СПОСОБ ПРЕВРАЩЕНИЯ ОЛЕФИНА ИЛИ СПИРТА И СПОСОБ ПОЛУЧЕНИЯ ПРОПИЛЕНА ИЛИ АРОМАТИЧЕСКОГО СОЕДИНЕНИЯ

Изобретение относится к способу превращения олефина или спирта и способу получения пропилена или ароматического соединения. Способ превращения олефина или спирта включает этап предварительной обработки, в котором получают проводящий катализатор путем загрузки реактора с псевдоожиженным слоем непроводящим катализатором, содержащим цеолит и/или оксид кремния, и подачи нагретого углеводородного газа в реактор с псевдоожиженным слоем для осаждения углеродистого кокса и нанесения на непроводящий катализатор, и этап превращения олефина или спирта с помощью реакции в псевдоожиженном слое, в котором используют данный проводящий катализатор, где скорость подачи газа составляет 0,40 м/с или менее на стадии предварительной обработки в виде скорости потока газа в реакторе с псевдоожиженным слоем, и скорость подачи газа составляет 0,5 м/с или более на стадии превращения олефина или спирта в виде скорости потока газа в реакторе с псевдоожиженным слоем. Изобретение обеспечивает подавление электростатического ...

СПОСОБ ПОЛУЧЕНИЯ ЭТИЛЕНА И ПРОПИЛЕНА

Изобретение относится к способу получения этилена и пропилена с использованием исходного материала, имеющего высокую концентрацию диолефинов, путем контактирования углеводородного вещества, которое включает, по меньшей мере, один олефин, содержащий от 4 до 12 атомов углерода, в количестве, которое составляет, по крайней мере, 20 мас.%, и где углеводородное вещество включает, по меньшей мере, одно диолефиновое соединение, содержащее от 3 до 12 атомов углерода, в количестве от 1,26 до 2,5 мас.% в расчете на массу углеводородного вещества, с цеолитсодержащим формованным катализатором в реакторе, для каталитической конверсии, по меньшей мере, одного олефина, содержащего от 4 до 12 атомов углерода, где цеолит в цеолитсодержащем формованном катализаторе удовлетворяет следующим требованиям: (1) цеолит представляет собой цеолит с промежуточным размером пор, и размер его пор составляет от 5 до 6,5 ангстрем; (2) количество протонов в цеолите составляет 0,02 ммол или меньше на грамм цеолита; (3) цеолит ...

АЛЮМОСИЛИКАТНЫЙ ЦЕОЛИТ, СОДЕРЖАЩИЙ ПЕРЕХОДНЫЙ МЕТАЛЛ

Изобретение относится к каталитической системе очистки выхлопных газов. Предложен синтетический алюмосиликатный цеолитный катализатор, содержащий медь в качестве каталитически активного компонента. Катализатор содержит алюмосиликатный цеолит типа шабазит. Максимальный размер кольца цеолита составляет восемь тетраэдрических атомов. Средний размер кристаллитов цеолита, определенный сканирующей электронной микроскопией, составляет более 0,50 микрометра. Изобретение обеспечивает повышенную селективность восстановления оксидов азота в выхлопных газах двигателей внутреннего сгорания. 3 н. и 14 з.п. ф-лы, 2 табл., 4 пр.

Способ приготовления и регенерации катализатора гидроксилирования ароматических соединений закисью азота и способ гидроксилирования ароматических соединений

Изобретение касается способа приготовления и регенерации цеолитных катализаторов после их дезактивации в результате закоксовывания в реакциях гидроксилирования ароматических соединений закисью азота в газовой фазе, в частности в реакциях гидроксилирования бензола и фенола. Описан способ приготовления катализатора гидроксилирования ароматических соединений закисью азота, представляющего собой железосодержащий цеолит структуры MFI и/или MEL со связующим, модифицированный соединениями рутения в количестве 0,01-5,0 мас. % в расчете на металл, растворимое соединение рутения вводят на стадии формования цеолита со связующим, или после формования и прокаливания, или после формования, прокаливания и термопаровой обработки. Катализатор регенерируют при температуре 450-475°С в среде инертного газа, содержащего от 1 до 2 мас. % кислорода. Технический результат - максимальная активность и селективность катализатора. 3 н. и 4 з.п. ф-лы, 1 табл., 11 пр.

КАТАЛИЗАТОРЫ ГИДРИРОВАНИЯ СО СВЯЗУЮЩИМИ, ИМЕЮЩИМИ НИЗКУЮ ПЛОЩАДЬ ПОВЕРХНОСТИ

Предложены варианты катализаторов депарафинизации углеводородного сырья. Катализаторы депарафинизации включают цеолит, имеющий отношение диоксида кремния к оксиду алюминия 100 или менее, в сочетании со связующим из оксида металла или алюмосиликата. Связующее перед формовкой катализатора имеет площадь поверхности 80 м/г или менее. Нанесенный катализатор имеет отношение площади поверхности цеолита к внешней площади поверхности по меньшей мере 80:100. В одном из вариантов используют цеолит, имеющий поры, образованные 10-членными кольцами. Изобретение обеспечивает катализаторы с высокой активностью для деперафинизации сырья с повышенным содержанием серы и азота. 2 н. и 14 з.п. ф-лы, 5 ил. 1 табл., 8 пр.

КАТАЛИЗАТОР ДЕГИДРИРОВАНИЯ СЖИЖЕННЫХ УГЛЕВОДОРОДНЫХ ГАЗОВ, СПОСОБ ЕГО ПОЛУЧЕНИЯ И ПРИМЕНЕНИЯ

Изобретение относится к разработке способов и катализаторов дегидрирования алифатических углеводородов с целью получения олефиновых углеводородов. Описан способ получения катализатора на основе цеолита для дегидрирования сжиженных углеводородных газов, характеризующийся тем, что нанесение активного компонента и промотора проводится на цеолитный носитель со структурой типа ВЕА с исходным соотношением SiO/AlOот 25 до 300, который модифицируют путем многократного повтора процесса деалюминирования с использованием азотной кислоты до соотношения SiO/AlOболее 600. Описан катализатор, содержащий активный дегидрирующий компонент - платину (0,2-0,8 мас. %) - и промотор - олово (0,2-0,8 мас. %), которые нанесены на деалюминированный цеолит структурного типа BEA с отношением SiO/AlOболее 600. Описан способ получения олефиновых углеводородов путем контактирования сжиженных углеводородных газов на предложенном катализаторе в непрерывном потоке сжиженных углеводородных газов в реакторе через неподвижный ...

КАТАЛИЗАТОР ДЛЯ ПРЕОБРАЗОВАНИЯ УГЛЕВОДОРОДОВ И СПОСОБ ПОЛУЧЕНИЯ НИЗШИХ ОЛЕФИНОВ И МОНОЦИКЛИЧЕСКИХ АРОМАТИЧЕСКИХ УГЛЕВОДОРОДОВ

Катализатор для преобразования углеводородов содержит цеолит с содержанием протонов 0,02 ммоль/г цеолита или менее, при соотношении SiO2 к Аl2О3 20 -500, диаметре пор 5-6,5 Катализатор устойчив при 550-750oС, что способствует получению олефинов, содержащих этилен в качестве основного компонента, и моноциклических ароматических углеводородов при хорошем соотношении и высоком выходе. 3 с. и 4 з.п. ф-лы, 10 табл.

СПОСОБЫ ПОЛУЧЕНИЯ КРИСТАЛЛИЧЕСКОГО ЦЕОЛИТА

Описан способ получения кристаллического цеолита из реакционной смеси, содержащей количество воды, достаточное только для того, чтобы, при желании, реакционной смеси можно было бы придать определенную форму. По данному способу реакционную смесь нагревают в условиях кристаллизации и в отсутствие внешней жидкой фазы, так что перед высушиванием кристаллов нет необходимости в удалении избыточной жидкости из закристаллизованного материала. Способ позволяет сократить количество воды для кристаллизации и получить формованные цеолиты без добавления связующего. 2 с. и 40 з.п.ф-лы.

КАТАЛИЗАТОР ДЛЯ ГИДРОКРЕКИНГА УГЛЕВОДОРОДОВ И СПОСОБ ГИДРОКРЕКИНГА УГЛЕВОДОРОДОВ

Использование: в нефтепереработке, в частности в производстве катализаторов для гидрокрекинга. Сущность изобретения: катализатор содержит компонент гидрогенизации на основе благородного металла 0,25 - 0,42 мас. %, 10,0 - 60 мас. % цеолитового компонента - цеолита типа Y с силикатным модулем свыше 4, 5, имеющий средний размер кристаллов меньше 0,5 мк и содержит менее 0,5 мас. % оксида натрия и 8,5 - 15,6 мас. % оксометаллических катионов редкоземельных элементов, расположенных в бетаположениях цеолита типа Y, и неорганический оксидный компонент - оксид алюминия, оксид кремния, оксид магния, оксид циркония, оксид бериллия, оксид титана или их смесь - остальное. В качестве компонента для гидрогенизации предпочтительно используют палладий, платину, рутений, родий, осмий, иридий. Способ гидрокрекинга углеводородов осуществляют контактированием углеводородов с водородом в присутствии катализатора описанного состава. 2 с. и 7 з. п., 5 табл.

КОМПОЗИТЫ КАТАЛИЗАТОРОВ ОКИСЛЕНИЯ ДИЗЕЛЬНОГО ТОПЛИВА

... 1. Композит катализатора окисления для снижения выбросов отработавшего газа двигателя, работающего на обедненных смесях, содержащий:подложку носителя, которая имеет протяженность, входной конец и выходной конец, каталитический материал катализатора окисления на подложке, при этом каталитический материал катализатора окисления включает нижний слой покрытия из пористого оксида и верхний слой покрытия из пористого оксида;при этом нижний слой покрытия из пористого оксида включает подложку из тугоплавкого оксида металла, платиновый (Pt) компонент и палладиевый (Pd) компонент в массовом соотношении Pt к Pd в диапазоне, который составляет приблизительно 4:1-1:4; иверхний слой покрытия из пористого оксида включает цеолит, Pt и подложку из тугоплавкого оксида металла, верхний слой покрытия из пористого оксида в основном не содержит палладий, при этом композит катализатора окисления является эффективным для уменьшения углеводорода и монооксида углерода, и окисляет NO до NOв выхлопных газах двигателя ...

КАТАЛИЗАТОР ОКИСЛЕНИЯ ДЛЯ ОБРАБОТКИ ВЫХЛОПНЫХ ГАЗОВ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

Изобретение относится к катализирующей монолитной основе, содержащей окислительный катализатор на монолитной основе для применения при обработке выхлопных газов, выпускаемых из двигателя внутреннего сгорания, работающего на обедненных топливных смесях. Данная катализирующая монолитная основа содержит первое покрытие из пористого оксида, имеющее длину L, и второе покрытие из пористого оксида, где второе покрытие из пористого оксида расположено в виде слоя поверх первого покрытия из пористого оксида на протяжении по меньшей мере части длины L, где первое покрытие из пористого оксида включает композицию катализатора, содержащую платину, и по меньшей мере один материал-носитель для платины, где второе покрытие из пористого оксида включает композицию катализатора, содержащую как платину, так и палладий, и по меньшей мере один материал-носитель для платины и палладия, и где массовое отношение платины к палладию во втором покрытии из пористого оксида составляет <2, причем массовое отношение Pt ...

КИСЛОТНЫЙ КАТАЛИЗАТОР АРОМАТИЗАЦИИ С УЛУЧШЕННОЙ АКТИВНОСТЬЮ И СТАБИЛЬНОСТЬЮ

Настоящее изобретение относится к способам получения катализаторов на носителе и, в частности, касается получения катализаторов ароматизации на носителе, содержащих переходной металл и связанное цеолитное основание, с использованием стадии пропитки катализатора, на которой присутствуют высокие загрузки хлора. Описан катализатор на носителе для риформинга углеводородного сырья содержит: связанное цеолитное основание; от 0,3 мас.% до 3 мас.% платины; от 1,8 мас.% до 4 мас.% хлора; и от 0,4 мас.% до 1,5 мас.% фтора, из расчета на общую массу катализатора на носителе; где катализатор на носителе характеризуется пиковой температурой восстановления на кривой температурно-программируемого восстановления (ТПВ) в диапазоне от 580°F до 800°F, где связанное цеолитное основание содержит K/L-цеолит и связующе на основе кремнезема. Способ риформинга углеводородного сырья включает приведение в контакт углеводородного сырья с катализатором ароматизации на носителе в условиях риформинга в реакторной системе ...

ГЕТЕРОГЕННЫЙ КАТАЛИЗАТОР ОКИСЛЕНИЯ ПАРА-КСИЛОЛА ДО ТЕРЕФТАЛЕВОЙ КИСЛОТЫ

Изобретение относится к гетерогенному катализатору окисления пара-ксилола до терефталевой кислоты, состоящий из носителя, содержащего, % масс.: упорядоченный мезопористый оксид кремния типа МСМ-41 20,0-70,0; алюмосиликатные нанотрубки 30,0-80,0, и оксида металла, выбранного из ряда, включающего Mn, Со, Fe, Cu, Pd или их смесь, нанесенного на носитель в количестве 0,5-15,0% от массы катализатора, причем указанный носитель представляет собой единый структурированный композитный материал. Использование: нефтеперерабатывающая и нефтехимическая отрасли промышленности. Достигаемый технический результат заключается в повышении селективности по целевой терефталевой кислоте за счет сформированной системы пор и каналов наноструктурированного композитного носителя, обеспечивающего при окислении молекулярно-ситовой эффект благодаря бимодальному распределению пор по размерам. Высокая удельная площадь поверхности описываемого катализатора и, как следствие, увеличение площади контакта молекул сырья с ...

АЛЮМОСИЛИКАТНЫЙ ЦЕОЛИТ, СОДЕРЖАЩИЙ ПЕРЕХОДНЫЙ МЕТАЛЛ

... 1. Синтетический алюмосиликатный цеолитный катализатор, содержащий, по меньшей мере, один каталитически активный переходный металл, выбранный из группы, состоящей из Cu, Fe, Hf, La, Au, In, V, лантаноидов и переходных металлов VIII группы, который представляет собой алюмосиликатный цеолит с небольшими порами, имеющий максимальный размером кольца, составляющий восемь тетраэдрических атомов, причем средний размер кристаллитов алюмосиликатного цеолита, определенный сканирующей электронной микроскопией, составляет >0,50 мкм.2. Алюмосиликатный цеолитный катализатор по п.1, в котором, по меньшей мере, один каталитически активный переходный металл представляет собой медь, железо или медь и железо.3. Алюмосиликатный цеолитный катализатор по п.1 или 2, в котором, по меньшей мере, один каталитически активный переходный металл является медью.4. Алюмосиликатный цеолитный катализатор по п.1, в котором средний размер кристаллитов составляет >1,00 мкм.5. Алюмосиликатный цеолитный катализатор по п.1, в ...

КАТАЛИЗАТОР ИЗОМЕРИЗАЦИИ АРОМАТИЧЕСКИХ УГЛЕВОДОРОДОВ И СПОСОБ ЕГО ПРИМЕНЕНИЯ

... 1. Ионообменный катализатор изомеризации ксилола, содержащий: ! 1) от 1 до 99 мас.%, по меньшей мере, одного цеолита, выбранного из MFI, MEL, EUO, FER, MFS, МТТ, MTW, TON, MOR, и FAU; ! 2) от 1 до 99 мас.%, связующего вещества, содержащего фосфат алюминия; и ! 3) не больше чем 350 мас. ppm, благородного металла в расчете на массу катализатора, в котором катализатор имеет отношение (площадь CO)/(мас.% благородного металла) не больше чем 0,10. ! 2. Ионообменный катализатор изомеризации ксилола по п.1, в котором катализатор содержит от 150 до 350 мас. ppm благородного металла. ! 3. Ионообменный катализатор изомеризации ксилола по п.1, в котором благородный металл содержит платину. ! 4. Ионообменный катализатор изомеризации ксилола по п.1, в котором катализатор содержит: ! от 10 до 90 мас.%, связующего вещества; и ! от 10 до 90 мас.%, цеолита ! 5. Ионообменный катализатор изомеризации ксилола по п.1, в котором катализатор имеет отношение (площадь CO)/(мас.% благородного металла) от 0,05 до ...

ВЫСОКОКРЕМНЕЗЕМНЫЙ ЦЕОЛИТ AEI

ВЫХЛОПНАЯ СИСТЕМА С МОДИФИЦИРОВАННОЙ ЛОВУШКОЙ NOX В УСЛОВИЯХ ОБЕДНЕННОЙ СМЕСИ

КАТАЛИЗАТОР ДЛЯ ХОЛОДНОГО ПУСКА И ЕГО ПРИМЕНЕНИЕ В ВЫХЛОПНЫХ СИСТЕМАХ

... 1. Катализатор для холодного пуска, содержащий: (1) цеолитовый катализатор, содержащий неблагородный металл, благородный металл, и цеолит; и (2) катализатор с нанесенным металлом платиновой группы, содержащий один или несколько металлов платиновой группы и один или несколько носителей из неорганических оксидов.2. Катализатор для холодного пуска по п. 1, в котором неблагородный металл выбран из группы, состоящей из железа, меди, марганца, хрома, кобальта, никеля, олова и их смесей.3. Катализатор для холодного пуска по п. 1, в котором неблагородным металлом является железо.4. Катализатор для холодного пуска по п. 1, в котором благородный металл выбран из группы, состоящей из платины, палладия, родия и их смесей.5. Катализатор для холодного пуска по п. 1, в котором благородным металлом является палладий.6. Катализатор для холодного пуска по п. 1, в котором цеолит выбран из группы, состоящей из бета-цеолита, фожазита, L-цеолита, ZSM-цеолита, SSZ-цеолита, морденита, шабазита, оффретита, эрионита ...

КАТАЛИЗАТОР СКВ, ДОПУСКАЮЩИЙ ПЕРЕДОЗИРОВКУ NH3

Katalysator und Verfahren zur Herstellung von monozyklischen Aromaten

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.

Durch Zeolith unterstützter, auf Silber basierender Katalysator zur Speicherung von NOx

Ein Nachbehandlungssystem verwendet chemische Reaktionen, um einen Abgasfluss zu behandeln. Eine Vorrichtung zur Verwendung innerhalb eines Nachbehandlungssystems schließt einen auf Silber basierenden NOx-Speicherkatalysator und einen Zeolithen ein. Der auf Silber basierende NOx-Speicherkatalysator und der Zeolith speichern NOx während einer Niedertemperatur-Betriebsanlaufperiode. In einer Ausführung schließt der Zeolith einen Barium-Y-Zeolithen ein.

METHOD OF REFORMING HYDROCARBONS

Activity maintenance of hydrocracking catalyst

Crystalline alumino-silicate zeolites having pore openings between 6 and 15 and containing less than 10% Na2O which support Pt, Pd, Os, Ir, Rh or Ru metals or compounds thereof are reactivated by contact with hydrogen at elevated temperatures, i.e. 600-1000 DEG F. Additionally the zeolities may contain Co, Ni, Zn, Mg, Ca, Cd, Cu or Ba.

Cold start catalyst and its use in exhaust systems

Passive NOx adsorber

Oxidation catalyst for a diesel engine exhaust

PREPARATION AND USE OF METAL-CONTAINING ZEOLITIC CATALYSTS

PROCESS FOR PRODUCING HIGH VISCOSITY INDEX LUBRICATING OIL

... 1311431 Lubricating oils ATLANTIC RICHFIELD CO 6 Jan 1971 [26 Jan 1970] 701/71 Heading C5E Lubricating oils are produced by (a) contacting a deasphalted mineral lubricating oil fraction, containing at least 0À3% sulphur and at least 1000 ppm. nitrogen and derived from a waxy crude oil, with hydrogen in the presence of a sulphur-resistant hydrogenation catalyst at 600-800‹ F. and (b) contacting the effluent oil with hydrogen at 500-800‹ F. in the presence of a hydrogenation-hydrocracking catalyst, comprising a major amount of an at least 50% hydrogen- or rare-earth-exchanged crystalline aluminosilicate having pores of diameter 8-15Š and a silica to alumina mole ratio greater than 3 : 1 and a minor amount of a platinium group metal, to give a maximum of 50% conversion of the oil to materials boiling below 550‹ F. The sulphur-resistant catalyst can contain Sn, V, Cr, Mo, W, Fe, Co and/or Ni as such or as the oxides or sulphides, e.g. oxides or sulphides of Ni or Co together with Mo, W or Cr ...

