow monolith at a concentration of at least 1.3 g/in.'}29. The method of claim 28 , wherein the SCR catalyst composition permeates the walls.30. The method of claim 28 , wherein the SCR catalyst composition is present on the coated wall flow monolith at a concentration of 1.6 to 2.4 g/in.31. The method of claim 28 , wherein the calcining step comprises calcining at a temperature in the range ...

HONEYCOMB CATALYST BODY

There is disclosed a honeycomb catalyst body including porous partition walls in which a plurality of cells that become through channels of a fluid are defined and formed, and a plurality of pores are formed, wherein a cell density is from 93 to 186 cells/cm, and onto the partition walls, a catalyst containing the zeolite is loaded in an amount of 100 to 300 g/L, a porosity (A) of the partition walls before the catalyst is loaded thereonto is 50% or more, and a porosity (B) of the partition walls in a state where the catalyst is loaded thereonto is from 0.3 to 0.6 times as much as the porosity (A). 1porous partition walls in which a plurality of cells that become through channels of a fluid are defined and formed, and a plurality of pores are formed,{'sup': '2', 'wherein a cell density is from 93 to 186 cells/cm, and'}onto the partition walls, a catalyst containing a zeolite is loaded in an amount of 100 to 300 g/L, a porosity (A) of the partition walls before the catalyst is loaded thereonto is 50% or more, and a porosity (B) of the partition walls in a state where the catalyst is loaded thereonto is from 0.3 to 0.6 times as much as the porosity (A).. A honeycomb catalyst body comprising: The present application is an application based on JP-2012-259111 filed on Nov. 27, 2012 with the Japanese Patent Office, the entire contents of which are incorporated herein by reference.1. Field of the InventionThe present invention relates to a honeycomb catalyst body for purification of an exhaust gas.2. Background ArtIn an exhaust gas discharged from an internal combustion engine such as a car engine, harmful substances such as carbon monoxide (CO), hydrocarbons (HC) and nitrogen oxides (NO) are included. When these harmful substances are decreased to purify the exhaust gas, a catalytic reaction has broadly been used. In this catalytic reaction, a harmful substance such as carbon monoxide (CO) can be converted to a harmless substance by a simple method of bringing the exhaust ...

INDUCTIVELY HEATABLE CERAMIC BODY, METHOD FOR MANUFACTURING A CERAMIC BODY, EXHAUST GAS PURIFICATION DEVICE AND VEHICLE

The invention relates to a ceramic body which can be designed as a catalyst support and/or particulate filter and which has a plurality of channels and a plurality of elongate metal elements for inductive heating arranged in parallel with the channels, the elongate metal elements being arranged in the walls of the ceramic body. In this way, the free frontal area of the ceramic body is preferably reduced or is at least no more than 5%. The invention also relates to a method for producing the ceramic body, an exhaust gas purification device and a vehicle. 1. A ceramic body , comprising:a plurality of channels arranged in parallel, anda plurality of elongate metal elements for inductive heating arranged in parallel with the channels,wherein the elongate metal elements are arranged in walls of the ceramic body.2. The ceramic body according to claim 1 , wherein the metal elements are embedded in the walls so as to be adjacent to a channel and/or between two channels and/or four channels.3. The ceramic body according to claim 1 , wherein more than 50% claim 1 , of the surface of the metal elements is in contact with the surrounding ceramic.4. The ceramic body according to claim 1 , wherein the coefficient of thermal expansion of the metal elements deviates from that of the surrounding ceramic by less than 30%.5. The ceramic body according to claim 1 , wherein the metal elements have a diameter of 0.2-1.0 mm.6. The ceramic body according to claim 1 , wherein the lengths of the individual metal elements correspond to 0.8 to 0.95 times the length of the ceramic support claim 1 , and wherein it is possible for several shorter metal elements to be added together to form one metal element.7. The ceramic body according to claim 1 , wherein a frontal area of the ceramic body which is blocked by the metal elements being embedded is no more than 5%.8. The ceramic body according to claim 1 , wherein the walls of the ceramic body have a greater thickness in the region of metal ...

HONEYCOMB CATALYST BODY

A honeycomb catalyst body capable of containing in a limited space, having high mechanical strength, less pressure loss, and suitable purification performance is provided, and it includes a plugged honeycomb structure having porous partition walls defining cells, plugged portions, and porous projecting portions projecting so as to extend from the partition walls into the cells and being formed integrally with the partition walls; and catalysts loaded onto the projecting portions, wherein a porosity of the partition walls is 40 to 70%, thicknesses of the projecting portions is from 30 to 140% of thicknesses of the partition wall, an amount of the catalyst loaded onto the partition walls thereof is smaller than an amount of the catalyst loaded onto the projecting portions, one catalyst loaded onto projecting portions is a selective reduction catalyst, and another catalyst loaded onto projecting portions is an ammonia slip preventing catalyst. 1. A honeycomb catalyst body comprising:a plugged honeycomb structure having porous partition walls defining a plurality of cells extending from an inflow side end face to an outflow side end face to become through channels of a fluid, inflow side plugged portions provided at outflow side ends of the predetermined cells, outflow side plugged portions provided at inflow side ends of the remaining cells, and porous projecting portions projecting so as to extend from the partition walls into inflow cells being the cells provided with the outflow side plugged portions and into outflow cells being the cells provided with the inflow side plugged portions and being formed integrally with the partition walls; andcatalysts loaded onto the projecting portions of the plugged honeycomb structure,wherein a porosity of each of the partition walls of the plugged honeycomb structure is from 40% to 70%,a thickness of each of the projecting portions is from 30 to 140% of a thickness of each of the partition walls,an amount of the catalyst loaded ...

HONEYCOMB CATALYST BODY

A honeycomb catalyst body includes a plugged honeycomb structure having porous partition walls, inflow side plugged portions, outflow side plugged portions, and porous projecting portions which project so as to extend from the partition walls into the cells and are formed integrally with the partition walls; and catalyst loaded onto the projecting portions of the plugged honeycomb structure. A porosity of the partition walls of the plugged honeycomb structure is 40 to 70%, a thickness of the projecting portions is from 30 to 140% of a thickness of the partition walls, and an amount of a catalyst loaded onto pore surfaces of the partition walls of the plugged honeycomb structure is smaller than an amount of the catalyst loaded onto the projecting portions. The catalyst loaded onto projecting portions is a three-way catalyst, and the catalyst loaded onto projecting portions is a selective reduction catalyst. 1. A honeycomb catalyst body comprising:a plugged honeycomb structure having porous partition walls which define and form a plurality of cells extending from an inflow side end surface to an outflow side end surface to become through channels of a fluid, inflow side plugged portions provided at outflow side ends of the predetermined cells, outflow side plugged portions provided at outflow side ends of the remaining cells, and porous projecting portions which project so as to extend from the partition walls into inflow cells, that are defined as the cells provided with the outflow side plugged portions, and into outflow cells, that are defined as the cells provided with the inflow side plugged portions, and which are formed integrally with the partition walls; anda catalyst loaded onto the projecting portions of the plugged honeycomb structure,wherein a porosity of the partition walls of the plugged honeycomb structure is from 40 to 70%, a thickness of the projecting portions is from 30 to 140% of a thickness of the partition walls,an amount of a catalyst loaded ...

HONEYCOMB CATALYST BODY

A honeycomb catalyst body having high mechanical strength, less pressure loss, and suitable purification performance is provided, and includes a plugged honeycomb structure having porous partition walls defining cells extending from one end face to another end face, inflow side plugged portions provided at one ends of the predetermined cells, outflow side plugged portions provided at another ends of the remaining cells, and porous projecting portions projecting so as to extend from the partition walls into the cells and being formed integrally with the partition walls; and a catalyst loaded onto the projecting portions of the plugged honeycomb structure, wherein porosities of the partition walls are 40% or more and smaller than 60%, thicknesses of the projecting portions are from 30 to 140% of thicknesses of the partition walls, and a catalyst amount loaded onto the partition walls thereof is smaller than a catalyst amount loaded onto the projecting portions. 1. A honeycomb catalyst body comprising:a plugged honeycomb structure having porous partition walls defining a plurality of cells extending from an inflow side end face to an outflow side end face and to become through channels of a fluid, inflow side plugged portions provided at outflow side ends of the predetermined cells, outflow side plugged portions provided at inflow side ends of the remaining cells, and porous projecting portions projecting so as to extend from the partition walls into the cells and being formed integrally with the partition walls; anda catalyst loaded onto the projecting portions of the plugged honeycomb structure,wherein a porosity of each of the partition walls of the plugged honeycomb structure is 40% or more and smaller than 60%,a thickness of each of the projecting portions is from 30 to 140% of a thickness of each of the partition walls,an amount of the catalyst loaded onto the partition walls in a cross section perpendicular to an extending direction of the cells is 40% or less ...

Measuring apparatus having a device for generating clean air

A device ( 1 ) for generating clean air in a measuring apparatus, comprising: a duct ( 2 ) having an inlet and an outlet for the passage of an air flow to be cleaned; a platinum wire ( 3 ), positioned inside the duct ( 2 ), for intercepting the air flow to be cleaned, the platinum wire ( 3 ) is inserted in an electrical circuit ( 17 ) connectable to an electricity supply ( 15 ) to be operatively crossed by an electrical current.

METAL SUBSTRATE FOR CATALYTIC CONVERTER AND CATALYST CARRIER

A metal substrate for catalytic converter for purifying an exhaust gas includes a honeycomb core with metal flat foil and corrugated foil stacked in layers, and an oxide film having a thickness of 0.1 μm or more and 10 μm or less is formed in a predetermined range including an exposed end surface exposed toward the gas inlet side. The oxide film contains at least a first alumina including α-alumina and a Fe oxide. The α-alumina contains α-alumina with solid-solved Fe and α-alumina with no solid-solved Fe. In the oxide film, the content of the first alumina is 30% by mass or more and 99.5% by mass or less, the content of the Fe oxide is 0.5% by mass or more and 40% by mass or less, and the content of Fe is more than 7% by mass and 35% by mass or less. 1. A metal substrate for catalytic converter for purifying an exhaust gas , comprising a honeycomb core with metal flat foil and corrugated foil stacked in layers , whereinan oxide film having a thickness of 0.1 μm or more and 10 μm or less is formed in a predetermined range including an exposed end in a comprising α-alumina and a Fe oxide;the α-alumina contains α-alumina with solid-solved Fe and α-alumina with no solid-solved Fe;in the oxide film, a content of the first alumina is 30% by mass or more and 99.5% by mass or less, a content of the Fe oxide is 0.5% by mass or more and 40% by mass or less, and a content of Fe is more than 7% by mass and 35% by mass or less; andthe predetermined range is at least 2 mm from the exposed end surface in a direction in which a gas flows.2. The metal substrate for catalytic converter according to claim 1 , whereinthe oxide film further contains at least one type of a second alumina and a Cr oxide, andthe second alumina comprises at least one or more types of γ, θ, χ, δ, η, and κ aluminas.3. The metal substrate for catalytic converter according to claim 1 , wherein claim 1 , when T (μm) represents a thickness of the oxide film and G (% by mass) represents the content of Fe in the ...

HONEYCOMB STRUCTURE

In a cross section of a honeycomb structure body, shape of the cells is polygonal, and the honeycomb structure body is constituted so that thickness of partition walls in circumferential region is larger than in central region. In the cross section, when among the cells arranged on a first line segment passing the center of gravity and extending in a direction perpendicular to the partition walls each constituting one side of the cells, cell pitch of the respective five or less cells each arranged on the first line segment toward each of the central region side and the circumferential region side from boundary between the central region and the circumferential region has a size of 70% or more and 95% or less to cell pitch in the extending direction of the first line segment of the cells in the central region of the honeycomb structure. 1. A honeycomb structure comprising:a tubular honeycomb structure body having porous partition walls to define a plurality of cells extending from a first end face to a second end face,wherein in a cross section perpendicular to an extending direction of the cells of the honeycomb structure body, the partition walls are disposed so that a shape of the cells is polygonal, andthe honeycomb structure body is constituted so that a thickness of the partition walls in a circumferential region positioned on an outer side of a central region is larger than a thickness of the partition walls in the central region including a center of gravity of the cross section, andin the cross section of the honeycomb structure body, when one line segment passing the center of gravity of the cross section and extending in a direction perpendicular to the partition walls each constituting one side of each of the polygonal cells is to be a first line segment, for respective five or less cells each arranged on the first line segment toward each of the central region side and the circumferential region side from a boundary between the central region and the ...

CONICAL HONEYCOMB BODY HAVING CHANNELS EXTENDING RADIALLY OUTWARD AT AN ANGLE AND HONEYCOMB BODY ASSEMBLY

A honeycomb body includes wound and/or stacked layers having a geometric center axis, a cavity rotationally symmetrically around the center axis and an outer lateral surface. Each layer extends approximately concentrically around the axis. At least one of the layers is at least partially structured forming channels through which a fluid can flow. The channels extend from the cavity outward to the outer lateral surface at a non-right cone angle to the axis. The channels have a cross-section changing along the channels from inside to outside. At least one structured layer and at least one intermediate layer are alternatingly disposed and helically layered. The structure height of the structured sheet-metal layer forming the channels is substantially constant and channel cross-sectional areas increase from inside to outside. The intermediate layer can be made of simple wires or of specially cut or folded smooth sheet-metal layers. 1. A honeycomb body , comprising:an inside, an outside and a geometric central axis;wound or stacked layers each running concentrically around said central axis and defining an outer lateral surface and a cavity disposed rotationally symmetrically around said central axis;at least one of said layers being at least partially structured to form a multiplicity of channels through which a fluid can flow;said channels running outwardly from said cavity to said outer lateral surface at a non-perpendicular cone angle relative to said central axis;said channels having a channel cross section varying over a course of said channels from said inside to said outside;at least one intermediate layer being disposed in alternation with said at least one structured layer; andsaid at least one intermediate layer and said at least one structured layer being layered on top of one other in a helical manner.2. The honeycomb body according to claim 1 , wherein at least said cavity or said lateral surface is cylindrical.3. The honeycomb body according to claim 1 , ...

