СПОСОБ ТЕРМИЧЕСКОГО ДОЖИГАНИЯ ОТХОДЯЩИХ ГАЗОВ ИЗ ПРОЦЕССА ПОЛУЧЕНИЯ АКРОЛЕИНА И ПРОЦЕССА ПОЛУЧЕНИЯ СИНИЛЬНОЙ КИСЛОТЫ

Описан способ термического дожигания отходящих газов, образующихся при получении акролеина в газофазном процессе, и термического дожигания отходящих газов, образующихся при получении синильной кислоты в газофазном процессе, отличающийся тем, что отходящие газы из процесса получения акролеина и отходящие газы из процесса получения синильной кислоты подают на совместное термическое дожигание. 6 з.п. ф-лы, 5 табл., 3 ил.

СПОСОБ И УСТРОЙСТВО УДАЛЕНИЯ ВОДЫ И СИЛОКСАНОВ ИЗ ГАЗА

Для удаления силоксанов из газа, включающего силоксаны и воду, осуществляют расширение газа с тем, чтобы охладить газ и заморозить, по меньшей мере, части воды в газе, и удаление силоксанов и замороженной воды из расширенного и охлажденного газа. Способ может также содержать сжатие газа до его расширения. Этап расширения газа может содержать расширение его в турбине. Способ может также содержать использование механизма возбуждения для приведения в действие одного и обоих компрессора и турбины. Лед и силоксаны могут быть удалены из газа с помощью циклонного сепаратора. 5 н. и 47 з.п. ф-лы, 4 ил.

УСТРОЙСТВО И СПОСОБ ОБРАБОТКИ ГАЗА С ИСПОЛЬЗОВАНИЕМ НЕТЕРМИЧЕСКОЙ ПЛАЗМЫ И КАТАЛИТИЧЕСКОЙ СРЕДЫ

Изобретение относится к устройству и способу обработки окислительным разложением опасного газа. Устройство содержит проточный канал, по которому протекает подлежащий обработке газ, плазмогенерирующий блок, включающий в себя первый электрод, второй электрод, диэлектрический материал, которые расположены внутри проточного канала, и блок источника питания для подачи питания переменного тока с выходной частотой 0,5 кГц или выше, при этом между первым электродом и вторым электродом с помощью блока источника питания прикладывается напряжение, чтобы вызвать появление электрического разряда, за счет чего генерируется плазма, и каталитическую среду, которая предусмотрена в том положении, где находится плазма, генерируемая плазмогенерирующим блоком внутри проточного канала, предназначена для ускорения реакции с подлежащим обработке газом и имеет металлические каталитические частицы, находящиеся на неорганическом веществе. Изобретение обеспечивает эффективную обработку опасного газа при нормальной ...

РАЗДЕЛЕНИЕ И ХРАНЕНИЕ ТЕКУЧИХ СРЕД С ИСПОЛЬЗОВАНИЕМ ITQ-55

СИСТЕМА И СПОСОБ ДЛЯ ОЧИСТКИ ГАЗА

... 1. Способ очистки потока газа, включающий пропускание потока неочищенного газа для обработки через, по меньшей мере, один адсорбционный слой, содержащий, по меньшей мере, два слоя адсорбентов, выбранных из группы, состоящей из влагопоглотителя; цеолита или цеолита в его ионообменной форме, и активированного угля. ! 2. Способ по п.1, где данный поток газа представляет собой поток газообразного диоксида углерода. ! 3. Способ по п.1, где данный влагопоглотитель выбирают из группы, состоящей из цеолитов 4А, 5А, 13Х и NaY. ! 4. Способ по п.1, где данный цеолит представляет собой цеолит NaY или его ионообменные формы KY или KNaY. ! 5. Способ по п.1, где данный активированный уголь представляет собой пропитанный активированный уголь. ! 6. Способ по п.1, где дополнительно нагревают данный поток газа после прохождения потока газа через слой цеолита. ! 7. Способ по п.1, где пропускают данный неочищенный газ через единственный резервуар. ! 8. Способ по п.1, где пропускают данный неочищенный газ через ...

СПОСОБ ОБРАБОТКИ СОДЕРЖАЩЕЙ РТУТЬ И КИСЛЫЕ ГАЗЫ ГАЗОВОЙ СМЕСИ С ВЫСОКИМ СОДЕРЖАНИЕМ УГЛЕВОДОРОДОВ

СПОСОБ ПОЛУЧЕНИЯ ГИДРОКСИЭТИЛПИПЕРАЗИНОВЫХ СОЕДИНЕНИЙ

ОЧИСТКА ЗАГРЯЗНЕННЫХ ЖИДКОСТЕЙ

... 1. Способ удаления загрязнителей из некоторого количества загрязненной жидкости, содержащий этапы, на которых:подают жидкость в очистной резервуар, содержащий материал адсорбента на основе углерода, обладающий способностью к электрохимической регенерации и расположенный в форме слоя частиц на дне резервуара;перемешивают слой для распределения материала адсорбента в жидкости и адсорбции из жидкости загрязнителей;прекращают перемешивание и дают слою материала осесть;регенерируют адсорбент, пропуская электрический ток через слой для высвобождения из адсорбента газообразных продуктов, полученных из загрязнителя, в форме пузырьков, поднимающихся сквозь жидкость в резервуаре, иудаляют очищенную жидкость из бака.2. Способ по п.1, в котором этапы перемешивания слоя и осаждения слоя и регенерирования адсорбента повторяют для удаления дополнительного количества загрязнителя из жидкости перед ее извлечением.3. Способ по п.1 или 2, в котором слой материала адсорбента перемешивают путем подачи текучей ...

ВОЗДУШНЫЙ ФИЛЬТР ДЛЯ ФИЛЬТРАЦИИ ЖИРОВЫХ ВЕЩЕСТВ

Luftfilter

Aktivkohlefilter

The invention relates to a novel polymer used as a binder for producing activated carbon filters. The inventive polymer is a polyethylene homopolymer and/or polyethylene copolymer having a melt index (MFR 190/15) from 1.2 g/10 min to 10 g/10 min, a molecular weight distribution Mw/Mn ranging from 3 to 30, a bulk density ranging from 0.05 g/cm<3> to 0.5 g/cm<3> and a particle size ranging from 5 mu m to 300 mu m.

Systems and methods for concentrating waste water fluids

The invention relates to a method and apparatus for processing waste water generated during oilfield drilling operations with a mobile processing unit utilizing heat energy sourced from burning hydrocarbon fuel directly and/or capturing and using the exhaust heat energy generated by burning hydrocarbons in engines such as diesel engines in order to vaporize a dominant mass of the aqueous phase of the waste water while clarifying the heat source combustion gasses. The water vapor generated by the vaporization process may be discharged directly to the atmosphere or alternately condensed and captured for use as potable water. The residual waste water is thereby concentrated and the cost to dispose of the waste water is greatly reduced.

METHOD OF CONTROLLING THE SOLVENT VAPOR CONCENTRATION IN A GAS LOCK OF AN APPARATUS

Combustion treatment

A method comprises the use of titanium dioxide nanoparticles, or a precursor thereof, in a fuel or a combustion process in order to treat or modify the fuel of the combustion process. The method includes introducing titanium dioxide nanoparticles, or a precursor thereof, into at least one of the fuel, the fuel and/or air for the combustion process, a combustion apparatus of the combustion process or the combustion emissions of the combustion process. An additive, for use in the above method, includes titanium dioxide nanoparticles. A further method comprises providing a photocatalyst, or a precursor thereof, in a combustion process. The photocatalyst comprises nanoparticles of a semiconductor material having a band gap suitable for absorption of UV and/or visible light, and when the combustion emissions are released into the environment the photocatalyst nanoparticles are carried with the emissions and result in a catalytic reaction that reduces the amount of pollutants in the emissions ...

UNIT FOR FILTRATION AND TREATMENT OF ORGANIC COMPOUNDS, PROCEDURE FOR YOUR PRODUCTION AND AIR CONDITIONING SYSTEM WITH SUCH UNIT

VERFAHREN ZUR REINIGUNG VON ABLUFT UND ABLUFTREINIGUNGSANLAGE

VERFAHREN ZUR REINIGUNG EINES LUFT- ODER GASSTROMES VON VERBRENNBAREN DAMPF- ODER GASFORMIGEN VERUNREINIGUNGEN

PROCEDURE FOR THE REMOVAL OF IN ORGANIC WASTE WATER OR EXHAUST GASES ABSTENTION OXYGEN-CONTAINING ONE ORGANIC MOLECULES USING ALUMINA AGGLOMERATES

PROCEDURE AND DEVICE FOR THE IMPROVEMENT OF THE AIR QUALITY IN A CLOSED AREA

PROCEDURE AND DEVICE FOR REMOVING FROM GASEOUS ORGANIC IMPURITIES FROM EXHAUST GASES

PROCEDURE FOR THE CLEANING OF AN AIR OR A GAS FLOW OF VERBRENNBAREN ONES STEAM OR GASFORMIGEN IMPURITIES

Verfahren und Vorrichtung zur Reinigung eines Abgasstromes

Verfahren und Vorrichtung zur Reinigung eines bei der Verarbeitung von Holzwerkstoffen entstehenden, mit Schadstoffen wie organischen Kohlenstoffverbindungen beladenen Abgasstroms (2), wobei der Abgasstrom (2) in einer Absorptionszone mit einem flüssigen Absorptionsmittel in Kontakt gebracht wird, wobei die Schadstoffe in dem flüssigen Absorptionsmittel absorbiert werden und zumindest ein die Schadstoffe mitführender Teilstrom des flüssigen Absorptionsmittels erhitzt und durch thermische Regeneration von den Schadstoffen befreit wird.

GAS SEPARATION PROCEDURE.

DEVICE AND PROCEDURE FOR THE SINKING OF THE PRESSURE IN THE EMPTY SPACE OF A TANKES FOR THE STORAGE OF LIQUID ONE, ORGANIC, CHEMICAL COMPOUNDS

A graphene aerogel and preparation method and application thereof

The invention relates to the technical field of aerogel materials, in particular to a graphene aerogel and a preparation method and application thereof. The invention provides a preparation method of graphene aerogel, which comprises the following steps: immersing melamine foam into graphene oxide colloid, and drying it to obtain melamine foam material attached with graphene oxide; And carrying out heat treatment on the melamine foam material attached with graphene oxide to obtain graphene aerogel. According to the invention, cheap melamine foam is used as a structural template, and graphene aerogels with excellent performance are prepared by simple heat treatment; and the whole preparation process is short in time consumption, low in energy consumption, non-toxic and harmless, low in cost, suitable for industrial large-scale production, and has good adsorbability for oils.

Biotrickling filter bed for exhaust gas treatment and treatment method using the same

A biotrickling filter bed for exhaust gas treatment comprises an exhaust gas inlet (1), packing layers (2), spray tubes (13), a spray liquid storage tank (3) and an exhaust gas outlet (5). After the exhaust gas passes the exhaust gas inlet (1) and then a first packing layer (2), the flow direction of the exhaust gas is changed at the bottom of the first packing layer (2) such that the exhaust gas passes a second packing layer (2) in a flow direction opposite to that in the first packing layer (2), resulting in a crossflow configuration. Two different flow directions of the exhaust gas compose a crossflow unit. The biotrickling filter bed is composed of two or more crossflow units. An exhaust gas treatment method using the biotrickling filter bed comprises: feeding the exhaust gas into the biotrickling filter bed through the exhaust gas inlet (1); cleaning it by the crossflow packing layers (2); passing the cleaned exhaust gas through a demister (6) and discharging it from the biotrickling ...

METHOD FOR FILTERING PERNICIOUS NON-GASEOUS CONTAMINANTS FROM AIRAND BENIGN GASES

Methanol process

A process is described for the synthesis of methanol comprising the steps of: (i) passing a first synthesis gas mixture comprising a make-up gas through a first synthesis reactor containing a cooled methanol synthesis catalyst to form a first product gas stream, (ii) recovering methanol from the first product gas stream thereby forming a first methanol- depleted gas mixture, (iii) combining the first methanol-depleted gas mixture with a loop recycle gas stream to form a second synthesis gas mixture, (iv) passing the second synthesis gas mixture through a second synthesis reactor containing a cooled methanol synthesis catalyst to form a second product gas stream, (v) recovering methanol from the second product gas stream thereby forming a second methanol-depleted gas mixture, and (vi) using at least part of the second methanol-depleted gas mixture as the loop recycle gas stream, wherein the first synthesis reactor has a higher heat transfer per cubic metre of catalyst than the second synthesis ...

Surgery plume filter device and method of filtering

Porous pellet adsorbents fabricated from nanocrystals

Respirator filter system

CARBON-BASED ADSORPTION POWDER CONTAINING CUPRIC CHLORIDE

A carbon-based, adsorption powder containing an effective amount of cupric chloride suitable for removing mercury from a high temperature, high moisture gas stream, wherein the effective amount of cupric chloride ranges from about 1 to about 45 wt percent. Additional additives, such as potassium permanganate, calcium hydroxide, potassium iodide and sulfur, may be added to the powder to enhance the removal of mercury from the gas stream.

AIR CLEANING DEVICE

... ²²²The present invention provides an apparatus (1) for the treatment of air ²comprising a low power corona discharge ozone generator (5,6) inside a chamber ²(9) having an inlet (2) and an outlet (7), and at least one air flow impeller ²(3) for inducing a flow of air through the chamber (9). The ozone generator ²(5,6) is formed and arranged for generating a restricted concentration of ²ozone, within an inactivating zone (10) contained within the chamber (9), ²through which the air flow is passed. The restricted concentration is ²sufficient to inactivate airborne pollutant material entrained in the air ²flow, yet decays sufficiently outside the inactivating zone so that the ²concentration of ozone in the cleaned air expelled from the apparatus (1) is ²at a physiologically acceptable level without the use of an ozone ²decomposition catalyzer.² ...

METHOD FOR ELIMINATING OXYGENATED ORGANIC MOLECULES THAT ARE PRESENT IN AN ORGANIC EFFLUENT USING ALUMINA AGGLOMERATES

Procédé d'élimination des molécules oxygénées organiques, telles que les alcools et acides organiques, présentes dans un effluent organique liquide ou gazeux, caractérisé en ce qu'on réalise cette élimination par adsorption sur des agglomérés d'alumine tels que : - leur surface spécifique est supérieure ou égale à 10 m /g, préférentiellement à 30 m /g - ils renferment optionnellement un ou des composés dopants de métaux alcalins, de métaux alcalino-terreux et de terres rares avec une teneur massique totale inférieure ou égale à 50%, préférentiellement à 25%, très préférentiellement comprise entre 5000 ppm et 20%, encore plus préférentiellement comprise entre 5000 ppm et 12% ; - si leur teneur en composés dopants est supérieure ou égale à 5000 ppm, leur volume poreux total est supérieur ou égal à 30 ml/100g, très préférentiellement à 35 ml/100g, et leur V70.ANG. est supérieur ou égal à 10ml/100g, préférentiellement supérieur ou égal à 15ml/100g, très préférentiellement supérieur ou égal ...

METHOD AND APPARATUS FOR GAS FILTER TESTING

A method is described to determine the remaining sorption capacity of activated-carbon-sorbent gas filters by measuring the breakthrough time for a test gas challenge to a test filter with known and controlled test conditions that include flow rate and temperature and the use of a calibration curve that has been established by prior testing of the test filter sorbent medium in calibration tests where the filter is exposed to a known quantity of gas surrogate for the challenge gases that the filter may sorb in service and then testing the test filter medium by challenge with a sparged gas that can be selectively detected to determine the breakthrough as a function of test gas. The apparatus using such a method comprises a portable system that includes a sparging test gas generator, a carrier gas system, a test filter canister holder, and a selective detector that can quantitatively monitor the test gas exiting the test filter canister. The method and apparatus can be used to determine the ...