CATALYTIC HYDROCRACKING OF HYDROCARBONS

... 1376333 Hydrocarbon hydrocracking catalysts NIPPON OIL CO Ltd 12 Nov 1971 [14 Nov 1970] 52779/71 Heading B1E [Also in Divisions Cl and C5] Hydrocarbon is hydrocracked in the presence, as catalyst, of halogen-containing crystalline aluminosilicate zeolite having a pore size of from 5 to 15 Angstroms and containing, per 100 parts by weight of zeolite, from 0.1 to 20 parts by weight of Group VIII noble metal, the halogen having been incorporated in the zeolite by a procedure wherein the zeolite is contacted, under non-reductive conditions at a temperature of from 0 to 400‹C, with at least one partially or wholly halogenated hydrocarbon the halogen of which is fluorine and/or chlorine to provide zeolitic material having a halogen content of from 0.05 to 15 weight per cent. The zeolite preferably has a mordenitic or faujasitic structure and may be in the hydrogen or decationised form or in a metal cationised form containing divalent or higher valent metal ions, for example ions of metal selected ...

Three-way catalyst and its use in exhaust systems

A three-way catalyst comprising a silver-containing extruded molecular sieve having disposed or coated thereon [a] a palladium component comprising palladium and a ceria-zirconia-alumina mixed or composite oxide, and [b] a rhodium component comprising rhodium and a zirconia-containing material. The silver-containing extruded molecular sieve is a flow-through substrate, such as a filter substrate. Also disclosed is an exhaust system for internal combustion engines comprising the three-way catalyst and a method for treating an exhaust gas using the three-way catalyst. The three-way catalyst results in improved hydrocarbon storage and conversion, in particular during the cold start period.

Molecular sieve catalyst suitable for hydrocarbon conversion processes

A hydrocarbon conversion catalyst of uniform pore size 6-15 is prepared by heating a mixture of solutions of sodium silicate and aluminate to obtain precipitated sodium aluminosilicate, base-exchanging with an ammonium compound and calcining the product to obtain the hydrogen form of the crystal which is then impregnated with a metal compound of the platinum group or with an oxide of Mo, Cr, W, V, Ni, Cu or Co or a mixture thereof; the proportions of the starting materials are such that the silica/alumina ratio in the final molecular sieve support is in the range 2,2-10:1 and the Na content is not more than 10% (calculated as Na2O). Specification 824,543 is referred to.

Passive NOx adsorber

IMPROVEMENT OF THE YIELD OF WAX ISOMERATEN BY PRETREATMENT OF THE CATALYST WITH OXYGEN-CONTAINING CONNECTIONS

CATALYST FOR THE IMPROVEMENT OF THE YIELD OF WAX ISOMERATEN BY PRETREATMENT WITH OXYGEN-CONTAINING CONNECTIONS

CATALYST FOR THE CLEANING OF THE EXHAUST GASES FROM DIESEL ENGINES AND PROCEDURES TO ITS PRODUCTION

CATALYST FOR THE CLEANING OF THE EXHAUST GASES OF A DIESEL ENGINE

Procedure for the production of Penicillinen and their pharmaceutical usable salts

DIESEL ENGINE WASTE GAS CATALYST AND USE METHOD

PREPARATION OF CRYSTALLINE ALUMINOSILICATES

Antibacterial zeolite particles and antibacterial resin composition

Hydroisomerization catalyst, process for producing the same, method of dewaxing hydrocarbon oil, and process for producing lube base oil

CATALYST FOR PURIFYING EXHAUST GAS

Production of liquid hydrocarbons

The invention relates to a method of preparing a supported catalyst, which method comprises the steps of; (i) providing a porous catalyst support comprising a framework having an internal pore structure comprising one or more pores which internal pore structure comprises a precipitant; (ii) contacting the catalyst support with a solution or colloidal suspension comprising a catalytically active metal such that, on contact with the precipitant, particles comprising the catalytically active metal are precipitated within the internal pore structure of the framework of the catalyst support. The invention also relates to supported catalysts made according to the above method, and to use of the catalysts in catalysing chemical reactions, for example in the Fischer Tropsch synthesis of hydrocarbons.

Binary catalyst based selective catalytic reduction filter

Catalytic cores for a wall-flow filter include juxtaposed channels extending longitudinally between an inlet side and an outlet side of the core, wherein the inlet channels are plugged at the outlet side and outlet channels are plugged at the inlet side. Longitudinal walls forming the inlet and outlet channels separate the inlet channels from the outlet channels. The walls include pores that create passages extending across a width of the walls from the inlet channels to the outlet channels. Catalysts are distributed across the width and length of the walls within internal surfaces of the pores in a manner such that the loading of each catalyst across the width varies by less than 50% from an average loading across the width.

CATALYST

CRYSTALLINE ALUMINOSILICATE COMPOSITIONS, THE PREPARATION THEREOF AND THEIR USE IN THE CONVERSION OF SYNTHESIS GAS TO LOW MOLECULAR WEIGHT HYDROCARBONS

CRACKING CATALYST COMPOSITION

METHOD OF DEHYDROCYCLIZING ALKANES

OXYGENATE TREATMENT OF DEWAXING CATALYST FOR GREATER YIELD OF DEWAXED PRODUCT

Fischer-Tropsch hydrocarbon synthesis using a noncobalt catalyst is used to produce waxy fuel and lubricant oil hydrocarbons from synthesis gas derived from natural gas. The waxy hydrocarbons are hydrodewaxed, with reduced conversion to lower boiling hydrocarbons, by contacting the waxy hydrocarbons, in the presence of hydrogen, with an unsulfided hydrodewaxing catalyst that has been reduced and then treated by contacting it with a stream containing one or more oxygenates.

CRACKING CATALYST COMPOSITION

... 5204 CRACKING CATALYST COMPOSITION An improved catalytic cracking catalyst composition which contains a rare earth exchanged crystalline aluminosilicate zeolite, clay, alumina, an inorganic oxide sol binder or typical alumina-silica type binder and combinations thereof and a minor quantity of platinum and/or palladium. A catalyst is particularly effective for the catalytic cracking of hydrocarbon feedstocks which contain high levels of sulfur and/or heavy metals.

MOLECULAR SIEVE-PALLADIUM-PLATINUM CATALYST ON A SUBSTRATE

A catalyst system for the oxidation of hydrocarbons, carbon monoxide, and the reduction of nitrogen oxides is provided. The unique synergy of the catalyst system, a combination of molecular sieves and noble metals, provides a system that partially or entirely replaces the need for rhodium as a catalyst in three way catalyst systems.

CATALYST SYSTEM AND PROCESS FOR CONVERSION OF A HYDROCARBON FEED UTILIZING THE CATALYST SYSTEM

The present invention relates to a catalyst system comprising: i. a first layer of a hydrocarbon conversion catalyst, the hydrocarbon conversion catalyst comprising: a first composition comprising a platinum group metal on a solid support; and a second composition comprising a transition metal on an inorganic support; ii. a second layer comprising a cracking catalyst; and to a process for conversion of a hydrocarbon feed utilizing this catalyst system.

BINARY CATALYST BASED SELECTIVE CATALYTIC REDUCTION FILTER

Catalytic cores for a wall-flow filter include juxtaposed channels extending longitudinally between an inlet side and an outlet side of the core, wherein the inlet channels are plugged at the outlet side and outlet channels are plugged at the inlet side. Longitudinal walls forming the inlet and outlet channels separate the inlet channels from the outlet channels. The walls include pores that create passages extending across a width of the walls from the inlet channels to the outlet channels. Catalysts are distributed across the width and length of the walls within internal surfaces of the pores in a manner such that the loading of each catalyst across the width varies by less than 50% from an average loading across the width.

FABRICATION DU STYRENE

A SILICOALUMINOPHOSPAHTE ISOMERISATION CATALYST

A catalyst system for treating a hydrocarbonaceous feed comprising a matrix selected from the group consisting of alumina, silica alumina, titanium alumina and mixtures thereof; a support medium substantially uniformly distributed through said matrix comprising a SAPO-11 molecular sieve; and about 0.1 to about 1.0 wt % (based on the total weight of the catalyst system) of a catalytically active metal phase supported on said medium and comprising a metal selected from the group consisting of platinum, palladium, ruthenium, rhodium or mixtures thereof. The catalyst system is characterized in that said SAPO-11 molecular sieve has: a) a silica to alumina molar ratio of about 0.08 to about 0.24,- b) a phosphorous to alumina ratio of about 0.75 to about 0.83; c) a microsurface area of at least about 150m2/g; d) a crytallite size in the range of abouth 250 to about 600 angstroms, and e) a sodium content of less than about 2000 ppm weight.

SCR CATALYTIC CONVERTER HAVING IMPROVED HYDROCARBON RESISTANCE

The invention relates to a catalytic converter for the selective catalytic reduction of nitrogen oxides in diesel engine exhaust gases using ammonia or a precursor compound that can be decomposed to form ammonia as a reductant. The catalytic converter contains two coatings, which are applied to a substrate body and which lie one over the other, of which the first coating, which is applied directly to the substrate body, contains a transition-metal-exchanged zeolite and/or a transition-metal-exchanged zeolite-like compound and actively catalyzes the SCR reaction. The second coating is applied to the first coating in such a way that the second coating covers the first coating on the exhaust gas side. The second coating is such that the second coating prevents hydrocarbons present in the exhaust gas and having at least three C atoms from contacting the layer lying thereunder, without blocking the passage of nitrogen oxides and ammonia to the first coating. The second coating can be made of ...

CATALYST COMPOSITION FOR PURIFICATION OF EXHAUST GAS, CATALYST FOR PURIFICATION OF EXHAUST GAS, AND PROCESS FOR PRODUCING SAID CATALYST

METHOD FOR PRETREATING A REFORMONG CATALYST

Supported Group VIII noble metal reforming catalysts are pretreated with an unsaturated aliphatic hydrocarbon at elevated temperatures, thereby lower activity during initial reforming operation and reducing gas production during the initial operation.

THERMALLY STABLE NOBLE METAL-CONTAINING ZEOLITE CATALYST

F-5673 THERMALLY STABLE NOBLE METAL-CONTAINING ZEOLITE CATALYST A zeolite catalyst composition having increased resistance to agglomeration and/or migration of its noble metal component at high temperatures and a method for preparing the catalyst composition are disclosed. The zeolite catalyst composition contains a non-framework multivalent metal oxide to stabilize the noble metal. The multivalent metal oxide, such as alumina, can be introduced into the zeolite component by diffusion, impregnation, ion-exchange, and/or calcination.

Catalyst for the Simultaneous Selective Hydrogenation of Diolefins and Nitriles and Method of Making Same

DEHYDROCYCLIZATION OR CATALYTIC REFORMING USING SULFUR TOLERANT ZEOLITE CATALYST

... 2073960 9113130 PCTABS00007 A process is provided for catalytic reforming or dehydrocyclization of hydrocarbons using a catalyst comprising a noble metal, and an intermediate pore size crystalline silicate having a high silica to alumina ratio and a relatively low alkali content. Preferably, the crystalline silicate is in the form of small crystallite size, such as less than 5 microns. The reforming or dehydrocyclization process is sulfur tolerant so that the reforming can be carried out in the presence of sulfur or with periodic exposure to sulfur.

A METHOD FOR UPGRADING WAXY FEEDS USING A CATALYST COMPRISING MIXED POWDERED DEWAXING CATALYST AND POWDERED ISOMERIZATION CATALYST FORMED INTO A DISCRETE PARTICLE

It has been discovered that waxy feeds can be upgraded using a catalyst made by combining powdered dewaxing catalyst with powdered isomerization catalyst, said mixture of powdered catalysts being formed into a discrete particle.

ZEOLITE CATALYST FOR PURIFYING THE EXHAUST GASES FROM DIESELENGINES

The invention relates to a catalyst for purifying the exhaust gases from diesel engines. The catalyst contains a zeolite mixture of several zeolites with different moduli and platinum group metals as well as further metal oxides from the group comprising aluminium silicate, aluminium oxide and titanium oxide, wherein the aluminium silicate has a ratio by weight of silicon dioxide to aluminium oxide of 0.005 to 1 and the platinum group metals are deposited on only the further metal oxides.

A METHOD FOR UPGRADING WAXY FEEDS USING A CATALYST COMPRISING MIXED POWDERED DEWAXING CATALYST AND POWDERED ISOMERIZATION CATALYST FORMED INTO A DISCRETE PARTICLE

It has been discovered that waxy feeds can be upgraded using a catalyst made by combining powdered dewaxing catalyst with powdered isomerization catalyst said mixture of powdered catalyst being formed into a discrete particle.

Verfahren zur Verbesserung der physikalischen Eigenschaften eines Zeolith-Katalysators

Verfahren zur hydrierenden Crackung von oberhalb 150º siedenden Kohlenwasserstoff-Fraktionen

Verfahren zur Katalysator-Reaktivierung

Verfahren zur hydrierenden Crackung von Kohlenwasserstoffen

Verfahren zum hydrierenden Spalten von Kohlenwasserstoffen

Verfahren zur selektiven Umwandlung von Komponenten von Kohlenwasserstoffgemischen

Verfahren zum hydrierenden Cracken eines stickstoffhaltigen Kohlenwasserstofföls

Vorrichtung zum Nachweis und zur Bestimmung von Ammoniak und Schwefeldioxyd in Gasen

PROCEDURE FOR THE OSSIDRILAZIONE OF AROMATIC HYDROCARBONS.

REFORMING HYDROCARBONS

METHOD OF PRODUCING ASSOCIATED WITH SILICON FLUIDIZED CATALYST

METHODS FOR PREPARING AND FORMING OF APPLIED ACTIVE METAL CATALYSTS AND PRECURSORS

КАТАЛИЗАТОР АЛКИЛИРОВАНИЯ, ЕГО ПОЛУЧЕНИЕ И ПРИМЕНЕНИЕ

Способ приготовления катализатора, подходящего для алкилирования углеводородного сырья, где указанный способ включает стадии: (а) объединение частиц твердой кислоты со связующим материалом с образованием предшественника катализатора; (b) прокаливание предшественника катализатора при температуре, находящейся в диапазоне 400-575°С; (с) пропитывание прокаленного предшественника катализатора раствором, содержащим соединения благородных металлов из группы VIII, и ионы NH4+; и d) прокаливание пропитанных частиц при температуре катализатора, находящейся в диапазоне от 400 до 500°С. Применение двух стадий прокаливания в вышеупомянутом диапазоне температур приводит к получению катализаторов алкилирования с улучшенными эксплутационными характеристиками.

СПОСОБ ПОЛУЧЕНИЯ ЖИДКОГО ТОПЛИВА И СИСТЕМА ДЛЯ ПОЛУЧЕНИЯ ЖИДКОГО ТОПЛИВА

Способ получения жидкого топлива, который синтезирует углеводороды из синтез-газа посредством реакции синтеза Фишера-Тропша и производит жидкие топлива, используя углеводороды, способ включает: подвергание углеводородов предварительной обработке в присутствии водорода посредством применения катализатора для предварительной обработки, в котором по меньшей мере один вид металла, выбранный из металлов 6, 7, 8, 9, 10, 11 и 14 групп Периодической таблицы нанесен на носитель; и гидрообработку углеводородов посредством применения катализатора гидрообработки после предварительной обработки.

PLATINUM - PALLADIUM CATALYST ON TsEOLITNOM CARRIER

ПРОЦЕСС ПРОИЗВОДСТВА АРОМАТИЧЕСКИХ УГЛЕВОДОРОДОВ

Процесс производства ароматических углеводородов включает: (а) приведение этана в контакт с катализатором дегидроароматизации ароматических углеводородов, содержащим от 0,005-0,1 мас. % платины, металл-ослабитель, количество которого не больше чем на 0,02 мас. % меньше, чем количество платины; от 10 до 99,9 мас. % алюмосиликата и связующее вещество, а также (b) выделение метана, водорода и углеводородов С2-5 из продуктов реакции стадии (а) для образования ароматических продуктов реакции, содержащих бензол.

СПОСОБ ПРЕОБРАЗОВАНИЯ ЭТАНА В АРОМАТИЧЕСКИЕ УГЛЕВОДОРОДЫ

Способ получения ароматических углеводородов, который включает: (а) контактирование этана с ароматическим катализатором дегидроароматизации, которые содержит от 0,005 до 0,1 мас.% платины, количество галлия, которое равно количеству платины или превосходит его, от 10 до 99,9 мас.% алюмосиликата и связующее вещество, и (b) отделение метана, водорода и С2-5-углеводородов от продуктов реакции стадии (а), производя ароматические продукты реакции, включающие бензол.

ПРОЦЕСС И КАТАЛИЗАТОР ДЛЯ ПРОИЗВОДСТВА АРОМАТИЧЕСКИХ УГЛЕВОДОРОДОВ

Процесс производства ароматических углеводородов включает: (а) приведение этана в контакт с катализатором дегидроароматизации ароматических углеводородов, содержащим от 0,005-0,1 мас. % платины, галлий, количество которого равняется или больше количества платины; от 10 до 99,9 мас. % алюмосиликата и связующее вещество, а также (b) выделение метана, водорода и углеводородов С2-5, из продуктов реакции стадии (а) для образования ароматических продуктов реакции, содержащих бензол.

КАТАЛИЗАТОР АЛКИЛИРОВАНИЯ, ЕГО ПОЛУЧЕНИЕ И ПРИМЕНЕНИЕ

Способ приготовления катализатора, подходящего для алкилирования углеводородного сырья, где указанный способ включает стадии: (а) объединение частиц твердой кислоты со связующим материалом с образованием предшественника катализатора; (b) прокаливание предшественника катализатора при температуре, находящейся в диапазоне 400-575°С; (с) пропитывание прокаленного предшественника катализатора раствором, содержащим соединения благородных металлов из группы VIII и ионы NH4+; и d) прокаливание пропитанных частиц при температуре катализатора, находящейся в диапазоне от 400 до 500°C. Применение двух стадий прокаливания в вышеупомянутом диапазоне температур приводит к получению катализаторов алкилирования с улучшенными эксплуатационными характеристиками.

PROCESS FOR THE CONVERSION OF ETHANE TO AROMATIC HYDROCARBONS

Hydrocarbon conversion catalyst and method of catalytic onversion therewith

The exhaust gas purifying device

Hydrogenation alkylation catalyst activation and use

Process of hydrocarbon hydrocraquage

CATALYSEUR D'HYDROCRAQUAGE

L'INVENTION CONCERNE UN CATALYSEUR DONT LA PHASE ACTIVE EST A BASE D'AU MOINS UN METAL OU COMPOSE DE METAL DU GROUPE VIII ET D'EVENTUELLEMENT AU MOINS UN METAL OU COMPOSE DE METAL DU GROUPE VI DE LA CLASSIFICATION PERIODIQUE DES ELEMENTS ET DONT LE SUPPORT RESULTE DU MELANGE D'UNE ZEOLITHE ET D'UNE MATRICE A BASE D'ALUMINE OBTENUE PAR CARBONATION D'UN ALUMINATE ALCALIN. LE CATALYSEUR TROUVE UNE APPLICATION DANS L'HYDROCRAQUAGE DE COUPES PETROLIERES.

Process of hydrocarbon reformation

APPARATUS FOR GAS CONVERSION AND FOR MEASURING AMMONIA AND SULFUR DIOXIDE CONTAMINANTS IN A GAS

CATALYST Of OXIDATION OF COMPOSE ORGANIC VOLATILE

PROCESS OF HYDROCARBON REFORMING USING a CATALYST

Olefin production process

A novel olefin production process is provided which can be established as an industrial and practical process capable of producing olefins by directly reacting a ketone and hydrogen in a single reaction step. In particular, a novel olefin production process is provided in which propylene is obtained with high selectivity by directly reacting acetone and hydrogen. The olefin production process according to the present invention includes reacting a ketone and hydrogen in the presence of at least one dehydration catalyst and a silver-containing catalyst, and the at least one dehydration catalyst is selected from metal oxide catalysts containing a Group 6 element, zeolites, aluminas and heteropoly acid salts in which part or all the protons in heteropoly acids are exchanged with metal cations.