HONEYCOMB STRUCTURED BODY

The present invention provides a honeycomb structured body capable of achieving more effective use of a catalyst in partition walls and having excellent exhaust gas conversion performance. The present invention relates to a honeycomb structured body including: a honeycomb fired body in which multiple through-holes are arranged longitudinally in parallel with one another with a partition wall therebetween, wherein the honeycomb fired body contains ceria-zirconia composite oxide particles and alumina particles, the partition wall of the honeycomb fired body contains macropores having a pore size of 2 to 50 μm, and in an electron microscope image of a cross section of the partition wall, the percentage of the area occupied by pores having a pore size of 5 to 15 μm is at least 85% of the total area of the macropores. 1. A honeycomb structured body comprising:a honeycomb fired body in which multiple through-holes are arranged longitudinally in parallel with one another with a partition wall therebetween,wherein the honeycomb fired body contains ceria-zirconia composite oxide particles and alumina particles,the partition wall of the honeycomb fired body contains macropores having a pore size of 2 to 50 μm, andin an electron microscope image of a cross section of the partition wall, the percentage of the area occupied by pores having a pore size of 5 to 15 μm is at least 85% of the total area of the macropores.2. The honeycomb structured body according to claim 1 ,wherein the honeycomb fired body has a porosity of 55 to 75 vol %.3. The honeycomb structured body according to claim 1 ,wherein the alumina particles are 8-phase alumina particles.4. The honeycomb structured body according to claim 1 ,wherein a noble metal is supported on the honeycomb fired body.5. The honeycomb structured body according to claim 2 ,wherein the alumina particles are θ-phase alumina particles.6. The honeycomb structured body according to claim 2 ,wherein a noble metal is supported on the ...

EXHAUST AFTER TREATMENT SYSTEM

An exhaust after treatment system provided in an exhaust passage of an internal combustion engine, comprising an adsorption layer having the function of adsorbing hydrocarbons in the exhaust, a catalyst layer arranged at the same position as the adsorption layer in the direction of flow of exhaust or at the downstream side from the adsorption layer and having an oxidation function of oxidizing the hydrocarbons, and a thermal energy generator generating thermal energy, in the thermal energy generated by the thermal energy generator, the thermal energy supplied to the catalyst layer being made larger than the thermal energy supplied to the adsorption layer. 1. An exhaust after treatment system provided in an exhaust passage of an internal combustion engine , an adsorption layer having the function of adsorbing hydrocarbons in the exhaust;', 'a catalyst layer arranged at the same position as the adsorption layer in the direction of flow of exhaust or at the downstream side from the adsorption layer and having an oxidation function of oxidizing the hydrocarbons; and', 'a thermal energy generator generating thermal energy, wherein', 'in the thermal energy generated by the thermal energy generator, the thermal energy supplied to the catalyst layer being made larger than the thermal energy supplied to the adsorption layer., 'the exhaust after treatment system comprising2. The exhaust after treatment system according to claim 1 , whereinthe exhaust after treatment system further comprises a microwave irradiation device configured to irradiate microwaves toward the catalyst layer, andthe thermal energy generator is a microwave absorber contained in the catalyst layer and generating heat by being irradiated by microwaves.3. The exhaust after treatment system according to claim 1 , whereinthe adsorption layer and the catalyst layer are formed at the same position on the surface of a substrate in layers such that the adsorption layer becomes a lower layer and the catalyst layer ...

OXIDATION CATALYST FOR A DIESEL ENGINE EXHAUST

An oxidation catalyst is described for treating an exhaust gas produced by a diesel engine comprising a catalytic region and a substrate, wherein the catalytic region comprises a catalytic material comprising: a copper (Cu) component; a platinum group metal (PGM) selected from the group consisting of (i) platinum (Pt), (ii) palladium (Pd) and (iii) platinum (Pt) and palladium (Pd); and a support material, which is a refractory oxide comprising alumina; wherein the platinum group metal (PGM) and the copper (Cu) component is each supported on the support material. 1. An oxidation catalyst for treating an exhaust gas produced by a diesel engine comprising a catalytic region and a substrate , wherein the catalytic region comprises a catalytic material comprising:a copper (Cu) component;a platinum group metal (PGM) selected from the group consisting of (i) platinum (Pt), (ii) palladium (Pd) and (iii) platinum (Pt) and palladium (Pd); anda support material, which is a refractory oxide comprising alumina;wherein the platinum group metal (PGM) and the copper (Cu) component is each supported on the support material.2. An oxidation catalyst according to claim 1 , wherein the copper component is copper claim 1 , a compound of copper or a mixture thereof claim 1 , wherein the compound of copper is an oxide of copper.3. An oxidation catalyst according to claim 1 , wherein the refractory oxide may comprises a mixed or composite oxide comprising alumina claim 1 , which is selected from the group consisting of silica-alumina claim 1 , ceria-alumina claim 1 , titania-alumina claim 1 , zirconia-alumina and alumina-magnesium oxide.4. An oxidation catalyst according to claim 1 , wherein the refractory oxide is alumina claim 1 , silica-alumina or alumina doped with silica claim 1 , preferably the refractory oxide is alumina.5. An oxidation catalyst according to claim 1 , wherein the catalytic region comprises copper in an amount of 0.1 to 15.0% by weight.6. An oxidation catalyst ...

ELECTRIC HEATING TYPE SUPPORT AND EXHAUST GAS PURIFYING DEVICE

An electric heating type support includes: a pillar shaped honeycomb structure being configured to a ceramic, including: an outer peripheral wall; and a partition wall disposed on an inner side of the outer peripheral wall, the partition wall defining a plurality of cells, each of the cells extending from one end face to other end face to form a flow path; an electrode layer disposed on a surface of the outer peripheral wall of the pillar shaped honeycomb structure; two or more underlayers having conductivity, the underlayers being provided on the electrode layer so as to be spaced apart from each other; and a metal electrode provided on the underlayers. 1. An electric heating type support , comprising:a pillar shaped honeycomb structure being configured to a ceramic, comprising: an outer peripheral wall; and a partition wall disposed on an inner side of the outer peripheral wall, the partition wall defining a plurality of cells, each of the cells extending from one end face to other end face to form a flow path;an electrode layer disposed on a surface of the outer peripheral wall of the pillar shaped honeycomb structure;two or more underlayers having conductivity, the underlayers being provided on the electrode layer so as to be spaced apart from each other; anda metal electrode provided on the underlayers,wherein a surface of each of the underlayers has a concave portion forming a space between each of the underlayers and the metal electrode.2. The electric heating type support according to claim 1 , wherein each of the underlayers has a concave-convex region provided in a mesh shape on a surface of each of the underlayers on the metal electrode side claim 1 , and wherein the concave portion is a concave region of the concave-convex region.3. The electric heating type support according to claim 1 , wherein the concave portion is a groove portion extending in parallel to a plane direction of the underlayers.4. The electric heating type support according to claim 3 ...

EXHAUST GAS PURIFICATION CATALYST

Object and purpose are to provide an exhaust gas purification catalyst capable of efficiently removing a nitrogen oxide in a relatively low-temperature exhaust gas discharged from a marine diesel engine or the like using a reducing agent in a smaller amount than in the past. An exhaust gas purification catalyst is used in a combustion exhaust gas purification method for removing a nitrogen oxide in a combustion exhaust gas by reducing the nitrogen oxide to nitrogen, wherein an alcohol is added to the combustion exhaust gas as a reducing agent for reducing the nitrogen oxide, and is characterized in that the catalyst is composed of a support and a denitration catalytic metal supported on the support, and the support is a zeolite having a value (S) obtained by dividing a peak area (A) in an Al—OH spectrum measured with a Fourier transform infrared spectrometer (FT-IR) by a measurement support weight (W) of 1500 to 3500. 1. An exhaust gas purification catalyst , which is used in a combustion exhaust gas purification method for removing a nitrogen oxide in a combustion exhaust gas by reducing the nitrogen oxide to nitrogen , wherein an alcohol is added to the combustion exhaust gas as a reducing agent for reducing the nitrogen oxide , characterized in thatthe catalyst is composed of a support and a denitration catalytic metal supported on the support, and the support is a zeolite having a value (S) obtained by dividing a peak area (A) in an Al—OH spectrum measured with a Fourier transform infrared spectrometer (FT-IR) by a measurement support weight (W) of 1500 to 3500.2. The exhaust gas purification catalyst according to claim 1 , wherein the zeolite has an FER-type structure.3. The exhaust gas purification catalyst according to claim 1 , wherein the denitration catalytic metal is Bi.4. The exhaust gas purification catalyst according to claim 2 , wherein the denitration catalytic metal is Bi. The present invention relates to an exhaust gas purification catalyst for ...

METAL FILTER FOR PURIFYING EXHAUST GAS FROM SHIP, AND PREPARATION METHOD THEREOF

The present invention relates to a metal filter for purifying the exhaust gas from a ship, and a preparation method thereof. The purpose of the present invention is to provide: a metal filter for purifying the exhaust gas from a ship, capable of reducing nitrogen oxide by 85% or more at 250-300° C.; and a preparation method thereof. The metal filter for removing nitrogen oxide contained in the exhaust gas from a ship of the present invention comprises an integrated catalyst, wherein a metal substrate comprising irregularities is coated with a low temperature active catalyst in which vanadium (V), tungsten (W) and alumina sol are supported in a Ti-pillared clay (Ti-PILC) powdered support. 1. A metal filter for purifying an exhaust gas from a ship , suitable for use in removing nitrogen oxide from the exhaust gas , the metal filter comprising a metal substrate having irregularities and a low-temperature active catalyst applied onto the metal substrate and comprising Ti-PILC (Pillared Clay) as a powder support and vanadium (V) , tungsten (W) and alumina sol supported thereon.2. The metal filter of claim 1 , wherein the low-temperature active catalyst comprises claim 1 , based on 100 parts by weight of Ti-PILC (Pillared Clay) claim 1 , 1˜10 parts by weight of V claim 1 , 1˜5 parts by weight of W claim 1 , and 5˜20 parts by weight of alumina sol.3. The metal filter of claim 1 , wherein the low-temperature active catalyst further comprises claim 1 , based on 100 parts by weight of Ti-PILC claim 1 , 1˜5 parts by weight of cerium (Ce) claim 1 , 5˜20 parts by weight of titanium dioxide (TiO) claim 1 , 1˜6 parts by weight of iron (Fe) claim 1 , and 1˜5 parts by weight of sulfur dioxide (SO).4. A method of manufacturing a metal filter for purifying an exhaust gas from a ship claim 1 , suitable for use in removing nitrogen oxide from the exhaust gas claim 1 , comprising:forming irregularities on a metal substrate; andimmersing the metal substrate having irregularities in a ...

BIMETALLIC CATALYST FOR CATALYTIC PARTIAL OXIDATION OF HYDROCARBONS

A bimetallic catalyst composition containing a mesh substrate having supported thereon an alumina washcoat on which are impregnated bimetallic particles of rhodium and ruthenium in specified amounts. A process for the catalytic partial oxidation of a hydrocarbon, such as methane or natural gas, involving contacting the hydrocarbon with an oxidant in the presence of the aforementioned bimetallic catalyst under reaction conditions sufficient to produce synthesis gas, that is, to a mixture of hydrogen and carbon monoxide.

METHOD AND SYSTEM FOR THE REMOVAL OF PARTICULATE MATTER AND NOXIOUS COMPOUNDS FROM FLUE-GAS USING A CERAMIC FILTER WITH AN SCR CATALYST

Method and system for the removal of nitrogen oxides, from flue gas at low temperatures. 1. A method for the removal of nitrogen oxides from flue gas from combustion facilities , comprising the steps ofpassing the flue gas through one or more ceramic filter catalysed with a catalyst for selective reduction of nitrogen oxides in presence of ammonia added to the flue gas either as such or in form of a precursor thereof;at a temperature below 250° C. injecting an effluent gas containing nitrogen dioxide into the flue gas upstream the one or more ceramic filters;providing the effluent gas containing nitrogen dioxide by steps ofcatalytically oxidizing ammonia or a precursor thereof with an oxygen containing atmosphere to an effluent gas containing nitrogen monoxide and oxygen in presence of an oxidation catalyst;cooling the effluent gas to ambient temperature and oxidizing the nitrogen monoxide in the cooled effluent gas to the nitrogen dioxide containing effluent gas.2. The method of claim 1 , wherein the oxygen containing atmosphere comprises flue gas.3. The method of claim 1 , wherein the oxygen containing atmosphere is ambient air.4. The method according to claim 1 , wherein the nitrogen dioxide containing effluent gas is injected into the flue gas in an amount resulting in 45 to 55% by volume of the nitrogen oxides is nitrogen dioxide at inlet to the catalyst for selective reduction of nitrogen oxides.5. The method according to claim 1 , wherein the oxidation of the nitrogen monoxide in the cooled effluent gas to the nitrogen dioxide containing effluent gas is performed in presence of an oxidation catalyst.6. The method according to claim 1 ,wherein the one or more ceramic filters are in form of ceramic candle filters.7. System for use in the method according to claim 1 , comprising within a flue gas duct a filter house with one or more ceramic filters catalysed with a catalyst for selective reduction of nitrogen oxides;upstream the one or more ceramic filters or ...