ADSORPTION SEPARATION CYCLE

FISH OIL CHOLESTEROL

Disclosed is a process for producing cholesterol from fish oil, including the following steps: (a) distilling fish oil in a vacuum distillation column to obtain a first residue and a first distillate, (b) distilling the first distillate in a vacuum distillation column to obtain a second distillate and a second residue, (c) contacting the second residue with an alkali to produce a saponified mixture, (d) contacting the saponified mixture with a non-polar organic solvent or a mixture of non-polar organic solvents to produce an organic phase and an aqueous phase, (e) separating the organic phase from the aqueous phase, (0 cooling the organic phase to form a solid phase and a liquid phase, and (g) separating the solid phase from the organic phase, wherein the separated solid phase includes cholesterol.

AIR FILTER FOR GREASE FILTERING

The application relates according to one embodiment to an air filter (104) for grease filtering. The filter comprises a filter mounting element (112) for installing the filter in connection with an intake opening (102) of an air ventilation duct (101), at least one mechanical separation element (120) for separating solid impurities from flowing air (103), and a UV source mounting element (132) capable of being fitted with a UV source (130) for generating UV light. The UV light and a catalyst coating present inside the filter are adapted to transform the physical state of grease flowing into the ventilation duct along with the airflow.

SEPARATION AND STORAGE OF FLUIDS USING ITQ-55

This invention refers to a microporous crystalline material of zeolitic nature that has, in its calcined state and in the absence of defects in its crystalline matrix manifested by the presence of silanois, the empirical formula in which M is selected between H+, at least one inorganic cation of charge +n, and a mixture of both, X is at least one chemical element of oxidation state +3, Y is at least one chemical element with oxidation state +4 different from Si, x takes a value between 0 and 0.2, both included, y takes a value between 0 and 0.1, both included, g takes a value between 0 and 0.5, both included that has been denoted ITQ-55, as well as a method for its preparation. This invention also relates to uses of the crystalline material of zeolitic nature for adsorption of fluid components, membrane separation of fluid components, storage of fluid components, and catalysis of various conversion reactions.

SEPARATION AND STORAGE OF FLUIDS USING ITQ-55

This invention refers to a microporous crystalline material of zeolitic nature that has, in its calcined state and in the absence of defects in its crystalline matrix manifested by the presence of silanols, the empirical formula x (M1/nXO2): y YO2: g GeO2: (1-g) SiO2 in which M is selected between H+, at least one inorganic cation of charge +n, and a mixture of both, X is at least one chemical element of oxidation state +3, Y is at least one chemical element with oxidation state +4 different from Si, x takes a value between 0 and 0.2, both included, y takes a value between 0 and 0.1, both included, g takes a value between 0 and 0.5, both included that has been denoted ITQ-55, as well as a method for its preparation. This invention also relates to uses of the crystalline material of zeolitic nature for adsorption of fluid components, membrane separation of fluid components, storage of fluid components, and catalysis of various conversion reactions.

PROCESS AND SYSTEM FOR THE PURIFICATION OF WASTE GASES CHARGED WITH NITROGEN OXIDES

For purifying waste gas charged with nitrogen oxides in a reactor (1) with heat-accumulator chambers (2, 3) containing heat-accumulator materials (4, 5), the raw gas to be purified alternately enters one of the heat-accumulator chambers (2). Mixed with a reducing agent for the reduction of the nitrogen oxides, it is supplied to a catalyst (6) for the reduction of the nitrogen oxides, and the clean gas heats the heat-accumulator material (5) in the heat-accumulator chamber (3) which the clean gas exits. A partial flow is taken therefrom, heated by means of a heat source (24) and, mixed with a reducing agent, supplied again to the heat-accumulator chamber (2) which the raw gas enters. This heated, recirculated gas forms the only heat source for the overall system.

SYSTEMS AND METHODS FOR CONCENTRATING WASTE WATER FLUIDS

The invention relates to a method and apparatus for processing waste water generated during oilfield drilling operations with a mobile processing unit utilizing heat energy sourced from burning hydrocarbon fuel directly and/or capturing and using the exhaust heat energy generated by burning hydrocarbons in engines such as diesel engines in order to vaporize a dominant mass of the aqueous phase of the waste water while clarifying the heat source combustion gasses. The water vapor generated by the vaporization process may be discharged directly to the atmosphere or alternately condensed and captured for use as potable water. The residual waste water is thereby concentrated and the cost to dispose of the waste water is greatly reduced.

SULFUR-IMPREGNATED ORGANOCLAY MERCURY AND/OR ARSENIC ION REMOVAL MEDIA

The use of a sulfur-impregnated organoclay provides a mercury or arsenic removal media having increased reactivity, stability, and mercury removal ability. The Hg/As removal media described herein is prepared by impregnating an organophilic clay with elemental (free state) sulfur. Alternatively, the clay can be made organophilic by onium ion reaction prior to or simultaneously with impregnating the organoclay with sulfur.

METHODS AND EQUIPMENT FOR TREATMENT OF ODOROUS GAS STREAMS

A method for removing noxious, hazardous, toxic, mutagenic, and/or carcinogenic compounds and/or precursor compounds from a comingled gas, liquid and/or solid stream is described. In one embodiment, the method includes optionally passing the stream through an ambient temperature condenser followed by passing the stream through a spray venturi scrubber, a chilled condenser, a gas/solid separator, and a series of wet scrubbers to remove at least a portion of the compounds.

Verfahren zur Reinigung eines Luft- oder Gasstromes von verbrennbaren dampf- oder gasförmigen Verunreinigungen und Vorrichtung zur Durchführung des Verfahrens

Method for removing gaseous organic impurities from waste gases, and appliance to implement the same

METHOD AND DEVICE FOR REMOVING OIL FROM FLOW OF MUNICIPAL GAS

METHOD OF

METHOD OF SEPARATING METHANOL FROM MIXTURES OF GASES

СПОСОБ ПРОИЗВОДСТВА ПОЛИЭФИРА ТВЕРДОФАЗНОЙ ПОЛИКОНДЕНСАЦИЕЙ ПОЛИЭФИРА С ОЧИСТКОЙ ТЕХНОЛОГИЧЕСКИМ ГАЗОМ И УСТАНОВКА

Изобретение основано на способе производства высокомолекулярного полиэфира из затвердевшего полиэфирфорполимера путем твердофазной поликонденсации. При этом поликонденсационные продукты расщепления, образующиеся при реакции твердофазной поликонденсации, удаляются из продукта технологическим газом, а технологический газ в последующем очищается от поликонденсационных продуктов расщепления и в основном вовлекается в рециркуляцию. Соответственно изобретению очистка технологического газа производится водной промывочной жидкостью. В установку для осуществления способа входят кристаллизационный аппарат (1) и реакционный аппарат (2). Соответственно изобретению выходное отверстие для газа (2d) в реакционном аппарате (2) прямо или косвенно соединено с входным отверстием для газа (3с) в системе очистки газа, а выходное отверстие для газа (3d) в системе очистки газа (3) - с входным отверстием для газа (2с) в реакционном аппарате (2). Кроме того, в систему очистки газа (3) входят аппаратура для промывки ...

METHOD OF EXTRACTING AMMONIA FROM GASEOUS FLOW

METHOD OF PRODUCING HAVING LOW MOLECULAR WEIGHT AROMATIC FORMED FROM LIGNIN COMPOUNDS

REMOVAL OF UREA AND AMMONIA FROM EXHAUST GASES

СПОСОБ ПРОИЗВОДСТВА ПОЛИЭФИРА ТВЕРДОФАЗНОЙ ПОЛИКОНДЕНСАЦЕЙ ПОЛИЭФИРА С ОЧИСТКОЙ ТЕХНОЛОГИЧЕСКИМ ГАЗОМ И УСТАНОВКА

Изобретение основывается на способе производства высокомолекулярного полиэфира из затвердевшего полиэфирфорполимера путем твердофазной поликонденсации. При этом поликонденсационные продукты расщепления, образующиеся при реакции твердофазной поликонденсации, удаляются из продукта технологическим газом, а технологический газ в последующем очищается от поликонденсационных продуктов расщепления и в основном вовлекается в рециркуляцию. Соответственно изобретению очистка технологического газа производится водной промывочной жидкостью. В установку для осуществления способа входят кристаллизационный аппарат (1) и реакционный аппарат (2). Соответственно изобретению выходное отверстие для газа (2d) в реакционном аппарате (2) прямо или косвенно соединено с входным отверстием для газа (3с) в системе очистки газа, а выходное отверстие для газа (3d) в системе очистки газа (3) - с входным отверстием для газа (2с) в реакционном аппарате (2). Кроме того, в систему очистки газа (3) входят аппаратура для ...

METHOD AND DEVICE FOR REMOVING SOLID PARTICLES AND RESIN COMPONENT FROM GASEOUS CARBON MONOXIDE

СПОСОБ И УСТРОЙСТВО ДЛЯ УМЕНЬШЕНИЯ СОДЕРЖАНИЯ ДОБАВОК В УГЛЕВОДОРОДНОМ ПОТОКЕ

Способ уменьшения содержания одной или более добавок в газообразном углеводородном потоке (40), включающий стадии: (a) смешение потока (10) исходного углеводородного сырья с одной или более добавками (20), в результате чего образуется многофазный углеводородный поток (30); (b) транспортирование многофазного углеводородного потока (30) от первого участка (А) ко второму участку (В2); (c) на втором участке (В2), пропускание многофазного углеводородного потока (30) через сепаратор (22), в результате чего образуется один или более жидких потоков (50), содержащих большую часть одной или более добавок, и газообразный углеводородный поток (40), содержащий остаток одной или более добавок; и (d) промывание потока газообразного углеводородного потока (40) в очистном блоке (24) промывочным потоком (60), который (промывочный поток (60)) содержит дистиллированную воду, в результате чего образуется обогащенный добавкой(ами) поток (70) и углеводородный поток (80) с пониженным содержанием добавок.

Method for preparing air purification material carrier by utilizing waste glass

Multipurpose poisonous and harmful gas filter device and gas filter method

Method and system for treating waste gas by combining dual-effect reactor and cement production

From carbon monoxide in the gas used for removing solid particles and tar component of the method and apparatus of the

PROCESS AND DEVICE TO PURIFY VEINS Of GAS EFFLUENTS IN CHARGE OF POLLUTING SUBSTANCES

SET OF COATING, ITS MANUFACTURING METHOD, AND AN AIR CONDITIONER EQUIPPED THEREWITH

PROCESS AND DEVICE TO PURIFY VEINS Of GAS EFFLUENTS IN CHARGE OF POLLUTING SUBSTANCES

... - La présente invention concerne un procédé et un dispositif pour filtrer des substances mêlées à des effluents gazeux. - Selon le procédé on établit une circulation des effluents au travers d'un dispositif comportant une batterie d'unités d'épuration (4a à 4n) juxtaposées dans une enceinte (3), contenant chacune des matériaux adsorbant lesdites substances. Quand leur charge adsorbante est saturée et pour restituer leur capacité d'épuration aux unités d'épuration (4), on les isole sélectivement et successivement au moyen d'un collecteur mobile (8) le temps nécessaire à leur désorption par chauffage et au transfert des substances par un fluide auxiliaire (une fraction des effluents en circulation par exemple ou un gaz amené sélectivement à l'entrée de l'unité d'épuration à désorber par un circuit auxiliaire), et éventuellement on transfère les substances mêlées au fluide auxiliaire vers un réacteur (10) adapté à les éliminer. - Application à la concentration et l'épuration de substances ...

PROCEEDED Of OPTIMIZATION OF the ORDERING Of a PROCESSING CENTER OF SMOKE Of a FURNACE REVOLVING FIRE OF COOKING OF BLOCKS CARBONS HAS

Le procédé commande le centre (23) de traitement des fumées (CTF) épurant les fumées de cuisson d'un four (1) à cuire (FAC) à feu tournant dont les fumées sont aspirées par au moins une rampe (11 ) d'aspiration du FAC (1) et collectées dans un conduit (20, 20') les dirigeant au CTF (23) comportant une tour (24) de refroidissement des fumées par pulvérisation d'eau dans les fumées, et au moins un réacteur (25) de neutralisation physico-chimique des fumées par mise en contact avec un réactif pulvérulent, tel l'alumine, puis filtrage (36) du réactif chargé et des poussières des fumées, et recyclage dans le réacteur (25) d'au moins une fraction du réactif filtré et son mélange à du réactif frais, le procédé comprenant au moins les étapes consistant à réguler le débit d'eau dans la tour (24) de refroidissement, et/ou réguler le débit et/ou le taux de recyclage du réactif dans le réacteur (25), en fonction d'au moins un paramètre indicateur d'un niveau de pollution des fumées à l'entrée du CTF ...

METHOD OF TREATING VENTS GAS EMANATING FROM SUCH STORAGE BINS AND A DEVICE FOR CARRYING OUT

L'objet de l'invention est un procédé de traitement d'évents gazeux émanant d'un bac de liquide, comportant une étape de collecte des évents, au moins une étape de traitement des évents collectés, par lavage dans un contenant accueillant une solution de lavage, et une étape d'évacuation des évents une fois traités par le lavage, caractérisé en ce que l'étape de lavage consiste en ce que les évents collectés se mélangent par barbotage dans la solution de lavage. L'invention vise également un dispositif pour la mise en œuvre du procédé et une utilisation du procédé et du dispositif pour des évents émanant notamment d'acides, de bases, de liquides oxydants, de produits odorants ou de solvants organiques.

AIR DECONTAMINATION DEVICE

Dispositif de décontamination d'air par photocatalyse comportant : - une enceinte de photocatalyse (1) pourvue d'au moins un orifice d'entrée (3) et un orifice de sortie (4), - au moins une source lumineuse (6) pour activer la photocatalyse, - au moins un support (5) comportant un photocatalyseur, ladite source lumineuse (6) illuminant au moins une surface du support (5), - des moyens de circulation de l'air à décontaminer en provenance de l'orifice d'entrée (3) vers l'orifice de sortie (4) de ladite enceinte (1)qui créent un mouvement d'air le long du support (5), pour la mise en contact de l'air avec un composé métallique solide choisi parmi un métal germicide, bactériostatique et/ou antifongique.

Filtering and processing assembly for air conditioning system has two modules with adsorption and photocatalytic agents separated by a photocatalytic lighting module

Cet ensemble (20) de filtration et de traitement de composés organiques pour appareil de conditionnement d'air comprend au moins un média filtrant (203, 204) comprenant un agent d'adsorption (242), tel que du charbon actif, et un agent photocatalyseur (243), tel que du TiO2. Ce média filtrant (203, 204) est réparti dans deux modules filtrants (201, 202) destinés à être successivement traversés par le flux d'air (F3) à filtrer et traiter, alors qu'un module (205) d'éclairement de l'agent photocatalyseur (243) est intercalé entre les modules filtrants (201, 202) et destiné à être également traversé par le flux d'air.

PROCESS FOR PRODUCING ACTIVATED CARBON HAVING A HIGH CATALYTIC ACTIVITY

Process for producing activated carbon having a high catalytic activity, in which a carbonaceous material is brought into contact with nitrogen compounds, wherein the carbonaceous material is partially gasified with a mixture of steam, nitrogen and CO2 at temperatures above 800°C in a manner known per se in a multistage fluidized bed and wherein a nitrogen compound is added into the furnace and/or at least one stage of the multistage fluidized bed. © KIPO & WIPO 2009 ...