Double-component modified molecular sieve with improved hydrothermal stability and production method thereof

A method for producing double-component modified molecular sieve comprises adding molecular sieve to an aqueous solution containing phosphorus to form a mixture, allowing the mixture to react at pH of 1-10, temperature of 70-200° C. and pressure of 0.2-1.2 MPa for 10-200 min, and then filtering, drying and baking the resultant to obtain phosphorus-modified molecular sieve, and then adding the phosphorus-modified molecular sieve to an aqueous solution containing silver ions, allowing the phosphorus-modified molecular sieve to react with silver ions at 0-100° C. in dark condition for 30-150 min, and then filtering, drying and baking. The obtained double-component modified molecular sieve contains 88-99 wt % molecular sieve with a ratio of silica to alumina between 15 and 60, 0.5-10 wt % phosphorus (based on oxides) and 0.01-2 wt % silver (based on oxides), all based on dry matter. A catalyst produced from the double-component modified molecular sieve has improved hydrothermal stability and microactivity.

Pre-carburized molybdenum-modified zeolite catalyst and use thereof for the aromatization of lower alkanes

The present invention relates to a method for producing a zeolite catalyst useful for aromatization of a lower alkane, a zeolite catalyst useful for aromatization of a lower alkane obtainable by said method and a process for aromatization of a lower alkane using the zeolite catalyst of the present invention.

Modified Zeolite Catalyst Useful for the Conversion of Paraffins, Olefins and Aromatics in a Mixed Feedstock into Isoparaffins and a Process Thereof

The invention relates to a modified zeolite catalyst, useful for the conversion of paraffins, olefins and aromatics in a mixed feedstock such as FCC gasoline that contain high content of olefin, aromatic and n-paraffin into isoparaffins. The invention further relates to the use of such a catalyst, for example but not limited to, in a process for the conversion of paraffins, olefins and aromatics in a mixed feedstock into the product having high amount of branched paraffins with decreased aromatics and olefins, a useful gasoline blend, with negligible production of lighter gases. 14.-. (canceled)5. A process for the preparation of modified zeolite catalyst useful for the conversion of paraffins , olefins and aromatics in a mixed feedstock into isoparaffins , comprising:a) treating the zeolite mordenite with steam, at a temperature of 300-700° C., for 2-6 hours in a shallow bed reactor for dealumination, followed by washing with 0.01-2N acid solution at 100-110° C. for 2-6 hours and further washing with deionized water to remove the extra-framework debris of the zeolite and the nitrate ions;b) shaping the zeolite catalyst obtained in step (a) by mixing it with an inert alumina binder, with zeolite to binder ratio in the range of 3:1 to 3:2.5 by weight, followed by adding 2-3 vol % glacial acetic acid and allowing the above said mixture for peptization to obtain a homogeneous paste, followed by extrusion, drying at 20-30° C., for 10-12 hours and calcinations at 500° C. for 2-6 hours; andc) loading the extruded catalyst obtained in step (b) with the noble metal ions by incipient wet impregnation method (IWI) using Pt tetrammonium chloride and/or Pd chloride as a source of salts, followed by calcination at 500-600° C. for 4-6 hours to obtain the desired modified catalyst.6. The process of claim 5 , wherein the inert alumina binder used in step (b) is pseudo boehmite.7. The process of claim 5 , wherein the steaming temperature used in step (a) is in the range of 350-650° ...

MULTIFUNCTIONAL CATALYST ADDITIVE COMPOSITION AND PROCESS OF PREPARATION THEREOF

The present invention relates to a multifunctional catalyst additive composition for reduction of carbon monoxide and nitrogen oxides in a fluid catalytic cracking process comprising an inorganic oxide; alumino silicate or a zeolite; a noble metal; a metal of Group I A; a metal of Group II A; a metal of Group III A; a metal of Group IV A; a metal of Group V A; a rare earth oxide; at least a metal of Group VIII. The composition is attrition resistant and is incorporated on a support. The present invention also discloses a process for preparing the multifunctional catalyst additive composition. The present invention also discloses a fluid cracking catalyst comprising the multifunctional catalyst additive composition. 1. A multifunctional catalyst additive composition for reduction of carbon monoxide and nitrogen oxides in a fluid catalytic cracking process comprising:(i) an inorganic oxide material.(ii) at least 1% of alumino silicate or a zeolite;(iii) at least 0.001% by weight of a noble metal;(iv) at least 0.01% by weight of a metal of Group I A;(v) at least 0.01% by weight of a metal of Group II A;(vi) at least 0.45% by weight of a metal of Group III A;(vii) at least 0.3% by weight of an element of Group IV A;(viii) at least 0.01% by weight of at least a metal of Group V A;(ix) at least 0.05% by weight of a rare earth oxide;(x) at least 0.02% by weight of at least a metal of Group VIII;wherein said multifunctional additive composition is deposited on to a support and is attrition resistant.2. The multifunctional catalyst additive composition as claimed in wherein said support is a fresh support or discarded refinery catalyst from a cracking petroleum process.3. The multifunctional catalyst additive composition as claimed in wherein said fresh support comprises inorganic oxide or zeoilite with unimodal pore distribution having pores in the range of 20° A to 300° A claim 1 , preferably in the range of 20 to 100° A claim 1 , more preferably in the range of 20 to 60° ...

Method for Producing a Platinum Catalyst Precursor

The present invention relates to a method for producing a precursor of a supported platinum catalyst. To provide a method for producing a platinum catalyst precursor, by means of which supported platinum catalysts can be produced which have a relatively high activity, a method is proposed, comprising the steps of: a) impregnating an open-pored support material with platinum sulphite acid; b) calcining the impregnated zeolite material under a protective gas.

Method for producing tertiary amine

The present invention discloses the method for producing a tertiary amine, using the column reactor packed with catalyst layers, containing supplying a liquid and a gaseous raw materials from the bottom of the column, reacting these raw materials in the column, and discharging the product from the top of the column, wherein the column reactor includes two or more honeycomb catalyst layers as the catalyst layers, one or more spaces between each honeycomb catalyst layer, and one or more rectifying sections that prevents a partial or whole back flow of the raw materials, arranged in each space without contacting with the honeycomb catalyst layer.

Bi-Modal Radial Flow Reactor

A bi-modal radial flow reactor comprising a cylindrical outer housing surrounding at least five cylindrical, concentric zones, including at least three annulus vapor zones and at least two catalyst zones. The at least two catalyst zones comprise an outer catalyst zone and an inner catalyst zone. The at least three annulus vapor zones comprise an outer annulus vapor zone, a middle annulus vapor zone, and a central annulus vapor zone, wherein the central annulus vapor zone extends along a centerline of the bi-modal radial flow reactor. The outer catalyst zone is intercalated with the outer annulus vapor zone and the middle annulus vapor zone, and the inner catalyst zone is intercalated with the middle annulus vapor zone and the central annulus vapor zone. A removable head cover can be fixably coupled to a top of the cylindrical outer housing to seal a top of the bi-modal radial flow reactor.

CATALYSTS AND METHODS FOR PRODUCING ACETIC ACID FROM METHANE, CARBON MONOXIDE, AND OXYGEN

Catalysts for producing one or more oxygenated products from methane are provided. In embodiments, the catalyst comprises active sites comprising isolated, cationic transition metal M′ atoms covalently bound to internal surfaces of pores of a porous metal M″ silicate, wherein M′ is Rh or Ir, and further wherein the M′ atoms are bound to five oxygen (O) atoms. Methods for making and using the catalysts are also provided. 1. A catalyst for producing one or more oxygenated products from methane , the catalyst comprising active sites comprising isolated , cationic transition metal M′ atoms covalently bound to internal surfaces of pores of a porous metal M″ silicate ,wherein M′ is Rh or Ir, andfurther wherein the M′ atoms are bound to five oxygen (O) atoms.2. The catalyst of claim 1 , wherein the active sites have formula (O)=M′≡(O) claim 1 , wherein Ois molecular oxygen and the remaining O atoms are also covalently bound within the porous metal M″ silicate.3. The catalyst of claim 2 , wherein one claim 2 , two claim 2 , or all three of the oxygens of the M′≡(O)bonds are also covalently bound to the M″ of the porous metal M″ silicate claim 2 , thereby providing one claim 2 , two claim 2 , or three M′-O-M″ linkages.4. The catalyst of claim 1 , wherein an external surface of the porous metal M″ silicate is free of M′ atoms claim 1 , the porous metal M″ silicate is free of M′-M′ bonds claim 1 , the porous metal M″ silicate is free of M′ oxide particles claim 1 , or combinations thereof.5. The catalyst of having an amount of M′ in a range of from 0.01 wt % to 0.5 wt %.6. The catalyst of claim 1 , wherein the porous metal M″ silicate is a microporous aluminosilicate.7. The catalyst of claim 6 , wherein the microporous aluminosilicate is a zeolite.8. The catalyst of claim 7 , wherein the zeolite is ZSM-5.9. A catalyst for producing one or more oxygenated products from methane claim 7 , the catalyst comprising active sites comprising isolated claim 7 , cationic transition metal ...

Methods of Preparing an Aromatization Catalyst

A method of preparing a bound zeolite support comprising: contacting a zeolite powder with a binder and water to form a paste; shaping the paste to form an wet extruded base; removing excess water from the wet extruded base to form an extruded base; contacting the extruded base with a fluorine-containing compound to form a fluorinated extruded base; calcining the extruded base to form a calcined fluorinated extruded base; washing the calcined fluorinated extruded base to form a washed calcined fluorinated extruded base; drying the washed calcined fluorinated extruded base to form a dried washed calcined fluorinated extruded base; and calcining the dried washed calcined fluorinated extruded base to form a bound zeolite support. 1. A method of preparing a bound zeolite support comprising:calcining an extruded base to form a calcined extruded base, wherein the extruded base comprises a KL-zeolite;contacting the calcined extruded base with a fluorine-containing compound to form a fluorinated calcined extruded base;washing the fluorinated calcined extruded base to form a washed fluorinated calcined extruded base;drying the washed fluorinated calcined extruded base to form a dried washed fluorinated calcined extruded base;calcining the dried washed fluorinated calcined extruded base to form a bound zeolite support; andcontacting the bound zeolite support with a Group VIII metal.2. The method of claim 1 , further comprising:contacting a KL-zeolite powder with a binder and water to form a paste;shaping the paste to form an wet extruded base; andremoving excess water from the wet extruded base to form the extruded base.3. The method of claim 2 , wherein the binder comprises synthetic or naturally-occurring zeolites claim 2 , alumina claim 2 , silica claim 2 , clays claim 2 , refractory oxides of metals of Groups IVA and IVB of the Periodic Table of the Elements; oxides of silicon claim 2 , titanium claim 2 , zirconium; or combinations thereof.4. The method of claim 2 , ...

METHOD FOR TREATING ENGINE EXHAUST BY USE OF HYDROTHERMALLY STABLE, LOW-TEMPERATURE NOx REDUCTION NH3-SCR CATALYSTS

A catalyst composition includes a heterobimetallic zeolite characterized by a chabazite structure loaded with copper ions and at least one trivalent metal ion other than Al 3+ . The catalyst composition decreases NO x emissions in diesel exhaust and is suitable for operation in a catalytic converter.

ALLOYED ZEOLITE CATALYST COMPONENT, METHOD FOR MAKING AND CATALYTIC APPLICATION THEREOF

The presently disclosed and claimed inventive concept(s) generally relates to a method of making a solid catalyst component comprising a zeolite with a modifier and at least one Group VIII metal alloyed with at least one transition metal and a process of converting mixed waste plastics into low molecular weight organic compounds using the solid catalyst component. The process of converting mixed waste plastics into low molecular weight organic compounds may employ the use of a non-thermal catalytic plasma reactor, which may be configured as a fluid bed reactor or fixed bed reactor. 113.-. (canceled)14. A process of converting a mixed waste plastic into a low molecular weight organic compound , comprising the steps of(a) feeding particles of the mixed waste plastic, plasma, and a solid catalyst component into a non-thermal catalytic plasma reactor, the solid catalyst component comprising (i) a modified zeolite and (ii) alloyed metals into a fluidized bed reactor;(b) heating the particles of the mixed waste plastic and the solid catalyst component at a temperature effective to produce a coarse filler, inorganic components, coke, a volatile organic component, and a spent catalyst component;(c) withdrawing a first stream comprising the volatile organic component from the reactor;(d) withdrawing a second stream comprising the spent catalyst component, the coke, the coarse filler and the inorganic components from the reactor;(e) heating the second stream in a regenerator in the presence of oxygen, air, or a blend of oxygen with an inert gas at a temperature effective to convert the coke to a mixture of carbon monoxide, carbon dioxide and water, and to regenerate the solid catalyst component; and(f) separating the regenerated solid catalyst component from the coarse filler and the inorganic components.15. The process of claim 14 , wherein the inert gas of step (e) is nitrogen claim 14 , steam or combinations thereof.16. The process of claim 14 , wherein the volatile ...

ZONE COATED CATALYTIC SUBSTRATES WITH PASSIVE NOX ADSORPTION ZONES

Disclosed are methods of forming zone coated substrates for use in catalytic converters, as well as washcoat compositions and methods suitable for using in preparation of the zone coated substrates, and the zone coated substrates formed thereby. The zone coated substrates can include a Passive NOAdsorption zone and a catalytic zone. Also disclosed are exhaust treatment systems, and vehicles, such as diesel vehicles, using catalytic converters and exhaust treatment systems using the zone coated substrates. 1. A coated substrate comprising: the first zone comprising a Passive NOx Adsorber (PNA) layer comprising nano-sized platinum group metal (PGM) on a plurality of support particles comprising cerium oxide; and', 'the second zone comprising a first catalytic layer comprising a first composite nanoparticle, wherein the first composite nanoparticle comprises a first catalytic nanoparticle on a first support nanoparticle., 'a substrate comprising a first zone and a second zone;'}2. The coated substrate of claim 1 , wherein the first composite nanoparticle is plasma created.3. (canceled)4. The coated substrate of claim 1 , wherein the first composite nanoparticle is bonded to a micron-sized carrier particle to form a first NNm particle.5. The coated substrate of claim 1 , wherein the first composite nanoparticle is embedded within carrier particles to form a first NNiM particle.6. The coated substrate of claim 1 , wherein the second zone further comprises a second catalytic layer comprising a second composite nanoparticle claim 1 , wherein the second composite nanoparticle comprises a second catalytic nanoparticle on a second support nanoparticle.78-. (canceled)9. The coated substrate of claim 1 , wherein the first claim 1 , second claim 1 , or first and second catalytic nanoparticles comprise platinum and palladium.1012-. (canceled)13. The coated substrate of claim 1 , wherein the second zone further comprises a zeolite layer comprising zeolite particles.14. The coated ...

Method of Forming a Catalyst with an Ion-Modified Binder

An alkylation catalyst having a zeolite catalyst component and a binder component providing mechanical support for the zeolite catalyst component is disclosed. The binder component is an ion-modified binder that can include metal ions selected from the group consisting of Co, Mn, Ti, Zr, V, Nb, K, Cs, Ga, B, P, Rb, Ag, Na, Cu, Mg, Fe, Mo, Ce, and combinations thereof The metal ions reduce the number of acid sites on the zeolite catalyst component. The metal ions can range from 0.1 to 50 wt % based on the total weight of the ion-modified binder. Optionally, the ion-modified binder is present in amounts ranging from 1 to 80 wt % based on the total weight of the catalyst.

Vehicle powertrain with onboard catalytic reformer

Catalyst compositions suitable for use in the exhaust gas recycle stream of an internal combustion engine are provided. Such catalyst compositions typically provide significant amounts of methane in addition to syngas. A reformer incorporating such a catalyst for use in an exhaust gas recycle portion of an internal combustion engine powertrain is described. A powertrain incorporating such a reformer, a method of increasing the octane rating of an exhaust gas recycle stream, and a method of operating an internal combustion engine using methane-assisted combustion are also described.

Copper cha zeolite catalysts

Zeolite catalysts and systems and methods for preparing and using zeolite catalysts having the CHA crystal structure are disclosed. The catalysts can be used to remove nitrogen oxides from a gaseous medium across a broad temperature range and exhibit hydrothermal stable at high reaction temperatures. The zeolite catalysts include a zeolite carrier having a silica to alumina ratio from about 15:1 to about 256:1 and a copper to alumina ratio from about 0.25:1 to about 1:1.

Mechanically strong catalyst and catalyst carrier, its preparation, and its use

The invention concerns catalyst or a catalyst carrier comprising 35 to 99.9 wt % of metal oxide and 0.1 to 50 wt % of silanized silica particles, calculated on the total weight of the catalyst or catalyst carrier. The invention further relates to a process to prepare the catalyst or catalyst carrier. The invention also relates to the use of the catalyst, or a catalyst comprising the catalyst carrier, in a catalytic reaction.

Hydrogen Oxidation Catalyst, Use Thereof, And Method For Hydrogen Recombination

A hydrogen oxidation catalyst is provided, comprising a zeolite that contains at least one catalytically active noble metal or a compound thereof, wherein said zeolite is a hydrophobic zeolite. A use of the catalyst and a method for hydrogen recombination in nuclear power plants, reprocessing plants or fuel element repositories is also specified.

Low-Temperature Oxidation Catalyst With Particularly Marked Hydrophobic Properties For The Oxidation Of Organic Pollutants

The present invention relates to a catalyst comprising a macroporous noble metal-containing zeolite material and a porous SiO-containing binder, wherein the catalyst has a proportion of micropores of more than 70%, based on the total pore volume of the catalyst. The invention is additionally directed to a process for preparing the catalyst and to the use of the catalyst as an oxidation catalyst. 19.-. (canceled)10. Method of producing a catalyst according to , comprising the following steps:a) introducing a noble metal precursor compound into a microporous zeolite material;b) calcining the zeolite material loaded with the noble metal precursor compound;{'sub': '2', 'c) mixing the zeolite material loaded with the noble metal compound with a porous SiO-containing binder and a solvent;'}d) drying and calcining the mixture comprising the zeolite material loaded with the noble metal compound and the binder.11. Method according to claim 10 , wherein the mixture obtained in step c) is applied to a support.12. (canceled) The present invention relates to a catalyst comprising a microporous noble metal-containing zeolite material and a porous SiO-containing binder, wherein the catalyst has a proportion of micropores of more than 70%, relative to the total pore volume of the catalyst. The invention is additionally directed to a method of producing the catalyst as well as to the use of the catalyst as oxidation catalyst.Purifying exhaust gases by means of catalysts has been known for some time. For example, the exhaust gases from combustion engines are purified with so-called three-way catalysts (TWC). The nitrogen oxides are reduced with reductive hydrocarbons (HC) and carbon monoxide (CO).Likewise, the exhaust gases from diesel engines are post-treated with catalysts. Here, carbon monoxide, unburnt hydrocarbons, nitrogen oxides and soot particles, for example, are removed from the exhaust gas. Unburnt hydrocarbons which are to be treated catalytically include paraffins, ...

Catalyst Support and Process for the Preparation Thereof

An amorphous catalyst support comprising at least a first oxide selected from the group consisting of: silica, germanium oxide, titanium oxide, zirconium oxide or mixtures thereof, preferably silica gel beads or diatomaceous earth; a group 3 metal oxide; and anions in an amount not greater than 10% by weight of the catalyst support; wherein the group 3 metal oxide is incorporated in the first oxide structure at the molecular level. The catalyst support is prepared by (a) mixing the first oxide, with an anhydrous source of the group 3 metal oxide, and water, at a pH above 11, thus forming a suspension, (b) washing the catalyst support with water, (c) separating the catalyst support from the water, and (d) optionally drying and/or calcining the catalyst support. A catalyst based on such a support has improved catalytic properties. 1. A process for the preparation of a catalyst support , the process comprising:(a) mixing silica gel beads or diatomaceous earth with an anhydrous source of alumina and water, at a pH above 11, thus forming a suspension,(b) optionally washing the catalyst support with water,(c) separating the catalyst support from the water,(d) optionally drying and/or calcining the catalyst support.2. A process as claimed in claim 1 , wherein the temperature in step (a) is in the range of from 30 to 90° C.3. The process as claimed in claim 1 , wherein the temperature in step (a) is in the range of from 55 to 85° C.4. The process as claimed in claim 1 , wherein the anhydrous source of alumina comprises a metal-alumina claim 1 , preferably sodium aluminate.5. The process as claimed in claim 2 , wherein the anhydrous source of alumina comprises a metal-alumina claim 2 , preferably sodium aluminate.6. The process as claimed in claim 1 , wherein the mixture in step (a) is stirred for from 5 to 90 minutes.7. The process as claimed in claim 1 , wherein the mixture in step (a) is stirred for from 15 to 60 minutes.8. The process as claimed in claim 1 , wherein the ...