Catalyst Carrier

A catalyst carrier may have a cross-sectional shape that may include a plurality of surface channels having a first channel width and a second channel width, where the first channel width may be closer to a periphery of the cross-sectional shape than the second channel width and the first channel width may be less than the second channel width. The cross-sectional shape may further include a plurality of surface features where at least one surface feature is located between at least one pair of surface channels. The cross-sectional shape may further include a ratio L/Lof at least about 1.7, where Lis a length of a total contour of the cross-sectional shape and Lis a length of an outer simple convex perimeter of the cross-sectional shape. 1. A catalyst carrier having a cross-sectional shape comprising:a plurality of surface channels, each surface channel having a first channel width and a second channel width, wherein the first channel width is closer to a periphery of the cross-sectional shape than the second channel width and wherein the first channel width is less than the second channel width;a plurality of surface features, wherein at least one surface feature is located between at least one pair of adjacent surface channels; and{'sub': OC', 'SCP', 'OC', 'SCP, 'a ratio L/Lof at least about 1.7, where Lis a length of a total contour of the cross-sectional shape and Lis a length of an outer simple convex perimeter of the cross-sectional shape.'}2. The catalyst carrier claim 1 , wherein the cross-sectional shape further comprises a ratio L/Lof not greater than about 2.8.3. The catalyst carrier of claim 1 , wherein the catalyst carrier further comprises a ratio GSA/dP of at least about 0.62 (m/m)/(Pa/m) and not greater than about 0.98 claim 1 , where GSA is a geometric surface area of the catalyst carrier and dP is a pressure drop of the catalyst carrier as measured at a mass flow of 2440 kg/mhr (500 lbs/ft*hr).4. The catalyst carrier of claim 1 , wherein the ...

Exhaust gas heating device, associated exhaust line and vehicle

An exhaust gas purification device comprises a first heating element made from an electrically conductive material, a second heating element made from an electrically conductive material, and a power supply configured to circulate an electric current in the first heating element and in the second heating element. The power supply comprises a first electrode electrically connected to the first heating element and a second electrode electrically connected to the second heating element. The heating device includes a substrate extending between the first heating element and the second heating element, and a connecting element electrically connecting the first heating element and the second heating element.

LOW BULK DENSITY, HIGH GEOMETRIC SURFACE AREA HONEYCOMB BODIES

Ceramic honeycomb bodies and methods for then manufacture are provided. The ceramic honeycomb body comprises a bulk density of less than 210 g/L, a geometric surface area (GSA) greater than 93 in(3.66 mm), a mechanical integrity factor (MIF) greater than 0.28%, and a back pressure factor (BPF) greater than 0.4 mm. 1. A ceramic honeycomb body comprising:{'sub': w', 'cell', 'cell', 'c, 'sup': −1', '2, 'an inlet face, an outlet face, and a plurality of parallel, elongate, open-ended cells formed by a web of intersecting cell walls having a web thickness (t) traversing the ceramic honeycomb body from the inlet face to the outlet face thereof, each cell defining a cell perimeter P and cell area (A), the open-ended cells configured with a cell density in cells per square inch (CPSI) and defining a percentage open frontal area (% OFA) of the ceramic honeycomb body, wherein % OFA=CPSI*A, the intersecting cell walls being comprised of a ceramic material having a density ρand a volume percentage porosity (% porosity), wherein the ceramic honeycomb body comprises a bulk density of less than 210 g/L, a geometric surface area (GSA) greater than 93 in, a mechanical integrity factor (MIF) greater than 0.28%, and a back pressure factor (BPF) greater than 0.4 mm.'}2. The ceramic honeycomb body of claim 1 , wherein the ceramic honeycomb body comprises a bulk density of less than 210 g/L claim 1 , a geometric surface area (GSA) greater than 93 in claim 1 , a mechanical integrity factor (MIF) greater than 0.4% claim 1 , and a back pressure factor (BPF) greater than 0.4 mm.3. The ceramic honeycomb body of claim 1 , wherein the ceramic honeycomb body comprises a bulk density of less than 210 g/L claim 1 , a geometric surface area (GSA) greater than 93 in claim 1 , a mechanical integrity factor (MIF) greater than 0.5% claim 1 , and a back pressure factor (BPF) greater than 0.4 mm.4. The ceramic honeycomb body of claim 1 , wherein the ceramic honeycomb body comprises a bulk density of less ...

CONTOURED HONEYCOMB BODIES

Engine exhaust gas treatment article comprising a contoured honeycomb body () including a contoured outlet end face () are disclosed. Also disclosed are methods of manufacturing an engine exhaust gas treatment article. 1. An engine exhaust gas treatment article comprising:a honeycomb body comprising a longitudinal axis, a maximum axial length, a minimum axial length, a plurality of channel walls extending from an inlet end face to an outlet end face defining cell channels therebetween, and a radial area perpendicular to the longitudinal axis, and an outer periphery extending from the inlet end face to the outlet end face, wherein at least one of the inlet end face and the outlet end face of the honeycomb body includes a contour surface that provides a uniform exhaust gas residence time across the radial area of the honeycomb body perpendicular to the longitudinal axis that yields a reduction of at least 20% in a ratio of maximum residence to minimum residence of substrate that has flat surfaces on both ends when exhaust gas is flowed through the honeycomb body.2. The engine exhaust gas treatment article of claim 1 , wherein contour surface that provides a uniform exhaust gas residence time across the radial area of the honeycomb body that yields a reduction of at least 30% in the ratio of maximum residence to minimum residence of substrate that has flat surfaces on both ends when exhaust gas is flowed through the honeycomb body.3. The engine exhaust gas treatment article of claim 1 , wherein contour surface that provides a uniform exhaust gas residence time across the radial area of the honeycomb body that yields a reduction of at least 40% in the ratio of maximum residence to minimum residence of substrate that has flat surfaces on both ends when exhaust gas is flowed through the honeycomb body.4. The engine exhaust gas treatment article of claim 1 , wherein only the outlet end face includes a contour surface that provides a uniform exhaust gas residence time ...

CATALYZED SCR FILTER AND EMISSION TREATMENT SYSTEM

Provided is a catalyst article for simultaneously remediating the nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons present in diesel engine exhaust streams. The catalyst article has a soot filter coated with a material effective in the Selective Catalytic Reduction (SCR) of NOx by a reductant, e.g., ammonia. 1. A catalyst article consisting essentially of a wall flow monolith and a catalytic material , wherein the wall flow monolith has a plurality of longitudinally extending passages fatined by longitudinally extending walls bounding and defining said passages , wherein the passages comprise inlet passages having an open inlet end and a closed outlet end , and outlet passages having a closed inlet end and an open outlet end , the wall flow monolith has a porosity of from 50% to 60% and an average pore size of from 10 to 25 microns , and the wall flow monolith contains the catalytic material;{'sup': '3', 'wherein the catalytic material comprises an SCR catalyst composition including a slurry-loaded washcoat of a zeolite and base metal selected from one or more of a copper and iron component, the washcoat permeating the walls at a loading up to 2.4 g/in, the wall flow monolith having integrated, NOx and particulate removal efficiency in which presence of the catalytic material in the wall flow monolith catalyzes the oxidation of soot.'}2. The catalyst article of claim 1 , wherein the SCR catalyst composition permeates the walls of the monolith at a concentration of at least 1.3 g/in.3. The catalyst article of claim 2 , wherein there is from 1.6 to 2.4 g/inof SCR catalyst composition disposed on the wall flow monolith.4. The catalyst article of claim 1 , wherein the SCR catalyst composition is effective to catalyze the reduction of NOx at a temperature below about 600° C. and is able to aid in regeneration of the wall flow monolith by lowering the temperature at which soot captured by the wall flow monolith is combusted.5. The catalyst article of ...

Catalyst Carrier

A catalyst carrier may have a cross-sectional shape that may include a plurality of surface channels having a first channel width and a second channel width, where the first channel width may be closer to a periphery of the cross-sectional shape than the second channel width and the first channel width may be less than the second channel width. The cross-sectional shape may further include a plurality of surface features where at least one surface feature is located between at least one pair of surface channels. The cross-sectional shape may further include a ratio L/Lof at least about 1.7, where Lis a length of a total contour of the cross-sectional shape and Lis a length of an outer simple convex perimeter of the cross-sectional shape. 1. A catalyst carrier having a cross-sectional shape comprising:a plurality of surface channels, each surface channel having a first channel width and a second channel width, wherein the first channel width is closer to a periphery of the cross-sectional shape than the second channel width and wherein the first channel width is less than the second channel width;a plurality of surface features, wherein at least one surface feature is located between at least one pair of adjacent surface channels; and{'sup': 2', '3', '2', '2, 'wherein the catalyst carrier comprises a ratio GSA/dP of at least about 0.62 (m/m)/(Pa/m), where GSA is a geometric surface area of the catalyst carrier and dP is a pressure drop of the catalyst carrier as measured at a mass flow of 2440 kg/m*hr (500 lbs/ft*hr).'}2. The catalyst carrier of claim 1 , wherein the catalyst carrier further comprises a ratio GSA/PCof not greater than about 0.98.3. The catalyst carrier of claim 1 , wherein the catalyst carrier further comprises a ratio GSA/PCof at least about 5.9 claim 1 , where GSA is the geometric surface area of the catalyst carrier and PC is a calculated piece count.4. The catalyst carrier of claim 1 , wherein the catalyst carrier further comprises a GSA at least ...

High Capacity Structures and Monoliths Via Paste Imprinting

The disclosure relate generally to structures, forms, and monoliths, and methods of preparing the same. This disclosure can produce uniform structured passageways or channels of active material, including adsorbent or catalyst, by imprinting or molding features into a paste on a support that can be subsequently assembled into a gas or liquid treating structure, i.e. a monolith. The paste, which can include an active material, binder, and other potential additives, can be applied to the support or pushed through a support (as in a mesh) as a thin film. The paste can be imprinted, stamped, shaped or otherwise handled to give features of desired height, shape, width, and positioning. When stacked or rolled, the features of one layer contact a subsequent layer, which seal to form passageways. The resulting structure can have high cell-density (>1000 cells per square inch) and a large volume fraction of active material. 1. A structure comprising layered coated supports and passageways between adjacent layered coated supports ,wherein each layered coated support comprises a support having a first and second side, and a composite on at least the first side of the support, the composite comprising an active material, and having features in the surface of the composite; andthe passageways being formed at the contact of the features in a coating on the first side of a layered structure with a side of an adjacent layered structure.2. The structure of claim 1 , wherein the composite further comprises a binder.3. The structure of claim 1 , wherein the support comprises a metal substrate.4. The structure of claim 1 , where the support comprises a sheet claim 1 , foil or mesh.5. The structure of wherein the layered coated support comprises a composite on the second side.6. The structure of claim 5 , wherein the passageways are formed at the contact of the features in the coating on the first side of a coated support with a composite on the second side an adjacent support.7. The ...

HEATER, METHOD OF MANUFACTURING THE SAME, AND SYSTEM

A heater includes: a conductive ceramic cylinder tube provided with a plurality of cells, each cell being defined by a pair of first cell-walls and a pair of second cell-walls, each first cell-wall extending in a radial direction of the ceramic cylinder tube, and each second cell-wall extending so as to cross the radial direction of the ceramic cylinder tube; an inner electrode electrically coupled to an inner wall of the ceramic cylinder tube; and an outer electrode electrically coupled to an outer wall of the ceramic cylinder tube. Linear portions are radially arranged in the ceramic cylinder tube, each linear portion linearly extending in the radial direction of the ceramic cylinder tube so as to include a plurality of first cell-walls that are arranged on the same axial line that extends in the radial direction of the ceramic cylinder tube. The inner and outer electrodes are provided such that current flows radially at least via said linear portions between the inner and outer electrodes. 1. A heater comprising:a conductive ceramic cylinder tube provided with a plurality of cells, each cell being defined by a pair of first cell-walls and a pair of second cell-walls, each first cell-wall extending in a radial direction of the ceramic cylinder tube, and each second cell-wall extending so as to cross the radial direction of the ceramic cylinder tube;an inner electrode electrically coupled to an inner wall of the ceramic cylinder tube; andan outer electrode electrically coupled to an outer wall of the ceramic cylinder tube, whereinlinear portions are radially arranged in the ceramic cylinder tube, each linear portion linearly extending in the radial direction of the ceramic cylinder tube so as to include a plurality of first cell-walls that are arranged on the same axial line that extends in the radial direction of the ceramic cylinder tube, andthe inner and outer electrodes are provided such that current flows radially at least via said linear portions between the ...