METHOD FOR TREATING A HYDROCARBON-RICH GAS MIXTURE CONTAINING MERCURY AND ACID GASES

METHOD AND APPARATUS FOR TAIL GAS IMPURITY

SEPARATION AND STORAGE OF FLUIDS USING ITQ-55

METHOD FOR OBTAINING A TITANIUM-DIOXIDE PHOTOCATALYST, PHOTOCATALYST OBTAINED BY MEANS OF SAID METHOD, AND USE GIVEN THERETO

A description is given of titanium-dioxide photocatalysts activated with visible light, the method for obtaining a photocatalyst of this type, the photocatalyst obtained in said method, and also the use given thereto, the main area of application for said materials being contaminant degradation.

REDUCING METHOD OF WATER FROM REACTOR OUTLET GAS IN THE OXIDATION PROCESS OF AROMATIC COMPOUND

The present invention relates to a method of reducing water from the reactor outlet gas in the oxidation process of an aromatic compound, for example, in the preparation of terephthalic acid by oxidation of xylene in an acetic acid solvent. As water is removed from the reactor outlet gas at the first absorption tower, the amount of water inflow to the dehydration tower is reduced and, thus, the amount of steam required to separate water and acetic acid at the dehydration tower is reduced and the load of the dehydration tower can be decreased. Further, by carefully controlling the flow amount of the reactor outlet gas to the first absorption tower, the operation of the dehydration tower may be made unnecessary.

PROCESS TO REMOVE PRODUCT ALCOHOL FROM A FERMENTATION BY VAPORIZATION UNDER VACUUM

A fermentation liquid feed including water and a product alcohol and optionally CO2 is at least partially vaporized such that a vapor stream is produced. The vapor stream is contacted with an absorption liquid under suitable conditions wherein an amount of the product alcohol is absorbed. The portion of the vapor stream that is absorbed can include an amount of each of the water, the product alcohol and optionally the C02. The temperature at the onset of the absorption of the vapor stream into the absorption liquid can be greater than the temperature at the onset of condensation of the vapor stream in the absence of the absorption liquid. The product alcohol can be separated from the absorption liquid whereby the absorption liquid is regenerated. The absorption liquid can include a water soluble organic molecule such as an amine.

HYDROGEN RECYCLE FOR HIGH TEMPERATURE FUEL CELLS

High temperature fuel cell electrical generation systems are provided that are adapted to enable selective generation of electrical power, and/or hydrogen fuel, and/or useable heat, allowing flexible operation of the generation system. In such embodiments, the high temperature fuel cell may be either a MCFC or a SOFC. The disclosed systems relate to high temperature fuel cells exploiting gas separation devices in which a first gas mixture is to be separated so that a first product of the separation is enriched in a first component, while a second component is mixed with a displacement purge stream to form a second gas mixture, with provision to prevent cross contamination of purge gas components into the first product stream. The invention may be applied to hydrogen (component A) enrichment from syngas mixtures such as fuel cell anode exhaust, where dilute carbon dioxide (component B) is to be rejected such as to the atmosphere or for recycle to the fuel cell cathode in the case of molten ...

ADSORBENTS AND USES THEREOF

Use of an adsorbent in preventing the formation of an adduct in a pharmaceutical product due to a chemical reaction between a medicament and a gaseous substances in the product.

EXPANDED POLYTETRAFLUOROETHYLENE TUBULAR CONTAINER

A container for adsorbing components present in an environment, which comprises a tubular structure of expanded, porous polytetrafluoroethylene sealed at both ends, so as to encapsulate an adsorbent present with the tubular structure.

Gas cabinet assembly comprising sorbent-based gas storage and delivery system

A gas supply system including a gas cabinet defining an enclosure including therein a gas dispensing manifold and one or more adsorbent-based gas storage and dispensing vessels mounted in the enclosure and joined in gas flow communication with the gas dispensing manifold. The enclosure may be maintained under low or negative pressure conditions for enhanced safety in the event of leakage of gas from the gas storage and dispensing vessel(s) in the enclosure. The gas supply system may be coupled to a gas-consuming unit in a semiconductor manufacturing facility, e.g., an ion implanter, an etch chamber, or a chemical vapor deposition reactor.

Heating element using charcoal

Disclosed is a heating element which can also absorb gas, especially a heating element usable as an interior material for buildings which serves both as a heater and an absorber capable of absorbing harmful gas present in the room. This heating element comprises: a molded product comprising a high-temperature carbonized charcoal which has been carbonized at a temperature of about 800° C. or above; and at least two electrodes which can energize the molded product, wherein current is applied to the electrodes to generate heat. The molded product comprising a high-temperature carbonized charcoal, which has been carbonized at a temperature of about 800° C. or above is excellent as a heating element and, at the same time, has an excellent capacity capable of adsorbing various gases. Mixing a low-temperature carbonized charcoal, which has been carbonized at a temperature of about 500° C. or below into the molded product and, further, a combination of the molded product with alginic acid or calcium ...

FORMIC ACID DECOMPOSITION APPARATUS AND FORMIC ACID DECOMPOSITION METHOD

To provide a formic acid decomposition apparatus and method, which can dispose of formic acid safely and quickly and determine the activity of a filled catalyst. The apparatus is for decomposing formic acid contained in exhaust gas exhausted from a soldering apparatus in which a surface oxide film is reduced with formic acid, into water and carbon dioxide. The apparatus has a formic acid decomposition part in which a formic acid decomposition catalyst is filled; a gas introduction pipe for introducing gas containing formic acid into the decomposition part; and a gas introduction unit for introducing oxygen or gas containing oxygen into the decomposition part. In the apparatus, the activity of the catalyst is determined on the basis of an amount of change of a catalyst temperature by heat generation during a decomposition reaction of formic acid. The method includes mixing exhaust gas containing formic acid exhausted from the soldering apparatus, and oxygen or gas containing oxygen such ...

Membrane-based process for butanols production from mixed butenes

A method of separately producing tert-butanol and sec-butanol, comprising the steps of introducing a mixed butenes stream to a tube side of a reaction membrane unit, introducing a TBA reactor water feed to the tube side of the reaction membrane unit, introducing a sweep gas to a shell side of the reaction membrane unit, introducing an SBA reactor water feed to the shell side, allowing the mixed butenes stream to contact the tube side of a such that selective gases in the mixed butenes stream permeate through the membrane to the shell side, allowing the selective gases that permeate through the membrane to react with water to produce sec-butanol, allowing retentate gases that fail to permeate through the membrane to react with water to produce tert-butanol, collecting the tert-butanol in a TBA reactor effluent, and collecting the sec-butanol in a SBA reactor effluent.

EVAPORATIVE FUEL VAPOR EMISSION CONTROL SYSTEMS

An evaporative emission control canister system comprises an initial adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, and at least one subsequent adsorbent volume having an effective incremental adsorption capacity at 25° C. of less than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, an effective butane working capacity (BWC) of less than 3 g/dL, and a g-total BWC of between 2 grams and 6 grams. The evaporative emission control canister system has a two-day diurnal breathing loss (DBL) emissions of no more than 20 mg at no more than 210 liters of purge applied after the 40 g/hr butane loading step.

Method And Apparatus For Removal of Oil From Utility Gas Stream

The present application is directed to a method and system for preparing gaseous utility streams from gaseous process streams, particularly, removing oil contamination from such streams prior to use in a dry gas seal. The methods and systems may include at least one kinetic swing adsorption process including pressure swing adsorption, temperature swing adsorption, calcination, and inert purge processes to treat gaseous streams for use in dry gas seals of rotating equipment such as compressors, turbines and pumps and other utilities. The adsorbent materials used include a high surface area solid structured microporous and mesoporous materials.

METHOD AND SYSTEM TO CONTROL AND MAINTAIN PRODUCT QUALITY FOR AN OLEFIN MEMBRANE SEPARATION

A process and system to control the final product quality in a system for separating olefins and paraffins in a membrane system. A small finishing membrane stage is added to an existing membrane system that takes a slip stream from the product, purifies it to a very high concentration of propylene and blends it back into the product stream.

Air filter

The air filter comprises a honeycomb rotor which carries a porous adsorbent and can be rotated in a circumferential direction, a drive means for rotating the honeycomb rotor, a first partition member provided with a first gas introduction section and a second gas exhaust section and a second partition member provided with a first gas exhaust section and a second gas introduction section, the first and second partition members being disposed on both sides of the honeycomb rotor respectively so as to allow two gases to flow in counter current to each other and to pass through different conduits respectively, a heater disposed at the inlet port of the first gas introduction section, a drive controller for controlling the drive means such that the honeycomb rotor can rotate intermittently by every part of a regenerative/purge zone facing said first gas introduction section among the surface of the filter of the honeycomb rotor.

Renewable transportation fuel process with thermal oxidation system

A process for treating effluent streams in a renewable transportation fuel production process is described. One or more of the sour water stream and an acid gas stream are treated directly in thermal oxidation section. The process allows the elimination or size reduction of a sour water stripper unit, waste water treatment plant, and sulfur recovery unit.

OIL SUPPRESSING STRUCTURE IN AIR DRYING DEVICE

There is provided an oil suppressing structure in air drying device for removing oil contents or oil mist contained in compressed air which rises in an interior of the air drying device used in a vehicle compressed air brake system. An air drying device includes an outer case 21, a drying case 22 which is accommodated in an interior of the outer case 21, a base plate 23 which is fixed to a lower end portion 21a of the outer case 21, and an outer cover 24 which is fixed to a lower end portion 21a of the base plate 23. The drying case 22 has a large-diameter long cylindrical body portion 22A and a small-diameter long cylindrical body portion 22B, and a particulate desiccating agent 25 is filled in an interior of the large-diameter cylindrical body portion 22A. An oil adsorbing material 27 is a high-performance oil adsorbing member and is inserted to be placed in a space S3 defined between an inner wall surface of the outer case 21 and the small-diameter long cylindrical body portion 22B of ...

MONOTERPENE COMPONENT-RICH ESSENTIAL OIL, METHOD FOR PRODUCING SAME AND METHOD FOR REMEDIATING ENVIRONMENTAL POLLUTANTS USING THE ESSENTIAL OIL

To develop a means for effectively utilize terpene compounds contained in tree leaves, whereby branches and leaves cut in tree thinning and pruning can be effectively utilized as a resource. For this purpose, provided are a monoterpene component-rich essential oil containing 90% or more of monoterpene components; a method for producing the monoterpene component-rich essential oil which includes subjecting coniferous leaves to microwave steam distillation and collecting a distillate thus obtained; and a method for removing environmental pollutants which includes bringing the monoterpene component-rich essential oil into contact with atmosphere containing the environmental pollutants.

USE OF A TRANSITION METAL OXIDE AS A CATALYST FOR THE ELIMINATION OF TAR SUBSTANCES FROM SYNGAS

PLANT AND PROCESS FOR THE TREATMENT OF GAS STREAMS

Methods and apparatus for simultaneously cooling and separating a mixture of hot gas and liquid

Apparatus and methods for cooling a mixture of hot gas and liquid received from a compressor and simultaneously separating the gas from the liquid, the apparatus comprising a receiving inlet, a header unit, a collector, and a plurality of conduits comprising turbulators which creates turbulence and heat-exchange surfaces to simultaneously separate the liquid from the gas and cooling both the liquid and the gas, and the method comprising receiving the mixture from the compressor through a receiving inlet; directing the mixture into a plurality of conduits; and in each of the plurality of conduits, simultaneously separating the liquid from the gas and cooling both the gas and the liquid.

Process for the removal of contaminants

A process is described for the removal of a contaminantselected from a drying agent and a corrosion inhibitorfrom a sorbent selected from afiltration medium, a molecular sieve material, a porous oxide or a chemical sorbent,comprising the step of applying a carbon dioxide stream in which the carbon dioxide is present in the liquid phase orsupercriticalphase, to the contaminated sorbent in a sorbent vessel to remove the contaminant from the sorbent and form a contaminant-laden carbon dioxide stream and a decontaminated sorbent. Preferably the contaminant-laden carbon dioxide stream is recovered from the sorbent vessel and fedto a separation vessel in which the pressure is reduced to cause separation of the contaminant from a depressurised gaseous carbon dioxide. Adepressurised gaseous carbon dioxidestream and a separate contaminant streammay then be recovered from the separation vessel. The recovered depressurised carbon dioxide may be re-pressurised and fed back to the sorbent vessel. The ...

Methods and apparatus for simultaneously cooling and separating a mixture of hot gas and liquid

PROCEDURE AND DEVICE FOR REMOVING FROM GASEOUS ORGANIC IMPURITIES FROM EXHAUST GASES

PROCEDURE FOR FILTERING HARMFUL OF NICHTGASFÖRMIGER IMPURITIES FROM AIR AND HARMLESS ONE GASES

Nanoparticular metal oxide/anatase catalysts

The present invention concerns a method of preparation of nanoparticular metal oxide catalysts having a narrow particle size distribution. In particular, the invention concerns preparation of nanoparticular metal oxide catalyst precursors comprising combustible crystallization seeds upon which the catalyst metai oxide is co-precipitated with the carrier metal oxide, which crystallization seeds are removed by combustion in a final calcining step. The present invention also concerns processes wherein the nanoparticular metal oxide catalysts of the invention are used, such as SCR (deNOx) reactions of nitrogen oxides with ammonia or urea as reductant, oxidations of alcohols or aldehydes with dioxygen or air to provide aldehydes, ketones or carboxylic acids, and photocatalytic oxidation of volatile organic compounds (VOCs).

Room Temperature Chemical Trap for the Purification of Gaseous Methane

A room temperature trap for the purification and concentration of gaseous methane. The trap utilizes the adsorption and desorption properties of microporous spherical carbon molecular sieves to purify and concentrate radiolabelled methane for application in an automated synthesis module without the need for cryogenic cooling.

Method for removing vinyl monomers from a gas stream

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

Process to remove product alcohol from a fermentation by vaporization under vacuum

A fermentation liquid feed including water and a product alcohol and optionally CO 2 is at least partially vaporized such that a vapor stream is produced. The vapor stream is contacted with an absorption liquid under suitable conditions wherein an amount of the product alcohol is absorbed. The portion of the vapor stream that is absorbed can include an amount of each of the water, the product alcohol and optionally the CO 2 . The temperature at the onset of the absorption of the vapor stream into the absorption liquid can be greater than the temperature at the onset of condensation of the vapor stream in the absence of the absorption liquid. The product alcohol can be separated from the absorption liquid whereby the absorption liquid is regenerated. The absorption liquid can include a water soluble organic molecule such as an amine.

Process for the recovery of ammonia from a gaseous stream

A process for the recovery of ammonia contained in a gaseous stream is described, said process comprising the following phases: (a) subjecting the gaseous stream containing ammonia to a washing (S) with an aqueous washing solution ( 5 a ) having a pH lower than 7.0, with the formation of a purified gaseous stream ( 6 ) and an aqueous solution ( 7 ) containing an ammonium salt; (b) subjecting the aqueous solution containing the ammonium salt coming from phase (a) to a distillation process (MD) with a hydrophobic microporous membrane at a temperature ranging from 50 to 250° C. and a pressure ranging from 50 KPa to 4 MPa absolute with the formation of a regenerated washing solution ( 16 ) and a gaseous stream ( 18 ) comprising NH 3 and H 2 O; (c) recycling said generated washing solution to phase (a). The equipment for carrying out the above process is also described.