EXHAUST GAS PURIFICATION CATALYST AND PRODUCTION METHOD THEREOF

This catalyst includes a lower catalytic layer having catalytic ability to oxidize HC and CO and an upper catalytic layer having catalytic ability to reduce NO. The lower catalytic layer contains Pt and Pd acting as catalytic metals, zeolite, a Ce-containing oxide, and activated alumina, and the upper catalytic layer contains activated alumina loading an Rh-doped Ce-containing oxide and an NOstorage material. 1. An exhaust gas purification catalyst comprising:a lower catalytic layer having catalytic ability to oxidize HC and CO on a substrate; and{'sub': 'x', 'an upper catalytic layer having catalytic ability to reduce NOon top of, or above, the lower catalytic layer, wherein'}the lower catalytic layer contains Pt and Pd acting as catalytic metals, zeolite, Ce-containing oxide, and activated alumina, and{'sub': 'x', 'the upper catalytic layer contains activated alumina loading an Rh-doped Ce-containing oxide and an NOstorage material.'}2. The exhaust gas purification catalyst of claim 1 , whereinthe lower catalytic layer includes a first oxidation catalyst layer containing activated alumina loading Pt and Pd and a Ce-containing oxide loading Pt and Pd, and a second oxidation catalyst layer containing zeolite loading Pt and Pd, andthe second oxidation catalyst layer is disposed on the first oxidation catalyst layer.3. The exhaust gas purification catalyst of claim 1 , wherein{'sub': 'x', 'an intermediate catalytic layer is provided between the lower and upper catalytic layers, the intermediate catalytic layer containing Pt and Rh acting as catalytic metals, activated alumina, a Ce-containing oxide and an NOstorage material, and containing no Pd.'}4. The exhaust gas purification catalyst of claim 2 , wherein{'sub': 'x', 'an intermediate catalytic layer is provided between the lower and upper catalytic layers, the intermediate catalytic layer containing Pt and Rh acting as catalytic metals, activated alumina, a Ce-containing oxide and an NOstorage material, and ...

Acidic Aromatization Catalyst with Improved Activity and Stability

Methods for producing supported catalysts containing a transition metal and a bound zeolite base are disclosed. These methods employ a step of impregnating the bound zeolite base with the transition metal, fluorine, and high loadings of chlorine. The resultant high chlorine content supported catalysts have improved catalyst activity in aromatization reactions. 1. A supported catalyst comprising:a bound zeolite base;from about 0.3 wt. % to about 3 wt. % of a transition metal;from about 1.8 wt. % to about 4 wt. % of chlorine; andfrom about 0.4 wt. % to about 1.5 wt. % of fluorine, based on the total weight of the supported catalyst;wherein the supported catalyst is characterized by a peak reduction temperature on a Temperature Programmed Reduction curve in a range from about 580° F. to about 800° F.2. The catalyst of claim 1 , wherein the bound zeolite base comprises from about 5 wt. % to about 30 wt. % of a binder claim 1 , based on the total weight of the bound zeolite base.3. The catalyst of claim 1 , wherein:the bound zeolite base comprises a silica-bound K/L-zeolite;the transition metal comprises platinum; anda weight ratio of chlorine:fluorine is in a range from about 2:1 to about 5:1.4. The catalyst of claim 1 , wherein the supported catalyst comprises:from about 0.5 wt. % to about 2 wt. % of platinum;from about 2.2 wt. % to about 3.4 wt. % of chlorine; andfrom about 0.5 wt. % to about 1.1 wt. % of fluorine.5. The catalyst of claim 4 , wherein the supported catalyst is characterized by a peak reduction temperature on a Temperature Programmed Reduction curve in a range from about 600° F. to about 720° F.6. The catalyst of claim 1 , wherein the supported catalyst has a total nitrogen content that is greater than that of a catalyst having from 0.3 wt. % to 1.5 wt. % chlorine claim 1 , under the same catalyst preparation conditions.7. The catalyst of claim 1 , wherein the supported catalyst is characterized by a Temperature Programmed Reduction curve comprising a ...

A Process For Preparing A Catalyst

The present disclosure relates to a process for preparing a catalyst. The process comprises coating zeolite gel over the alumina support to obtain a chloride free zeolite gel coated alumina support, crystallizing the chloride free zeolite gel coated alumina support, washing, drying and calcining the crystallized zeolite coated alumina support to obtain a calcined crystallized chloride free zeolite coated alumina support, treating the calcined crystallized chloride free zeolite coated alumina support with ammonium nitrate to obtain sodium free support, washing, drying, and calcining the support to obtain a calcined chloride free zeolite coated alumina support, immersing the calcined chloride free zeolite coated alumina support in an active metal and a promoter metal solution mixture followed by stirring to obtain a metal coated chloride free zeolite coated alumina support, and drying and calcining the metal coated chloride free zeolite coated alumina support to obtain the catalyst. 1. A process for preparing a catalyst comprising the following steps:a) providing alumina support;b) coating zeolite gel over the alumina support to obtain a chloride free zeolite gel coated alumina support;c) crystallizing the chloride free zeolite gel coated alumina support to obtain a crystallized zeolite coated alumina support;d) washing, drying and calcining the crystallized chloride free zeolite coated alumina support to obtain a calcined crystallized chloride free zeolite coated alumina support;e) treating the calcined crystallized chloride free zeolite coated alumina support with ammonium nitrate to obtain sodium free support; andf) washing, drying, and calcining the support to obtain a calcined chloride free zeolite coated alumina support.g) immersing the calcined chloride free zeolite coated alumina support in an active metal and a promoter metal solution mixture followed by stirring to obtain a metal coated chloride free zeolite coated alumina support; andh) drying and calcining ...

Catalyst For A Naphtha Reforming Process

The present disclosure relates to a catalyst for a naphtha reforming process. The catalyst comprises a chloride free zeolite coated alumina support impregnated with 0.01 wt % to 0.5 wt % active metal and 0.01 wt % to 0.5 wt % promoter metal, characterized in that the thickness of the zeolite coating on the alumina support ranges from 100 μm to 200 μm. 1. A catalyst comprising a chloride free zeolite coated alumina support impregnated with 0.01 wt % to 0.5 wt % active metal and 0.01 wt % to 0.5 wt % promoter metal , wherein the thickness of said zeolite coating on said chloride free alumina support ranges from 100 μm to 200 μm.2. The catalyst as claimed in claim 1 , wherein said zeolite is at least one selected from a group consisting of ZSM-5 claim 1 , mordenite claim 1 , USY claim 1 , H-Beta claim 1 , MCM-22 claim 1 , and ZSM-12.3. The catalyst as claimed in claim 1 , wherein said zeolite is ZSM-5 comprising SiOand AlO.4. The catalyst as claimed in claim 3 , wherein said zeolite is ZSM-5 having the ratio of SiOto AlOranging from 10:1 to 20:1 claim 3 , preferably 15:1.5. The catalyst as claimed in claim 1 , wherein said active metal is at least one selected from the group consisting of platinum (Pt) claim 1 , palladium (Pd) and nickel (Ni).6. The catalyst as claimed in claim 1 , wherein said active metal is platinum (Pt).7. The catalyst as claimed in claim 1 , wherein said promoter metal is at least one selected from the group consisting of tin (Sn) claim 1 , rhenium (Re) and Iridium (Ir).8. The catalyst as claimed in claim 1 , wherein said promoter metal is tin (Sn). The present disclosure relates to a catalyst for a naphtha reforming process.An active metal is a Group VIII metal of the modern periodic table. The Group VIII metals are platinum (Pt), palladium (Pd) and nickel (Ni).A promoter metal is a Group IV metal of the modern periodic table. The Group IV metals are tin (Sn), rhenium (Re) and iridium (Ir).ZSM-5 is an aluminosilicate zeolite belonging to the ...

NOVEL METHODS FOR PRODUCING CRYSTALLINE MICROPOROUS SOLIDS WITH THE RTH TOPOLOGY AND COMPOSITIONS DERIVED FROM THE SAME

This disclosure relates to new crystalline microporous solids (including silicate- and aluminosilicate-based solids), the compositions comprising 8 and 10 membered inorganic rings, particularly those having RTH topologies having a range of Si:Al ratios, methods of preparing these and known crystalline microporous solids using certain quaternized imidazolium cation structuring agents. 1. A process for preparing a crystalline microporous solid of RTH topology , the process comprising hydrothermally treating a composition comprising: '(ii) at least one source of aluminum oxide, boron oxide, gallium oxide, hafnium oxide, iron oxide, tin oxide, titanium oxide, indium oxide, vanadium oxide, zirconium oxide, or combination or mixture thereof', '(a) (i) at least one source of silicon oxide and'}in the presence of an organic complex comprising(b) an imidazolium cation comprising methyl and ethyl groups and having a C/N+ ratio in a range of from 6:1 to 10:1; and(c) an associated hydroxide or fluoride anion;under conditions effective to crystallize the crystalline microporous solid of RTH topology.2. The process of claim 1 , comprising hydrothermally treating a composition comprising (ii) at least one source of aluminum oxide; and optionally', '(iii) at least one source of boron oxide, gallium oxide, hafnium oxide, iron oxide, tin oxide, titanium oxide, indium oxide, vanadium oxide, zirconium oxide, or combination or mixture thereof and, '(a) (i) at least one source of a silicon oxide, germanium oxide, or combination thereof;'}(b) an imidazolium cation comprising methyl and ethyl groups and having a C/N+ ratio in a range of from 6:1 to 8:1 and an associated hydroxide or fluoride anion, under conditions effective to crystallize a crystalline microporous aluminosilicate solid of RTH topology.4. The process of claim 1 , wherein the source of silicon oxide comprises a silicate claim 1 , silica hydrogel claim 1 , silicic acid claim 1 , fumed silica claim 1 , colloidal silica claim ...

Aluminum composite material

An object of the present invention is to provide an aluminum composite material having excellent adhesiveness between a support and a supported substance. The aluminum composite material of an embodiment of the present invention is an aluminum composite material having an oxide film-including aluminum base material having an oxide film on at least a part of a surface of an aluminum base material and a supported substance supported on the surface of the oxide film-including aluminum base material, in which an average film thickness of the oxide film is 1 nm or more and less than 100 nm, and the oxide film-side surface of the aluminum base material has at least one roughened structure selected from the group consisting of a roughened structure including concave portions having an average opening diameter of more than 5 μm and 100 μm or less, a roughened structure including concave portions having an average opening diameter of more than 0.5 μm and 5 μm or less, and an uneven structure including concave portions having an average opening diameter of more than 0.01 μm and 0.5 μm or less.

PLATINUM GROUP METAL (PGM) CATALYST FOR TREATING EXHAUST GAS

Provided are catalysts comprising a small pore molecular sieve embedded with platinum group metal (PGM) and methods for treating lean burn exhaust gas using the same. 1. A catalyst comprising:a. a small pore aluminosilicate molecular sieve material comprising a plurality of crystals having a surface and a porous network; andb. at least one Platinum Group Metal (PGM),wherein a majority amount of said PGM is embedded in said porous network relative to PGM disposed on said surface.2. The catalyst of claim 1 , wherein said aluminosilicate molecular sieve has a silica-to-alumina ratio of about 8 to about 150 and an alkali content of no more than about 5 weight percent based on the total weight of the aluminosilicate molecular sieve.3. The catalyst of claim 2 , wherein said catalyst comprises about 0.01 to about 10 weight percent PGM relative to weight of the molecular sieve.4. The catalyst of claim 2 , wherein said catalyst comprises about 0.1 to about 1 weight percent PGM relative to weight of the molecular sieve.5. The catalyst of claim 2 , wherein the small pore molecular sieve material comprises a plurality of crystals having a mean crystalline size of about 0.01 to about 10 microns.6. The catalyst of claim 2 , wherein the small pore molecular sieve material comprises a plurality of crystals having a mean crystalline size of about 0.5 to about 5 microns.7. The catalyst of claim 5 , wherein the small pore molecular sieve material has a framework selected from ACO claim 5 , AEI claim 5 , AEN claim 5 , AFN claim 5 , AFT claim 5 , AFX claim 5 , ANA claim 5 , APC claim 5 , APD claim 5 , ATT claim 5 , CDO claim 5 , CHA claim 5 , DDR claim 5 , DFT claim 5 , EAB claim 5 , EDI claim 5 , EPI claim 5 , ERI claim 5 , GIS claim 5 , GOO claim 5 , IHW claim 5 , ITE claim 5 , ITW claim 5 , LEV claim 5 , KFI claim 5 , MER claim 5 , MON claim 5 , NSI claim 5 , OWE claim 5 , PAU claim 5 , PHI claim 5 , RHO claim 5 , RTH claim 5 , SAT claim 5 , SAV claim 5 , SIV claim 5 , THO claim 5 , ...

SYSTEM AND METHOD FOR CREATING CATALYST OBD LIMIT PARTS FOR EXHAUST AFTERTREATMENT APPLICATIONS

Catalyst diagnostic limit parts and methods for making catalyst diagnostic limit parts are disclosed. An exemplary catalyst diagnostic limit part includes a substrate and a washcoat coating the substrate. The washcoat includes an active catalyst and an inactive catalyst at a predetermined ratio of active catalyst to inactive catalyst so as to control the performance of the catalyst diagnostic limit part. 1. A catalyst diagnostic limit part , comprising:a substrate; anda washcoat coating the substrate, the washcoat including an active catalyst and an inactive catalyst at a predetermined ratio of active catalyst to inactive catalyst so as to control the performance of the catalyst diagnostic limit part.2. The catalyst diagnostic limit part of claim 1 , wherein the predetermined ratio is no higher than 30%:70%.3. The catalyst diagnostic limit part of claim 1 , wherein the predetermined ratio is no higher than 25%:75%.4. The catalyst diagnostic limit part of claim 1 , wherein the inactive catalyst is prepared by thermal aging an active catalyst.5. The catalyst diagnostic limit part of claim 1 , wherein the inactive catalyst includes a chemically-inert material.6. The catalyst diagnostic limit part of claim 5 , wherein the chemically-inert material includes un-exchanged zeolites.7. The catalyst diagnostic limit part of claim 1 , wherein the substrate has a length to diameter ratio of at least 0.33.8. The catalyst diagnostic limit part of claim 1 , wherein the substrate is fully-coated by the washcoat.9. The catalyst diagnostic limit part of claim 1 , wherein the catalyst diagnostic limit part is a diesel oxidation catalyst.10. The catalyst diagnostic limit part of claim 9 , wherein the washcoat includes a predetermined amount of platinum group metal loading less than a conventionally-full amount claim 9 , the predetermined amount defining the predetermined ratio.11. The catalyst diagnostic limit part of claim 1 , wherein the catalyst diagnostic limit part is one of a ...

Methods of Preparing an Aromatization Catalyst

Catalysts and method of preparing the catalysts are disclosed. One of the catalysts includes a zeolite support, a Group VIII metal on the zeolite support, and at least two halides bound to the zeolite support, to the Group VIII metal, or to both, and can have an average crush strength greater than 11.25 lb based on at least two samples of pellets of the catalyst measured in accordance with ASTM D4179.

MULTICOMPONENT EXHAUST TREATMENT SYSTEM INCLUDING AN OXYGEN STORAGE CATALYST

Methods and systems are provided for a multicomponent aftertreatment device arranged in a vehicle exhaust gas passage. In one example, a system may include an oxygen storage catalyst and an underbody trap catalyst comprising metal modified zeolite, the oxygen storage catalyst arranged upstream of the underbody trap catalyst in an exhaust passage of the vehicle. 1. A system for a vehicle , comprising:an oxygen storage catalyst; andan underbody trap catalyst comprising metal modified zeolite, the oxygen storage catalyst arranged upstream of the underbody trap catalyst in an exhaust passage of the vehicle.2. The system of claim 1 , wherein the oxygen storage catalyst comprises an oxygen storage material loaded on or impregnated in a carrier body claim 1 , the oxygen storage material including nickel claim 1 , iron claim 1 , and/or cerium.3. The system of claim 2 , wherein the carrier body comprises cordierite claim 2 , zirconium oxide claim 2 , silicon carbide claim 2 , or silica gel.4. The system of claim 2 , wherein the oxygen storage material is present in the oxygen storage catalyst at 10% or greater weight per weight of the carrier body.5. The system of claim 1 , wherein the underbody trap catalyst further comprises a three-way catalyst washcoat claim 1 , the three-way catalyst washcoat including one or more platinum group metals claim 1 , and wherein the metal modified zeolite comprises platinum group metal modified zeolite.6. The system of claim 1 , further comprising an engine coupled to the exhaust passage and a three-way catalyst coupled downstream of the engine and upstream of the oxygen storage catalyst in the exhaust passage of the vehicle claim 1 , wherein the three-way catalyst is positioned in the exhaust passage 13-33 cm from the engine claim 1 , and wherein the underbody trap catalyst is positioned in the exhaust passage 25 cm or greater from the three-way catalyst.7. The system of claim 1 , further comprising a controller storing instructions in non- ...

Low-temperature oxidation catalyst with particularly marked hydrophobic properties for the oxidation of organic pullutants

The present invention relates to a catalyst comprising a macroporous noble metal-containing zeolite material and a porous SiO 2 -containing binder, wherein the catalyst has a proportion of micropores of more than 70%, based on the total pore volume of the catalyst. The invention is additionally directed to a process for preparing the catalyst and to the use of the catalyst as an oxidation catalyst.

OXIDATION CATALYST FOR INTERNAL COMBUSTION ENGINE EXHAUST GAS TREATMENT

The invention provides an exhaust gas cleaning oxidation catalyst and in particular to an oxidation catalyst for cleaning the exhaust gas discharged from internal combustion engines of compression ignition type (particularly diesel engines). The invention further relates to a catalysed substrate monolith comprising an oxidising catalyst on a substrate monolith for use in treating exhaust gas emitted from a lean-burn internal combustion engine. In particular, the invention relates to a catalysed substrate monolith comprising a first washcoat coating and a second washcoat coating, wherein the second washcoat coating is disposed in a layer above the first washcoat coating. 1. An oxidation catalyst for the oxidative treatment of a hydrocarbon (HC) and carbon monoxide (CO) in an exhaust gas , the oxidation catalyst comprising a supporting substrate and a plurality of catalyst layers supported on the supporting substrate , wherein the plurality of catalyst layers comprise a washcoat material , an active metal and a hydrocarbon adsorbent , and wherein one catalyst layer lies on a catalyst surface layer side and one or more other catalyst layers lie on a side between the said one catalyst layer and the supporting substrate; and wherein:(a) the amount of hydrocarbon adsorbent in the said one catalyst layer is greater than the amount of hydrocarbon adsorbent in the said one or more other catalyst layers, and the concentration of active metal in the said one catalyst layer is the same as or less than the concentration of active metal in the said one or more other catalyst layers; or(b) the amount of hydrocarbon adsorbent in the said one catalyst layer is the same as the amount of hydrocarbon adsorbent in the said one or more other catalyst layers, and the concentration of active metal in the said one catalyst layer is less than the concentration of active metal in the said one or more other catalyst layers.2. An oxidation catalyst according to claim 1 , wherein the hydrocarbon ...

Acidic aromatization catalysts with improved activity and selectivity

Methods for producing supported catalysts containing a transition metal and a bound zeolite base are disclosed. These methods employ a step of impregnating the bound zeolite base with the transition metal, fluorine, and high loadings of chlorine. The resultant high chlorine content supported catalysts have improved catalyst activity in aromatization reactions.

SEQUENTIAL IMPREGNATION FOR NOBLE METAL ALLOY FORMATION

Methods are provided for forming noble metal catalysts comprising both platinum and a second Group VIII metal, such as palladium, with improved aromatic saturation activity. Instead of impregnating a catalyst with both platinum and another Group VIII metal at the same time, a sequential impregnation can be used, with the Group VIII metal being impregnated prior to platinum. It has been discovered that by forming a Group VIII metal-impregnated catalyst first, and then impregnating with platinum, the distribution of platinum throughout the catalyst can be improved. The improved distribution of platinum can result in a catalyst with enhanced aromatic saturation activity relative to a catalyst with a similar composition formed by simultaneous impregnation. 19.-. (canceled)10. A supported catalyst comprising:a support comprising at least one of a zeolitic support and a mesoporous support, the support having an Alpha value of at least 100; and0.1 wt % to 5.0 wt %, based on a weight of the supported catalyst, of a combined amount of platinum and Group VIII metal on the support, a weight ratio of platinum and Group VIII metal being from 0.1 to 10, the Group VIII metal comprising Pd, Ni, Rh, Ir, Ru, Co, or a combination thereof,wherein the supported catalyst has a catalyst width and an average platinum content per volume, and wherein a peak platinum content per volume across the catalyst width differs from the average platinum content per volume by less than 100% of the average platinum content per volume.11. The supported catalyst of claim 10 , wherein the supported catalyst has an average combined platinum and Group VIII metal content per volume claim 10 , and wherein a peak combined platinum and Group VIII metal content per volume across the catalyst width differs from the average combined platinum and Group VIII metal content per volume by less than 100% of the average combined platinum and Group VIII metal content per volume.12. The supported catalyst of claim 10 , ...