EXHAUST GAS PURIFICATION CATALYST

In an exhaust gas purifying catalyst according to the present invention, a substrate includes inflow-side cells, outflow-side cells, and porous partition walls, each partition wall separating the inflow-side cell from the outflow-side cell. Catalyst portions include: first catalyst portions, each first catalyst portion being provided on a surface of the partition wall that faces the inflow-side cell on an upstream side in an exhaust gas flow direction, and second catalyst portions, each second catalyst portion being provided on a surface of the partition wall that faces the outflow-side cell on a downstream side, and the exhaust gas purifying catalyst satisfies the following expressions: 1. An exhaust gas purifying catalyst comprising: a substrate and catalyst portions provided in the substrate , inflow-side cells, each inflow-side cell being a space having an open end on an inflow side thereof and a closed end on an outflow side thereof in an exhaust gas flow direction;', 'outflow-side cells, each outflow-side cell being a space having a closed end on an inflow-side thereof and an open end on an outflow side thereof in the exhaust gas flow direction; and', 'porous partition walls, each partition wall separating the inflow-side cell from the outflow-side cell, and, 'the substrate including (group A) first catalyst portions, each first catalyst portion being provided at least on a part of a surface of the partition wall that faces the inflow-side cell on an upstream side in the exhaust gas flow direction; and', '(group B) second catalyst portions, each second catalyst portion being provided at least on a part of a surface of the partition wall that faces the outflow-side cell on a downstream side in the exhaust gas flow direction,, 'the catalyst portions includingwherein the catalyst includes a first region and a second region in the exhaust gas flow direction,in the first region, the first catalyst portions are provided on the partition walls and the second catalyst ...

DRY SCRUBBER SYSTEM WITH LOW LOAD DISTRIBUTOR DEVICE

An air quality control system (AQCS) useful for treating flue gas FG, such as flue gas FG produced by a fossil fuel fired boiler is described. The AQCS is equipped with a dry scrubber low load distributor device With the low load distributor device flue gas FG flow through a dry scrubber reactor is stabilized under varying plant load conditions to maintain AQCS stability, efficiency and effectiveness. 1. An air quality control system for treating flue gas produced in a combustion process to produce cleaned flue gas comprising:a moistened reducing agent distributor device operable to extend outwardly from a distribution device disperser plate within a dry scrubber reactor to reduce area of flue gas flow through the dry scrubber reactor when operated under low load conditions and operable to retract inwardly beneath the distribution device disperser plate within a dry scrubber reactor to increase area of flue gas flow through the dry scrubber reactor when not operated under low load conditions.2. The system of claim 1 , wherein the distributor device is operable to extend and retract from beneath the disperser plate supported within opposed side edge channels formed in an interior of opposed elongated side edge support arms.3. The system of claim 1 , wherein the disperser plate includes one or more openings therethrough for flue gas flow.4. The system of claim 1 , wherein the distributor device include one or more openings therethrough for flue gas flow5. The system of claim 1 , wherein the distributor device is supported by a plurality of support arms rotatably fixed to an axil.6. The system of claim 1 , wherein the distributor device is supported by a plurality of support arms rotatably fixed to an axil and is operable to extend and retract from beneath the disperser plate by rotation of the plurality of support arms about the axil.7. The system of wherein the distributor device is operable manually claim 1 , electronically claim 1 , or pneumatically.8. The system ...

Catalyst body, electrically heated catalyst and motor vehicle with a catalyst

A catalyst body for an electrically heated catalyst has an electrical contacting assembly, which is arranged on the catalyst body and comprises an electrical conductor embedded in the catalyst body and extending in a longitudinal direction of the catalyst body and at least up to one end face of the catalyst body.

Catalytic Converter Substrate

A catalytic converter substrate comprising a plurality of micro-structured hollow ceramic tubes, each tube having an inside surface and an outside surface, the inside surface having openings to micro-channels distributed radially throughout the tube cross-section, the micro-channels extending from the openings in the inside surface towards the outside surface. 1. A catalytic converter substrate comprising a plurality of micro-structured tubes , each tube having an inside surface and an outside surface , wherein:at least one of the inside surface and the outside surface has a plurality of openings to micro-channels; andthe micro-channels extend from said openings in the at least one surface towards the other surface.2. The catalytic converter substrate of claim 1 , wherein the tubes are ceramic tubes.3. The catalytic converter substrate of claim 1 , wherein the micro-channels extend from openings in the inside surface towards the outside surface.4. The catalytic converter substrate of wherein each tube comprises two distinct layers claim 1 , the first layer containing the micro-channels extending from the inside surface and terminating within the tube cross-section and a second solid layer at the outside surface.5. The catalytic converter substrate of any one of wherein the second solid layer has a thickness of up to 70% of the thickness of the wall of the micro-structured tubes.6. The catalytic converter substrate of claim 1 , wherein the substrate comprises one or more of: cordierite; zirconia; yttrium stabilised zirconia; titania; silicon carbide; clay; alumina; stainless steel claim 1 , FeCr alloys; alloys of iron; alloys of aluminium; or sintered metals.7. The catalytic converter substrate of claim 1 , wherein the GSA is in the range 8 claim 1 ,000 m/mto 15 claim 1 ,000 m/m.8. The catalytic converter substrate of wherein the internal diameter of the micro-structured hollow tubes is from 0.5 to 4 mm.9. The catalytic converter substrate of wherein the wall ...

WALL-FLOW FILTER COMPRISING CATALYTIC WASHCOAT

A catalysed honeycomb wall-flow filter for treating exhaust gas comprising particulate matter emitted from an internal combustion engine, which filter comprising a honeycomb substrate having a first end and a second end and comprising an array of interconnecting porous walls defining an array of longitudinally extending first channels and second channels, wherein the first channels are bordered on their sides by the second channels and have a larger hydraulic diameter than the second channels, wherein the first channels are end-plugged at a first end of the honeycomb substrate and the second channels are end-plugged at a second end of the honeycomb substrate, wherein channel wall surfaces of the first channels comprise an on-wall-type catalytic washcoat. The invention also relates to an exhaust system comprising the catalysed filter and to methods of making it. 1. A catalysed honeycomb wall-flow filter for treating exhaust gas comprising particulate matter emitted from an internal combustion engine , which filter comprising a honeycomb substrate having a first end and a second end and comprising an array of interconnecting porous walls defining an array of longitudinally extending first channels and second channels , wherein the first channels are bordered on their sides by the second channels and have a larger hydraulic diameter than the second channels , wherein the first channels are end-plugged at a first end of the honeycomb substrate and the second channels are end-plugged at a second end of the honeycomb substrate , wherein channel wall surfaces of the first channels comprise an on-wall-type catalytic washcoat.2. A catalysed filter according to claim 1 , wherein the catalytic washcoat on channel wall surfaces of the first channels additionally permeates the interconnecting porous walls thereof.3. A catalysed filter according to claim 1 , wherein a catalytic washcoat is located at on-wall surfaces claim 1 , permeates the interconnecting porous wall or both at ...

CATALYTIC CONVERTER SUBSTRATES COMPRISING TRIPLY PERIODIC MINIMAL SURFACES

Described herein are catalytic converter substrates or cores based on triply periodic minimal surfaces (TPMS) geometries, along with methods of making and using the same. 1. A substrate structure for a converter , the substrate structure comprising a plurality of unit cells arranged in three dimensions ,wherein each of the plurality of unit cells comprises a cavity defined by a triply periodic minimal surface, andwherein the cavities of the plurality of unit cells are interconnected to allow a fluid to pass through the cavities of the plurality of unit cells.2. The substrate structure of claim 1 , wherein each of the plurality of unit cells comprises a sheet-shaped body claim 1 , and both opposing surfaces of the sheet-shaped body define triply periodic minimal surfaces that define cavities.3. The substrate structure of claim 2 , wherein the sheet-shaped body has a uniform thickness.4. The substrate structure of claim 1 , wherein each of the plurality of unit cells comprises a solid body claim 1 , and only one surface of opposing surfaces of the solid body defines a triply periodic minimal surface that defines a cavity.5. The substrate structure of claim 1 , wherein the triply periodic minimal surface is a Schwarz Primitive surface claim 1 , a Schwarz crossed layers of parallels (CLP) claim 1 , a Schoen's Gyroid surface claim 1 , a Schoen's I-WP surface claim 1 , a Schwarz diamond surface claim 1 , a Fischer-Koch PMY surface claim 1 , a FRD surface claim 1 , a Fischer-Koch CY surface claim 1 , a Fischer-Koch S surface claim 1 , or a Neovius surface.6. The substrate structure of claim 1 , wherein the substrate structure comprises a metallic material and/or a ceramic material.7. The substrate structure of further comprising a catalyst disposed on the triply periodic minimal surface.8. The substrate structure of further comprising a washcoat claim 7 , wherein the catalyst is dispersed in the washcoat or impregnated into the washcoat.9. The substrate structure of claim ...

Catalyzed SCR Filter and Emission Treatment System

Provided is a catalyst article for simultaneously remediating the nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons present in diesel engine exhaust streams. The catalyst article has a soot filter coated with a material effective in the Selective Catalytic Reduction (SCR) of NOx by a reductant, e.g., ammonia.

APPARATUS AND METHOD FOR ENGINE BACKPRESSURE REDUCTION

An improved catalytic substrate for use with a can in an automotive exhaust system. The improvement includes an insulation material thermally separating the substrate into a central zone and an outer zone surrounding the central zone. The insulation material, central zone and outer zone collectively defining a modified substrate. The insulation material is adapted such that in an operating condition, the gas flow through the modified substrate is characterized by a static pressure that, on the upstream-facing surface of the modified substrate has a peak at a point generally central to the upstream-facing surface of the modified substrate; as the upstream-facing surface extends radially away from the point to the periphery, decreases, but for a surge after the upstream-facing surface extends beyond the insulation material. 1. An improved catalytic substrate for use with a can in an automotive exhaust system , the substrate being of the type which is disposed in use in the can , the improvement comprising: has a peak at a point generally central to the upstream-facing surface of the modified substrate', a surge, after the upstream-facing surface extends beyond the insulation material; and', 'edge effects associated with the can., 'as the upstream-facing surface extends radially away from the point to the periphery, decreases, but for'}], 'an insulation material thermally separating the substrate into a central zone and an outer zone surrounding the central zone, the insulation material, central zone and outer zone collectively defining a modified substrate, the insulation material being adapted such that, in an operating condition, the gas flow through the modified substrate is characterized by a static pressure that, on the upstream-facing surface of the modified substrate,'}2. Apparatus according to claim 1 , characterized in that claim 1 , in said operating condition:as the upstream-facing surface extends radially away from the point towards the periphery, the gas ...

Control device for flue gas denitrizer, boiler facility, control method for flue gas denitrizer, and control program for flue gas denitrizer

A control device for controlling a flue gas denitrizer including a reductant supply part for supplying a reductant to an exhaust gas passage to which an exhaust gas from a boiler is introduced. The control device comprises: a storage part which stores a plurality of opening degree patterns of a plurality of first valves corresponding to a plurality of operational states of the boiler respectively; an opening degree pattern acquisition part configured to acquire an opening degree pattern corresponding to a present operational state of the boiler among the plurality of opening degree patterns from the storage part; and a first valve control part configured to regulate an opening degree of each of the plurality of first valves, on the basis of the opening degree pattern acquired by the opening degree pattern acquisition part.

Metal Foil Catalyst For The Control Of Emissions From Diesel Engines

A diesel engine emissions catalyst which may be used to fill a niche between standard oxidation catalyst and diesel particulate filters for control of diesel particulate matter. The catalyst includes a structure (substrate) comprising one or more coated, corrugated micro-expanded metal foil layers. The coated surface may be a high surface area, stabilized, and promoted washcoat layer. The corrugated pattern may include a herringbone-style pattern that, when in use, is oriented in a longitudinal direction of the diesel engine exhaust flow. The micro-expanded metal foil provides small openings or eyes that, as the exhaust flow passes through the catalyst (transverse to the eye opening), particulates in the flow impinge on the surface and becomes trapped in the eyes. The catalyst may be used to treat a locomotive engine exhaust stream and may be used with a selective catalyst reduction system. 110. A diesel engine emissions catalyst () comprising:{'b': 11', '13', '19, 'a substrate () consisting of a plurality of coated, corrugated, micro-expanded metal foil layers (), each of said layers overlapping an adjacent layer of the plurality to form open flow channels in between, each said layer containing a plurality of eyes () with diamond-shaped openings in a range of 0.058 mm to 2.032 mm and arranged in a herringbone pattern;'}{'b': 23', '23, 'sup': 2', '2, 'a coating of each said layer comprising a washcoat layer () and a precious metal oxide, the washcoat layer () being in a range of 80.5 g/l to 102.5 g/l, including a metal oxide, and having a porous surface area in a range of 100 m/g to 250 m/g of the metal oxide, the precious metal being in a range of 0.071 g/l to 1.41 g/l; and'}{'b': 27', '11, 'sup': 2', '2, 'the open flow channels () per unit area of a face of the substrate () being in a range of 15 cells/cmto 62 cells/cm.'}21013. A diesel engine emissions catalyst () according to claim 1 , a metal of each said metal foil layers () including chromium and aluminum. ...