Vapor recovery system utilizing compression-condensation processes and related methods

An off gas extraction system cleans common sources of off gas, such as storage tanks and polluted soils. Off gas is extracted, followed by compression and condensation. Compression and condensation produce an off gas that can be reintroduced as a treated gas into the off gas source. Alternatively, a regenerative absorber cleans the treated gas by adsorbing residual chemical vapor and concentrates the removed chemical vapors and reprocesses them. If the treated gas is not reintroduced into the off gas source, conventional scrubbers may used on the back end of the system to produce a final exhaust as prescribed by environmental regulation. Methods of accomplishing the same are similarly provided, including novel methods for degassing storage tanks and treating polluted soils to meet current environmental regulations, as well as green technology and sustainability initiatives.

Method and system for surface modification of superadsorbent material for improved environmental and urban air sampling applications

A method for providing superadsorption of polar organic compounds using a material system comprising the steps of enhancing adsorption by means of using high surface area and mass transfer rates and decreased reactivity at surface sites attractive to the polar compounds and employing consequence management by maintaining a high rate of adsorptivity combined with high fidelity and accuracy of the material system.

Gas treatment by catalytic ozone oxidation

In one embodiment, a catalyst for ozone oxidation of pollutant components dispersed in a gas is provided. The ozone oxidation catalyst has a porous body formed from a metal body, a ceramic, or polymeric fibers coated with metal. A catalytic noble metal composition is deposited on the surface of the porous body. The catalytic noble metal composition is formed from particles of a noble metal supported by a mesoporous molecular sieve.

PHOTOCATALYST COMPRISING TiO2 AND ACTIVATED CARBON MADE FROM DATE PITS

A photocatalyst is provided that comprises activated carbon produced from date pits, impregnated with TiO 2 . The activated carbon can have a porous surface that can attract and trap pollutants flowing in air or water. The photocatalyst can be made by a method that includes preparing activated carbon by calcining date pits to form a precursor material, and then impregnating the precursor material with titanium dioxide.

Attrition resistant hardened zeolite materials for air filtration media

Environmental control in air handling systems that are required to provide highly effective filtration of noxious gases particularly within filter canisters that are ultrasonically welded enclosures is provided. In one embodiment, a filtration system utilizes a novel zeolite material that has been hardened to withstand ultrasonic welding conditions in order to reduce the propensity of such a material to destabilize and/or dust. Such a hardened zeolite thus enables for trapping and removal of certain undesirable gases (such as ammonia, ethylene oxide, formaldehyde, and nitrous oxide, as examples) from an enclosed environment, particularly in combination with metal-doped silica gel materials. Such a hardened zeolite is acidic in nature and not reacted with any salts or like substances and, as it remains in a hardened state upon inclusion within a welded filter device, the filter medium itself permits proper throughput with little to no dusting, thereby providing proper utilization and reliability for such a gas removal purpose. Methods of using and the application within specific filter apparatuses are also encompassed within this invention.

Mat of mineral fibers including an agent capable of trapping formaldehyde and manufacturing processes

The present invention relates to a mat of mineral fibers which comprises an agent capable of trapping formaldehyde present in particular in dwellings or offices and transportation vehicles. The agent capable of trapping formaldehyde is chosen from compounds comprising active methylene(s), hydrazides, tannins, amides, amino acids and sulfites. Another subject matter of the present invention is the processes for the manufacture of said mat of mineral fibers.

Biotrickling filter for treating waste gas and treating method using the same

A biotrickling filter for treating waste gas including a waste gas inlet, packing layers, a spray pipe, a spray liquid storage tank, and a waste gas outlet. The waste gas passes through a first packing layer after passing through the waste gas inlet and then passes through a second packing layer after changing the flow direction at the bottom of the first packing layer; the flow directions of the waste gas in the first packing layer and the second packing layer are opposite to form a cross-flow structure; the two different flow directions of the waste gas form a cross-flow unit, and two or more cross-flow units form the biotrickling filter.

Process to Remove Product Alcohol from a Fermentation by Vaporization Under Vacuum

A fermentation liquid feed including water and a product alcohol and optionally CO 2 is at least partially vaporized such that a vapor stream is produced. The vapor stream is contacted with an absorption liquid under suitable conditions wherein an amount of the product alcohol is absorbed. The portion of the vapor stream that is absorbed can include an amount of each of the water, the product alcohol and optionally the CO 2 . The temperature at the onset of the absorption of the vapor stream into the absorption liquid can be greater than the temperature at the onset of condensation of the vapor stream in the absence of the absorption liquid. The product alcohol can be separated from the absorption liquid whereby the absorption liquid is regenerated. The absorption liquid can include a water soluble organic molecule such as an amine.

Swing Adsorption Processes Utilizing Controlled Adsorption Fronts

A process for reducing the loss of valuable products by improving the overall recovery of a contaminant gas component in swing adsorption processes. The present invention utilizes at least two adsorption beds, in series, with separately controlled cycles to control the adsorption front and optionally to maximize the overall capacity of a swing adsorption process and to improve overall recovery a contaminant gas component from a feed gas mixture.

Pressure-Temperature Swing Adsorption Process for the Separation of Heavy Hydrocarbons from Natural Gas Streams

The present invention relates to a pressure-temperature swing adsorption process wherein gaseous components that have been adsorbed can be recovered from the adsorbent bed at elevated pressures. In particular, the present invention relates to a pressure-temperature swing adsorption process for the separation of C 2+ hydrocarbons (hydrocarbons with at least 2 carbon atoms) from natural gas streams to obtain a high purity methane product stream. In more preferred embodiments of the present processes, the processes may be used to obtain multiple, high purity hydrocarbon product streams from natural gas stream feeds resulting in a chromatographic-like fractionation with recovery of high purity individual gaseous component streams.

Gas Purification Process Utilizing Engineered Small Particle Adsorbents

A gas separation process uses a structured particulate bed of adsorbent coated shapes/particles laid down in the bed in an ordered manner to simulate a monolith by providing longitudinally extensive gas passages by which the gas mixture to be separated can access the adsorbent material along the length of the particles. The particles can be laid down either directly in the bed or in locally structured packages/bundles which themselves are similarly oriented such that the bed particles behave similarly to a monolith but without at least some disadvantages. The adsorbent particles can be formed with a solid, non-porous core with the adsorbent formed as a thin, adherent coating on the exposed exterior surface. Particles may be formed as cylinders/hollow shapes to provide ready access to the adsorbent. The separation may be operated as a kinetic or equilibrium controlled process.

Component Separations in Polymerization

A process for component separation in a polymer production system, comprising separating a polymerization product stream into a gas stream and a polymer stream, wherein the gas stream comprises ethane and unreacted ethylene, distilling the gas stream into a light hydrocarbon stream, wherein the light hydrocarbon stream comprises ethane and unreacted ethylene, contacting the light hydrocarbon stream with an absorption solvent system, wherein at least a portion of the unreacted ethylene from the light hydrocarbon stream is absorbed by the absorption solvent system, and recovering a waste gas stream from the absorption solvent system, wherein the waste gas stream comprises ethane, hydrogen, or combinations thereof.

Methods for controlling impurity buildup on adsorbent for pressure swing adsorption processes

Embodiments of methods for controlling impurity buildup on adsorbent for a pressure swing adsorption (PSA) process are provided. The method comprises the steps of operating the PSA process including performing (a) a first depressurizing equalization step, and (b) a providing purge step. Impurities are sensed in an effluent from the PSA process. If the impurities sensed in the effluent have reached a predetermined upper impurity level, then the PSA process is operated including performing (b) and not (a).

Gas Scrubber Having an Integrated Heat Exchanger

A gas scrubber, equipped with heat exchanger surfaces constructed of thermoplates, suitable for cooling and cleaning a hot gas by avoiding an excessive thermal load of the washing liquid.

Method and apparatus for catalytic and thermochemical reactions

The invention relates to a hybrid reverse flow catalytic apparatus having two reaction zones: a homogeneous reaction zone in porous ceramic and a heterogeneous reaction zone with catalyst, arranged in two different catalyst beds. A first catalytic bed located in a central region of the reactor is provided with a low activity catalyst and a second catalyst bed located in a peripheral region of the reactor is provided with a high activity catalyst. The provision of two catalyst beds containing different catalysts reduces the effect of radial temperature gradients in the reactor and improves the overall efficiency of the reactor. The invention also relates to method of performing catalytic and thermochemical reactions in said apparatus.

Engine exhaust catalysts doped with bismuth or manganese

An emission control catalyst is doped with bismuth, manganese, or bismuth and manganese. The doped catalyst may be a palladium-gold catalyst or a platinum-based catalyst, or both. The doped palladium-gold catalyst and the doped platinum-based catalyst may be contained in a single washcoat layer or in different washcoat layers of a multi-brick, multi-zoned, or multi-layered emission control system. In all embodiments, zeolite may be added as a hydrocarbon absorbing component.

Method for removing contaminants from a fluid stream

A method for removing at least one contaminant from a fluid stream includes filtering the fluid stream with a filtration medium. The filtration medium includes an impregnate. The impregnate includes an organic amine and an inorganic metal salt. The inorganic metal salt includes magnesium oxide, calcium oxide or combinations thereof. The medium has from about 0.1 to about 25% by weight of impregnate. The impregnate contains from about 0.1 to about 5% by weight organic amine, and the organic amine includes aqueous urea, solid urea, melamine or mixtures thereof. The impregnate contains from about 0.1 to about 5% by weight metal salt. The impregnate optionally further includes a surfactant such as polyacrylic acid. In some embodiments, the method includes removing at least two contaminants from the fluid stream.

Complex oxide, method for producing same, and exhaust gas purifying catalyst

Disclosed are a composite oxide which is capable of maintaining a large volume of pores even used in a high temperature environment, and which has excellent heat resistance and catalytic activity, as well as a method for producing the composite oxide and a catalyst for exhaust gas purification employing the composite oxide. The composite oxide contains cerium and at least one element selected from aluminum, silicon, or rare earth metals other than cerium and including yttrium, at a mass ratio of 85:15 to 99:1 in terms oxides, and has a property of exhibiting a not less than 0.30 cm 3 /g, preferably not less than 0.40 cm 3 /g volume of pores with a diameter of not larger than 200 nm, after calcination at 900° C. for 5 hours, and is suitable for a co-catalyst in a catalyst for vehicle exhaust gas purification.

Metal complex, and adsorbent, occlusion material and separator material made from same

This invention provides a metal complex having a gas adsorption capability, a gas storing capability, and a gas separation capability. The present invention attained the above object by a metal complex comprising: a dicarboxylic acid compound (I) represented by the following General Formula (I), wherein R 1 , R 2 , R 3 , and R 4 are as defined in the specification; at least one metal ion selected from ions of a metal belonging to Group 2 and Groups 7 to 12 of the periodic table; and an organic ligand capable of bidentate binding to the metal ion, the organic ligand belonging to the D ∞h point group, having a longitudinal length of not less than 8.0 Å and less than 16.0 Å, and having 2 to 7 heteroatoms.

Antimicrobial and carbon treated indoor air filter

An indoor air filter is disclosed. The filter includes non-woven fibers, carbon, and an antimicrobial. The carbon and the antimicrobial are bonded to the fibers to form a filter media. The filter media is pleated. The carbon is activated. The antimicrobial can be silver. The non-woven fibers can be synthetic, and the filter media can be a mechanical filter media.

Purification unit and deodoriding device

A purification unit for purifying air by a photocatalytic reaction includes a first light source which emits light; a first reflection plate which reflects the light emitted from the first light source; and a plurality of purification plates which cause the photocatalytic reaction by irradiation of the light emitted from the first light source. In this arrangement, at least one of the purification plates is disposed between the first reflection plate and the first light source, and the light emitted from the first light source is transmitted through the purification plate disposed between the first reflection plate and the first light source, and then is reflected on the first reflection plate for irradiation onto the purification plates.

Zn5(BTA)6(TDA)2 - A ROBUST HIGHLY INTERPENETRATED METAL-ORGANIC FRAMEWORK CONSTRUCTED FROM PENTANUCLEAR CLUSTERS FOR SELECTIVE SORPTION OF GAS MOLECULES

Disclosed herein are highly interpenetrated robust metal-organic frameworks having the repeat unit Zn 5 (BTA) 6 (TDA) 2 , useful for applications such as selective gas storage, selective gas sorption and/or separation, and gas detection.

Gas separations with redox-active metal-organic frameworks

Fe 2 (dobdc) has a metal-organic framework with a high density of coordinatively-unsaturated Fe II centers lining the pore surface. It can be effectively used to separate O 2 from N 2 and in a number of additional separation applications based on selective, reversible electron transfer reactions. In addition to being an effective O 2 separation material, it can be used for many other processes, including paraffin/olefin separation, nitric oxide/nitrous oxide separation, acetylene storage, and as an oxidation catalyst.

Membrane Separation Apparatus for Fuel Gas Conditioning

Disclosed herein is a membrane separation apparatus that includes an integrated filter element. The apparatus is useful in the conditioning of fuel gas to separate methane from C 2+ hydrocarbons.

Adsorption unit, adsortion device, and method for regenerating thereof

An adsorption unit is provided, including an electrical heating substrate defined with a fluid channel therein, and an adsorptive material layer formed on the electrical heating substrate to contact the fluid channel for adsorbing moisture or volatile organic compounds (VOCs) in a gas flow through the fluid channel.

Gas Expansion Cooling Method

A gas expansion cooling method for reducing hydrocarbon emissions includes feeding a high pressure cooling gas through a valve, decreasing a temperature of the cooling gas by decreasing its pressure; feeding the cooling gas into a heat exchanger; and diverting a hydrocarbon gas into the heat exchanger such that the cooling gas decreases a temperature of the hydrocarbon gas. The cooling gas may be drawn from a preexisting high pressure gas system that serves a purpose other than supplying a coolant for the gas expansion cooling system. A portion of the hydrocarbon gas may be condensed in the heat exchanger to form a hydrocarbon liquid, which may be separated from the hydrocarbon gas in a separation vessel. The hydrocarbon liquid may be recovered, while the hydrocarbon gas may be fed to a ventilation system.

Regenerative thermal oxidizer for the reduction or elimination of supplemental fuel gas consumption

The present invention provides a regenerative thermal oxidizer system, comprising: a recuperative heat exchanger that receives process exhaust gas from an anaerobic digestion process and boosts an inlet temperature of the gas to a second gas temperature; and a regenerative thermal oxidizer that receives the gas from the heat exchanger, further heats/combusts the gas to a third gas temperature, and feeds the gas back through the recuperative heat exchanger, which recoups heat from the gas such that the gas exits the heat exchanger at a fourth gas temperature.

The method of preparation of cerium oxide supported gold-palladium catalysts and its application in destruction of volatile organic compounds

This invention declares the method of preparation of cerium oxide supported palladium-gold catalysts and the process of destruction of volatile organic compounds in air to remove volatile organic compounds using the above catalysts. Destruction of volatile organic compounds in air stream over these catalysts is carried out in a fixed bed reactor to remove volatile organic compounds in air.

Vacuum Truck Scrubber System

A system and method scrub a vapor. In one embodiment, a vacuum truck scrubber system includes a liquid vat. The liquid vat comprises liquid. The system also includes a first carbon canister. The liquid vat is connected to the first carbon canister. The first carbon canister contains carbon. In addition, the system includes a second carbon canister. The first carbon canister is connected to the second carbon canister. The second carbon canister contains carbon. In addition, the system includes a third carbon canister. Moreover, the system includes that a vapor comprising contaminants is fed to the liquid vat and is introduced from the liquid vat to the first carbon canister wherein a portion of the contaminants are removed from the vapor. The vapor is introduced from the first carbon canister to the second carbon canister wherein another portion of the contaminants are removed from the vapor.