CO2 DESORPTION CATALYST

This invention provides a COdesorption catalyst that has an excellent COdesorption activity and that can be used to replace metal filler. This invention provides a COdesorption catalyst comprising an inorganic powder or inorganic powder compact, the inorganic powder or inorganic powder compact having a BET specific surface area of 7 m/g or more. 1. A COdesorption device including:{'sub': 2', '2, 'a COabsorption tower for absorbing and removing COfrom exhaust gas by using an absorbing solution; and'}{'sub': '2', 'a regeneration tower for regenerating the absorbing solution containing absorbed CO,'}{'sub': '2', 'wherein the regeneration tower contains a COdesorption catalyst comprising an inorganic powder or inorganic powder compact,'}{'sup': '2', 'wherein the inorganic powder or inorganic powder compact has a BET specific surface area of 7 m/g or more,'}{'sub': 2', '3, 'wherein the inorganic powder or inorganic powder compact is at least one member selected from the group consisting of AlOand zeolites, and'}wherein at least one metal selected from the group consisting of Pd, Fe, Co, Ag, Ni, and Pt is supported on the catalyst.2. The COdesorption device according to claim 1 , wherein the inorganic powder or inorganic powder compact further comprises BN.3. A method for desorbing CO claim 1 ,{'sub': '2', 'the method comprising the step of regenerating an absorbing solution containing absorbed CO,'}{'sub': 2', '2, 'wherein the regeneration step brings the absorbing solution containing absorbed COinto contact with a COdesorption catalyst comprising an inorganic powder or inorganic powder compact,'}{'sup': '2', 'wherein the inorganic powder or inorganic powder compact has a BET specific surface area of 7 m/g or more,'}{'sub': 2', '3, 'wherein the inorganic powder or inorganic powder compact is at least one member selected from the group consisting of AlOand zeolites, and'}wherein at least one metal selected from the group consisting of Pd, Fe, Co, Ag, Ni, and Pt is ...

SPINEL COMPOSITIONS AND APPLICATIONS THEREOF

Spinels having a general formula of ABO, where A and B are a transition metal but not the same transition metal are disclosed. Spinel and spinel compositions of the application are useful in various applications and methods as further described. 1. A catalyst comprising a spinel having the general formula of ABO , wherein A and B are a transition metal , wherein A and B are not the same transition metal.2. The catalyst of claim 1 , wherein the transition metal is selected from the group consisting of iron (Fe) claim 1 , manganese (Mn) claim 1 , nickel (Ni) claim 1 , cobalt (Co) claim 1 , copper (Cu) claim 1 , vanadium (V) claim 1 , silver (Ag) claim 1 , palladium (Pd) claim 1 , ruthenium (Ru) claim 1 , rhodium (Rh) claim 1 , platinum (Pt) claim 1 , molybdenum (Mo) claim 1 , niobium (Nb) claim 1 , titanium (Ti) claim 1 , etc.) and an “other metal” (i.e. claim 1 , aluminum (Al) claim 1 , magnesium (Mg) claim 1 , gallium (Ga) claim 1 , tin (Sn) claim 1 , thallium (Tl) claim 1 , lead (Pb) claim 1 , bismuth (Bi) claim 1 , and indium (In).3. The catalyst of claim 1 , wherein the spinel is rare-earth metal free.4. The catalyst of claim 1 , wherein the spinel further comprises a dopant.5. The catalyst of claim 4 , wherein the spinel has a general formula of ADBO claim 4 , where D is the dopant.7. The catalyst of claim 4 , wherein the dopant is a low valence dopant.8. The catalyst of claim 4 , wherein the dopant is a high valence dopant.9. The catalyst of claim 1 , wherein the spinel is deposited on a substrate.10. The catalyst of claim 9 , wherein the substrate is a support oxide.11. The catalyst of claim 10 , wherein the support oxide is transition alumina claim 10 , alpha alumina claim 10 , titania claim 10 , zeolite claim 10 , silica claim 10 , silicate claim 10 , magnesium-silicate claim 10 , silica-alumina claim 10 , ceria claim 10 , ceria-zirconia claim 10 , lanthanide-doped ceria-zirconia claim 10 , lanthanum doped alumina claim 10 , and mixed metal oxide.12. The ...

Acidic Aromatization Catalyst with Improved Activity and Stability

Methods for producing supported catalysts containing a transition metal and a bound zeolite base are disclosed. These methods employ a step of impregnating the bound zeolite base with the transition metal, fluorine, and high loadings of chlorine. The resultant high chlorine content supported catalysts have improved catalyst activity in aromatization reactions. 116-. (canceled)17. A method of producing a supported catalyst , the method comprising:(a) impregnating a bound zeolite base with a transition metal precursor, a chlorine precursor, and a fluorine precursor to form an impregnated zeolite base; and(b) drying and then calcining the impregnated zeolite base to produce the supported catalyst; wherein the supported catalyst comprises, based on the total weight of the supported catalyst:from about 0.3 wt. % to about 3 wt. % of a transition metal;from about 1.8 wt. % to about 4 wt. % of chlorine; andfrom about 0.4 wt. % to about 1.5 wt. % of fluorine; andwherein the supported catalyst is characterized by a peak reduction temperature on a Temperature Programmed Reduction curve in a range from about 580° F. to about 800° F.18. The method of claim 17 , wherein impregnating the bound zeolite base with the transition metal precursor claim 17 , the chlorine precursor claim 17 , and the fluorine precursor comprises mixing the bound zeolite base with an aqueous solution comprising the transition metal precursor claim 17 , the chlorine precursor claim 17 , and the fluorine precursor.19. The method of claim 17 , wherein the method further comprises a reducing step after the drying and calcining of the impregnated zeolite base claim 17 , the reducing step comprising contacting the supported catalyst with a reducing gas stream to produce an activated catalyst.20. The method of claim 19 , wherein the activated catalyst comprises from about 0.2 wt. % to about 1.3 wt. % of chlorine claim 19 , based on the total weight of the activated catalyst.21. An activated aromatization ...

NH3 OVERDOSING-TOLERANT SCR CATALYST

Catalysts having a blend of platinum on a support with low ammonia storage with a Cu-SCR catalyst or an Fe-SCR catalyst are disclosed. The catalysts can also contain one or two additional SCR catalysts. The catalysts can be present in one of various configurations. Catalytic articles containing these catalysts are disclosed. The catalytic articles are useful for selective catalytic reduction (SCR) of NOx in exhaust gases and in reducing the amount of ammonia slip. Methods for producing such articles are described. Methods of using the catalytic articles in an SCR process, where the amount of ammonia slip is reduced, are also described. 1. A catalytic article comprising a substrate having an inlet and outlet and coated with a first coating comprising a blend of (a) platinum on a molecular sieve support with low ammonia storage with (b) a first SCR catalyst; a second coating comprising a second SCR catalyst; wherein the second coating at least partially overlaps the first coating , where the ratio of the amount of the first SCR catalyst to the amount of platinum on the support with low ammonia storage is in the range of 10:1 to 50:1 , inclusive , based on the weight of these components.2. The catalytic article of claim 1 , wherein the first SCR catalyst is a Cu-SCR catalyst or a Fe-SCR catalyst.3. The catalytic article of claim 1 , where the second coating completely overlaps the first coating.4. The catalyst article of claim 1 , wherein the second coating overlaps at least 20% of the length of the first coating along an axis from the inlet to the outlet.5. The catalytic article of claim 1 , where the support comprises a silica or a zeolite with silica-to-alumina ratio of at least one of: (a) ≥100 claim 1 , (b) ≥200 claim 1 , (c) ≥250 claim 1 , ≥300 claim 1 , (d) ≥400 claim 1 , (e) ≥500 claim 1 , (f) ≥750 and (g) ≥1000.6. The catalyst of claim 1 , where the blend further comprises at least one of palladium (Pd) claim 1 , gold (Au) claim 1 , silver (Ag) claim 1 , ...

NOBLE METAL-MOLECULAR SIEVE CATALYSTS

Exhaust gas catalysts are disclosed. One exhaust gas catalyst comprises a noble metal and a molecular sieve, and has an infrared spectrum having a characteristic absorption peak from 750 cmto 1050 cmin addition to the absorption peaks for the molecular sieve itself. The exhaust gas catalyst also comprises a noble metal and a molecular sieve, having greater than 5 percent of the noble metal amount located inside pores of the molecular sieve. The exhaust gas catalyst also comprises a first and second molecular sieve catalyst. The first molecular sieve catalyst comprises a first noble metal and a first molecular sieve, and the second molecular sieve catalyst comprises a second noble metal and a second molecular sieve. The first and second molecular sieves are different. The invention also includes exhaust systems comprising the exhaust gas catalysts, and a method for treating exhaust gas utilizing the exhaust gas catalysts. 1. An exhaust gas catalyst effective to adsorb NOand hydrocarbons (HC) at or below a low temperature and to convert and release the adsorbed NOand HC at temperatures above the low temperature , said exhaust gas catalyst comprising a first molecular sieve catalyst and a second molecular sieve catalyst , wherein the first molecular sieve catalyst comprises a first noble metal and a first molecular sieve , and the second molecular sieve catalyst comprises a second noble metal and a second molecular sieve , wherein the first molecular sieve is different than the second molecular sieve.2. The exhaust gas catalyst of wherein greater than 5 percent of the total amount of first noble metal is located inside pores of the first molecular sieve and greater than 5 percent of the total amount of second noble metal is located inside pores of the second molecular sieve.3. The exhaust gas catalyst of wherein the first noble metal and the second noble metal are independently selected from the group consisting of platinum claim 1 , palladium claim 1 , rhodium claim 1 ...

Process for producing lpg and btx from mixed hydrocarbons feed

The present invention relates to a process for producing LPG and BTX from a mixed feedstream comprising C5-C12 hydrocarbons by contacting said feedstream in the presence of hydrogen with a first hydrocracking catalyst and contacting the thus obtained first hydrocracked product in the presence of hydrogen with a second hydrocracking catalyst to produce a second hydrocracked product stream comprising LPG and BTX.

DUAL-LAYER CATALYST

A dual-layer catalyst includes a substrate, a first layer disposed on the substrate, and a second layer disposed on the first layer. The first layer includes a first catalyst for storing NOwhen the first catalyst has a temperature below an active temperature of a second catalyst. The first catalyst is to release the stored NOwhen the first catalyst is heated to the active temperature of the second catalyst. The second layer includes the second catalyst for ammonia Selective Catalytic Reduction of the released NO. The dual-layer catalyst is to be included in a catalytic converter and a catalyst system for reducing NOemissions from a diesel engine, the NOemissions including NOemitted during a predetermined cold-start time period. 1. A dual-layer catalyst , comprising:a substrate;{'sub': x', 'x, 'a first layer disposed on the substrate and comprising a first catalyst to store NOwhen the first catalyst has a temperature below an active temperature of a second catalyst, the first catalyst to release the stored NOwhen the first catalyst is heated to the active temperature of the second catalyst; and'}{'sub': 'x', 'a second layer disposed on the first layer and comprising the second catalyst, the second catalyst for ammonia Selective Catalytic Reduction (SCR) of the released NO;'}{'sub': x', 'x', 'x, 'wherein the dual-layer catalyst is to be included in a catalytic converter for reducing NOemissions from a diesel engine, the NOemissions including NOemitted during a predetermined cold-start time period.'}2. The dual-layer catalyst as defined in wherein the substrate comprises a material selected from the group consisting of cordierite or a metallic alloy.3. The dual-layer catalyst as defined in wherein the first catalyst is an adsorbent catalyst to trap NO and NOmolecules.4. The dual-layer catalyst as defined in wherein the adsorbent catalyst is a composite catalyst selected from the group consisting of Pd/zeolite claim 3 , Pd/Fe/zeolite claim 3 , Pd/Cu/zeolite claim 3 , Pd ...

Manganese-Containing Diesel Oxidation Catalyst

An oxidation catalyst composite, methods, and systems for the treatment of exhaust gas emissions from a diesel engine are described. More particularly, an oxidation catalyst composite including a first washcoat layer comprising a Pt component and a Pd component, and a second washcoat layer including a refractory metal oxide support containing manganese, a zeolite, and a platinum component is described.

COATED SUBSTRATES FOR USE IN CATALYSIS AND CATALYTIC CONVERTERS AND METHODS OF COATING SUBSTRATES WITH WASHCOAT COMPOSITIONS

Disclosed are, inter alia, methods of forming coated substrates for use in catalytic converters, as well as washcoat compositions and methods suitable for using in preparation of the coated substrates, and the coated substrates formed thereby. The catalytic material is prepared by a plasma-based method, yielding catalytic material with a lower tendency to migrate on support at high temperatures, and thus less prone to catalyst aging after prolonged use. Also disclosed are catalytic converters using the coated substrates, which have favorable properties as compared to catalytic converters using catalysts deposited on substrates using solution chemistry. Also disclosed are exhaust treatment systems, and vehicles, such as diesel vehicles, particularly light-duty diesel vehicles, using catalytic converters and exhaust treatment systems using the coated substrates. 1. A coated substrate comprising:a substrate;a washcoat layer comprising zeolite particles; anda washcoat layer comprising catalytically active particles;wherein the catalytically active particles comprise plasma synthesized composite nano-particles bonded to micron-sized carrier particles, and the composite nano-particles comprise a support nano-particle and a catalytic nano-particle.242-. (canceled)43. A washcoat composition comprising a solids content of:35% to 95% by weight of catalytically active particles comprising plasma synthesized composite nano-particles bonded to micron-sized carrier particles, and the composite nano-particles comprise a support nano-particle and a catalytic nano-particle;2% to 5% by weight of boehmite particles; and2% to 55% by weight of metal-oxide particles.4492-. (canceled)93. A method of forming a washcoat composition comprising:plasma synthesizing composite nano-particles comprising a support nano-particle and a catalytic nano-particle;bonding the plasma synthesized composite nano-particles to micron-sized carrier particles to form catalytically active particles; ...

Vehicle powertrain with onboard catalytic reformer

Catalyst compositions suitable for use in the exhaust gas recycle stream of an internal combustion engine are provided. Such catalyst compositions typically provide significant amounts of methane in addition to syngas. A reformer incorporating such a catalyst for use in an exhaust gas recycle portion of an internal combustion engine powertrain is described. A powertrain incorporating such a reformer, a method of increasing the octane rating of an exhaust gas recycle stream, and a method of operating an internal combustion engine using methane-assisted combustion are also described.

Process for preparing a mesoporized catalyst, catalyst thus obtained and use thereof in a catalytic process

The invention relates to a process for preparing a catalyst comprising a mesoporized zeolite, comprising the steps of: preparation of a protonic mesoporized zeolite, which contains at least one network of micropores and at least one network of mesopores, and treatment in a gas or liquid phase containing ammonia or ammonium ions. The invention also related to the obtained catalyst and the use of this catalyst in hydroconversion processes.

CATALYST DESIGN FOR HEAVY-DUTY DIESEL COMBUSTION ENGINES

Disclosed are washcoats, coated substrates formed from such washcoats, and catalytic converters for use in diesel applications, such as heavy duty diesel applications. Methods of preparing the coated substrates are also disclosed. 196-. (canceled)97. A method of forming a coated substrate , comprising:coating a substrate with a first washcoat layer comprising zeolites;coating the first washcoat layer with a second washcoat layer comprising a first catalytically active material comprising first composite nanoparticles embedded within porous micron-sized carrier particles, wherein the first composite nanoparticles comprise a first support nanoparticle and a first catalytic nanoparticle, and wherein the first catalytic nanoparticle comprises a platinum-palladium alloy; andcoating the second washcoat layer with a third washcoat layer comprising a second catalytically active material comprising second composite nanoparticles embedded within porous micron-sized carrier particles, wherein the second composite nanoparticles comprise a second support nanoparticle and a second catalytic nanoparticle, and wherein the second catalytic nanoparticle comprises a platinum-palladium alloy.98. The method of claim 97 , wherein the platinum-palladium alloy of the first catalytic nanoparticle comprises a platinum:palladium ratio of less than about 4:1 Pt:Pd.99. The method of claim 98 , wherein the platinum-palladium alloy of the first catalytic nanoparticle comprises a platinum:palladium ratio of about 1:1 to about 4:1 Pt:Pd.100. The method of claim 97 , wherein the platinum-palladium alloy of the second catalytic nanoparticle comprises a platinum:palladium ratio of greater than about 4:1 Pt:Pd.101. The method of claim 100 , wherein the platinum palladium alloy of the second catalytic nanoparticle comprises a platinum:palladium ratio of about 10:1 to about 100:1 Pt:Pd.102. The method of claim 100 , wherein the platinum-palladium alloy of the first catalytic nanoparticle comprises a ...

ALLOYED ZEOLITE CATALYST COMPONENT, METHOD FOR MAKING AND CATALYTIC APPLICATION THEREOF

The presently disclosed and claimed inventive concept(s) generally relates to a solid catalyst component comprising a zeolite with a modifier and at least one Group VIII meal alloyed with at least one transition metal. The presently disclosed and claimed inventive concept(s) further relates to a method of making the solid catalyst component and a process of converting mixed waste plastics into low molecular weight organic compounds using the solid catalyst component. 113.-. (canceled)14. A process of converting a mixed waste plastic into a low molecular weight organic compound , comprising the steps of(a) feeding particles of the mixed waste plastic and a solid catalyst component into a fluidized bed reactor, the solid catalyst component comprising (i) a modified zeolite and (ii) alloyed metals comprising at least one noble metal alloyed with at least one transition metal, wherein the zeolite is selected from the group consisting of chabazite, erionite, faujasite, ferrierite, mordenite, offretite, TEA-mordenite, zeolite A, zeolite beta, zeolite boron beta, zeolite L, zeolite X, zeolite Y, zeolite ZK-5, Breck-6, HZSM-5, ITQ-1, ITQ-21, MCM-22, MCM-36, MCM-39, MCM-41, MCM-48, PSH-3, SUZ-4, EU-1, SAPO-5, SAPO-11, SAPO-34, (S)AIPO-31, SSZ-23, SSZ-32, TUD-1, VPI-5, ZSM-4, ZSM-5, ZSM-8, ZSM-11, ZSM-12, ZSM-20, ZSM-21, ZSM-22, ZSM-23, ZSM-34, ZSM-35, ZSM-38, ZSM-48, ZSM-50, ZSM-57, and combinations thereof, and wherein the modified zeolite is modified with a modifier selected from the group consisting of (1) phosphorous, (2) boron, (3) phosphorous and boron, (4) an additive selected from the group consisting of gallium, zinc, zirconium, niobium, tantalum, and combinations thereof, and (5) combinations thereof;(b) heating the particles of the mixed waste plastic and the solid catalyst component at a temperature effective to produce a coarse filler, inorganic components, coke, a volatile organic component, and a spent catalyst component;(c) withdrawing a first stream ...

Catalyst Compositions, Articles, Methods And Systems

Described are catalyst compositions, catalytic articles, exhaust gas treatment systems and methods that utilize the catalytic articles. The catalyst composition comprises a washcoat including a zeolite, refractory metal oxide support particles, and a platinum group metal supported on the refractory metal oxide support particles. Greater than 90% of the refractory metal oxide particles supporting PGM have a particle size greater than 1 μm and a d 50 less than 40 microns.

Exhaust gas purification catalyst and method for manufacturing same

An exhaust gas purification catalyst is disposed in an exhaust gas channel of an engine and includes a catalytic layer 22 provided on a substrate 21 . The catalytic layer 22 contains multiple types of γ-aluminas 23 and 24 which are different in composition and Pt 25 loaded on the multiple types of γ-aluminas 23 and 24.