HONEYCOMB SUBSTRATE WITH ELECTRODE

A honeycomb substrate with an electrode includes a conductive ceramic honeycomb substrate that generates heat by energization and a pair of electrodes that is provided to face an outer periphery of the honeycomb substrate. A coefficient of thermal expansion of the electrode is higher than a coefficient of thermal expansion of the honeycomb substrate. 1. A honeycomb substrate with an electrode , the honeycomb substrate comprising:a conductive ceramic honeycomb substrate that generates heat by energization; anda pair of film-shaped electrodes that is provided to face an outer periphery of the honeycomb substrate, whereinthe electrode is directly joined to the honeycomb substrate,a coefficient of thermal expansion of the electrode is higher than a coefficient of thermal expansion of the honeycomb substrate, and{'sub': h', 'h', 'e', 'e', 'h', 'h', 'e', 'e, 'b': '3', 'a relationship Q/C>Q/Cis established, where a Joule heating value of the honeycomb substrate per hour at the time of energization is Q, a heat capacity of the honeycomb substrate is C, a Joule heating is value of the electrode per hour at the time of energization is Q, and a heat capacity of the electrode is C.'}2. The honeycomb substrate with an electrode according to claim 1 , whereina ratio between the coefficient of thermal expansion of the honeycomb substrate and the coefficient of thermal expansion of the electrode is in a range of 1:1.1 to 1:3.3. The honeycomb substrate with an electrode according to claim 1 , whereina ratio between a heat capacity of the honeycomb substrate and a heat capacity of the electrode is in a range of 10:1 to 300:1.4. The honeycomb substrate with an electrode according to claim 1 , whereinthe honeycomb substrate includes a silicon particle.5. The honeycomb substrate with an electrode according to claim 1 , whereinthe electrode includes a silicon particle.6. The honeycomb substrate with an electrode according to claim 1 , whereineach of the honeycomb substrate and the ...

SYSTEM AND METHOD FOR MERCURY CONTROL FOR USE IN CONJUNCTION WITH ONE OR MORE NATIVE HALOGENS CONTAINED IN A COMBUSTION FUEL AND/OR SOURCE

The present invention relates generally to the field of emission control equipment for boilers, heaters, kilns, or other flue gas-, or combustion gas-, generating devices (e.g., those located at power plants, processing plants, etc.) and, in particular to a new and useful method and apparatus for: (a) achieving a reduction in the level of one or more halogens, or halogen-containing compounds, necessary to affect gas-phase mercury control; (b) permitting the oxidation of at least a portion of any elemental mercury (Hg) contained in a flue gas and/or combustion gas stream; and/or (c) permitting the oxidation of at least a portion of any elemental mercury (Hg) contained in a flue gas and/or combustion gas stream so that the use of at least one post-oxidation mercury capture method and/or process results in the capture of at least a portion of oxidized mercury contained in the flue gas and/or combustion gas stream. 1. A method for reducing or eliminating the amount and/or concentration of one or more halogen-containing compounds used to achieve mercury capture in a flue gas , the method comprising the steps of:(a) providing at least one combustible fuel source to a combustion zone of a furnace or boiler, the at least one combustible fuel having at least 400 ppm by weight of one or more native halogens and/or native halogen-containing compounds;(b) providing one or more metal-bearing compounds to a combustion zone or flue gas stream of a furnace, or boiler, at a point that is both prior to entry of the flue gas into an SCR;(c) providing less than about 2.5 ppm of one or more halogen-containing compounds to a combustion zone or flue gas stream of a furnace, or boiler, prior to entry of the flue gas into an SCR, wherein the halogen portion of the one or more halogen-containing compounds are liberated in the combustion zone or flue gas stream of the furnace or boiler and are converted to one or more corresponding gaseous hydrogen halide compounds;(d) permitting the one or ...

System and Method for Accommodating Aftertreatment Bricks

An aftertreatment system and method treats exhaust gasses produced by an internal combustion process or a similar process. The aftertreatment system includes an aftertreatment module having a sleeve extending between a first end and a second end. One or more aftertreatment bricks are axially inserted into a sleeve opening disposed in the first end of the sleeve. To prevent the aftertreatment bricks from unintentionally exiting the sleeve, a captive ring is disposed around the first end of the sleeve as a loose fitting collar. The captive ring is restrained on the sleeve by a circumferential bead protruding about the first end. The captive ring can couple with a retention ring placed adjacent the first end. When coupled to the captive ring, a portion of the retention ring extends partially across and blocks the sleeve opening, preventing the aftertreatment brick from exiting the sleeve. 1. An aftertreatment module comprising:at least one sleeve extending between a first end and an opposing second end along a sleeve axis, the at least one sleeve including a sleeve opening at the first end and a bead proximate the first end protruding radially outward about the sleeve axis;a frame including a planar surface perpendicular to the sleeve axis, the frame accommodating the at least one sleeve such that the first end extends from the planar surface and the bead is axially spaced from the planar surface;one or more aftertreatment bricks inserted in the at least one sleeve, each of the aftertreatment bricks including a substrate matrix and a mantle disposed around the substrate matrix;a captive ring disposed around the sleeve and axially positioned between the planar surface and the bead; anda retention ring disposed adjacent the first end and coupled with the captive ring, the retention ring shaped such that a portion of the retention ring is disposed over a portion of the sleeve opening.2. The aftertreatment module of claim 1 , wherein the sleeve is a tubular cylinder claim ...

Small Pore Molecular Sieve Supported Copper Catalysts Durable Against Lean/Rich Aging for the Reduction of Nitrogen Oxides

A method of using a catalyst comprises exposing a catalyst to at least one reactant in a chemical process. The catalyst comprises copper and a small pore molecular sieve having a maximum ring size of eight tetrahedral atoms. The chemical process undergoes at least one period of exposure to a reducing atmosphere. The catalyst has an initial activity and the catalyst has a final activity after the at least one period of exposure to the reducing atmosphere. The final activity is within 30% of the initial activity at a temperature between 200 and 500° C. 122-. (canceled)23. A method for using a catalyst comprising:{'sub': 3', 'x', '3, 'a. exposing an SCR catalyst comprising copper and a small-pore molecular sieve having an AFX structure to a reducing atmosphere comprising NHgenerated over a NOadsorber catalyst and using the SCR catalyst to store NHduring the exposing step, and'}{'sub': x', 'x', '3, 'b. contacting the SCR catalyst with NOin a non-reducing atmosphere to effect selective reduction of said NOby the stored NH.'}24. The method of claim 23 , wherein the small pore molecular sieve comprises SAPO-56 or SSZ-16.25. The method of claim 23 , wherein said small pore molecular sieve is SSZ-16 and has a silica-to-alumina ratio of 8 to 150.26. A system for treating exhaust gas comprising a NOadsorber catalyst disposed upstream of an SCR catalyst claim 23 , wherein said SCR catalyst comprises copper and small-pore molecular sieve having an AFX structure.27. The system of claim 26 , wherein the small pore molecular sieve comprises SAPO-56 or SSZ-16.28. The system of claim 26 , wherein the small pore molecular sieve is SSZ-16 and has a silica-to-alumina ratio of about 4 to about 200.29. The system of claim 26 , wherein said copper is present in said small pore molecular sieve in an amount from 0.5 to 5 weight percent.30. The system of claim 26 , wherein said NOadsorber catalyst comprises a precious metal and a basic material selected from the group consisting of an alkali ...

HONEYCOMB STRUCTURE

A honeycomb structure includes a honeycomb structure body having porous partition walls, wherein a value of a porosity of the partition wall in a partitioning wall portion between the two cells is defined as a porosity A, a value of a porosity of the partition wall in an intersecting portion that is a region connecting two or more wall portions is defined as a porosity B, a value of A/B obtained by dividing the porosity A by the porosity B is from 0.5 to 0.95, and the porosity A is from 10 to 40%. 1. A honeycomb structure comprising a honeycomb structure body having porous partition walls arranged to surround a plurality of cells which extend from a first end face to a second end face and become through channels for a fluid ,wherein a value of a porosity of the partition wall in a partitioning wall portion between the two cells is defined as a porosity A,a value of a porosity of the partition wall in an intersecting portion that is a region connecting two or more wall portions is defined as a porosity B,a value of A/B obtained by dividing the porosity A by the porosity B is from 0.5 to 0.95, andthe porosity A is from 10 to 40%.2. The honeycomb structure according to claim 1 , wherein an arithmetic mean of the porosity A and the porosity B is from 15 to 45%.3. The honeycomb structure according to claim 1 , wherein a shape of the cells in a cross section of the honeycomb structure body which is perpendicular to an extending direction of the cells is quadrangular or hexagonal.4. The honeycomb structure according to claim 1 , wherein a thickness of the partition walls is from 40 to 200 μm. The present application is an applications based on JP-2017-225577 filed on Nov. 24, 2017 and JP2018-196101 filed on Oct. 17, 2018 with Japan Patent Office, the entire contents of which are incorporated herein by reference.The present invention relates to a honeycomb structure, and more particularly, it relates to a honeycomb structure having an excellent thermal shock resistance.In ...

Catalyst and process for the production of diesel fuel from natural gas, natural gas liquids, or other gaseous feedstocks

A unique process and catalyst is described that operates efficiently for the direct production of a high cetane diesel type fuel or diesel type blending stock from stoichiometric mixtures of hydrogen and carbon monoxide. This invention allows for, but is not limited to, the economical and efficient production high quality diesel type fuels from small or distributed fuel production plants that have an annual production capacity of less than 10,000 barrels of product per day, by eliminating traditional wax upgrading processes. This catalytic process is ideal for distributed diesel fuel production plants such as gas to liquids production and other applications that require optimized economics based on supporting distributed feedstock resources.

EXHAUST GAS TREATMENT ARTICLE AND METHODS OF MANUFACTURING SAME

Exhaust gas treatment articles and methods of manufacturing the same are disclosed herein. An exhaust gas treatment article includes a porous ceramic honeycomb body with multiple channel walls defining cell channels that extend in an axial direction and an outer peripheral surface that extends in the axial direction. The exhaust gas treatment article further includes a metal layer that surrounds the porous ceramic honeycomb body and that is in direct contact with at least a portion of the outer peripheral surface of the porous ceramic honeycomb body. The metal layer includes a joint. The exhaust gas treatment article includes a shim that is located under the joint and that is in direct contact with at least a portion of the outer peripheral surface of the porous ceramic honeycomb body. 1. An exhaust gas treatment article comprising: a plurality of channel walls defining cell channels that extend in an axial direction between a first end face and a second end face of the porous ceramic honeycomb body, and', 'an outer peripheral surface that extends in the axial direction between the first end face and the second end face; and, 'a porous ceramic honeycomb body, comprisinga metal layer that surrounds the porous ceramic honeycomb body and that is in direct contact with at least a portion of the outer peripheral surface of the porous ceramic honeycomb body, wherein the metal layer includes a joint; anda shim that is located under the joint and that is in direct contact with at least a portion of the outer peripheral surface of the porous ceramic honeycomb body.2. The article of claim 1 , wherein the article does not include a mat between the metal layer and the outer peripheral surface of the porous ceramic honeycomb body.3. The article of claim 1 , wherein the joint is a welded joint.4. The article of claim 1 , wherein the joint extends in the axial direction.5. The article of claim 1 , wherein the shim comprises a metal material.6. The article of claim 1 , wherein the ...

HONEYCOMB BODY AND METHOD FOR PRODUCING THE HONEYCOMB BODY

A honeycomb body for exhaust gas aftertreatment includes a plurality of interconnected metal foils stacked on one another. The honeycomb body has a central first flow channel running in the axial direction of the honeycomb body, as an inflow section, and has a plurality of second flow channels between in each case two mutually adjacent metal foils. The first flow channel is in fluid communication with the second flow channels. The second flow channels formed between two mutually adjacent metal foils run in a straight line and parallel to one another along a radial direction of the honeycomb body. 113-. (canceled)1420231630. A honeycomb body ( , ) for exhaust gas aftertreatment , comprising a plurality of interconnected metal foils ( , , ) stacked on one another ,{'b': 20', '23', '20', '23', '11', '22', '1', '6', '30, 'wherein the honeycomb body (, ) has a central first flow channel running in the axial direction of the honeycomb body (, ), as an inflow section, and has a plurality of second flow channels (, ) between in each case two mutually adjacent metal foils (, , ),'}{'b': 11', '22, 'wherein the first flow channel is in fluid communication with the second flow channels (, ), and'}{'b': 11', '22', '1', '6', '30', '20', '23, 'wherein the second flow channels (, ) formed between two mutually adjacent metal foils (, , ) run in a straight line and parallel to one another along a radial direction of the honeycomb body (, ).'}1520112216221161620. The honeycomb body () as claimed in claim 14 , wherein the second flow channels ( claim 14 , ) between mutually adjacent metal foils ( claim 14 , ) are formed by corrugations ( claim 14 , ) in the metal foils ( claim 14 , ) claim 14 , wherein metal foils ( claim 14 , ) which are in each case directly mutually adjacent are arranged rotated with respect to one another by an angle of at least 5 degrees about the central axis of the honeycomb body ().1620233731163016303731. The honeycomb body ( claim 15 , ) as claimed in claim 15 ...

NITRIC OXIDE REDUCING CATALYST, METHOD FOR REDUCING NITRIC OXIDE, METHOD FOR PRODUCING NITROGEN, METHOD FOR TREATING NITRIC OXIDE AND CARBON MONOXIDE

The nitric oxide reducing catalyst contains a negatively charged copper cluster. 117-. (canceled)18. A method for reducing nitric oxide , comprising:a step of reducing nitric oxide to nitrogen in the presence of a negatively charged copper cluster.19. The method according to claim 18 , whereinthe copper cluster contains 2×p copper atoms, p being an integer of not less than 4.20. The method according to claim 19 , whereinp is an integer of 4 to 8.21. The method according to claim 20 , whereinp is an integer of 4 to 6.22. The method according to claim 18 , whereinthe copper cluster is partially oxidized.23. The method according to claim 22 , whereinthe copper cluster contains 1 or 2 oxygen atoms.24. The method according to claim 18 , whereinthe copper cluster is supported on a carrier.25. The method according to claim 18 , whereinthe copper cluster is a group of copper atoms bound together.26. The method according to claim 25 , whereinthe copper cluster is devoid of ligands.27. The method according to claim 26 , whereinthe copper cluster contains a metal and an oxygen.28. The method according to claim 18 , in which the negatively charged copper cluster additionally oxidizes carbon monoxide to form carbon dioxide.29. The method according to claim 28 , whereinthe nitric oxide and the carbon monoxide are removed from an exhaust gas.30. A method for treating nitric oxide and carbon monoxide claim 28 , comprising:{'claim-ref': {'@idref': 'CLM-00018', 'claim 18'}, 'a first step of the method according to to form an oxidized negatively charged copper cluster as well as the nitrogen; and'}a second step of allowing reaction of the oxidized negatively charged copper cluster with carbon monoxide to reduce the negatively charged copper cluster to its original state and carbon dioxide.31. The method according to claim 30 , whereinthe negatively charged copper cluster reduced to the original state in the second step is reused in the first step.32. The method according to claim 30 , ...