Modular ductwork decontamination assembly

A modular ductwork assembly decontaminates an air stream circulating within a heating, ventilation and air conditioning (HVAC) system. The assembly includes one or more of (a) an ionizing module for removing particulates from the air stream, (b) a sterilization module for neutralizing airborne pathogens present in the air stream, (c) an ozone treatment module for neutralizing pathogens or odoriferous or gaseous constituents or volatile organic compounds (VOCs) present in the air stream, optionally (d) baffles for slowing and disrupting the flow rate and promoting turbulence in the air stream traveling through the modules, optionally (e) a fan module for directing a treated air stream, optionally (f) an ozone sensor, optionally (g) a monitoring or ozone control means, and optionally (h) a means of delivering and repurposing generated ozone. Each of the modules is arranged substantially adjacent to at least one of the other modules.

Methane conversion device

Provided herein are methane conversion devices comprising a filter means (e.g., one or more filters), a circulation means (e.g., one or more circulating pumps), a reaction means (e.g., one or more reactor assemblies), a control means (e.g., central process unit, thermo-controller, UV controller, and the like), an energy supply means (e.g., ultra-violet lamp, direct sunlight, heating assembly, and the like).

Process for the oxidation of hydrocarbons

A method for oxidizing hydrocarbons, in particular saturated hydrocarbons, for producing peroxides, alcohols, ketones, aldehydes and/or diacids is described. Also described, is a method for oxidizing a cycloaliphatic saturated hydrocarbon using molecular oxygen for producing ketones/alcohols, and more precisely for oxidizing cyclohexane into cyclohexanol and cyclohexanone using molecular oxygen.

Production of high purity butene-1 from c4 olefins/paraffins mixed gas

A hybrid process comprising an adsorption process and a distillation process for the separation of butene-1 from a C4 hydrocarbon mixture gas including butene-1, trans-2-butene, cis-2-butene, normal butane, isobutane, etc. is provided. The hybrid process comprises introducing a gaseous C4 mixture into the adsorption tower loaded with adsorbents which adsorb olefins selectively to discharge C4 paraffins to the outlet of the tower, desorbing C4 olefins selectively adsorbed in the adsortion tower to produce high purity C4 olefins mixture gas in which isobutane and normal butane was removed, and separating the high C4 olefins mixture gas (a mixture of butene-1, trans-2-butene, cis-2-butene, and a trace amount of C4 paraffins) via distinction to obtain high purity butene-1 including a trace amount of isobutane in the top of the distillation tower and obtain a mixture gas including trans-2-butene, cis-2-butene and a trace amount of normal butane in the bottom of the tower.

Method for degassing a storage tank for liquid products containing volatile organic compounds, in particular petroleum products

Method for degassing a storage tank for liquid products containing volatile organic compounds or VOC, in particular petroleum products, comprising a step a) of introducing an aqueous mixture comprising substances able to interact chemically and/or physically with the VOC in the gaseous state inside the tank, which is kept closed, so as to encourage them to pass from the gaseous phase to the liquid phase, and to remain in the liquid phase. Such introduction step being protracted so as to reduce the concentration of the VOC to a predetermined value functional to having an acceptable explosive limit.

Recovery method and system for delivering extracted btx from gas streams

A recovery method and a system for delivering extracted benzene, toluene, and xylene from a hydrocarbon gas stream is provided. The method includes introducing a feed stream of a BTX-rich hydrocarbon gas into an absorber. The method further includes combining, in the absorber, the hydrocarbon gas with an aprotic solvent, such that the hydrocarbon gas and the aprotic solvent are thoroughly intermixed so that the BTX is absorbed into the aprotic solvent, resulting in the production of a BTX-rich solvent and a substantially BTX-free gas. The method further includes vaporizing, using a vaporizer, the BTX-rich solvent to produce a vaporized BTX-rich solvent, and separating, using a distiller, the BTX from the vaporized BTX-rich solvent for delivering the extracted BTX from the hydrocarbon gas. The separation of the BTX from the vaporized BTX-rich solvent also produces a BTX-lean solvent that is recycled back into the absorber as the aprotic solvent.

Hydrocarbon sorbent materials

Sorbent polymers which are selective to taking up hydrocarbons are provided for separating hydrocarbons from fluids and taking up hydrocarbons from off of and intermixed with solid materials. The hydrocarbons may at least partially be expressed out of and recovered from the polymer by squeezing. The polymers may be re-used for picking up additional hydrocarbons. Methods for producing and using the polymers are also provided.

Canister

A canister includes: a first adsorbent chamber; a second absorbent chamber connected to the first adsorbent chamber via a connection passage to constitute a U turn shaped flow passage; a casing having a charge port and a purge port at a terminal section of the first adsorbent chamber and having a drain port at a terminal section of the second adsorbent chamber; an adsorbent filled within the first and second adsorbent chambers; and an adsorption quantity sensor attached onto the casing to position a detection section of the sensor within the adsorbent, wherein a measurement point of the adsorption quantity sensor is arranged at a position nearer to a second terminal section of the second adsorbent chamber than an intermediate point of a flow passage length between a first terminal section at a drain port side of the second adsorbent chamber and the second terminal section at the connection passage side.

Absorbent for optics and electrical components

The invention general provides a method of absorbing gases from manufactured articles comprising providing a gas absorbent in gaseous contact with the manufactured article wherein the gas absorber comprises activated carbon, molecular sieve, and alkaline salt.

Metal nanoparticle deposited inorganic nanostructure hybrids, uses thereof and processes for their preparation

This invention relates to a hybrid component comprising at least one nanoparticle of inorganic layered compound (in the form of fullerene-like structure or nanotube), and at least one metal nanoparticle, uses thereof as a catalyst, (e.g. photocatalysis) and processes for its preparation.

Absorption cell manufacturing method

A manufacturing method of an absorption cell includes preparing a first absorption layer formed of a mixture of a first absorbent and a second absorbent having a higher density than the first absorbent; coating the surface of the first absorption layer with a protective layer formed of a low-carbonizing point material and the second absorbent so as to prevent generation of dust particles from the first absorption layer; and removing the low-carbonizing point material from the protective layer so as to form a second absorption layer including a plurality of pore parts through which a fluid flows to the first absorption layer.

Regenerable adsorption unit

An adsorption unit comprising an adsorbent hollow fibre in which the fibre includes an active component and means for transmitting heat.

Method of removing heavy hydrocarbons

Heavy hydrocarbons contained in FT off gas of a GTL process are removed by bringing the FT off gas into contact with absorption oil, by introducing the FT off gas into a distillation tower, by cooling the FT off gas or by driving the FT off gas into an adsorbent. A burner tip for heating a reformer tube, using FT off gas as fuel, is prevented from being plugged by the deposition of heavy hydrocarbons contained in the FT off gas.

Hydrocarbon Removal from Gas Process Feed Streams by Regenerable Filters

A system and process for removing hydrocarbons from a gas process feed stream is presented. The treatment process may be, but is not limited to, glycol dehydration, amine sweetening, and MEG reclamation. As an example, a hydrocarbon removal bed containing a solid adsorbent material adsorbs the hydrocarbons in a rich MEG feed stream as it passes through the hydrocarbon removal bed. After the hydrocarbons have been removed, the feed stream flows through a flash separator and a distillation column to reclaim MEG. Alternatively, the hydrocarbon removal bed may be used after the MEG reclamation process to remove hydrocarbons in the distilled water from the distillation column. Spent solid adsorbent material may be regenerated in place.

Increasing scales, capacities, and/or efficiencies in swing adsorption processes with hydrocarbon gas feeds

The invention relates to an increased efficiency high-capacity pressure and/or temperature swing adsorption process comprising: contacting a feedstream at a rate of more than 75 MSCFD with an adsorbent material under conditions sufficient for the adsorbent material to selectively adsorb at least one of the component gases in the feedstream, so as to form a first effluent; and selectively desorbing the adsorbed gas from the adsorption material, so as to form a second effluent The adsorption module can contain rotary valves both on the feed end and on the product end and a rotational member defining a central rotational axis, with the adsorption bed(s) oriented circumferentially thereto. The adsorption bed walls can be angled, the feed end cross-sectional area of the adsorption bed(s) can be larger than the product end, and/or the feed end rotary valve diameter of the module(s) can be larger than the product end.

SMOKE GAS FILTER DEVICE AND TOBACCO PRODUCT

A smoke gas filter device and a tobacco product. The smoke gas filter device is formed with a smoke gas filter channel (L). The smoke gas filter channel (L) is provided with a graphene material segment (). The graphene material segment () is a graphene material powder segment, a graphene material aerogel segment or a graphene material film segment. A graphene material is graphene and/or functionalized graphene. The smoke gas filter device has a large adsorption capacity, and the adsorption is firm, which helps to reduce amount of the toxic substances entering the human body in the smoke gas, reducing the harm to the human body while smoking. 1. A smoke gas filter device , whereinthe smoke gas filter device is formed with a smoke gas filter channel, and a graphene material segment is arranged in the smoke gas filter channel, the graphene material segment is a graphene material powder segment, a graphene material aerogel segment or a graphene material film segment;the graphene material is graphene and/or functionalized graphene; the functionalized graphene is one or more of aminated graphene, carboxylated graphene, sulfonated graphene, thiolated graphene, cyanographene, nitrographene, borate graphene, phosphate graphene, hydroxylated graphene, methylated graphene, allylated graphene, trifluoromethylate graphene, dodecylated graphene, octadecylated graphene, fluorinated graphene, brominated graphene, chlorinated graphene, and iodinated graphene.2. The smoke gas filter device of claim 1 , whereinthe graphene material segment comprises: the graphene, the aminated graphene, the carboxylated graphene, the sulfonated graphene, and the thiolated graphene.3. The smoke gas filter device of claim 1 , whereinthe smoke gas filter device comprises a shell, the shell forms the smoke gas filter channel; the smoke gas filter device further comprises: a first gas-permeable support segment arranged in the smoke gas filter channel and a second gas-permeable support segment arranged in ...

APPARATUS FOR TREATMENT OF THE ATMOSPHERE OF A STORAGE SPACE FOR VEGETABLE PRODUCTS

An apparatus for treating the atmosphere of a storage space for vegetable products with a volume greater than 200 m, includes a contacting device having a packing; an injector configured to inject a liquid flow into the contacting device; and a circulator configured to circulate the storage atmosphere in the contacting device. The contacting device is configured such that the storage atmosphere is brought into contact with the liquid flow by circulation in the packing. 1. An apparatus for treating an atmosphere of a storage space for vegetable products , said storage spece having a volume greater than 200 m , wherein the apparatus comprises:a contacting device comprising a packing;an injector configured to inject a liquid flow into the contacting device;a circulator configured to circulate the storage atmosphere in the contacting device;wherein the contacting device is configured such that the storage atmosphere is brought into contact with the liquid flow by circulation in the packing.2. The apparatus according to claim 1 , wherein the contacting device comprises a reservoir and a dose of liquid stored in the reservoir claim 1 , wherein the liquid comprises at least one volatile biocidal and/or safener product with a boiling temperature between 60 and 280° C. claim 1 , wherein the liquid is evaporated in the contacting device at a temperature below 50° C.3. The apparatus according to claim 2 , further comprising a sensor measuring the concentration of the at least one volatile biocidal and/or safener product in the storage atmosphere and an electronic controller informed by the sensor claim 2 , the electronic controller being programmed to control a flow rate of liquid injected in the contacting device and/or a flow rate of the storage atmosphere circulated in the circulator as a function of the concentration measured by the sensor.4. The apparatus according to claim 1 , wherein the liquid is water claim 1 , such that the contacting device is configured to remove ...

GAS TREATMENT SYSTEM HAVING INCREASED SERVICE LIFE

In order to limit exposure of a fan () and of eventually other internal components to oxidizing species induced by the operation of an ozone generator (), a gas treatment system () of the type operating alternately in treatment mode and in regeneration mode comprises two adsorption devices () which are arranged respectively upstream and downstream of the ozone generator. 1. A gas treatment system capable of operating alternately in a treatment mode and in a regeneration mode , comprising:an inlet and an outlet, and a main path connecting the inlet to the outlet and comprising a treatment portion so as to enable the circulation of a main gas stream from the inlet to the outlet, passing via the treatment portion, in the treatment mode;at least one secondary path having two opposite ends connected to the main path, respectively upstream and downstream of the treatment portion, so that the secondary path and at least the treatment portion of the main path form a recirculation loop enabling closed-loop circulation of a recirculation gas stream in the treatment portion of the main path, in the regeneration mode;a fan disposed in the recirculation loop and configured at least to propel the recirculation gas stream within the recirculation loop in a predetermined circulation direction, in the regeneration mode;a first adsorption device disposed in the treatment portion of the main path, downstream of the fan with respect to the predetermined circulation direction, and capable of adsorbing predefined substances potentially present in the main gas stream, in the treatment mode;an ozone generator disposed in the treatment portion of the main path, downstream of the fan with respect to the predetermined circulation direction, and capable of generating ozone in the regeneration mode; anda switching device configured to keep the inlet and the outlet open, prevent the circulation of the main gas stream via the secondary path or each secondary path, and keep the ozone generator ...

AIR PURIFICATION DEVICE

An air purification unit has a housing which has at least one inlet opening for delivering an air stream and at least one outlet opening for discharging the air stream delivered via the inlet opening. At least one air purification unit and at least one lighting unit are arranged in the housing, wherein the at least one air purification unit and the at least one lighting unit are arranged opposite one another in the housing. The at least one air purification unit has at least one photocatalytically active surface region. The air stream is guided in the housing at least partially along the at least one photocatalytically active surface region of the at least one air purification unit, wherein the surface region is at least partially coated with titanium dioxide or doped with titanium dioxide ions ions. 115-. (canceled)16: Air purification device , comprising a housing having at least one inlet opening for supply of an air flow and at least one outlet opening for discharge of the air flow supplied by way of the inlet opening , wherein at least one air purifying unit and at least one lighting unit are arranged in the housing , wherein the at least one air purifying unit and the at least one lighting unit are arranged opposite one another in the housing , the at least one air purifying unit has at least one photocatalytically active surface region and the air flow is guided in the housing at least partially along the at least one photocatalytically active surface region of the at least one air purifying unit , wherein the at least one photocatalytically active surface region of the at least one air purifying unit can be irradiated with light by the at least one lighting unit and the at least one photocatalytically active surface region is coated at least partly with titanium dioxide or doped with titanium dioxide ions , wherein the at least one air purifying unit comprises two air purifying units arranged opposite one another at the inner walls of the housing , wherein ...

MONOLITHIC TRACE-CONTAMINANT SORBENTS FABRICATED FROM 3D-PRINTED POLYMER PRECURSORS

High purity carbon sorbent monoliths that are particularly effective for the adsorption and subsequent desorption of trace-contaminants, such as ammonia, are produced by 3D-printing polymer monoliths, carbonizing them, and subsequently activating them to produce an effective amount of at least one type of oxygen species on exposed carbon surfaces. The high purity carbon sorbent monoliths are vacuum-regenerable on a time scale of a few minutes. 1. A method for the reversible removal of at least one trace contaminant from a gaseous environment that contains said at least one trace contaminant , comprising the steps:producing a porous, carbon sorbent monolith that is capable of sorption and desorption of said at least one trace contaminant, said capable sorbent monolith being produced by 3D-printing a polymer monolith from a polymer precursor, carbonizing said polymer monolith so as to produce a high-purity carbon monolith, and exposing said high-purity carbon monolith to an oxidizing environment under conditions sufficient to produce an additional at least about 0.25 percent of total carbon weight of at least one oxygen species on exposed surfaces of said high-purity carbon monolith;causing a volume of gas from a gaseous environment that contains said at least one trace contaminant to pass through said capable sorbent monolith, to thereby effect sorption of said at least one trace contaminant from said gas volume; andsubjecting said capable sorbent monolith to vacuum force to thereby effect desorption and removal of a substantial portion of the adsorbed said at least one trace contaminant therefrom.2. A method for the production of a carbon sorbent monolith for removing at least one gas from a gaseous environment in which the at least one gas is contained , comprising the steps:3D-printing of a polymer monolith from a polymer precursor;carbonizing said polymer monolith so as to produce a high-purity carbon monolith by exposure to elevated temperatures of at least ...