Method for producing hydrocarbon liquid fuel

A method for producing a hydrocarbon liquid fuel including hydrocracking a raw material oil in the presence of a hydrocracking catalyst, at a supplying pressure of hydrogen of from 0.1 to 1.0 MPa, a liquid space velocity of liquid volume of the raw material oil of from 0.05 to 10.0 hr −1 , and a flow rate of the hydrogen from 50 to 3,000 NL per 1 L of the raw material oil, wherein the hydrocracking catalyst is produced by a method including stirring a sulfur compound and a cracking catalyst in an aqueous medium to allow liquid-solid separation (step 1); stirring a solid product obtained in the step 1 and a metal component in an aqueous medium to allow liquid-solid separation (step 2); baking a solid product obtained in the step 2 (step 3); and reducing a solid product obtained in the step 3, or reducing a solid product obtained in the step 3, and then subjecting a reduced product to sulfurization treatment (step 4). According to the present invention, the hydrocracking of a raw material oil such as fats and oils and biomass retort oils, or a hydrocarbon or the like in petroleum oils, in a given composition can be accomplished by supplying a low-pressure hydrogen of a normal pressure or so.

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: bismuth (Bi) or an oxide thereof; an alkali metal or an oxide thereof; 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 comprising a mixed oxide of alumina and silica, a mixed oxide of silica and a refractory oxide, a composite oxide of alumina and silica, a composite oxide of silica and a refractory oxide, alumina doped with a silica or silica doped with a refractory oxide. 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:bismuth (Bi) or an oxide thereof;an alkali metal or an oxide thereof;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 comprising a mixed oxide of alumina and silica, a mixed oxide of silica and a refractory oxide, a composite oxide of alumina and silica, a composite oxide of silica and a refractory oxide, alumina doped with a silica or silica doped with a refractory oxide.2. An oxidation catalyst according to claim 1 , wherein the support material comprises alumina doped with silica in a total amount of 0.5 to 15% by weight of the alumina.3. An oxidation catalyst according to claim 1 , wherein the bismuth or an oxide thereof is supported on the support material.4. An oxidation catalyst according to claim 1 , wherein the alkali metal or an oxide thereof is disposed or supported on the support material.5. An oxidation catalyst according to claim 1 , wherein the alkali metal is caesium (Cs).6. An oxidation catalyst according to claim 1 , wherein the ...

Catalyst Design for Heavy-Duty Diesel Combustion Engines

Disclosed are washcoats, coated substrates formed from such washcoats, and catalytic converters for use in diesel applications, such as heavy duty diesel applications. Methods of preparing the coated substrates are also disclosed. 1. The coated substrate of claim 5 , wherein the coated substrate is free of zeolites claim 5 , first catalytically active material further comprises plasma-created composite nanoparticles bonded to or embedded within micron-sized carrier particles claim 5 , the composite nanoparticles comprising a support nanoparticle and a catalytic nanoparticle claim 5 , and the second catalytically active material further comprises plasma-created composite nanoparticles bonded to or embedded within micron-sized carrier particles claim 5 , the composite nanoparticles comprising a support nanoparticle and a catalytic nanoparticle.2. (canceled)3. The coated substrate of claim 5 , wherein the coated substrate is free of zeolites claim 5 , and wherein the first catalytically active material comprises plasma-created composite nanoparticles bonded to or embedded within micron-sized carrier particles claim 5 , the composite nanoparticles comprising a support nanoparticle and a catalytic nanoparticle.4. (canceled)5. A coated substrate comprising:a substrate; boehmite particles; and', 'a first catalytically active material comprising platinum and palladium in a weight ratio of 10:1 platinum:palladium to 100:1 platinum:palladium, or comprising platinum and no palladium; and, 'a first washcoat layer comprising boehmite particles; and', 'a second catalytically active material comprising platinum and palladium in a weight ratio of 1:2 platinum:palladium to 8:1 platinum:palladium, or comprising two or more catalytically active materials which together comprise platinum and palladium in a weight ratio of 1:2 platinum:palladium to 8:1 platinum:palladium, or comprising palladium and no platinum., 'a second washcoat layer comprising6. (canceled)7. The coated substrate of ...

Alkylation Process Using a Catalyst Comprising Cerium Rich Rare Earth Containing Zeolites and a Hydrogenation Metal

An improved alkylation process utilizing a solid-acid catalyst comprising a cerium rich rare earth containing zeolite and a hydrogenation metal is disclosed. 1. A process for alkylating hydrocarbons wherein an alkylatable organic compound is reacted with an alkylation agent to form an alkylate in the presence of a catalyst with the catalyst being subjected intermittently to a regeneration step by being contacted with a feed containing a saturated hydrocarbon and hydrogen , said regeneration being carried out at 90% or less of the active cycle of the catalyst , with the active cycle of the catalyst being defined as the time from the start of the feeding of the alkylation agent to the moment when , in comparison with the entrance of the catalyst-containing reactor section , 20% of the alkylation agent leaves the catalyst-containing reactor section without being converted , not counting isomerization inside the molecule , wherein said catalyst comprises a hydrogenating function , solid acid constituent and one or more rare earth elements , said one or more rare earth elements comprising at least 0.1 wt % cerium calculated as fraction of the total catalyst weight.2. A process according to claim 1 , wherein the one or more rare earth elements comprise at least 0.3 wt % cerium claim 1 , calculated as fraction of the total catalyst weight.3. A process according to claim 1 , wherein the one or more rare earth elements comprise at least 0.5 wt % cerium calculated as fraction of the total catalyst weight.4. A process according to claim 1 , wherein the one or more rare earth elements are comprised of cerium and lanthanum.5. A process according to claim 1 , wherein the cerium is added to the catalyst and/or the solid acid constituent either by impregnation or by ion exchange or a combination of the two.6. The process of wherein the alkylatable organic compound comprises an isoparaffin or mixture of isoparaffins and the alkylation agent comprises C3-C5 alkenes or mixture of C3- ...

COATED SUBSTRATES FOR USE IN CATALYSIS AND CATALYTIC CONVERTERS AND METHODS OF COATING SUBSTRATES WITH WASHCOAT COMPOSITIONS

Disclosed are, inter alia, methods of forming coated substrates for use in catalytic converters, as well as washcoat compositions and methods suitable for using in preparation of the coated substrates, and the coated substrates formed thereby. The catalytic material is prepared by a plasma-based method, yielding catalytic material with a lower tendency to migrate on support at high temperatures, and thus less prone to catalyst aging after prolonged use. Also disclosed are catalytic converters using the coated substrates, which have favorable properties as compared to catalytic converters using catalysts deposited on substrates using solution chemistry. Also disclosed are exhaust treatment systems, and vehicles, such as diesel vehicles, particularly light-duty diesel vehicles, using catalytic converters and exhaust treatment systems using the coated substrates. 1. A coated substrate comprising:a substrate;a washcoat layer comprising zeolite particles; anda washcoat layer comprising catalytically active particles;wherein the catalytically active particles comprise plasma synthesized composite nano-particles bonded to micron-sized carrier particles, and the composite nano-particles comprise a support nano-particle and a catalytic nano-particle, the catalytic nano-particle comprising at least one platinum group metal.2. The coated substrate of claim 1 , wherein the washcoat layer comprising zeolite particles is formed on top of the washcoat layer comprising catalytically active particles.3. The coated substrate of claim 1 , wherein the washcoat layer comprising catalytically active particles is formed on top of the washcoat layer comprising zeolite particles.4. (canceled)5. The coated substrate of claim 1 , wherein the catalytic nano-particles comprise platinum and palladium.6. The coated substrate of claim 5 , wherein the catalytic nano-particles comprise platinum and palladium in a weight ratio of 2:1 platinum:palladium.7. The coated substrate of claim 1 , wherein the ...

Pgm catalyst for treating exhaust gas

Provided are catalysts comprising a small pore molecular sieve embedded with PGM and methods for treating lean burn exhaust gas using the same.

OXIDATION CATALYST FOR A DIESEL ENGINE EXHAUST

An oxidation catalyst for treating an exhaust gas produced by a diesel engine comprises a catalytic region and a substrate, wherein the catalytic region comprises a catalytic material comprising: bismuth (Bi) or an oxide thereof; a Group 8 metal or an oxide thereof; 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 comprises alumina, silica, a mixed oxide of alumina and a refractory oxide, a mixed oxide of silica and a refractory oxide, a composite oxide of alumina and a refractory oxide, a composite oxide of silica and a refractory oxide, alumina doped with a refractory oxide or silica doped with a refractory oxide. 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:bismuth (Bi) or an oxide thereof;a Group 8 metal or an oxide thereof;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 comprises alumina, silica, a mixed oxide of alumina and a refractory oxide, a mixed oxide of silica and a refractory oxide, a composite oxide of alumina and a refractory oxide, a composite oxide of silica and a refractory oxide, alumina doped with a refractory oxide or silica doped with a refractory oxide.2. An oxidation catalyst according to claim 1 , wherein the support material comprises alumina doped with silica in a total amount of 0.5 to 15% by weight of the alumina.3. An oxidation catalyst according to claim 1 , wherein the refractory oxide is selected from the group consisting of silica claim 1 , titania and ceria.4. An oxidation catalyst according to claim 1 , wherein the refractory oxide is zirconia.5. An oxidation catalyst according to claim 1 , wherein the bismuth or an ...

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: bismuth (Bi) or an oxide thereof; 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 comprising a mixed oxide of titanium dioxide and silica; or a composite oxide of titanium dioxide and silica; or titanium dioxide doped with silica; wherein the platinum group metal (PGM) is supported on the support material; and wherein the bismuth (Bi) or an oxide thereof is 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:bismuth (Bi) or an oxide thereof;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 comprising a mixed oxide of titanium dioxide and silica; or a composite oxide of titanium dioxide and silica; or titanium dioxide doped with silica;wherein the platinum group metal (PGM) is supported on the support material; andwherein the bismuth (Bi) or an oxide thereof is supported on the support material.2. An oxidation catalyst according to claim 1 , wherein the support material comprises either (i) the mixed oxide of titanium dioxide and silica or (ii) the composite oxide of titanium dioxide and silica; wherein the support material comprises 1 to 50% by weight of silica.3. An oxidation catalyst according to claim 1 , wherein the support material comprises titanium dioxide doped with silica in a total amount of 0.1 to 35% by weight.4. An oxidation catalyst according to claim 1 , wherein the catalytic region has a total loading of bismuth of 1 to ...

DIESEL EXHAUST GAS PURIFICATION CATALYST AND DIESEL EXHAUST GAS PURIFICATION SYSTEM

A diesel exhaust gas purification catalyst contains a substrate, and a catalyst layer formed on the substrate. The catalyst layer contains a carrier, a noble metal and/or an oxide thereof supported by the carrier, and a composite oxide of cerium and one or more Group III and/or Group IV elements. The diesel exhaust gas purification catalyst when in use is disposed on an upstream side of an exhaust gas stream with respect to a denitration catalyst. 111.-. (canceled)12. A diesel exhaust gas purification catalyst , comprising:a substrate;a catalyst layer formed on the substrate, the catalyst layer comprising a carrier, a noble metal and/or an oxide thereof supported by the carrier, and a composite oxide of cerium and one or more Group III and/or Group IV elements; anda first part to which exhaust gas is fed and a second part to which the exhaust gas that has passed through the first part is fed, the first part comprising a smaller content of the composite oxide per unit volume than that of the second part, wherein the catalyst when in use is disposed on an upstream side of an exhaust gas stream with respect to a denitration catalyst.131. The diesel exhaust gas purification catalyst according to claim , the catalyst layer comprising:a first catalyst layer formed on the substrate; anda second catalyst layer formed on the first layer, the second catalyst layer comprising a larger content of the composite oxide per unit volume than that of the first catalyst layer.141. The diesel exhaust gas purification catalyst according to claim , wherein the composite oxide comprises the Group III element , and the Group III element is a lanthanoid and/or an actinoid.151. the diesel exhaust gas purification catalyst according to claim , wherein the composite oxide comprises the Group III element , and the Group III element is lanthanum and/or praseodymium.161. The diesel exhaust gas purification catalyst according to claim , wherein the ratio of the cerium in the composite oxide is in ...

Low temperature catalyst/hydrocarbon trap

A low-temperature catalyst is provided for reducing cold-start hydrocarbon emissions. The catalyst comprises a platinum group metal impregnated onto an oxygen storage material. The catalyst may be used alone or may be included in a hydrocarbon trap containing a hydrocarbon adsorption material therein. The catalyst/hydrocarbon trap is positioned in the exhaust system of a vehicle downstream from a close-coupled catalyst such that the exhaust temperature at the catalyst location does not exceed 850° C. during normal vehicle operation and when combined with a hydrocarbon adsorption material in a trap, the exhaust temperature does not exceed 700° C.

ELIMINATION OF GASEOUS REACTANTS IN LITHIUM ION BATTERIES

A lithium ion battery is provided that includes a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode. One or more of the separator, positive electrode, and negative electrode includes a transition metal compound capable of catalyzing any gaseous reactants formed in the lithium ion battery to form a liquid. The transition metal compound may include ruthenium (Ru). In certain variations, the lithium ion battery includes an electrolyte that is a conductive medium for lithium ions to move between the positive electrode and the negative electrode. The electrolyte comprises a transition metal compound capable of catalyzing a reaction of any gaseous reactants to form a liquid. 1. A lithium ion battery comprising:a positive electrode;a negative electrode; anda separator disposed between the positive electrode and the negative electrode, wherein one or more of the separator, positive electrode, and negative electrode comprises a transition metal compound capable of catalyzing any gaseous reactants formed in the lithium ion battery to form a liquid.2. The lithium ion battery according to claim 1 , wherein the gaseous reactants are selected from the group consisting of: methane claim 1 , hydrogen claim 1 , carbon monoxide claim 1 , carbon dioxide claim 1 , ethylene claim 1 , ethane claim 1 , and combinations thereof.3. The lithium ion battery according to claim 1 , wherein the gaseous reactants comprise hydrogen chloromethane.4. The lithium ion battery according to claim 1 , wherein the transition metal compound comprises an element selected from the group consisting of:ruthenium (Ru), titanium (Ti), molybdenum (Mo), nickel (Ni), cobalt (Co), palladium (Pd), iridium (Ir), and combinations thereof.5. The lithium ion battery according to claim 4 , wherein the transition metal compound comprises ruthenium (Ru).6. The lithium ion battery according to claim 1 , wherein one of the positive electrode claim 1 , ...

BIMETALLIC CATALYSTS FOR SELECTIVE AMMONIA OXIDATION

Catalysts, methods, and systems for treating diesel engine exhaust streams are described. In one or more embodiments, the catalyst comprises a molecular sieve having a silica to alumina ratio (SAR) less than about 30, the molecular sieve including ion-exchanged copper and ion-exchanged platinum. Systems including such catalysts and methods of treating exhaust gas are also provided. 120.-. (canceled)21. A catalyst for oxidizing ammonia to nitrogen and NOx , the catalyst comprising an aluminosilicate molecular sieve having a silica-to-alumina ratio (SAR) less than 30 , the molecular sieve comprising ion-exchanged copper and ion-exchanged platinum , wherein the molecular sieve comprises a zeolite having a crystal framework type selected from FAU , MFI , MOR , BEA , HEU , and OFF , and wherein the catalyst is obtainable by a process comprising:(a) ion-exchange of copper on the molecular sieve,(b) calcination of the molecular sieve obtained in (a), and(c) ion-exchange of platinum on the molecular sieve obtained in (b).22. The catalyst of claim 21 , further comprising an amount of metallic platinum.23. The catalyst of claim 22 , wherein the aluminosilicate molecular sieve comprises a zeolite having a crystal framework type selected from FAU claim 22 , MFI claim 22 , MOR and BEA.24. The catalyst of claim 21 , wherein the aluminosilicate molecular sieve comprises a zeolite having a crystal framework type FAU and the zeolite has a SAR less than 10.25. The catalyst of claim 21 , wherein the aluminosilicate molecular sieve comprises a zeolite having a crystal framework type FAU and the zeolite has a SAR less than 6.26. The catalyst of claim 21 , wherein the catalyst is coated on a refractory ceramic support.27. The catalyst of claim 26 , wherein the total loading of the molecular sieve in the substrate is in the range of 18.3 g/1l (0.3 g/in3) and 183 g/1l (3.0 g/in3) claim 26 , based on the total catalyst volume.28. The catalyst of claim 21 , wherein the platinum particle size ...

EXHAUST GAS PURIFYING CATALYST, METHOD FOR PRODUCING SAME, AND EXHAUST GAS PURIFICATION METHOD USING SAME

An exhaust gas purify catalyst includes a substrate (), an oxidation catalyst layer () formed on the substrate () and containing zeolite and at least one catalytic metal, an LNT layer () formed on the oxidation catalyst layer () and containing an NOstorage material and at least one catalytic metal, and an NOreduction layer () formed on the LNT layer () and containing Rh acting as a catalytic metal and at least one of alumina or zirconia, wherein the NOreduction layer () has a larger content of Rh than that in each of the oxidation catalyst layer () and the LNT layer (). 1. An exhaust gas purifying catalyst comprising:a substrate;an oxidation catalyst layer formed on the substrate, and containing zeolite and at least one catalytic metal;{'sub': x', 'x, 'a lean NOtrap (LNT) layer formed on the oxidation catalyst layer, and containing an NOstorage material and at least one catalytic metal;'}{'sub': 'x', 'an NOreduction layer formed on the LNT layer, and containing Rh acting as a catalytic metal and at least one of alumina or zirconia, wherein'}{'sub': 'x', 'the NOreduction layer has a larger content of Rh than in each of the oxidation catalyst layer and the LNT layer.'}2. The exhaust gas purifying catalyst of claim 1 , whereinthe oxidation catalyst layer includes a first oxidation catalyst layer containing alumina and ceria, and a second oxidation catalyst layer formed on the first oxidation catalyst layer and containing zeolite.3. The exhaust gas purifying catalyst of claim 1 , whereinthe LNT layer further contains alumina and ceria.4. The exhaust gas purifying catalyst of claim 2 , whereinthe LNT layer further contains alumina and ceria.5. The exhaust gas purifying catalyst of claim 1 , whereinzeolite in the oxidation catalyst layer has an average particle size of 0.5 μm or more and 4.8 μm or less.6. The exhaust gas purifying catalyst of claim 2 , whereinzeolite in the oxidation catalyst layer has an average particle size of 0.5 μm or more and 4.8 μm or less.7. The ...

COMBINED NOx ABSORBER AND SCR CATALYST

The present invention is directed to selective catalytic reduction catalysts that combine SCR activity with NOx absorber activity. In particular, the disclosed catalytic article includes a substrate having a first and a second material disposed thereon, wherein the first material includes a selective catalytic reduction (SCR) catalyst composition and the second material includes a nitrogen oxides (NOx) absorber composition, wherein the NOx absorber composition does not substantially oxidize ammonia, and wherein the catalytic article is effective to abate NOx from an engine exhaust gas stream. Emission treatment systems for treating an exhaust gas including a catalytic article of the invention are provided, particularly systems that include an injector adapted for the addition of ammonia to the exhaust gas stream located upstream of the catalytic article. 1. A catalytic article comprising:a substrate having both a selective catalytic reduction (SCR) catalyst composition and a nitrogen oxides (NOx) absorber composition disposed thereon.2. The catalytic article of claim 1 , wherein the SCR catalyst composition and the NOx absorber composition are mixed in a single layer on the substrate.3. The catalytic article of claim 1 , wherein the SCR catalyst composition is in a first layer and the NOx absorber composition is in a second layer on the substrate claim 1 , and wherein the second layer is directly on the substrate and the first layer is on top of the second layer.4. The catalytic article of claim 3 , wherein the SCR catalyst composition and the NOx absorber composition are disposed onto the substrate in an axially zoned configuration claim 3 , wherein the substrate has an axial length with an inlet end and an outlet end claim 3 , and wherein the second layer is disposed on a first zone extending from the inlet end of the substrate through a range of about 5 to about 95% of the axial length of the substrate.5. The catalytic article of claim 1 , wherein the NOx ...