VEHICLE STORAGE SYSTEM AND CONVERTOR FOR USE IN SUCH A SYSTEM

A vehicle storage system, including: a tank configured to contain vapor or liquid and vapor, and a gas convertor to chemically convert at least one part of the vapor contained in the tank into liquid reaction products. The gas convertor contains, in use, a biological catalyst for the conversion of the vapor. 113-. (canceled)14. A vehicle storage system , comprising:a tank configured to contain vapor or liquid and vapor; anda gas convertor to chemically convert at least one part of the vapor contained in the tank into a liquid reaction product,wherein the gas convertor is configured to contain, in use, a biological catalyst for the conversion of the vapor,wherein the conversion of the vapor into the liquid reaction product is controlled such that pressure in the tank does not exceed a prescribed limit or is reduced.15. The vehicle storage system of claim 14 , wherein the gas converter comprises an outlet arranged such that the liquid reaction product can flow from the gas convertor to the tank.16. The vehicle storage system of claim 14 , wherein the gas converter comprises conditioning means configured to thermally condition the converter.17. The vehicle storage system of claim 14 , wherein the gas convertor comprises a substrate to which the biological catalyst is or can be immobilized.18. The vehicle storage system of claim 17 , wherein the substrate is arranged claim 17 , so that vapor flowing in the gas convertor needs to pass through the substrate.19. The vehicle storage system of claim 15 , wherein the substrate comprises drainage channels for draining the liquid reaction product to the outlet of the gas convertor.20. The vehicle storage system of claim 14 , wherein the gas converter is located at a position such that the liquid reaction product can flow from the gas convertor to the tank under influence of gravity.21. The vehicle storage system of claim 14 , wherein the tank is a fuel tank claim 14 , and wherein the gas convertor is configured to convert fuel ...

CATLYTIC CONVERTERS HAVING NON-LINEAR FLOW CHANNELS

Disclosed is a honeycomb catalyst substrate core having geometrically non-linear flow channels. In an embodiment, the honeycomb catalyst substrate core includes helical flow channels. In another embodiment, the honeycomb catalyst substrate core includes sinusoidal flow channels. In yet another embodiment, the honeycomb catalyst substrate core includes helical plus sinusoidal flow channels. The honeycomb catalyst substrate core comprises a plurality of parallel non-linear flow channels formed along a longitudinal axis of symmetry of the catalyst substrate core, each non-linear flow channel configured such that a turbulent vortical flow occurs during engine exhaust gas flow. Also disclosed is a method for manufacturing a ceramic honeycomb having non-linear flow channels, comprising the steps extrusion soft ceramic material through a die whilst the die moves through six degrees of freedom along its axis of symmetry. Disclosure includes a method for manufacturing a ceramic honeycomb having non-linear flow channels using three-dimensional printing. 1. A honeycomb catalyst substrate core , comprising:a plurality of parallel flow channels formed along a longitudinal axis of symmetry of said catalyst substrate core, each flow channel configured into a helix;a washcoat within which said catalyst is embedded, said washcoat being applied over said catalyst substrate;a mat cover that forms a skin over said honeycomb; anda housing that forms a protective outer shell over said honeycomb catalyst substrate core, said housing having an inlet and an outlet on opposite ends of said honeycomb catalyst substrate core, said inlet and outlet being configured for exhaust gases to pass through said catalyst substrate core.2. The honeycomb catalyst substrate core according to claim 1 , wherein said catalyst substrate core comprises a ceramic material.3. The honeycomb catalyst substrate core according to claim 1 , wherein said catalyst substrate core includes a metal.4. The honeycomb ...

Metallic film having applied flat electrical conductor and honeycomb body produced using said film

A metallic film includes: a top side; a flat electrical conductor; and a base insulation layer configured to attach the flat electrical conductor to the top side, the base insulation layer having: a cover layer covering the conductor in an electrically insulating manner. The film has at least one edge region without the electrical conductor and without either the base insulation layer or the cover layer, and the combined total thickness (D) of the electrical conductor, the base insulation layer and the cover layer, is less than 80 μm. 19-. (canceled)101. A metallic film () comprising:{'b': '2', 'a top side ();'}{'b': '14', 'a flat electrical conductor (); and'}{'b': 17', '14', '2', '17, 'claim-text': {'b': 18', '14, 'a cover layer () covering the conductor () in an electrically insulating manner,'}, 'a base insulation layer () configured to attach the flat electrical conductor () to the top side (), the base insulation layer () having{'b': 1', '11', '14', '17', '18, 'wherein the film () has at least one edge region () without the electrical conductor () and with either the base insulation layer () or the cover layer (), and'}{'b': 14', '17', '18, 'wherein the combined total thickness (D) of the electrical conductor (), the base insulation layer () and the cover layer (), is less than 80 μm.'}11111111. The metallic film () as claimed in claim 10 , wherein the film () comprises high-temperature-resistant steel and has a film width (FB) of 5 to 30 cm claim 10 , a film thickness (d) of 20 to 100 μm claim 10 , wherein the at least one edge region () of the metallic film () has a width of at least 0.5 cm.1211718. The metallic film () as claimed in claim 10 , wherein the base insulation layer () and the cover layer () are configured so as to prevent electrical flashovers at voltages of 20 Volt to 72 Volt.1311. The metallic film () as claimed in claim 10 , wherein the film () is smooth or corrugated.14114. The metallic film () as claimed in claim 10 , wherein the flat ...

IMPERMEABLE POLYMER COATING ON SELECTED HONEYCOMB CHANNEL SURFACES

Absorbent structures for COcapture include a honeycomb substrate having partition walls that extend through the honeycomb substrate. The partition walls have channel surfaces that define a plurality of individual channels including a plurality of reaction channels and a plurality of heat-exchange channels. The reaction channels and the heat-exchange channels are arranged such that individual reaction channels are in thermal communication with individual heat-exchange channels. Surfaces of the reaction channels surfaces include a sorbent material, and surfaces of the heat-exchange channels include a coating layer. The coating layer includes a water-impermeable layer formed from a polymer material. The polymer material of the water-impermeable layer does not substantially penetrate into the sorbent material of the partition walls or of the reaction-channel surfaces. Methods for forming the absorbent structures include coating the surfaces of the heat-exchange channels with the polymer material using a liquid composition such as an aqueous polymer emulsion. 2. The absorbent structure of claim 1 , wherein the honeycomb substrate is formed from the sorbent material.3. The absorbent structure of claim 1 , wherein the sorbent material is selected from the group consisting of zeolites claim 1 , Metallic Organic Frameworks claim 1 , clays claim 1 , layered double hydroxides claim 1 , solid amines claim 1 , alkali metal oxides claim 1 , alkaline earth metal oxides claim 1 , silicon carbide claim 1 , mullite claim 1 , alumina claim 1 , aluminum titanate claim 1 , carbon claim 1 , and composites containing any of these.4. The absorbent structure of claim 1 , wherein the honeycomb substrate is formed from a ceramic material other than the sorbent material claim 1 , and the ceramic material is loaded with the sorbent material during or after the formation of the honeycomb substrate.5. The absorbent structure of claim 1 , wherein the honeycomb substrate has a cell density of from ...

Catalyzed SCR Filter and Emission Treatment System

Provided is a catalyst article for simultaneously remediating the nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons present in diesel engine exhaust streams. The catalyst article has a soot filter coated with a material effective in the Selective Catalytic Reduction (SCR) of NOx by a reductant, e.g., ammonia.

Honeycomb Body For Exhaust Gas Aftertreatment

A honeycomb body for exhaust-gas aftertreatment and a method for producing the honeycomb body for exhaust-gas aftertreatment, the honeycomb body having a housing and a honeycomb structure with a multiplicity of channels. The honeycomb structure is formed with a partially structured layer and a smooth layer the smooth layer provides that, in at least one axial portion of the honeycomb structure, a first cell density in an inner radial zone is increased in relation to a second cell density in an outer radial zone. 110.-. (canceled)11. A honeycomb body for exhaust-gas aftertreatment , comprising:a housing; and radial zones of a cross section of the honeycomb structure;', 'at least one smooth layer; and', 'at least one at least partially structured layer;', 'a first cell density in an inner radial zone; and', 'a second cell density in an outer radial zone;', 'wherein the at least one smooth layer is configured such that, in at least one axial portion of the honeycomb structure, the first cell density is increased in relation to the second cell density., 'a honeycomb structure with a multiplicity of channels, comprising12. The honeycomb body as claimed in claim 11 , wherein the at least one smooth layer is provided only in the inner radial zone.13. The honeycomb body as claimed in claim 11 , wherein a respective smooth layer length of the at least one smooth layer is shorter in the outer radial zone than in the inner radial zone.14. The honeycomb body as claimed in claim 13 , wherein the respective smooth layer length decreases in a radially outward direction.15. The honeycomb body as claimed in claim 11 , wherein the at least one smooth layer has at least one recess in the outer radial zone claim 11 , and wherein a recess length of the at least one recess increases in a radially outward direction.16. The honeycomb body as claimed in claim 11 , wherein the at least one smooth layer has a multiplicity of holes in the outer radial zone claim 11 , and wherein at least one ...

HONEYCOMB STRUCTURE, MANUFACTURING METHOD FOR THE SAME, AND CANNING STRUCTURE

A honeycomb structure includes porous partition walls defining cells which extend from a first end face to a second end face and which become through channels for a fluid, and a porous circumferential wall integrally formed with the partition walls to surround an outermost circumference of the partition walls, a thickness of the partition walls is from 101 to 381 μm, porosities of the partition walls and the circumferential wall are both 48% or more, a porosity in a surface of the circumferential wall is higher than a porosity of an inner surface of the circumferential wall, and an average pore diameter in the surface of the circumferential wall is 10 μm or more. 1. A honeycomb structure comprising:porous partition walls defining cells which extend from a first end face to a second end face and which become through channels for a fluid; anda porous circumferential wall integrally formed with the partition walls to surround an outermost circumference of the partition walls,wherein a thickness of the partition walls is from 101 to 381 μm,porosities of the partition walls and the circumferential wall are both 48% or more,a porosity in a surface of the circumferential wall is higher than a porosity of an inner surface of the circumferential wall, andan average pore diameter in the surface of the circumferential wall is 10 μm or more.2. The honeycomb structure according to claim 1 ,{'sup': '2', 'wherein a cell density of the cells defined by the partition walls is from 15 to 62 cells/cm.'}3. The honeycomb structure according to claim 1 ,wherein the porosities of the partition walls and the circumferential wall are both from 48 to 75%.4. The honeycomb structure according to claim 1 ,wherein the average pore diameter in the surface of the circumferential wall is from 10 to 30 μm.5. The honeycomb structure according to claim 1 ,wherein in an end portion of each of the cells on the side of the first end face or the second end face, a plugging member which plugs an open end ...

REDUCTANT INJECTING DEVICE, EXHAUST GAS PROCESSING DEVICE AND EXHAUST GAS PROCESSING METHOD

A reductant injecting device includes: a honeycomb structure comprising: a pillar shaped honeycomb structure portion having a partition wall that defines a plurality of cells each extending from a fluid inflow end face to a fluid outflow end face; and at least one pair of electrode portions arranged on a side surface of the honeycomb structure portion; an inner cylinder being configured to house the honeycomb structure; a urea sprayer arranged at one end of the inner cylinder; and an outer cylinder arranged on an outer peripheral side of the inner cylinder, the outer cylinder being spaced apart from the inner cylinder. A flow path through which the carrier gas passes is formed between the inner cylinder and the outer cylinder. 1. A reductant injecting device , comprising: a pillar shaped honeycomb structure portion having a partition wall that defines a plurality of cells each extending from a fluid inflow end face to a fluid outflow end face; and', 'at least one pair of electrode portions being configured to heat the honeycomb structure portion by conducting a current, the pair of the electrode portions being arranged on a side surface of the honeycomb structure portion, the honeycomb structure being configured to be able to decompose urea in an aqueous urea solution in the honeycomb structure portion heated by conducting the current to generate ammonia;, 'a honeycomb structure comprisingan inner cylinder being configured to house the honeycomb structure, the inner cylinder having a carrier gas introduction port being configured to introduce a carrier gas, on the fluid inflow end face side;a urea sprayer being configured to spray the aqueous urea solution to the fluid inflow end face side of the honeycomb structure portion, the urea sprayer being arranged at one end of the inner cylinder; andan outer cylinder arranged on an outer peripheral side of the inner cylinder, the outer cylinder being spaced apart from the inner cylinder and having a carrier gas inflow port ...