PROCESS FOR SEPARATION OF PROPYLENE FROM A LIQUEFIED PETROLEUM GAS STREAM

Process for separating a highly pure propylene product from a liquefied petroleum gas stream is disclosed, which eliminates a C3 splitter having over 120 trays and the additional equipment that a C3 splitter requires. The process includes passing a feed stream to a dividing wall column to produce an overhead stream, a first side draw stream, a second side draw stream, and a product stream. The first side draw stream is passed to a treatment unit to produce a treated stream. The treated stream is passed to a membrane unit and a permeate stream is passed from the membrane unit to produce a polymer grade propylene stream. 1. A process , comprising:passing a feed stream to a dividing wall column to produce an overhead stream; a first side draw stream; a second side draw stream on the opposite side of the dividing wall from the feed stream; and a product stream;flashing the overhead stream to produce an off gas stream and an overhead liquid stream;passing the overhead liquid stream back to the dividing wall column;passing the first side draw stream to a treatment unit to produce a treated stream;passing a first portion of the second side draw stream back to the dividing wall column and passing a second portion of the second side draw stream as a propane product;passing the treated stream to a membrane unit; andpassing a retentate stream from the membrane unit back to the dividing wall column and passing a permeate stream from the membrane unit to produce a polymer grade propylene stream.2. The process of claim 1 , wherein the feed stream may be is a treated liquid petroleum gas stream from a caustic mercaptan oxidation process.3. The process of claim 1 , wherein the dividing wall column comprises about 40 to about 80 trays.4. The process of claim 1 , wherein the membrane unit comprises a plurality of membranes wherein said membranes are facilitated transport membranes comprising a nanoporous support membrane claim 1 , a hydrophilic polymer inside the nanopores on a skin ...

AIR CLEANING SYSTEM

Provided an air cleaning system, which includes: a first reactor which has a first inlet and a first outlet and in which a channel is formed; a first moisture adsorption filter and a first water-soluble gas pollutant adsorption filter that are provided inside the first reactor and are provided so that a gas passes therethrough sequentially while flowing along the channel from the first inlet to the first outlet; a plurality of first magnetrons that are provided at a lateral portion of the first reactor so as to correspond respectively to the first moisture adsorption filter and the first water-soluble gas pollutant adsorption filter and selectively apply microwaves to the first moisture adsorption filter and the first water-soluble gas pollutant adsorption filter; and a heat exchanger that receives hot air containing a water-soluble gas pollutant and moisture, both of which are desorbed from the first moisture adsorption filter and the first water-soluble gas pollutant adsorption filter and are discharged by the first outlet, condenses the moisture into water, and dissolves and discharges the water-soluble gas pollutant in the condensed water. According to the present invention, the air cleaning system can unify a dehumidifying process and a water-soluble gas pollutant removing process to simplify an air cleaning process, recover and recycle waste heat by introducing microwaves and the heat exchanger so as to contribute to energy saving, and be used semi-permanently without a need to periodically replace a filter. 1. An air cleaning system comprising:a first reactor which has a first inlet and a first outlet and in which a channel is formed;a first moisture adsorption filter and a first water-soluble gas pollutant adsorption filter that are provided inside the first reactor and are provided so that a gas passes therethrough sequentially while flowing along the channel from the first inlet to the first outlet;a plurality of first magnetrons that are provided at a ...

METHOD AND DEVICE FOR PERFORMING PCO REACTION AND AIR PURIFIER COMPRISING THE DEVICE

The present invention relates to a method and a device for performing PCO reaction. The method comprises steps of: guiding an air flow into a PCO reactor, which PCO reactor contains photocatalyst for the PCO reaction; splitting the air flow into a first stream and a second stream, wherein quantity of the first stream being less than quantity of the second stream; obtaining the humidity of the photocatalyst; controlling the humidity of the first stream according to the obtained humidity of the photocatalyst; adjusting the humidity of the photocatalyst by guiding the first stream to the photocatalyst; guiding the second stream through the photocatalyst; and illuminating the photocatalyst with light. By controlling the humidity of air passing through the photocatalyst oxidation based on the obtained humidity of the photocatalyst, PCO reaction can be performed effectively. 1. A method for performing photocatalytic oxidation (PCO) reaction , the method comprises:guiding an air flow into a PCO reactor, which PCO reactor contains photocatalyst for the PCO reaction;obtaining the humidity of the photocatalyst using a hygrometersplitting the air flow into a first stream and a second stream wherein quantity of the first stream being less than quantity of the second stream;controlling the humidity of the first stream according to the obtained humidity of the photocatalyst;adjusting the humidity of the photocatalyst by guiding the first stream to the photocatalyst;guiding the second stream through the photocatalyst; and illuminating the photocatalyst with light.2. The method according to claim 1 , wherein the step of controlling comprises modulating the humidity of the first stream to a target humidity according to a difference between the obtained humidity of the photocatalyst and a predetermined humidity of the photocatalyst.3. The method according to claim 1 , wherein the method further comprises detecting the humidity of the air flow; and the step of controlling comprises ...

GRID AND CANISTER USING THE GRID

A grid that includes a plurality of holes perforated therein such that an aperture ratio of the grid increases from the center toward the periphery of the grid. The grid holds absorbents filled inside a filling chamber of a canister having an opening, and keeps the absorbents inside the filling chamber. 1. A grid comprising:a plurality of holes perforated therein such that an aperture ratio of the grid increases from a center toward a periphery of the grid,wherein the grid holds absorbents filled inside a filling chamber of a canister having an opening, and keeps the absorbents inside the filling chamber.2. The grid according to wherein the plurality of holes comprises:a plurality of small holes perforated around the center, anda plurality of large holes perforated along a peripheral edge outside an area where the plurality of small holes is perforated.3. The grid according to wherein the plurality of holes comprises:holes that are arranged radially from the center, wherein the closer the holes are to the center, the smaller the holes are.4. The grid according to claim 1 , wherein the aperture ratio at the center is zero.5. A canister that holds the absorbents inside the filling chamber by using the grid according to .6. The canister according to claim 5 , wherein the absorbents comprise granular activated carbon.7. The canister according to claim 5 , further comprising a spring configured to bias the grid within the canister.8. The canister according to claim 6 , being configured for receiving evaporated fuel from an internal combustion engine.9. The grid according to claim 1 , wherein the grid comprises a metal member in which the plurality of holes is perforated.10. The grid according to claim 9 , wherein the metal member comprises a disc shape.11. The grid according to claim 9 , wherein the metal member comprises a square shape.12. The grid according to claim 9 , wherein the plurality of holes is defined in the metal member by punching.13. The grid according to ...

SCRUBBER, EXHAUST GAS PURIFICATION SYSTEM COMPRISING SCRUBBER, AND AIR PURIFICATION METHOD

A scrubber, an exhaust gas purification system comprising the scrubber, and an air purification method. The treatment water of the scrubber is plasma electrolytic water. The plasma electrolytic water is obtained after water is electrolyzed. The process of electrolysis is carried out in an electromagnetic water treatment device. The electromagnetic water treatment device comprises a cation exchange film, a water flow passage, at least one positive pole panel, at least one negative pole panel, and a magnetic device. 1. A scrubber , characterized in that , treatment water of the scrubber is plasma electrolytic water , and the plasma electrolytic water is prepared by the following method: water is electrolysed , and the plasma electrolytic water is obtained.2. The scrubber according to claim 1 , wherein the water after being electrolysed is immediately used in the scrubber; the water is electrolysed to obtain electrolytic acidic water or electrolytic alkaline water claim 1 , or obtain electrolytic neutral water.3. The scrubber according to claim 2 , wherein oxidation-reduction potential of the electrolytic acidic water is from 800 to 1500 mv; oxidation-reduction potential of the electrolytic alkaline water is from −800 to −1200 mv.4. The scrubber according to claim 1 , wherein the water is electrolysed in a reactor continuously generating high redox water; wherein claim 1 , the reactor continuously generating high redox water consists of a positive pole claim 1 , a negative pole claim 1 , a cation exchange film and an insulating housing claim 1 , the positive pole and the negative pole are disposed on the inner side in longitudinal direction of the insulating housing with acid and alkali resistances claim 1 , and high voltage resistance claim 1 , the two poles are parallel and equidistant claim 1 , the distance between the positive pole and the negative pole is 2-80 mm; a water inlet and a water outlet are disposed on the both sides of the insulating housing claim 1 , ...

ROTARY BED SORPTION SYSTEM INCLUDING RECYCLED ISOLATION LOOP AND PURGE/REGENERATION LOOP

A rotary sorption bed system includes a rotating sorbent mass of a regenerable sorbent material, in a cycle of operation, a given volume of the sorbent mass sequentially passing through first, second, third, fourth, and fifth zones, before returning to the first zone; a process fluid stream directed through the first zone; a regeneration fluid stream directed through the third zone; and an isolation fluid stream that recirculates in a closed loop independent of the process fluid stream and the regeneration fluid stream through the second and fourth zones. The regeneration fluid stream passes through the fifth zone before passing through the third zone. 1. A method of reducing the sorbate concentration of a process fluid stream using a sorption bed system comprising a rotating mass of a regenerable sorbent material , the method comprising the steps of:rotating the sorbent mass so that, in a cycle of operation, a given volume of the sorbent mass sequentially passes through first, second, third, fourth, and fifth zones, before returning to the first zone;passing a process fluid stream through the sorbent mass in the first zone;passing a regeneration fluid stream through the sorbent mass in the third zone; andrecycling an isolation fluid stream in a closed loop, independent of the process fluid stream and the regeneration fluid stream, between the sorbent mass in the fourth zone and in the second zone,wherein the regeneration fluid stream passes through the fifth zone before passing through the third zone.2. The method of claim 1 , wherein the direction of fluid flow in each of the first claim 1 , fourth claim 1 , and fifth zones is the same.3. The method of claim 2 , wherein the direction of fluid flow in each of the second and third zones is the same.4. The method of claim 3 , wherein the direction of fluid flow in each of the first claim 3 , fourth claim 3 , and fifth zones is opposite the direction of fluid flow in each of the second and third zones.5. The method of ...

CENVIRONMENT CONTROL SYSTEM UTILIZING AN ELECTROCHEMICAL CELL

An environment control system utilizes oxygen and humidity control devices that are coupled with an enclosure to independently control the oxygen concentration and the humidity level within the enclosure. An oxygen depletion device may be an oxygen depletion electrolyzer cell that reacts with oxygen within the cell and produces water through electrochemical reactions. A desiccating device may be g, a dehumidification electrolyzer cell, a desiccator, a membrane desiccator or a condenser. A controller may control the amount of voltage and/or current provided to the oxygen depletion electrolyzer cell and therefore the rate of oxygen reduction and may control the amount of voltage and/or current provided to the dehumidification electrolyzer cell and therefore the rate of humidity reduction. The oxygen level may be determined by the measurement of voltage and a limiting current of the oxygen depletion electrolyzer cell. The enclosure may be a food or artifact enclosure. 1. An environment control system that is coupled with an enclosure and comprises:a) an oxygen control electrolyzer cell, i) an ion exchange medium;', 'ii) an anode;', 'iii) a cathode;, 'wherein the oxygen control electrolyzer cell compriseswherein the anode and cathode are configured on opposing sides of the ion exchange medium;wherein the oxygen control electrolyzer cell is in fluid communication with said enclosure; and wherein a power source is coupled with the anode and cathode to provide an electrical potential across the anode and the cathode to initiate electrolysis of water, wherein water is reacted to form reactants on the anode and the cathode to control the humidity level of the enclosure;b) a humidification control device; and 'wherein an oxygen concentration within the enclosure is controlled by the oxygen control', 'c) a controller that is coupled with the power source and the oxygen control electrolyzer cell to control electrical potential across the anode and the cathode;'}electrolyzer and ...

Membrane process for olefin separation

A process is provided to separate a hydrocarbon stream comprising a mixture of light olefins and light paraffins, the process comprising sending the hydrocarbon stream through a pretreatment unit to remove impurities selected from the group consisting of sulfur compounds, arsine, phosphine, methyl acetylene, propadiene, and acetylene to produce a treated hydrocarbon stream; vaporizing the treated hydrocarbon stream to produce a gaseous treated hydrocarbon stream; adding liquid or vapor water to the gaseous treated hydrocarbon stream; then contacting the gaseous treated hydrocarbon stream to a membrane in a membrane system comprising one or more membrane units to produce a permeate stream comprising about 96 to 99.9 wt % light olefins and a retentate stream comprising light paraffins.

HIGH CAPACITY REGENERABLE GRAPHENE-BASED SORBENT

A process of removing a volatile organic compound (VOC) from a gaseous environment, involving contacting a gaseous feedstream containing one or more VOC's, such as an odoriferous compound, an irritant, a contaminant or pollutant, for example, formaldehyde, with a sorbent under conditions sufficient to reduce the concentration of the VOC's in the gaseous feedstream. The sorbent is comprised of a functionalized graphene prepared by amination of graphene oxide. The sorbent is regenerated by adsorbate desorption under mild conditions of air flow. The process can be run through multiple adsorption-desorption cycles in a single fixed bed or swing bed configuration, and is applicable to purifying indoor air and ventilation air as well as reducing pollutants in industrial waste gas streams. 1. A process of removing a volatile organic compound from a gaseous feedstream , comprising contacting the gaseous feedstream comprising an initial concentration of the volatile organic compound with a sorbent under adsorption conditions sufficient to produce an effluent stream comprising a reduced concentration of the volatile organic compound , as compared with the initial concentration; wherein the sorbent comprises a functionalized graphene prepared by a process comprising reacting graphene oxide with an amine of the formula NHR , wherein each R is independently selected from the group consisting of hydrogen , Calkyl , and Caminoalkyl , the reacting occurring under conditions sufficient to produce the functionalized graphene.2. A process of removing a volatile organic compound from a gaseous feedstream , comprising contacting the gaseous feedstream comprising an initial concentration of the volatile organic compound with a sorbent under conditions sufficient to produce an effluent stream comprising a reduced concentration of the volatile organic compound , as compared with the initial concentration; the sorbent comprising a nitrogen and oxygen-functionalized graphene prepared by a ...

Structured Adsorbent Beds, Methods of Producing the Same and uses Thereof

Structured adsorbent beds comprising a high cell density substrate, such as greater than about 1040 cpsi, and a coating comprising adsorbent particles, such as DDR and a binder, such as SiOare provided herein. Methods of preparing the structured adsorbent bed and gas separation processes using the structured adsorbent bed are also provided herein. 1. A structured adsorbent bed for purification of a gas feedstream comprising:a substrate having a cell density greater than 1040 cells per square inch (cpsi); anda coating on the substrate, wherein the coating comprises adsorbent particles and a binder.2. The structured adsorbent bed of claim 1 , wherein the adsorbent particles have an average diameter of about 2 μm to about 40 μm.3. The structured adsorbent bed of claim 1 , wherein the adsorbent particles have an average diameter greater than about 20 μm.4. (canceled)5. The structured adsorbent bed of claim 1 , wherein the adsorbent particles comprise a microporous material.6. The structured adsorbent bed of claim 5 , wherein the microporous material comprises a zeolite.7. The structured adsorbent bed of claim 6 , wherein the zeolite is DDR.8. The structure adsorbent bed of claim 7 , wherein the zeolite is selected from the group consisting of Sigma-1 and ZSM-58.9. The structured adsorbent bed of claim 1 , wherein the binder comprises particles having an average diameter of about 25 nm to about 200 nm.10. The structured adsorbent bed of claim 1 , wherein the binder comprises particles having an average diameter of about 100 nm to about 200 nm.11. The structured adsorbent bed of claim 1 , wherein the binder has a pH greater than 7.12. The structured adsorbent bed of claim 1 , wherein the binder comprises SiO.13. The structured adsorbent bed of claim 1 , wherein the substrate has a cell density of about 1500 cpsi to about 4000 cpsi.14. The structured adsorbent bed of claim 1 , wherein the substrate has a cell density of about 1400 cpsi or greater.15. The structured ...