Aromatization Processes Using Both Fresh and Regenerated Catalysts, and Related Multi-Reactor Systems

Multi-reactor systems with aromatization reactor vessels containing a catalyst with low surface area and pore volume, followed in series by aromatization reactor vessels containing a catalyst with high surface area and pore volume, are disclosed. Related reforming methods using the different aromatization catalysts also are described. 111-. (canceled)12. An aromatization reactor vessel system comprising:(A) at least one first reactor vessel comprising:(a1) a first reactor inlet for introducing a first hydrocarbon feed into the at least one first reactor vessel;(a2) a first aromatization catalyst for catalytically converting at least a portion of the first hydrocarbon feed under first reforming conditions to produce a first aromatic product; wherein the first aromatization catalyst comprises a first transition metal and a first catalyst support, the first aromatization catalyst characterized by:{'sup': 2', '2, 'a first surface area in a range from about 80 m/g to about 150 m/g; and/or'}a first micropore volume in a range from about 0.01 cc/g to about 0.048 cc/g; and(a3) a first reactor outlet for discharging a first effluent comprising the first aromatic product from the at least one first reactor vessel;(B) at least one second reactor vessel comprising:(b1) a second reactor inlet for introducing a second hydrocarbon feed into the at least one second reactor vessel;(b2) a second aromatization catalyst for catalytically converting at least a portion of the second hydrocarbon feed under second reforming conditions to produce a second aromatic product; wherein the second aromatization catalyst comprises a second transition metal and a second catalyst support, the second aromatization catalyst characterized by:{'sup': 2', '2, 'a second surface area in a range from about 160 m/g to about 260 m/g; and/or'}a second micropore volume in a range from about 0.05 cc/g to about 0.09 cc/g; and(b3) a second reactor outlet for discharging a second effluent comprising the second ...

PROCESSES AND CATAYLST SYSTEMS FOR PRODUCING MONOETHANOLAMINE FROM GLYCOLALDEHYDE

Improvements in catalyst systems and associated processes for the conversion of glycolaldehyde to monoethanolamine are disclosed. The catalyst systems exhibit improved selectivity to this desired product and consequently reduced selectivity to byproducts such as diethanolamine and ethylene glycol. These beneficial effects are achieved through the use of acids, and particularly Lewis acids, as co-catalysts of the reductive amination reaction, in conjunction with a hydrogenation catalyst.

Aromatization Processes Using Both Fresh and Regenerated Catalysts, and Related Multi-Reactor Systems

Multi-reactor systems with aromatization reactor vessels containing a catalyst with low surface area and pore volume, followed in series by aromatization reactor vessels containing a catalyst with high surface area and pore volume, are disclosed. Related reforming methods using the different aromatization catalysts also are described.

A METHOD OF TREATING A ZEOLITE WITH AN ALUMINUM COMPOUND TO PREPARE A CATALYST FOR THE PRODUCTION OF AROMATICS AND THE CATALYST MADE THEREFROM

In an embodiment, a process of making a catalyst can comprise contacting a zeolite with an aluminum solution comprising an aluminum compound at a pH of 2 to 6; calcining the zeolite to form the catalyst; wherein the catalyst comprises 0.1 to 5 wt % aluminum based on the total weight of the catalyst excluding any binder or extrusion aide. In an embodiment, a process of aromatizing methane can comprise aromatizing a feed comprising methane in the presence of the catalyst under aromatization conditions.

Exhaust purification filter

Provided is a GPF capable of exhibiting better than conventional three-way purification function. A gasoline particulate filter (GPF) that is provided in an exhaust pipe of an engine and that performs purification by capturing particulate matter (PM) in exhaust gas is provided with a filter substrate in which a plurality of cells extending from an exhaust gas inflow-side end face to an outflow-side end face are defined by porous partition walls and in which openings at the inflow-side end face and openings at the outflow-side end face of the cells are alternately sealed; and a three-way catalyst (TWC) supported by the partition wall. The three-way catalyst is the GPF comprising a catalytic metal containing at least Rh, and a composite oxide having an oxygen storage capacity and containing Nd and Pr in a crystal structure.

Low-Temperature Oxidation Catalyst With Particularly Marked Hydrophobic Properties ForThe Oxidation Of Organic Pollutants

The present invention relates to a catalyst comprising a macroporous noble metal-containing zeolite material and a porous SiO-containing binder, wherein the catalyst has a proportion of micropores of more than 70%, based on the total pore volume of the catalyst. The invention is additionally directed to a process for preparing the catalyst and to the use of the catalyst as an oxidation catalyst. 112-. (canceled)13. A method of purifying exhaust , the method comprising:providing an exhaust gas containing an organic pollutant; a microporous noble metal-containing zeolite material, the zeolite material having less than 2 mol. % aluminium, the zeolite material being selected from zeolites of the types AFI, AEL, BEA, CHA, EUO, FAU, FER, KFI, LTL, MAZ, MOR, MEL, MTW, OFF, TON and MFI, the noble metal being selected from the group consisting of rhodium, iridium, palladium, platinum, ruthenium, osmium, gold and silver and combinations thereof; and', {'sub': '2', 'a porous SiO-containing binder having less than 0.04 wt % aluminium,'}, 'wherein the catalyst has a proportion of micropores having a diameter of less than 1 nm of more than 70% relative to the total pore volume of the catalyst., 'oxidizing the exhaust gas with a catalyst under conditions sufficient to oxidize the organic pollutant, the catalyst comprising'}14. The method according to claim 13 , wherein the exhaust gas is an exhaust gas from a combustion process.15. The method according to claim 13 , wherein the exhaust gas is an exhaust gas from a power plant.16. The method according to claim 13 , wherein the exhaust gas is an exhaust gas from an industrial process.17. The method according to claim 13 , wherein the oxidation is performed at a temperature below 300° C.18. The method according to claim 13 , wherein the organic pollutant is a solvent-type organic pollutant.19. The method according to claim 13 , wherein the organic pollutant is a paraffin claim 13 , an olefin claim 13 , an aldehyde or an aromatic.20. ...

Manganese-Containing Diesel Oxidation Catalyst

An oxidation catalyst composite, methods, and systems for the treatment of exhaust gas emissions from a diesel engine are described. More particularly, an oxidation catalyst composite including a first washcoat layer comprising a Pt component and a Pd component, and a second washcoat layer including a refractory metal oxide support containing manganese, a zeolite, and a platinum component is described.

PROCESS FOR PREPARING A MESOPORIZED CATALYST, CATALYST THUS OBTAINED AND USE THEREOF IN A CATALYTIC PROCESS

A hydroconversion catalyst obtained by the process described, comprising a mesoporized zeolite with healed zeolitic structure, containing at least one network of micropores and at least one network of mesopores, having an atomic Si/Al ratio within the zeolite framework of greater than or equal to 2.3 and showing reduced amount of extra-framework aluminium with regard to that of a mesoporized zeolite with no healed zeolitic structure. 3. A process for the hydroconversion of a hydrocarbon feedstock claim 1 , wherein said feedstock to be treated is placed in contact with the hydroconversion catalyst according to . This application is a continuation application of U.S. application Ser. No. 14/347,159, filed on Mar. 25, 2014, which is a National Stage of International Application No. PCT/EP2012/071017 filed Oct. 24, 2012, claiming priority based on French Patent Application No. 11 59618 filed Oct. 24, 2011 and French Patent Application No. 11 62520 filed Dec. 29, 2011, the contents of all of which are incorporated herein by reference in their entirety.The invention relates to a process for preparing a mesopores-containing catalyst, the catalyst thus obtained and the use of the catalyst thus obtained in an industrial process.The catalyst described here comprises a mesoporized zeolite and may be used in many hydroconversion processes, in particular, in the hydrocracking process.The various zeolites are distinguished by different structures and properties, and are well known in the art. A few structures commonly used in the field of catalysis are disclosed in WO2010/072976, among them some are given below.Zeolite Y (FAU) is a three-dimensional zeolite with large pores, whose structure has large cavities interconnected by channels formed from 12-membered rings, each ring presenting 12 (Si and Al) cations and 12 O anions.Beta zeolite (BEA) is a three-dimensional zeolite with large pores comprising pores formed from 12-membered rings in all directions.Zeolite ZMS-5 (MFI) is a ...

COPPER CHA ZEOLITE CATALYSTS

Zeolite catalysts and systems and methods for preparing and using zeolite catalysts having the CHA crystal structure are disclosed. The catalysts can be used to remove nitrogen oxides from a gaseous medium across a broad temperature range and exhibit hydrothermal stable at high reaction temperatures. The zeolite catalysts include a zeolite carrier having a silica to alumina ratio from about 15:1 to about 256:1 and a copper to alumina ratio from about 0.25:1 to about 1:1. 1. A catalyst article comprising a honeycomb wall-flow filter substrate having an SCR catalyst composition coated on the wall flow filter comprising a CuCHA zeolite catalyst having a mole ratio of silica to alumina greater than about 15 and an atomic ratio of copper to aluminum exceeding about 0.25 , the SCR catalyst favoring reduction of nitrogen oxides and an ammonia oxidation catalyst coated on the wall flow filter , the ammonia oxidation catalyst favoring the oxidation of ammonia and comprising a CuCHA zeolite catalyst having a mole ratio of silica to alumina greater than about 15 and an atomic ratio of copper to aluminum exceeding about 0.25.2. The catalyst article of claim 1 , wherein the ammonia oxidation catalyst comprises a platinum group metal component.3. The catalyst article of claim 2 , wherein the platinum group metal component comprises Pt.4. The catalyst article of claim 3 , wherein the platinum content is between 0.02% and 1.0% by weight of the catalyst claim 3 , and the platinum loading is from about 0.5 to about 5 g/in.5. The catalyst article of claim 3 , wherein at least a portion of the wall-flow filter substrate is coated with Pt and CuCHA adapted to oxidize ammonia in the exhaust gas stream.6. The catalyst article of claim 1 , wherein the ammonia oxidation catalyst comprises SSZ-13 with at least a portion of a platinum group metal component on the washcoat.7. The catalyst article of claim 1 , wherein the wherein the wall flow filter substrate comprises a ceramic.8. The ...

MULTIPLE ZEOLITE HYDROCARBON TRAPS

Hydrocarbon (HC) traps are disclosed. The HC trap may include a first zeolite material having an average pore diameter of at least 5.0 angstroms and configured to trap hydrocarbons from an exhaust stream and to release at least a portion of the trapped hydrocarbons at a temperature of at least 225° C. The HC trap may also include a second zeolite material having an average pore diameter of less than 5.0 angstroms or larger than 7.0 angstroms. One or both of the zeolite materials may include metal ions, such as transition, Group 1A, or platinum group metals. The HC trap may include two or more discrete layers of zeolite materials or the two or more zeolite materials may be mixed. The multiple zeolite HC trap may form coke molecules having a relatively low combustion temperature, such as below 500° C. 1. A hydrocarbon trap , comprising:a first zeolite material having an average pore diameter of at least 5.0 angstroms and configured to trap hydrocarbons from an exhaust stream and to release at least a portion of the trapped hydrocarbons at a temperature of at least 225° C.; anda second zeolite material having an average pore diameter of less than 5.0 angstroms or larger than 7.0 angstroms.2. The trap of claim 1 , wherein the second zeolite material is configured to react with the hydrocarbons that are released from the first zeolite material to form coke molecules.3. The trap of claim 2 , wherein the second zeolite material is configured to form coke molecules having a combustion temperature of less than 500° C.4. The trap of claim 1 , wherein the first zeolite material is a beta (BEA) claim 1 , mordenite (MOR) or ZSM-5 (MFI) type zeolite.5. The trap of claim 1 , wherein the second zeolite material is a chabazite (CHA) claim 1 , ferrierite (FER) claim 1 , or ultra-stable Y (FAU) type zeolite.6. The trap of claim 1 , wherein the first zeolite material has a Si/Alratio of 20-50.7. The trap of claim 1 , wherein the first zeolite material includes from 0.1 to 10 wt. % ...

ALLOYED ZEOLITE CATALYST COMPONENT, METHOD FOR MAKING AND CATALYTIC APPLICATION THEREOF

The presently disclosed and claimed inventive concept(s) generally relates to a solid catalyst component comprising a zeolite with a modifier and at least one Group VIII meal alloyed with at least one transition metal. The presently disclosed and claimed inventive concept(s) further relates to a method of making the solid catalyst component and a process of converting mixed waste plastics into low molecular weight organic compounds using the solid catalyst component. 111.-. (canceled)12. A method of preparing a solid catalyst component , comprising:(a) dissolving a noble metal precursor and a transition metal precursor, respectively into water to form solutions, and mixing the obtained solutions with each other to obtain a metal salt solution;(b) mixing a modified zeolite with a solvent to obtain a zeolite slurry, wherein the zeolite is selected from the group consisting of chabazite, erionite, faujasite, ferrierite, mordenite, offretite, TEA-mordenite, zeolite A, zeolite beta, zeolite boron beta, zeolite L, zeolite X, zeolite Y, zeolite ZK-5, Breck-6, HZSM-5, ITQ-1, ITQ-21, MCM-22, MCM-36, MCM-39, MCM-41, MCM-48, PSH-3, SUZ-4, EU-1, SAPO-5, SAPO-11, SAPO-34, (S)AIPO-31, SSZ-23, SSZ-32, TUD-1, VPI-5, ZSM-4, ZSM-5, ZSM-8, ZSM-11, ZSM-12, ZSM-20, ZSM-21, ZSM-22, ZSM-23, ZSM-34, ZSM-35, ZSM-38, ZSM-48, ZSM-50, ZSM-57, and combinations thereof;(c) contacting the metal salt solution with the zeolite slurry to form a mixture;(d) adjusting a pH of the mixture to obtain a product;(e) heating the product to form catalyst particles;(f) isolating and washing the catalyst particles; and(g) heat-treating the catalyst particles obtained from the step (f) to form the solid catalyst component.13. The method of claim 12 , wherein the step of contacting the metal salt solution with the zeolite slurry of step (c) includes wet impregnation claim 12 , incipient wetness impregnation claim 12 , ion exchange claim 12 , framework substitution claim 12 , physical vapor deposition claim 12 , ...

Method of Forming a Catalyst with an Ion-Modified Binder

An alkylation catalyst having a zeolite catalyst component and a binder component providing mechanical support for the zeolite catalyst component is disclosed. The binder component is an ion-modified binder that can include metal ions selected from the group consisting of Co, Mn, Ti, Zr, V, Nb, K, Cs, Ga, B, P, Rb, Ag, Na, Cu, Mg, Fe, Mo, Ce, and combinations thereof. The metal ions reduce the number of acid sites on the zeolite catalyst component. The metal ions can range from 0.1 to 50 wt % based on the total weight of the ion-modified binder. Optionally, the ion-modified binder is present in amounts ranging from 1 to 80 wt % based on the total weight of the catalyst. 1. An alkylation catalyst , comprising:a catalyst component; anda binder component providing mechanical support for the catalyst component;wherein the binder component comprises an ion-modified binder comprising metal ions;wherein the metal ions are selected from the group consisting of Co, Mn, Ti, Zr, V, Nb, K, Cs, Ga, B, P, Rb, Ag, Na, Cu, Mg, Fe, Mo, Ce, and combinations thereof; andwherein the metal ions reduce the number of acid sites on the catalyst component.2. The catalyst of claim 1 , wherein the ion-modified binder comprises metal ions in amounts ranging from 0.1 to 50 wt % based on the total weight of the ion-modified binder.3. The process of claim 1 , wherein the ion-modified binder comprises metal ions in amounts ranging from 0.1 to 20 wt % based on the total weight of the ion-modified binder.4. The catalyst of claim 1 , wherein the ion-modified binder is present in amounts ranging from 1 to 80 wt % based on the total weight of the catalyst.5. The catalyst of claim 1 , wherein the ion-modified binder is present in amounts ranging from 5 to 60 wt % based on the total weight of the catalyst.6. The catalyst of claim 1 , wherein the metal ions on the ion-modified binder alters the spacial structure of the catalyst.7. The catalyst of claim 1 , wherein the binder comprises amorphous silica or ...

CATALYST DESIGN FOR HEAVY-DUTY DIESEL COMBUSTION ENGINES

Disclosed are washcoats, coated substrates formed from such washcoats, and catalytic converters for use in diesel applications, such as heavy duty diesel applications. Methods of preparing the coated substrates are also disclosed. 196-. (canceled)97. A coated substrate comprising:a) a substrate;b) a first washcoat layer on the substrate comprising zeolites;c) a second washcoat layer on the substrate comprising a first catalytically active material comprising platinum and palladium, wherein the first catalytically active material comprises first composite nanoparticles embedded within porous micron-sized carrier particles; wherein the first composite nanoparticles comprises a first support nanoparticle and a first catalytic nanoparticle, wherein the first catalytic nanoparticle comprises a platinum-palladium alloy; andd) a third washcoat layer on the substrate comprising a second catalytically active material comprising platinum and palladium; wherein the second catalytically active material comprises second composite nanoparticles embedded within porous micron-sized carrier particles; wherein the second composite nanoparticles comprises a second support nanoparticle and a second catalytic nanoparticle, wherein the second catalytic nanoparticle comprises a platinum-palladium alloy;wherein the second washcoat layer is deposited on the first washcoat layer, and the third washcoat layer is deposited on the second washcoat layer.98. The coated substrate of claim 97 , wherein the platinum-palladium alloy of the first catalytic nanoparticle comprises a platinum:palladium ratio of less than about 4:1 Pt:Pd.99. The coated substrate of claim 98 , wherein the platinum-palladium alloy of the first catalytic nanoparticle comprises a platinum:palladium ratio of about 1:1 to about 4:1 Pt:Pd.100. The coated substrate of claim 97 , wherein the platinum-palladium alloy of the second catalytic nanoparticle comprises a platinum:palladium ratio of greater than about 4:1 Pt:Pd.101. The ...

Process for removing oxidisable gaseous compounds from a gas mixture by means of a platinum-containing oxidation catalyst

Process for catalytic oxidative removal of at least one oxidisable gaseous compound from a gas mixture comprising the at least one oxidisable gaseous compound as well as oxygen through the use of an oxidation catalyst, whereby the gas mixture is not a combustion flue gas, characterised in that the oxidation catalyst was produced through the use of at least one exothermic-decomposing platinum precursor.

PASSIVE NOx ADSORBER

A NOx absorber catalyst for treating an exhaust gas from a diesel engine. The NOx absorber catalyst comprises a first region comprising a NOx absorber material comprising a molecular sieve catalyst, and a second region comprising a nitrogen dioxide reduction material; and a substrate having an inlet end and an outlet end.

NH3 OVERDOSING-TOLERANT SCR CATALYST

Catalysts having a blend of platinum on a support with low ammonia storage with a Cu-SCR catalyst or an Fe-SCR catalyst are disclosed. The catalysts can also contain one or two additional SCR catalysts. The catalysts can be present in one of various configurations. Catalytic articles containing these catalysts are disclosed. The catalytic articles are useful for selective catalytic reduction (SCR) of NOx in exhaust gases and in reducing the amount of ammonia slip. Methods for producing such articles are described. Methods of using the catalytic articles in an SCR process, where the amount of ammonia slip is reduced, are also described. 1. A catalytic article comprising a substrate having an inlet and outlet and coated with a first coating comprising a blend of (a) platinum on a molecular sieve support with low ammonia storage with (b) a first SCR catalyst; a second coating comprising a second SCR catalyst; wherein the second coating at least partially overlaps the first coating , where the ratio of the amount of the first SCR catalyst to the amount of platinum on the support with low ammonia storage is in the range of 10:1 to 50:1 , inclusive , based on the weight of these components.2. The catalytic article of claim 1 , wherein the first SCR catalyst is a Cu-SCR catalyst or a Fe-SCR catalyst.3. The catalytic article of claim 1 , where the second coating completely overlaps the first coating.4. The catalyst article of claim 1 , wherein the second coating overlaps at least 20% of the length of the first coating along an axis from the inlet to the outlet.5. The catalytic article of claim 1 , where the support comprises a silica or a zeolite with silica-to-alumina ratio of at least one of: (a) ≥100 claim 1 , (b) ≥200 claim 1 , (c) ≥250 claim 1 , ≥300 claim 1 , (d) ≥400 claim 1 , (e) ≥500 claim 1 , (f) ≥750 and (g) ≥1000.6. The catalyst of claim 1 , where the blend further comprises at least one of palladium (Pd) claim 1 , gold (Au) claim 1 , silver (Ag) claim 1 , ...