EXHAUST SYSTEM

An exhaust system is provided. The exhaust system includes an exhaust conduit having a protuberance thereon. A reductant injector is provided on the protuberance. The reductant injector is positioned such that an ejection tip of the reductant injector is inclined with respect to a centerline of the exhaust conduit. A baffle assembly is coupled to an inner wall of the exhaust conduit. The baffle assembly is positioned upstream of the ejection tip of the reductant injector. A first plate of the baffle assembly is positioned parallel to the centerline of the exhaust conduit. A second plate of the baffle assembly extends from the first plate. The second plate is positioned angularly with respect to the first plate. The baffle assembly is configured to deflect at least a portion of an exhaust gas flow over the ejection tip of the reductant injector. 1an exhaust conduit configured to define a passage for exhaust gas flow therethrough, the exhaust conduit having a protuberance thereon;a reductant injector provided on the protuberance, the reductant injector positioned such that an ejection tip of the reductant injector is inclined with respect to a centerline of the exhaust conduit; and a first plate positioned parallel to the centerline of the exhaust conduit; and', 'a second plate extending from the first plate, the second plate positioned angularly with respect to the first plate,, 'a baffle assembly coupled to an inner wall of the exhaust conduit, the baffle assembly positioned upstream of the ejection tip of the reductant injector, the baffle assembly comprisingwherein at least one of the first plate and the second plate include a plurality of holes thereon and the baffle assembly is configured to deflect at least a portion of the exhaust gas flow over the ejection tip of the reductant injector.. An exhaust system comprising: The present disclosure relates to an exhaust system and more specifically to a system for controlling exhaust flow in the exhaust system.An ...

HONEYCOMB STRUCTURE

There is disclosed a honeycomb structure constituted by honeycomb segments, where a honeycomb segment has a first end and second end surfaces of a quadrangular shape; the second end surface having an area larger than that of the first one, a first pair of two side surfaces facing each other in parallel, and a second pair of two side surfaces facing each other make side surfaces become gradually narrow from the second end surface toward the first end surface, where a plurality of honeycomb segments are disposed in such a manner that the honeycomb segments are aligned to form rows in parallel in a predetermined direction, so as to make adjacent honeycomb segments directed opposite to each other in first end surfaces bonded to each other with one of side surfaces of the second pair of side surfaces. 1. A honeycomb structure in which a plurality of honeycomb segments are integrally bonded via a bonding material , each of the honeycomb segments having a first end surface , a second end surface , porous partition walls to define and form a plurality of cells extending from the first end surface to the second end surface , and an outer peripheral surface connecting the first end surface to the second end surface ,wherein as to each of the honeycomb segments other than the honeycomb segments positioned in the outermost periphery of the honeycomb structure among the plurality of honeycomb segments,the first end surface has a quadrangular shape,the second end surface has a quadrangular shape having an area larger than that of the first end surface,the outer peripheral surface comprises four side surfaces,the four side surfaces are constituted of a pair of parallel side surfaces including two side surfaces facing each other in parallel and a pair of tapered side surfaces including two side surfaces facing each other so that a space between the surfaces narrows from the side of the second end surface toward the side of the first end surface,{'b': 1', '2', '1', '2, 'when the ...

Honeycomb structure

In each honeycomb segment, a first and a second end surfaces are rectangular shapes having the same dimension, and are in a positional relation in which extending directions of long sides of the respective end surfaces are perpendicular to each other, and (X−Y)/2 is from 0.2 to 7 mm, where X is a length of each long side of each of the first and the second end surfaces, and Y is a length of each short side of each of the first and the second end surfaces. The honeycomb segment has two pairs of tapered side surfaces each of which including two side surfaces facing each other so that a distance between side surfaces becomes narrow from the first end surface toward the second end surface end, respectively.

Honeycomb structural body

A honeycomb structural body has cells surrounded by cell walls arranged in a lattice-like shape. A cross section is divided into a central section and an outer peripheral section. The outer peripheral section surrounds the central section through a boundary partition wall. The outer peripheral section is lower in a cell density than the central section. The cells contain imperfectly shaped cells in contact directly with the boundary partition wall. In the imperfectly shaped cells, first specific imperfectly shaped cells are smaller in opening area than second specific imperfectly shaped cells. Each first specific imperfectly shaped cells has an opening area of not more than a predetermined area S=(P−T) 2 /8. P and T indicate a cell pitch and a thickness of each cell wall, respectively. The opening section of the first specific imperfectly shaped cells is closed by the same raw material of the cell walls.

GASEOUS EMISSIONS TREATMENT STRUCTURES WITH ELECTROHYDRODYNAMIC HEAT AND MASS TRANSFER

A gaseous emissions treatment system has a ceramic substrate body with a plurality of cells for passage therethrough of exhaust gases. An emitter electrode for emitting free electrodes is mounted adjacent one end of the substrate body for intercepting the flowing exhaust gas. A collector electrode for collecting electrons is mounted adjacent the other end of the substrate body for intercepting the flowing exhaust gas. An energizing and control circuit is used to apply a high voltage between the emitter and collector to stimulate the generation of free electrons while avoiding electrical breakdown of the flowing exhaust gas. Molecules and particles in the flowing exhaust gas are ionized and are subjected to electrohyrdrodynamically (EHD) induced forces. The result of the EHD forces is to increase turbulence within the flowing gas which, in turn, increases mass and heat flow in the exhaust gas, thereby to increase reactivity of the gas and to increase heat transfer from the exhaust gas to walls of the ceramic substrate cells. 1. A gaseous emissions treatment component comprising a honeycomb substrate body having a plurality of cells therein for the passage of exhaust gas from an input end of the substrate body to an output end of the substrate body , an emitter electrode located at the input end of the substrate body for emitting electrons into exhaust gas flowing into the substrate body and a collector electrode located at the output end of the substrate body for collecting electrons from the exhaust gas flowing out of the substrate body , and an energizing and control circuit to generate electrons at the emitter electrode and to receive electrons at the collector electrode without exceeding the breakdown voltage of the flowing exhaust gas.2. The gaseous emissions treatment component of claim 1 , at least one of the electrodes being a metal mesh at an end of the substrate body.3. The gaseous emissions treatment component of claim 2 , the mesh having apertures claim 2 ...

HONEYCOMB CATALYTIC ASSEMBLIES AND APPLICATIONS THEREOF

In one aspect, catalytic assemblies are described herein. A catalytic assembly, in some embodiments, comprises a plurality of honeycomb catalyst segments bonded to one another by a bonding material, the honeycomb catalyst segments comprising an outer peripheral wall and a plurality of inner partition walls defining flow channels extending longitudinally through the catalyst segments, wherein the outer peripheral wall and inner partition walls have dispersed throughout a chemical composition comprising 50-99.9 weight percent an inorganic oxide composition and at least 0.1 weight percent a catalytically active metal functional group. 1. A catalytic assembly comprising:{'sup': −6', '−6, 'a plurality of honeycomb catalyst segments bonded to one another by a ceramic cement, the honeycomb catalyst segments having a coefficient of thermal expansion (CTE) of 4×10/° C. to 8×10/° C. and comprising an outer peripheral wall and a plurality of inner partition walls defining flow channels extending longitudinally through the catalyst segments, wherein the outer peripheral wall and inner partition walls have dispersed throughout a chemical composition comprising 50-99.9 weight percent titania and at least 0.1 weight percent a catalytically active metal functional group; and'}{'sup': '2', 'an outer coating surrounding axial dimensions of bonded honeycomb catalyst segments at the periphery of the catalytic assembly, wherein a peripheral honeycomb catalyst segment has a ratio of weight of the catalytic assembly to bonded area of the peripheral honeycomb catalyst segment of 0.02-0.25 Kg/cm, the catalytic assembly operable to remain suspended for a time period of 60 seconds when raised by an apparatus coupled solely to the peripheral honeycomb catalyst segment, wherein the catalytic assembly is raised subsequent to thermal cycling 500 times from 150° C. to 500° C. to 150° C., the catalytic assembly heated to 500° C. by flowing a flue gas stream through the honeycomb catalyst segments ...

METHOD FOR REMOVING NITROGEN OXIDES FROM A GAS

A method for removing nitrogen oxides NOx from a gaseous current, comprising the steps of: passing the gaseous current through a de-NOx catalytic bed with iron exchanged zeolite as a catalyst with the addition of ammonia as a reducing agent, wherein the molar ratio of NH3 over NOx is greater than 1.33. 1. A method for removing nitrogen oxides NOx from a gaseous current , the method comprising:passing the gaseous current through a de-NOx catalytic bed including a catalyst that is an iron exchanged zeolite, with an addition of ammonia as a reducing agent;{'sub': '3', 'wherein a molar ratio of NHover NOx in the gas admitted to said de-NOx catalytic bed is 1.4 to 2;'}wherein said de-NOx catalytic bed is operated at a temperature in a range of 420° C. to 435° C.; and{'sup': −1', '−1, 'wherein a space velocity in said de-NOx catalytic bed is 10000 hto 14000 h.'}2. The method according to claim 1 , wherein said molar ratio of NHover NOx is 1.4 to 1.6.3. The method according to claim 2 , wherein said molar ratio of NHover NOx is 1.5.4. The method according to claim 1 , wherein claim 1 , after the passage though said de-NOx catalytic bed claim 1 , a residual amount of NOx in the gas is not greater than 100 ppm.5. The method according to claim 1 , wherein claim 1 , after the passage though said de-NOx catalytic bed claim 1 , a residual amount of NOx in the gas is not greater than 50 ppm.6. The method according to claim 1 , wherein claim 1 , after the passage though said de-NOx catalytic bed claim 1 , a residual amount of NOx in the gas is not greater than 25 ppm.7. The method according to claim 1 , wherein the temperature at which said de-NOx catalytic bed is operated is 430° C.8. The method according to claim 1 , wherein the iron exchanged zeolite catalyst includes MFI claim 1 , BEA claim 1 , FER claim 1 , MOR claim 1 , FAU claim 1 , MEL claim 1 , or combinations thereof.9. The method according to claim 1 , wherein the iron exchanged zeolite includes an Fe-ZSM-5 type iron ...

HONEYCOMB STRUCTURE

A honeycomb structure includes a tubular bonded honeycomb segment assembly having a plurality of honeycomb segments and a bonding layer which bonds side surfaces of the plurality of honeycomb segments to each other; and a pair of electrode members disposed on a side surface of the bonded honeycomb segment assembly, a volume resistivity of each of the honeycomb segments is from 1 to 200 Ωcm, at least a part of the bonding layer is made of a bonding material having a conductivity, a volume resistivity of the bonding layer is from 2 to 2000 Ωcm, and each of the pair of electrode members is formed into a band-like shape extending in an extending direction of the cells of the bonded honeycomb segment assembly, and one electrode member is disposed on a side opposite to the other electrode member via a center of the bonded honeycomb segment assembly. 1. A honeycomb structure comprising:a tubular bonded honeycomb segment assembly having a plurality of tubular honeycomb segments having porous partition walls to define and form a plurality of cells which become through channels for a fluid and extend from one end surface to the other end surface, and also having a bonding layer which bonds side surfaces of the plurality of honeycomb segments to each other; and a pair of electrode members disposed on a side surface of the bonded honeycomb segment assembly,wherein a volume resistivity of each of the honeycomb segments of the bonded honeycomb segment assembly is from 1 to 200 Ωcm, at least a part of the bonding layer is made of a bonding material having a conductivity,a volume resistivity of the bonding layer having the conductivity is from 2 to 2000 Ωcm, andeach of the pair of electrode members is formed into a band-like shape extending in an extending direction of the cells of the bonded honeycomb segment assembly, and in a cross section perpendicular to the cell extending direction, one electrode member in the pair of electrode members is disposed on a side opposite to the ...

HONEYCOMB STRUCTURE AND MANUFACTURING METHOD OF THE SAME

A honeycomb structure includes a tubular honeycomb structure body having porous partition walls to define and form a plurality of cells, and an outer peripheral wall; and a pair of electrode sections disposed on a side surface of the honeycomb structure body, an electrical resistivity of the honeycomb structure body is from 1 to 200 Ωcm, each of the pair of electrode sections is formed into a band shape extending in an extending direction of the cells, the electrode section is constituted of a porous body in which particles made of silicon carbide as an aggregate are bound by a binding material, silicon carbide as the aggregate constituting the electrode sections contains β-SiC having a stacking fault of 2% or less, and the binding material constituting the electrode sections contains silicon and a metal silicide. 1. A honeycomb structure comprising:a tubular honeycomb structure body having porous partition walls to define and form a plurality of cells as through channels of a fluid which extend from a first end surface as one end surface to a second end surface as the other end surface, and an outer peripheral wall positioned on the outermost periphery; anda pair of electrode sections disposed on a side surface of the honeycomb structure body,wherein an electrical resistivity of the honeycomb structure body is from 1 to 200 Ωcm,each of the pair of electrode sections is formed into a band shape extending in an extending direction of the cells of the honeycomb structure body,in a cross section perpendicular to the extending direction of the cells, the one electrode section in the pair of electrode sections is disposed on a side opposite to the other electrode section in the pair of electrode sections via the center of the honeycomb structure body,the electrode section comprises a porous body in which particles made of silicon carbide as an aggregate are bound by a binding material,silicon carbide as the aggregate constituting the electrode section contains β-SiC ...

Honeycomb structure

A honeycomb structure having a quadrangular or triangular cross-sectional shape of cells and having specific open cells in which open changing portions are present only in a range of 20 mm or less from the first end face, and the open changing portion satisfies relations of 1≦|(1−(D 1 /D 2 ))×100|≦80 and 1≦|(1−(D 3 /D 2 ))×100|≦80. D 1 indicates a diameter of an inscribed circle which comes in contact with a peripheral edge of the open end of the cell in the first end face. D 2 indicates a diameter of the inscribed circle which comes in contact with the peripheral edge of the open end of the cell in the second end face. D 3 indicates a diameter of an inscribed circle which comes in contact with a peripheral edge of the cell in a cross section perpendicular to a direction from the first end face toward the second end face.