COMPLEX OXIDE, METHOD FOR PRODUCING SAME, AND EXHAUST GAS PURIFYING CATALYST

Disclosed are a composite oxide which is capable of maintaining a large volume of pores even used in a high temperature environment, and which has excellent heat resistance and catalytic activity, as well as a method for producing the composite oxide and a catalyst for exhaust gas purification employing the composite oxide. The composite oxide contains cerium and at least one element selected from aluminum, silicon, or rare earth metals other than cerium and including yttrium, at a mass ratio of 85:15 to 99:1 in terms oxides, and has a property of exhibiting a not less than 0.30 cm/g, preferably not less than 0.40 cm/g volume of pores with a diameter of not larger than 200 nm, after calcination at 900° C. for 5 hours, and is suitable for a co-catalyst in a catalyst for vehicle exhaust gas purification. 1. A composite oxide comprising (A) cerium and (B) at least one element selected from the group consisting of aluminum , silicon , and rare earth metals other than cerium ,wherein a mass ratio of (A):(B) in the composite oxide is 85:15 to 99:1 in terms oxides, and{'sup': '3', 'wherein the composite oxide has a property of exhibiting a not less than 0.30 cm/g volume of pores with a diameter of not larger than 200 nm, after calcination at 900° C. for 5 hours.'}2. The composite oxide according to claim 1 , having a property of exhibiting a not less than 0.40 cm/g volume of pores with a diameter of not larger than 200 nm claim 1 , after calcination at 900° C. for 5 hours.3. The composite oxide according to claim 1 , having a property of exhibiting a not less than 0.50 cm/g volume of pores with a diameter of not larger than 200 nm claim 1 , after calcination at 900° C. for 5 hours.4. The composite oxide according to claim 1 , having a property of exhibiting a not less than 0.32 cm/g volume of pores with a diameter of not larger than 200 nm claim 1 , after calcination at 800° C. for 5 hours.5. The composite oxide according to claim 1 , comprising at least silicon as (B) ...

LIQUID HYDROCARBON FILTERABILITY SYSTEM

A liquid hydrocarbon filterability system includes a liquid hydrocarbon sample source piping in fluid communication with a liquid hydrocarbon sample container. A filtration media element is in fluid communication with the liquid hydrocarbon sample source piping. Filtered liquid hydrocarbon outlet piping is in fluid communication with and downstream of the filtration media element. A flow or volume measurement element is in fluid communication with the filtered liquid hydrocarbon outlet piping and is configured to measure an amount of liquid hydrocarbon passing through the filtration media element. A constant pressure source is configured to provide liquid hydrocarbon to the filtration media element at a constant pressure. 1. A liquid hydrocarbon filterability system comprising:fuel sample source piping in fluid communication with a liquid fuel sample container;a filtration media element comprising filtration media, the filtration media element is in fluid communication with the fuel sample source piping;filtered fuel outlet piping in fluid communication with and downstream of the filtration media element;a flow or volume measurement element in fluid communication with the filtered fuel outlet piping, configured to measure an amount of fuel passing through the filtration media element; anda constant pressure source configured to provide fuel to the filtration media element at a constant pressure.2. The system of claim 1 , wherein the liquid fuel sample container has a volume of about 0.5 liter or greater.3. The system according to claim 1 , wherein the filtration media has a maximum pore size of about 10 micrometers or less.4. The system according to claim 1 , wherein the filtration media has a filtration surface area of about 1.5 cmor less.5. The system according to claim 1 , wherein constant pressure source is a positive displacement pump and a pressure relief value in fluid connection and between the positive displacement pump and the filtration media element.6. ...

FUEL VAPOR PROCESSING APPARATUS

A fuel vapor processing apparatus may include a first adsorption chamber, a second adsorption chamber and a third adsorption chamber that are arranged in series with respect to a flow of gas. A ratio of a length to a diameter of the second adsorption chamber may be larger than a ratio of a length to a diameter of the first adsorption chamber. A filling ratio of an adsorbent within the second adsorption chamber may be smaller than a filling ratio of an adsorbent within the first adsorption chamber. 1. A fuel vapor processing apparatus , comprising:a main adsorption chamber communicating with a tank port and a purge port and containing a first adsorbent;an adsorption region disposed on a side of an atmospheric port with respect to the main adsorption chamber; the adsorption region includes a low filling-ratio adsorption chamber containing a second adsorbent, and an atmosphere-side adsorption chamber containing a third adsorbent, the atmosphere-side adsorption chamber communicating with the atmospheric port, and the low filling-ratio adsorption chamber being disposed between the atmosphere-side adsorption chamber and the main adsorption chamber;', 'a volumetric capacity of the adsorption region is smaller than a volumetric capacity of the main adsorption chamber;', 'a ratio of a length of the low filling-ratio adsorption chamber in a direction of flow of fuel vapor to a diameter of a circle having an area equivalent to a cross sectional area of the low filling-ratio adsorption chamber perpendicular to the direction of flow of the fuel vapor is larger than a ratio of a length of the main adsorption chamber in a direction of flow of the fuel vapor to a diameter of a circle having an area equivalent to a cross sectional area of the main adsorption chamber perpendicular to the direction of flow of the fuel vapor;', 'a filling ratio of the second adsorbent within the low filling-ratio adsorption chamber is smaller than a filling ratio of the first adsorbent within the main ...

Fuel vapor processing apparatus

A fuel vapor processing apparatus may include a first adsorption chamber, a second adsorption chamber and a third adsorption chamber that are connected in series with respect to a flow of gas. A ratio of a length to a diameter of the second adsorption chamber may be larger than that of the first adsorption chamber. A cross sectional area of each of the second and third adsorption chambers may be smaller than a cross sectional area of the first adsorption chamber.

ADSORPTION PROCESS FOR TREATING NATURAL GAS

A process of treating a natural gas stream is provided comprising sending natural gas stream through a first adsorbent bed to remove water and heavy hydrocarbons (C8+) to produce a partially treated gas stream in which the first adsorbent bed is regenerated by a temperature swing adsorption process and then sending the partially treated gas stream through a second adsorption bed to remove carbon dioxide and lighter hydrocarbons (C7−) to produce a purified natural gas stream wherein said second adsorption bed is regenerated by a temperature pressure swing adsorption process. 1. A process of treating a natural gas stream comprisingsending said natural gas stream through a first adsorbent bed to remove water and heavy hydrocarbons (C8+) to produce a partially treated gas stream wherein said first adsorbent bed is regenerated by a temperature swing adsorption process; andsending said partially treated gas stream through a second adsorption bed to remove carbon dioxide and lighter hydrocarbons (C7−) to produce a purified natural gas stream wherein said second adsorption bed is regenerated by a temperature pressure swing adsorption process.2. The process of wherein said natural gas stream comprises less than about 3 vol % carbon dioxide.3. The process of wherein a closed loop or semi-closed loop regeneration gas stream is used to regenerate said second adsorbent bed.4. The process of wherein a semi-closed loop regeneration gas stream is used to regenerate said second adsorbent bed.5. The process of wherein said temperature pressure swing adsorption process comprises a series of steps in order comprising adsorption claim 1 , co-current depressurization claim 1 , closed-loop heating claim 1 , a purge with heating claim 1 , a purge without heating claim 1 , repressurization of the adsorbent bed and cooling with feed and then withdrawal of product.6. The process of wherein said temperature pressure swing adsorption process comprises a series of steps in order comprising ...

Method for decomposing phenolic by-product

The present disclosure provides a method for decomposing a phenolic by-product, the method including: a step S10 of injecting and mixing a bisphenol A by-product produced in a bisphenol A production process, a mixed by-product stream of phenol by-products produced in a phenol production process, a decomposition apparatus side discharge stream, and a process water stream in a mixing apparatus; a step S20 of injecting a mixing apparatus discharge stream discharged from the mixing apparatus into a phase separation apparatus and phase-separating the mixing apparatus discharge stream into an oil-phase stream and a liquid-phase stream; a step S30 of feeding the oil-phase stream, which is phase-separated in the step S20 and discharged from the phase separation apparatus, to a decomposition apparatus to decompose the oil-phase stream; and a step S40 of circulating the decomposition apparatus side discharge stream obtained by the decomposition in the step S30 to the mixing apparatus in the step S10.

JET ENGINE WITH AT LEAST ONE OIL SEPARATOR, THROUGH WHICH AN AIR-OIL-VOLUME FLOW CAN BE GUIDED

The present invention describes a jet engine with at least one oil separator, through which an air-oil volume flow can be guided out of at least one area supplied with oil for separating the oil. In accordance with the invention the air-oil volume flow from the area supplied with oil can be introduced into the oil separator via an interior of an accessory gearbox casing. The air can be discharged from the oil separator via an air outlet and the oil via an oil outlet. 1. A jet engine with at least one oil separator , through which an air-oil volume flow can be guided out of at least one area supplied with oil for separating the oil , where the air-oil volume flow from the area supplied with oil can be introduced into the oil separator via an interior of an accessory gearbox casing , and the air can be discharged from the oil separator via an air outlet and the oil via an oil outlet , characterized in that baffles are provided in the area of gear pairings of the accessory gearbox , by means of which those areas of gear pairings of the accessory gearbox to be supplied with oil for cooling and lubrication can be shielded from the air-oil volume flow.2. The jet engine in accordance with claim 1 , wherein the oil separator is designed with a porous area that can be set to rotate and which is arranged in the flow path of the air-oil volume flow and can be passed by said air-oil volume flow.3. The jet engine in accordance with claim 2 , wherein at least one deflection area is provided in the flow path of the air-oil volume flow upstream of the porous area of the oil separator claim 2 , in the area of which at least part of the oil can be separated from the air-oil volume flow by the effect of the centrifugal force.4. The jet engine in accordance with claim 2 , wherein upstream of the porous area of the oil separator at least one centrifuge is provided in the flow path of the air-oil volume flow claim 2 , in the area of which at least part of the oil can be separated from ...

Tamper resistant hydrocarbon trap for combustion engines

An air intake system for a combustion engine includes an air intake duct in fluid communication with an engine intake manifold and a conduit component inserted into the air intake duct along a first assembly direction. The air intake system also includes a hydrocarbon (HC) trap secured to the conduit component within the air intake duct. The conduit component defines at least one retention feature to maintain a position of the HC trap such that removal of the HC trap from the air intake duct results in structural compromise of the at least one retention feature. The air intake duct is also configured to shield the at least one retention feature from user access to inhibit user removal of the HC trap.

Gas Processing Apparatus

A gas processing apparatus of an embodiment has stacks, gas flow paths, an AC power supply, and a flow limiter. The stacks are away from each other and in parallel. Each stack includes a dielectric substrate and a first to a third electrode. The first and second electrodes are respectively disposed on the first and second main surfaces of the dielectric substrate. The third electrode is disposed inside the dielectric substrates. The gas flow paths supply a target gas between the stacks, The AC power supply applies an AC voltage across the first and second electrodes and the third electrodes, so as to generate plasma induced flows of the target gas between the dielectric substrates. The flow limiter is disposed on a downstream side of the stacks and limits a flow rate of the target gas.

Separation and Storage of Fluids Using ITQ-55

This invention refers to a microporous crystalline material of zeolitic nature that has, in its calcined state and in the absence of defects in its crystalline matrix manifested by the presence of silanols, the empirical formula 2. The method of claim 1 , wherein the zeolite ITQ-55 has claim 1 , in calcined state and in absence of defects in its crystalline matrix manifested by the presence of silanols claim 1 , an empiric formula{'br': None, 'sub': 1/n', '2', '2', '2', '2, 'i': '−g', 'x(MXO):yYO:gGeO:(1)SiO'}in which{'sup': '+', 'M is selected between H, at least one inorganic cation of charge +n, and a mixture of both,'}X is at least one chemical element of oxidation state +3,Y is at least one chemical element with oxidation state +4 different from Si,x takes a value between 0 and 0.2, both included,y takes a value between 0 and 0.1, both included,g takes a value between 0 and 0.5, both included.3. The method of claim 2 , wherein x takes a value of essentially zero claim 2 , y takes a value of essentially zero claim 2 , and g takes a value of essentially zero.4. The method of claim 2 , wherein a) x takes a value of greater than zero claim 2 , b) y takes a value of greater than zero claim 2 , c) g takes a value of greater than zero claim 2 , or d) a combination thereof.5. The method of claim 1 , wherein forming an adsorbed product fluid stream comprises modifying at least one of a temperature or a pressure of the adsorbent.6. The method of claim 1 , wherein forming an adsorbed product fluid stream comprises exposing a fluid stream comprising a third component to the adsorbent comprising zeolite ITQ-55 claim 1 , at least a portion of the third component being adsorbed by the adsorbent comprising zeolite ITQ-55.7. The method of claim 1 , wherein exposing the input fluid stream to an adsorbent comprises exposing the input fluid stream to an adsorbent in a swing adsorption vessel.8. The method of claim 7 , wherein exposing the input fluid stream to an adsorbent ...

Separation and Storage of Fluids Using ITQ-55

This invention refers to a microporous crystalline material of zeolitic nature that has, in its calcined state and in the absence of defects in its crystalline matrix manifested by the presence of silanols, the empirical formula 2. The method of claim 1 , wherein the zeolite ITQ-55 has claim 1 , in calcined state and in absence of defects in its crystalline matrix manifested by the presence of silanols claim 1 , an empiric formula{'br': None, 'i': x', 'y', ':g', '−g, 'sub': 1/n', '2', '2', '2', '2, '(MXO):YOGeO:(1)SiO'}in which{'sup': '+', 'M is selected between H, at least one inorganic cation of charge +n, and a mixture of both,'}X is at least one chemical element of oxidation state +3,Y is at least one chemical element with oxidation state +4 different from Si,x takes a value between 0 and 0.2, both included,y takes a value between 0 and 0.1, both included,g takes a value between 0 and 0.5, both included.3. The method of claim 2 , wherein x takes a value of essentially zero claim 2 , y takes a value of essentially zero claim 2 , and g takes a value of essentially zero.4. The method of claim 2 , wherein a) x takes a value of greater than zero claim 2 , b) y takes a value of essentially zero claim 2 , c) g takes a value of essentially zero claim 2 , or d) a combination thereof.5. The method of claim 1 , wherein exposing the input fluid stream to an adsorbent comprises exposing the input fluid stream to an adsorbent in a swing adsorption vessel.6. The method of claim 1 , wherein the first temperature and the second temperature are the same claim 1 , wherein the first pressure and the second pressure are the same claim 1 , or a combination thereof.7. The method of claim 1 , wherein forming an adsorbed product fluid stream comprises modifying the second temperature of the adsorbent.8. The method of claim 1 , wherein forming an adsorbed product fluid stream comprises exposing a fluid stream comprising a third component to the adsorbent comprising zeolite ITQ-55 claim 1 ...