Novel oxidation catalyst, the process for the preparation thereof and green process for selective aerobic oxidation

Described herein is a novel, cost effective, stable and recyclable catalyst composition i.e. A-B-OMS, wherein ‘A’ is selected from noble and transition metals; ‘B’ is selected from alkali or alkaline earth metals; and OMS is octahedral molecular sieve which includes synthetic todorokite (OMS-1) and cryptomelane (OMS-2); and characterization thereof. Further the invention provides base free green process for selective aerobic oxidation of 5-hydroxymethylfurfural (HMF) catalysed by said catalyst composition under optimized reaction conditions to obtain high yield of 2,5-furandicarboxylic acid (FDCA) in a shorter span of time. Invention also provides for selective oxidation of glucose to Gluconic Acid, furfural to furoic Acid and glycerol to Glyceric acid. Invention can also applicable for the selective oxidation of hexoses, pentoses, disaccharides to corresponding acids.

CATALYTIC ARTICLES

Catalytic articles comprising a substrate having a catalytic coating thereon, the catalytic coating comprising a catalytic layer having a thickness and an inner surface proximate to the substrate and an outer surface distal to the substrate; where the catalytic layer comprises a noble metal component on support particles and where the concentration of the noble metal component towards the outer surface is greater than the concentration towards the inner surface are highly effective towards treating exhaust gas streams of internal combustion engines. The articles are prepared via a method comprising providing a first mixture comprising micron-scaled support particles and applying the first mixture to a substrate to form a micro-particle layer; providing a second mixture comprising nano-scaled support particles and a noble metal component having an initial pH and applying the second mixture to the micro-particle layer and calcining the substrate. 1. A catalytic article comprising: a catalytic layer having a thickness, an inner surface proximate to the substrate and an outer surface distal to the substrate,', 'wherein the catalytic layer comprises a noble metal component on support particles and wherein the concentration of the noble metal component towards the outer surface is greater than the concentration towards the inner surface., 'a substrate having a catalytic coating thereon, the catalytic coating comprising2. A catalytic article according to claim 1 , wherein at least 50 wt % of the noble metal component resides in the outer one fifth of the thickness of the catalytic layer.3. A catalytic article according to claim 1 , wherein at least 70 wt % of the noble metal component resides in the outer one half of the thickness of the catalytic layer.4. A catalytic article according to claim 1 , wherein where ≥80 wt % of the noble metal resides in the outer 20% of the thickness of the catalytic layer.5. A catalytic article according to claim 1 , wherein the noble metal ...

NITROGEN OXIDES AND HYDROCARBON STORAGE CATALYST AND METHODS OF USING THE SAME

A nitrogen oxides (NO) and hydrocarbon (HC) storage catalyst for treating an exhaust gas flow is provided. The NOand HC storage catalyst includes (a) a zeolite, (b) noble metal atoms, and (c) a metal oxide, a non-metal oxide, or a combination thereof. One or more of the noble metal atoms is present in a complex with the metal oxide, the non-metal oxide or a combination thereof. The complex is dispersed within a cage of the zeolite. Methods of preparing the NOand HC storage catalyst and methods of using the NOand HC storage catalyst for treating an exhaust gas stream flowing from a vehicle internal combustion engine during a period following a cold-start of the engine are also provided. 1. A nitrogen oxides (NO) and hydrocarbon (HC) storage catalyst for treating an exhaust gas flow comprising:(a) a zeolite comprising a cage and having a framework structure selected from the group consisting of BEA, MFI, CHA, AEI, EMT, ERI, MOR, MER, FER, FAU, LEV, MWW, CON, EUO, and combinations thereof;(b) noble metal atoms selected from the group consisting of Pd atoms, Pt atoms, Rh atoms, Ag atoms, Ru atoms, Au atoms, Ir atoms and combinations thereof; and(c) a metal oxide, a non-metal oxide, or a combination thereof, wherein the metal of the metal oxide is selected from the group consisting of alkali metals, alkaline earth metals, transitions metals, lanthanides, and combinations thereof and the non-metal of the non-metal oxide is phosphorus; andwherein one or more of the noble metal atoms are present in a complex with: (i) the metal oxide; (ii) the non-metal oxide; or (iii) the metal oxide and the non-metal oxide; and wherein the complex is dispersed within the cage of the zeolite.2. The storage catalyst of claim 1 , wherein the noble metal atoms are present in an amount of about 0.1 wt. % to about 10 wt. % based on total weight of the NOand HC storage catalyst.3. The storage catalyst of claim 1 , wherein the metal oxide claim 1 , the non-metal oxide claim 1 , or a combination ...

CATALYTIC ARTICLES

Catalytic articles comprising a substrate having a catalytic coating thereon, the catalytic coating comprising a catalytic layer having a thickness and an inner surface proximate to the substrate and an outer surface distal to the substrate; where the catalytic layer comprises a noble metal component on support particles and where the concentration of the noble metal component towards the outer surface is greater than the concentration towards the inner surface are highly effective towards treating exhaust gas streams of internal combustion engines. The articles are prepared via a method comprising providing a first mixture comprising micron-scaled support particles and applying the first mixture to a substrate to form a micro-particle layer; providing a second mixture comprising nano-scaled support particles and a noble metal component having an initial pH and applying the second mixture to the micro-particle layer and calcining the substrate. 111-. (canceled)12. A method of treating an exhaust stream of an internal combustion engine comprising contacting the exhaust stream with a catalytic article comprising: a catalytic layer having a thickness, an inner surface proximate to the substrate, and an outer surface distal to the substrate,', 'wherein the catalytic layer comprises a noble metal component on support particles, and wherein the concentration of the noble metal component towards the outer surface is greater than the concentration towards the inner surface., 'a substrate having a catalytic coating thereon, the catalytic coating comprising13. A method of making a catalytic article comprising:providing a first mixture comprising micron-scaled support particles and applying the first mixture to a substrate to form a micro-particle layer;providing a second mixture comprising nano-scaled support particles and a noble metal component having an initial pH and applying the second mixture to the micro-particle layer; andcalcining the substrate.14. The method ...

DIESEL OXIDATION CATALYST

An oxidation catalyst composite, methods, and systems for the treatment of exhaust gas emissions from a diesel engine are described. More particularly, described is an oxidation catalyst composite including a first oxidation component comprising a first refractory metal oxide support, palladium (Pd) and platinum (Pt); a NOstorage component comprising one or more of alumina, silica, titania, ceria, or manganese; and a second oxidation component comprising a second refractory metal oxide, a zeolite, and Pt. The oxidation catalyst composite is sulfur tolerant, adsorbs NOand thermally releases the stored NOat temperature less than 350° C. 120-. (canceled)21. A method for treating a diesel engine exhaust gas stream , the method comprising contacting an exhaust gas stream with an oxidation catalyst composite , and passing the exhaust gas stream through a downstream SCR catalyst , wherein the oxidation catalyst composite comprises:a carrier substrate; and a first oxidation component comprising at least one platinum group metal (PGM) and a first refractory metal oxide, wherein the first oxidation component is substantially free of zeolite;', {'sub': 'x', 'a NOstorage component comprising one or more of alumina, silica, titania, ceria, and manganese; and'}, 'a second oxidation component comprising a second refractory metal oxide, a zeolite, and at least one PGM., 'a catalytic coating on at least a portion of the carrier substrate, the catalytic coating including22. The method of claim 21 , wherein the downstream SCR catalyst is disposed on a wall flow filter monolith.23. A system for treatment of a lean burn engine exhaust gas stream comprising hydrocarbons claim 21 , carbon monoxide claim 21 , nitrogen oxides claim 21 , particulate matter claim 21 , and other exhaust components claim 21 , the system comprising:an exhaust conduit in fluid communication with a lean burn engine via an exhaust manifold;an oxidation catalyst composite; anda catalyzed soot filter and an SCR ...

EXHAUST EMISSION REDUCTION SYSTEM HAVING AN HC-TRAP AND NOX-TRAP COMBINATION DESIGNED FOR OPERATING UNDER STRATEGIC LEAN CONDITIONS

Methods and systems are featured for reducing harmful exhaust gas components of combustion devices such as gasoline-powered combustion engines (e.g., predominately stoichiometric running engines). The methods and systems include an underbody combination of a hydrocarbon trap (HCT), suited for cold start hydrocarbon adsorption, as well as an associated NOx trap. The system is inclusive of a control unit for extending a lean exhaust condition reaching the desorbing HCT as to avoid a deficiency in oxygen during the time period of HCT desorption. The system is also inclusive of one or more TWCs as in one associated with the underbody HCT-NOx-trap combination and/or one positioned in a close coupled position. Platinum group metals as in Pd, Rh and Pt are also featured on one, two or all three of the HCT, NOx-trap, and TWC when present. 1. An exhaust emission reduction system suited for use with a gasoline running engine , comprising:an exhaust treatment apparatus having an underbody positioned NOx-trap and HC-trap combination;a control unit operable to extend a lean exhaust condition into a period of desorption of hydrocarbons trapped by the HC-trap as to promote hydrocarbon emission reduction during the desorption period.2. The system of wherein the NOx-trap and HC-trap combination includes a substrate support onto which the HC-trap is layered and over which HC-trap layer the NOx-trap is layered.3. The system of wherein the exhaust treatment apparatus further comprises one or more TWC components.4. The system of wherein the exhaust treatment apparatus comprises both an upstream close coupled TWC component and a downstream claim 3 , underbody TWC component claim 3 , with the downstream TWC being in a common support canister with NOx-trap and HC-trap components of the NOx-trap and HC-trap combination.5. The system of wherein the NOx-trap and HC-trap combination includes a substrate support onto which the HC-trap is layered and over which HC-trap layer the NOx-trap is ...

Oxidation catalyst for internal combustion engine exhaust gas treatment

The invention provides an exhaust gas cleaning oxidation catalyst and in particular to an oxidation catalyst for cleaning the exhaust gas discharged from internal combustion engines of compression ignition type (particularly diesel engines). The invention further relates to a catalysed substrate monolith comprising an oxidising catalyst on a substrate monolith for use in treating exhaust gas emitted from a lean-burn internal combustion engine. In particular, the invention relates to a catalysed substrate monolith comprising a first washcoat coating and a second washcoat coating, wherein the second washcoat coating is disposed in a layer above the first washcoat coating.

PASSIVE NITROGEN OXIDE ADSORBER

The present invention relates to a catalyst, comprising a carrier substrate of the length (L) which extends between two carrier substrate ends (a and b) and has two coating zones (A and B), wherein the coating zone (A) comprises a zeolite and palladium and, proceeding from the carrier substrate end (a), extends on a part of the length (L), the coating zone (B) comprises the same components as coating zone (A) and platinum and, proceeding from the carrier substrate end (b), extends on a part of the length (L), wherein L=L+L, wherein LA denotes the length of the coating zone (A) and Ldenotes the length of the coating zone (B). The invention also relates to an exhaust system containing said catalyst. 1. Catalyst comprising a carrier substrate of length L , which extends between two carrier substrate ends a and b and comprises two coating zones A and B , whereincoating zone A comprises a zeolite and palladium and extends from carrier substrate end a along a part of length L,coating zone B comprises the same components as coating zone A and platinum and extends starting from carrier substrate end b along a part of length L, wherein{'sub': A', 'B', 'A', 'B, 'L=L+Lapplies, wherein Lis the length of the coating zone A and Lis the length of the coating zone B.'}2. Catalyst according to claim 1 , characterized in that the largest channels of the zeolite are formed by 6 tetrahedrally coordinated atoms and the zeolite belongs to structure types AFG claim 1 , AST claim 1 , DOH claim 1 , FAR claim 1 , FRA claim 1 , GIU claim 1 , LIO claim 1 , LOS claim 1 , MAR claim 1 , MEP claim 1 , MSO claim 1 , MTN claim 1 , NON claim 1 , RUT claim 1 , SGT claim 1 , SOD claim 1 , SVV claim 1 , TOL or UOZ.3. Catalyst according to claim 1 , characterized in that the largest channels of the zeolite are formed by 8 tetrahedrally coordinated atoms and the zeolite belongs to structure types ABW claim 1 , ACO claim 1 , AEI claim 1 , AEN claim 1 , AFN claim 1 , AFT claim 1 , AFV claim 1 , AFX claim 1 ...

EXHAUST GAS PURIFICATION SYSTEM

An exhaust gas purifier is disposed in an exhaust gas passage of an engine, and includes: a DPF for capturing PM contained in exhaust gas; an SCR catalyst provided downstream of the DPF in a direction of flow of the exhaust gas, and for reducing NOcontained in the exhaust gas for purification in the presence of NH; an inj ection unit provided between the DPF and the SCR catalyst, and for supplying urea to the SCR catalyst so as to supply NHto the SCR catalyst; and an AMOX provided downstream of the SCR catalyst in the direction of flow of the exhaust gas, and for removing NHhaving passed through the SCR catalyst. The DPF does not contain Pt or Pd, and contains Rh. The AMOX contains Pt. 1. An exhaust gas purification system disposed in an exhaust gas passage of an engine , comprising:a particulate filter configured to capture particulates contained in exhaust gas;{'sub': 'x', 'an SCR catalyst provided downstream of the particulate filter in a direction of flow of the exhaust gas, and configured to reduce NOcontained in the exhaust gas for purification in the presence of a reducing agent;'}an injection unit provided between the particulate filter and the SCR catalyst, and configured to supply the reducing agent or a precursor of the reducing agent to the SCR catalyst so as to supply the reducing agent to the SCR catalyst; anda reducing agent oxidation catalyst provided downstream of the SCR catalyst in the direction of flow of the exhaust gas, and configured to remove the reducing agent having passed through the SCR catalyst, whereinthe particulate filter contains a Zr-based composite oxide which does not contain a catalytic noble metal or Ce, and a Rh-doped Ce-containing Zr-based composite oxide, and does not contain Pt or Pd as a catalytic noble metal, and the reducing agent oxidation catalyst contains Pt.2. The exhaust gas purification system of claim 1 , whereinthe amount of Pt contained in the reducing agent oxidation catalyst is 0.1-6.0 g/L with respect to the ...

Catalyst useful for simultaneous removal of carbon monoxide and hydrocarbons from oxygen-rich gases comprises tin oxide and palladium loaded on carrier oxide

Catalyst comprises tin oxide and palladium loaded on carrier oxide in a roentgenographically amorphous or a nanoparticular form. Independent claims are included for the following: (1) process for manufacturing of catalyst involving bringing tin compounds and palladium compounds into contact with a carrier oxide; (2) a process for removal of harmful substances from exhaust gases of lean combustion engines by using a catalyst involving oxidation of carbon monoxide and hydrocarbons as well as the simultaneous removal of carbon black particles by oxidation.

Catalyst for purifying diesel engines exhaust gases and process for its preparation

Process of synthesis gas conversion to liquid fuels using mixture of synthesis gas conversion catalyst and dual functionality catalyst

A process is disclosed for converting a feed comprising synthesis gas to liquid hydrocarbons within a single reactor at essentially common reaction conditions. The synthesis gas contacts a catalyst bed comprising a mixture of a synthesis gas conversion catalyst on a support containing an acidic component and a dual functionality catalyst including a hydrogenation component and a solid acid component. The hydrocarbons produced are liquid at about 0° C., contain at least 25% by volume C 10+ and are substantially free of solid wax.

Process of synthesis gas conversion to liquid hydrocarbon mixtures using a catalyst system containing ruthenium and an acidic component

The disclosure relates to a method of performing a synthesis gas conversion reaction in which synthesis gas contacts a catalyst system including a mixture of ruthenium loaded Fischer-Tropsch catalyst particles and at least one set of catalyst particles including an acidic component promoted with a noble metal, e.g., Pt or Pd. The reaction occurs at conditions resulting in a hydrocarbons product containing 1-15 weight % CH 4 , 1-15 weight % C 2 -C 4 , 70-95 weight % C 5+ , 0-5 weight % C 21+ normal paraffins, and 0-10 weight % aromatic hydrocarbons.

制备和形成负载活性金属的催化剂和前体的方法

本发明涉及制备负载型催化剂的方法，所述方法包括以下步骤：（i）提供多孔催化剂载体，其包括具有包括一个或多个孔的内部孔结构的框架，所述内部孔结构包括沉淀剂；（ii）使催化剂载体与含有催化活性金属的溶液或胶态悬浮液接触，使得在与沉淀剂接触时，含有催化活性金属的颗粒沉淀在催化剂载体的框架的内部孔结构中。本发明还涉及根据以上方法制备的负载型催化剂，以及该催化剂在催化化学反应中的用途，例如，在烃类的费托合成中的用途。

Zeolite Supported Cobalt Hybrid Fischer-Tropsch Catalyst

A method for forming a catalyst for synthesis gas conversion comprises impregnating a zeolite extrudate using a solution, for example, a substantially non-aqueous solution, comprising a cobalt salt to provide an impregnated zeolite extrudate and activating the impregnated zeolite extrudate by a reduction-oxidation-reduction cycle.

Ruthenium hybrid fischer-tropsch catalyst, and methods for preparation and use thereof

Disclosed is a method of forming a hybrid Fischer-Tropsch catalyst extrudate for use in synthesis gas conversion reactions. The method includes extruding a mixture of ruthenium loaded metal oxide support particles, particles of an acidic component and a binder sol to form an extrudate. The resulting extrudate contains from about 0.1 to about 15 weight percent ruthenium based on the weight of the extrudate. In a synthesis gas conversion reaction, the extrudate is contacted with a synthesis gas having a H 2 to CO molar ratio of 0.5 to 3.0 at a reaction temperature of 160° C. to 300° C., a total pressure of 3 to 35 atmospheres, and an hourly space velocity of 5 to 10,000 v/v/hour, resulting in hydrocarbon products containing 1-15 weight % CH 4 ; 1-15 weight % C 2 -C 4 ; 70-95 weight % C 5 + ; 0-5 weight % C 21+ normal paraffins; and 0-10 weight % aromatic hydrocarbons.

Production of hydrocarbons from synthesis gas

A process is described for synthesis of saturated hydrocarbons from syngas. The process contains a one stage catalyst system and/or multi-stage catalyst system for use in the catalysed production of saturated hydrocarbons from carbon oxides and hydrogen. The process decreases amounts of undesirable low carbon number hydrocarbons, such as C 3 and lower, and provides high octane number hydrocarbons boiling in the range of gasoline.

Modified zeolite catalyst useful for the conversion of paraffins, olefins and aromatics in a mixed feedstock into isoparaffins and a process thereof

The invention relates to a modified zeolite catalyst, useful for the conversion of paraffins, olefins and aromatics in a mixed feedstock such as FCC gasoline that contain high content of olefin, aromatic and n-paraffin into isoparaffins. The invention further relates to the use of such a catalyst, for example but not limited to, in a process for the conversion of paraffins, olefins and aromatics in a mixed feedstock into the product having high amount of branched paraffins with decreased aromatics and olefins, a useful gasoline blend, with negligible production of lighter gases.

Process of synthesis gas conversion to liquid fuels using mixture of synthesis gas conversion catalyst and dual functionality catalyst

A process is disclosed for converting a feed comprising synthesis gas to liquid hydrocarbons within a single reactor at essentially common reaction conditions. The synthesis gas contacts a catalyst bed comprising a mixture of a synthesis gas conversion catalyst on a support containing an acidic component and a dual functionality catalyst including a hydrogenation component and a solid acid component. The hydrocarbons produced are liquid at about 0° C., contain at least 25% by volume C 10+ and are substantially free of solid wax.

Methods of preparation and forming supported active metal catalysts and precursors

The invention relates to a method of preparing a supported catalyst, which method comprises the steps of; (i) providing a porous catalyst support comprising a framework having an internal pore structure comprising one or more pores which internal pore structure comprises a precipitant; (ii) contacting the catalyst support with a solution or colloidal suspension comprising a catalytically active metal such that, on contact with the precipitant, particles comprising the catalytically active metal are precipitated within the internal pore structure of the framework of the catalyst support. The invention also relates to supported catalysts made according to the above method, and to use of the catalysts in catalysing chemical reactions, for example in the Fischer Tropsch synthesis of hydrocarbons.

Process for producing aromatic hydrocarbon compounds and liquefied petroleum gas from hydrocarbon feedstock

Fisclosed are a process for producing aromatic hydrocarbon compounds and liquefied petroleum gas (LPG) from a hydrocarbon feedstock having boiling points of 30-250 °C and a catalyst useful therefor. In the presence of said catalyst, aromatic components in the hydrocarbon feedstock are converted to BTX-enriched components of liquid phase through hydrodealkylation and/or transalkylation, and non-aromatic components are converted to LPG-enriched gaseous materials through hydrocracking. The products of liquid phase may be separated as benzene, toluene, xylene, and C9 or higher aromatic compounds, respectively according to their different boiling points, while LPG is separated from the gaseous products, in a distillation tower.