Catalyst Unit, Method For Producing The Same, And Exhaust Gas Catalyst

A catalyst unit for an exhaust gas catalyst, having a ceramic catalyst body, and a metallic housing which encloses the catalyst body at least in some sections perpendicular to a gas throughflow direction. At least one bearing mat positioned between the catalyst body and the housing perpendicular to the throughflow direction. The catalyst body is retained in the housing via a force-closed press fit with the intermediate arrangement of the or each bearing mat such that, when seen in the throughflow direction of the catalyst body, the press fit between the housing and the catalyst body is formed exclusively at defined axial positions, the housing having groove-like depressions at the defined axial positions for reducing in some sections the inner cross-section of the housing, and the press fit between the housing and the catalyst body being formed exclusively in the region of the groove-like depressions. 111.-. (canceled)12. A catalyst unit for an exhaust gas catalytic converter , comprising:a ceramic catalyst body through which exhaust gas flows;a metallic housing, which seen perpendicularly to a through-flow direction of the ceramic catalyst body surrounds the ceramic catalyst body at least in some sections;at least one bearing mat positioned between the ceramic catalyst body and the metallic housing viewed perpendicularly with respect to the through-flow direction of the ceramic catalyst body;wherein the at least one bearing mat is held via a press fit in a force-fit manner in the metallic housing such that seen in the through-flow direction of the ceramic catalyst body the press fit between the metallic housing and the ceramic catalyst body is exclusively formed in defined axial positions,wherein the metallic housing, in the defined axial positions, comprises groove-like recesses for reducing in some sections an inner cross section of the metallic housing and wherein the press fit between the metallic housing and the ceramic catalyst body is exclusively formed in a ...

EXHAUST SYSTEM COMPONENT INCLUDING A SELF-HEALING CERAMIC MATERIAL AND INTERNAL COMBUSTION ENGINE EQUIPPED WITH THE COMPONENT

An object of the present invention is to provide an exhaust system component having excellent properties to be located in an exhaust flow path from an internal combustion engine, particularly, an exhaust system component having an extended use-life. The exhaust system component of the present invention for an internal combustion engine has a self-healing ceramic material and an electric heater for heating the self-healing ceramic material. In particular, the exhaust system component of the present invention is an oxygen sensor having a detection element and an electric heater, wherein the detection element has a solid electrolyte layer, a reference-side electrode layer, an exhaust-side electrode layer, and a diffusion layer and/or a trap layer each composed of a self-healing ceramic material. 1. A method for controlling an internal combustion engine having an exhaust system component and a combustion chamber ,wherein the exhaust system component comprisesa self-healing ceramic material, andan electric heater for heating the self-healing ceramic material and wherein the method comprises heating the self-healing ceramic material by the electric heater when combustion is not performed in the combustion chamber.2. The method according to claim 1 , wherein electric current flow and/or gas diffusion takes place through the self-healing ceramic material.3. The method according to claim 2 , wherein the exhaust system component is an oxygen sensor having the following configuration:(a) an oxygen-conducting solid electrolyte layer,(b) a reference-side electrode layer disposed on the reference-side surface of the solid electrolyte layer,(c) an exhaust-side electrode layer disposed on the exhaust-side surface of the solid electrolyte layer,(d) a diffusion layer and/or a trap layer, disposed on the exhaust-side electrode layer to allow for diffusion and flowing of the exhaust and composed of the self-healing ceramic material, and(e) the electric heater disposed on the reference ...

EXHAUST GAS PURIFICATION CATALYST DEVICE AND EXHAUST GAS PURIFICATION METHOD

A device includes a first catalyst including a Pd-containing catalyst layer and a Rh-containing catalyst layer and a second catalyst containing Pt-loaded alumina and containing neither Rh nor Pd. The first catalyst or the second catalyst are disposed in one place in such a manner that one of the first catalyst or the second catalyst is located upstream of the other in a flow direction of an exhaust gas from an engine 1. An exhaust gas purification catalyst device for purifying saturated hydrocarbon and unsaturated hydrocarbon included in an exhaust gas from an engine configured to operate with selective switching between a spark ignition combustion mode and an homogeneous charge compression ignition combustion mode , the exhaust gas purification catalyst device comprising:a first catalyst including a Pd-containing catalyst layer and a Rh-containing catalyst layer; anda second catalyst containing Pt-loaded alumina and containing neither Rh nor Pd, whereinthe first catalyst or the second catalyst are disposed in one place in such a manner that the first catalyst is located upstream of the second catalyst in a flow direction of the exhaust gas.2. (canceled)3. The exhaust gas purification catalyst device of claim 1 , whereinthe first catalyst shows activity to purification of the unsaturated hydrocarbon at a temperature lower than the second catalyst, andthe second catalyst shows activity to purification of the saturated hydrocarbon at a temperature lower than the first catalyst.4. The exhaust gas purification catalyst device of claim 1 , whereinthe first catalyst includes a honeycomb substrate supporting the Pd-containing catalyst layer and the Rh-containing catalyst layer,the second catalyst includes a honeycomb substrate supporting the Pt-loaded alumina, andthe honeycomb substrate of the second catalyst has a thermal capacity smaller than a thermal capacity of the honeycomb substrate of the first catalyst.5. The exhaust gas purification catalyst device of claim 1 , ...

SUPPORTING STRUCTURE, DEVICE FOR TREATING EXHAUST GASES, AND METHOD FOR THE PRODUCTION THEREOF

Supporting structure having a first side surface and a second, opposite side surface, wherein the supporting structure has an electrical insulation which prevents an electrical current flow from the first side surface to the second side surface; wherein, furthermore, the supporting structure comprises at least one web which bridges or encloses a cross-sectional area, and wherein the supporting structure has a plurality of first pins and second pins which extend on both sides of the cross-sectional area. 1. A supporting structure , comprising:a first side surface;a second side surface, oppositely situated relative to the first side surface;an electrical insulator which prevents an electrical current flow from passing from the first side surface to the second side surface;at least one web which spans a cross-sectional area, such that the web is substantially parallel to the first side surface and the second side surface; anda plurality of first pins and a plurality of second pins, which extend to both sides of the cross-sectional area.2. The supporting structure as claimed in patent claim 1 , further comprising:an outer frame part, the outer frame part being part of the at least one web; anda second web connected to the outer frame part;wherein the second web extends inward from the outer frame part.3. The supporting structure of claim 1 , wherein at least a portion of the second pins are movable relative to a portion of the first pins.4. The supporting structure of claim 1 , wherein the at least one web is of a variable length.5. The supporting structure of claim 1 , each of the plurality of first pins and the plurality of second pins further comprising:an elongate body having two mutually oppositely situated tip regions;a pin insulator connected to the elongate body; anda metal layer formed on the outside of at least one of the tip regions;wherein the metal layer is connected to a cavity of a honeycomb body.6. The supporting structure of claim 5 , the pin insulator ...

RETENTION OF WIRES IN AN INDUCTION HEATED GASEOUS EMISSIONS TREATMENT UNIT

Techniques are disclosed to aid fixing of an elongate wire within an elongate, linear cell of a honeycomb ceramic substrate unit for a gaseous emissions treatment assembly. In one method, the wire is formed with a resiliently flexible element, and inserted into the cell, the insertion act causing the resiliently flexible element to flex and to cause a part of the element to bear against a wall of the cell and so provide frictional retention of the wire in the cell. In another, method, an adhesive is used either on the outside of the wire or the inside of the cell. In another method, the wire is scored at spaced intervals along its length to provide relief spaces for linear expansion of the wire to reduce stress at its interface with cell walls. 1. A gaseous emissions treatment assembly comprising a honeycomb ceramic substrate body having a plurality of linear cells for the passage of emissions gas , a metal wire located in one of the cells , the cell having a cross-sectional area shape generally matching the cross-sectional area shape of the wire and being marginally greater in area than the cross-sectional area of the wire , the wire formed with a resiliently flexible element , the resiliently flexible element flexed from a rest condition whereby a part of the wire bears against an interior wall of the cell , thereby to provide frictional retention of the wire in the cell.2. The assembly of claim 1 , wherein the resiliently flexible element is a bow form extending along at least a part of the wire.3. The assembly of claim 1 , wherein the resiliently flexible element is a crimp in a part of the wire.4. The assembly of claim 1 , wherein the resiliently flexible element is an axial twist in wire stock from which the wire is formed.5. A method of fixing an elongate wire within an elongate claim 1 , linear cell of a honeycomb ceramic substrate unit for a gaseous emissions treatment assembly claim 1 , the cell having a cross-sectional area shape generally matching the ...

Method For Producing A Honeycomb Body

A method for producing a honeycomb body having a housing and a honeycomb structure with a multiplicity of channels includes: providing a smooth metal sheet, forming a structure into regions of the smooth metal sheet, the structure in one longitudinal portion is formed differently than a structure in a second longitudinal portion of the metal sheet, forming the honeycomb structure by arranging and winding the structured metal sheet, such that a first cell density in an inner radial zone is increased in relation to a second cell density in an outer radial zone, inserting the honeycomb structure into the housing and, connecting the honeycomb structure to the housing. 110.-. (canceled)11. A method for producing a honeycomb body for exhaust-gas aftertreatment , comprising:providing at least one smooth metal sheet;forming structures into at least partial regions of the at least one smooth metal sheet, wherein a first structure in at least one first longitudinal portion of the metal sheet is formed differently than a second structure in at least one second longitudinal portion of the metal sheet;forming a honeycomb structure with a multiplicity of channels by arranging and winding the at least one partially structured metal sheet, wherein the metal sheet is arranged and wound such that a cross section of the honeycomb structure has a first cell density in an inner radial zone that is increased in relation to a second cell density in an outer radial zone;inserting the honeycomb structure into a housing; andconnecting the honeycomb structure to the housing.12. The method as claimed in claim 11 , wherein the forming of the structures comprises:forming a primary structure in the at least one first longitudinal portion and in the at least one second longitudinal portion of the metal sheet; andforming a secondary structure in the at least one first longitudinal portion of the metal sheet.13. The method as claimed in claim 11 , wherein the forming of the structures comprises: ...

PROCESS FOR REMOVING NITROGEN OXIDES FROM GAS USING MICROWAVE CATALYTIC REACTION BY MICROWAVE CATALYSIS

A method for removing nitrogen-oxides by microwave assisted catalysis, including: 1) charging a catalyst capable of absorbing and interacting with microwave into a reaction tube of a reactor device, to form a reaction bed; and 2) heating the reaction bed by microwaves; when a temperature of the reaction bed is raised to 100-600° C., passing a gas containing nitrogen-oxides through the reaction bed, and performing a gas-solid reaction between the gas and the catalyst to remove the nitrogen-oxides from the gas. 1. A method for removing nitrogen-oxides from a gas , the method comprising:1) charging a catalyst capable of absorbing microwaves into a reaction tube of a reactor, to form a reaction bed; and2) heating the reaction bed by microwaves; when a temperature of the reaction bed is raised to 100-600° C., passing a gas containing nitrogen-oxides through the reaction bed, and performing a gas-solid reaction between the gas and the catalyst to remove the nitrogen-oxides from the gas.2. The method of claim 1 , wherein the catalyst capable of absorbing microwaves comprises:i) an active composition selected from the group consisting of metal, metal-oxide, a mixture of metal and metal-oxide, and activated carbon;ii) a microwave absorbing composition selected from the group consisting of CuO, ferrite spinel, and activated carbon; andiii) a carrier.3. The method of claim 2 , wherein the metal is selected from the group consisting of Cu claim 2 , Mn claim 2 , Ce claim 2 , Ti claim 2 , V claim 2 , Zr claim 2 , Mg claim 2 , and Fe; and the metal-oxide is selected from the group consisting of oxides of Cu claim 2 , Mn claim 2 , Ce claim 2 , Ti claim 2 , V claim 2 , Zr claim 2 , Mg claim 2 , and Fe.4. The method of claim 2 , wherein the carrier is selected from the group consisting of activated carbon claim 2 , a molecular sieve claim 2 , and a mixture thereof.5. The method of claim 4 , wherein the molecular sieve is selected from the group consisting of ZSM molecular sieve claim ...

Improvements in nanoparticle counting

An improved instrument for counting nanoparticles suspended in a gas, particularly in a combustion gas, incorporates a counter device such as a Condensation Particle Counter, incorporates a pre-treatment stage to remove substances which can cause nucleation and false results, comprising a flow through monolith carrying an oxidation catalyst and an absorber, wherein the monolith has a call density of no more than 400 cells per square inch and an open area of at least 80%.

Electrically heated catalyst

In an EHC, a ratio of a heat capacity of the second catalyst body with respect to a heat capacity of the first catalyst body is made within a range of 0.67-1.5. A ratio of an amount of coat of an OSC material in the second catalyst body with respect to an amount of coat of an OSC material in the first catalyst body is made larger than the ratio of the heat capacity of the second catalyst body with respect to the heat capacity of the first catalyst body. A ratio of an amount of support of a noble metal in the second catalyst body with respect to an amount of support of a noble metal in the first catalyst body is made smaller than the ratio of the heat capacity of the second catalyst body with respect to the heat capacity of the first catalyst body.