ACTIVE FILTRATION SYSTEM FOR CONTROLLING CLEANROOM ENVIRONMENTS

This invention is in the field of systems and methods for controlling contamination in high purity environments. This invention relates generally to particulate filtering and treatment of molecular contamination and process gases in enclosures, such as cleanrooms, contamination controlled manufacturing environments, mini-environments, isolators, glove boxes and restricted air barrier systems (RABS). The invention is capable of chemically transforming molecular contamination and process gases into less reactive or inert reaction products while at the same time decreasing the level of biological and nonbiological particulates. 186-. (canceled)87. A method of treating a cleanroom enclosure , the method comprising the steps of:providing said cleanroom enclosure; andflowing gas from within said cleanroom enclosure through an active filtration system or flowing gas through said active filtration system into said cleanroom enclosure, wherein said active filtration system decomposes one or more of molecular contaminants, particulate contaminants and process gases present in said gas into reaction products and reduces the abundance of particles present in said gas.88. The method of claim 87 , wherein said enclosure comprises a cleanroom claim 87 , an equipment front end module claim 87 , a mini-environment claim 87 , a contamination controlled manufacturing environment claim 87 , a glove box claim 87 , a restricted air barrier system claim 87 , an isolator or a freeze dryer.89. The method of claim 87 , wherein said reaction products are less reactive than said molecular contaminants claim 87 , particulate contaminants claim 87 , or process gases or wherein said reaction products are inert.90. The method of claim 87 , further comprising a step of:monitoring a flow rate of said gas into or out of said enclosure or monitoring a flow rate of said gas through said active filtration system; andmonitoring a particle concentration, a molecular contaminant concentration or both ...

Photocatalytic element for purification and disinfection of air and water and method for the production thereof

The invention relates to the purification and disinfection of air and water. A photocatalytic element consists of sintered glass beads with a pore volume fraction from 20% to 40% and a pore size from 0.1 to 0.5 mm, the surface of which is coated with a titanium dioxide powder, having a specific surface area of 150-400 m 2 /g, at the rate of 0.5-2% relative to the total mass of the photocatalytic element. The surface of the glass beads has a relief shape with a relief depression of 0.5-10 pm. The method for producing the photocatalytic element comprises sintering the glass beads at a temperature that is 5-20° C. higher than the glass softening temperature, modifying the bead surface with chemical etching agents, and coating the bead surface with the titanium dioxide powder from a water suspension at a pH of 2.9±0.1.

Catalyzed ceramic candle filter and method of cleaning process off- or exhaust gases

Ceramic candle filter and use of the filter in the removal of particulate matter in form of soot, ash, metals and met-al compounds, together with hydrocarbons and nitrogen oxides being present in process off-gas or engine exhaust gas, the filter includes a combined SCR and oxidation catalyst being arranged on the dispersion side and within wall of the filter; and a palladium including catalyst arranged on the permeation side and within wall of the filter facing the permeation side.

Nano-sized functional binder

Described are catalytic articles comprising a substrate having a washcoat on the substrate, the washcoat containing a catalytic component having a first average (D50) particle size and a functional binder component having a second average (D50) particle size in the range of about 10 nm to about 1000 nm, wherein the ratio of the first average (D50) particle size to the second average (D50) particle size is greater than about 10:1. The catalytic articles are useful in methods and systems to purify exhaust gas streams from an engine.

Apparatus And Method For Solvent Recovery From Drying Process

Method and apparatus for condensing a majority of the solvent in a process gas stream at low temperatures, e.g., below the freezing point of water, ca. −5° C. The gas stream exiting the condenser step may be further processed in one or more emission control devices, such as a single or multi-step series of concentrator devices, such as zeolite concentrator devices. One or more emission control operations can be carried out downstream of the single or multi-step concentrators. The aforementioned condensing process enables the one or more concentrators to operate in a favorable temperature range for removal of 99% or more of VOC, thereby meeting or exceeding strict environmental regulations.

Nano-sized functional binder

Described are catalytic articles comprising a substrate having a washcoat on the substrate, the washcoat containing a catalytic component having a first average (D50) particle size and a functional binder component having a second average (D50) particle size in the range of about 10 nm to about 1000 nm, wherein the ratio of the first average (D50) particle size to the second average (D50) particle size is greater than about 10:1. The catalytic articles are useful in methods and systems to purify exhaust gas streams from an engine.

EXHAUST GAS TREATMENT SYSTEM

Provided are an exhaust gas treatment system and method for regenerating the exhaust gas treatment system. The exhaust gas treatment system comprises: an oxidation catalyst assembly; a particulate filter downstream of the oxidation catalyst assembly; a reducing agent dosing device downstream of the particulate filter; and a selective catalytic reduction device downstream of the reducing agent dosing device. The oxidation catalyst assembly comprises a first oxidation catalyst to selectively oxidize hydrocarbons in the exhaust stream, at least partially, with substantially no concomitant oxidation of sulfur oxides in the exhaust stream; and a second oxidation catalyst downstream of the first oxidation catalyst, to oxidize hydrocarbons or partially oxidized hydrocarbons having slipped through the first oxidation catalyst, as well as to concomitantly oxidize NO to NO. The system can be regenerated when running on high-sulfur fuels to regenerate the particulate filter as well as remove sulfur species deposited on the system catalysts. 1. An exhaust gas treatment system , arranged for treatment of an exhaust stream that results from a combustion in a combustion engine , the exhaust treatment system comprising: a first oxidation catalyst arranged to selectively oxidize hydrocarbons present in the exhaust stream, at least partially, with substantially no concomitant oxidation of sulfur oxides present in the exhaust stream; and', {'sub': '2', 'a second oxidation catalyst arranged downstream of the first oxidation catalyst, arranged to oxidize hydrocarbons or partially oxidized hydrocarbons having slipped through the first oxidation catalyst, as well as to concomitantly oxidize NO to NO;'}], 'an oxidation catalyst assembly comprisinga particulate filter arranged downstream of the oxidation catalyst assembly;a reducing agent dosing device arranged downstream of the particulate filter, and arranged to supply a reducing agent into the exhaust stream; anda selective catalytic ...

Membrane and Pressure Swing Adsorption Hybrid INRU Process

A process for component separation in a polymer production system, comprising: separating a polymerization product stream into a gas stream and a polymer stream; contacting the polymer stream with a purge gas to yield a purged polymer stream and a spent purge gas stream; introducing the spent purge gas stream to a compressor to produce a compressed gas stream; introducing the compressed gas stream to a first separation unit to produce a first hydrocarbon stream and a membrane unit feed stream; introducing the membrane unit feed stream to a membrane unit to produce a first recovered purge gas stream and a retentate stream; introducing the retentate stream to a second separation unit to produce a second hydrocarbon stream and a PSA unit feed stream; and introducing the PSA unit feed stream to a PSA unit to produce a second recovered purge gas stream and a tail gas stream.

Device for producing and treating a gas stream through an automatically controlled volume of liquid

The device for producing and treating a gas stream (F) includes an exchange enclosure ( 2 ) having at least a first discharge opening ( 2 b ) for a gas stream, means ( 3; 4 ) for supplying the enclosure with a liquid (L), means ( 3; 5 ) for discharging the liquid (L) contained in the exchange enclosure ( 2 ) and aeraulic means ( 6 ), which make it possible, during operation, to create, by means of suction or blowing, an incoming gas stream (F) coming from outside the exchange enclosure ( 2 ), so that said incoming gas stream (F) is introduced into the volume of liquid (V) contained in the exchange enclosure ( 2 ), and an outgoing gas stream (F′), treated by direct contact with said volume of liquid, rises inside the exchange enclosure and is discharged out of the exchange enclosure ( 2 ) through the discharge opening ( 2 b ).

UNCONDITIONED SYNGAS COMPOSITION AND METHOD OF CLEANING UP SAME FOR FISCHER-TROPSCH PROCESSING

A system and method for processing unconditioned syngas first removes solids and semi-volatile organic compounds (SVOC), then removes volatile organic compounds (VOC), and then removes at least one sulfur containing compound from the syngas. Additional processing may be performed depending on such factors as the source of syngas being processed, the products, byproducts and intermediate products desired to be formed, captured or recycled and environmental considerations. 1. An unconditioned syngas generated by steam reforming of biomass in the presence of carbon dioxide and suitable for the production of Fischer-Tropsch products therefrom , the unconditioned syngas having a component composition comprising:(a) a carbon monoxide concentration ranging from between 5 volume percent to 35 volume percent on a dry basis;(b) a hydrogen concentration ranging from between 20 volume percent to 60 volume percent on a dry basis;(c) one or more volatile organic compounds (VOC) selected from the group consisting of benzene, toluene, phenol, styrene, xylene, cresol, and combinations thereof, the VOC concentration ranges from between 500 parts per million by volume to 10,000 parts per million by volume on a dry basis;(d) one or more semi-volatile organic compounds (SVOC) selected from the group consisting of indene, indan, napthalene, methylnapthalene, acenapthylene, acenapthalene, anthracene, phenanthrene, (methyl-) anthracenes/phenanthrenes, pyrene/fluoranthene, methylpyrenes/benzofluorenes, chrysene, benz[a]anthracene, methylchrysenes, methylbenz[a]anthracenes, perylene, benzo[a]pyrene, dibenz[a,kl]anthracene, dibenz[a,h]anthracene, and combinations thereof, the SVOC concentration ranges from between 10 parts per million by volume to 1,000 parts per million by volume on a dry basis;(e) a hydrogen chloride concentration ranging from between greater than 0 parts per million by volume to 1,000 parts per million by volume on a dry basis; and(f) a hydrogen sulfide concentration ...

METHOD FOR THE ELECTROCHEMICAL PRODUCTION OF A GAS PRODUCT CONTAINING CO

A device for the electrochemical production of a product containing CO, and a method for the electrochemical production of a product containing CO, in which a return of a material stream containing the educt and CO is carried out after the electrochemical production. 1. A facility for electrochemical production of a product containing CO , comprising:an electrolysis cell comprising an anode and a cathode;a combined feed device, which is connected to the electrolysis cell and supplies the electrolysis cell with a combined flow of material comprising a first educt flow and a flow of material to be returned comprising CO, which is embodied to supply the electrolysis cell with the combined flow of material comprising the first educt flow and the flow of material to be returned comprising CO;a first return device, which is connected to the feed device and feeds the first educt flow to the combined feed device, which is embodied to feed the first educt flow to the feed device;a first discharge device, which is connected to the electrolysis cell and discharges from the electrolysis cell a first product flow comprising CO, which is embodied to discharge from the electrolysis cell the first product flow comprising CO and to feed the first product flow to a separation device;the separation device, which is connected to the first discharge device and separates the flow of material comprising CO to be returned from the first product flow comprising CO, which is embodied to separate the flow of material comprising CO to be returned from the first product flow comprising CO;a return device, which is connected to the separation device and is connected to the combined feed device and feeds the flow of material comprising CO to be returned to the combined feed device, which is embodied to feed the flow of material comprising CO to be returned to the combined feed device; andat least one cleaning device, which removes carbonyls and/or oils from the first product flow comprising CO, ...

Pushable Multi-Fiber Connector

Multi-fiber, fiber optic cable assemblies may be configured so that the terminal ends of the cables have pre-assembled back-post assemblies that include pre-assembled ferrules, such as MPO ferrules that meet the requisite tolerances needed for fiber optic transmissions. To protect the pre-assembled components from damage prior to and during installation, pre-assembled components may be enclosed within a protective housing. The housing with pre-assembled components may be of a size smaller than fully assembled connectors so as to be sized to fit through a conduit. The remaining connector housing components for the multi-fiber connectors may be provided separately and may be configured to be attached to the back-post assembly after installation of the cable. 1. A terminal assembly for a multi-fiber optical cable , comprising:a back post member configured to couple to the multi-fiber optical cable;a ferrule;an insert configured to align with the ferrule, the insert being one of a pin holder insert and a pin alignment insert; anda housing including a first housing component and a second housing component configured to couple to the first housing component so as to form at least one chamber therebetween for receiving at least the ferrule, each of the first and second housing components being further configured to couple to the back post member.2. The terminal assembly of claim 1 , wherein the at least one chamber is configured to further receive the insert.3. The terminal assembly of claim 1 , further comprising a biasing member disposed between the back post member and the insert claim 1 , the back post member including a cavity configured to receive the biasing member.4. The terminal assembly of claim 1 , wherein the ferrule is an MPO ferrule.5. The terminal assembly of claim 1 , wherein a maximum first dimension of the back post member in a first transverse cross-sectional direction is in a range of about 5 mm to about 9 mm.6. The terminal assembly of claim 5 , ...

Medical residential and laboratory uses of purified air

The air purification technology and methods of the disclosure will reduce the levels of airborne biological, chemical, and particulate contamination and thus improve outcomes in, for example, all areas of basic, applied, commercial, industrial, biological, and chemical research and manufacturing, as well as hospital settings, and long-term care facilities, as set forth herein.

Air Purification Device

An integrated autonomous air purification device for taking in polluted air, carrying it through the inside of the purification device where it passes through a set of filtering elements () that trap the dust particles contained in the air; ultraviolet-light lamps () that transform NOand CO gases in the air into harmless compounds; an activated carbon filter () that traps and eliminates the volatile organic compounds and inorganic acidic gases; second filtering elements () that carry out a second filtering; and an extraction hood () configured to direct the air coming out of the second filtering elements () to at least one nozzle () that expels the air to the outside of the purification device. 1. An autonomous integrated air purification device comprising intake means , configured for taking in air from a nearby environment with particles and polluting gases , and carrying it through the inside of the air purification device , the purifcation device further comprising:first filtering configured to trap the dust particles contained in the outside air and to enable passage of said air, taken in by the intake means to the purification device;{'sub': 'x', 'ultraviolet-light lamps inside rectangular ducts, wherein said ducts are impregnated with a photocatalytic compound configured for, in combination with ultraviolet light generated by the ultraviolet light lamps, transforming the NOand CO gases contained in the air coming out of the first filtering elements into harmless compounds;'}an activated carbon filter configured to trap and eliminate volatile organic compounds and inorganic acidic gases contained in the air that has passed through the rectangular ducts;second filtering elements configured to enable the passage of the air coming out of the activated carbon filter; and to trap the passage of particles contained in said air coming out of the activated carbon filter; andan extraction hood configured to direct the air coming out of the second filtering elements to ...

Filter Medium for Separating Nitrogen Oxides

A filter medium is provided with a layer (A) provided with non-impregnated active carbon, a layer (B) with a solid carrier material that is impregnated with a permanganate salt, and a layer (C) with alkaline impregnated active carbon. The layer (B) and the layer (C) are arranged such that a gas flowing through the filter medium flows through the layer (B) before flowing through the layer (C). The layer (A) is arranged such that the gas flowing through the filter medium flows through the layer (A) before flowing through the layer (B) or the gas flowing through the filter medium flows through the layer (A) after flowing through the layer (C). 1. A filter medium comprising:a layer (A) comprising non-impregnated active carbon,a layer (B) comprising a solid carrier material that is impregnated with a permanganate salt;a layer (C) comprising alkaline impregnated active carbon;wherein the layer (B) and the layer (C) are arranged such that a gas flowing through the filter medium flows through the layer (B) before flowing through the layer (C);wherein the layer (A) is arranged such that the gas flowing through the filter medium flows through the layer (A) before flowing through the layer (B) or the gas flowing through the filter medium flows through the layer (A) after flowing through the layer (C).2. The filter medium according to claim 1 , wherein the layer (A) claim 1 , the layer (B) claim 1 , and the layer (C) each comprise a different composition.3. The filter medium according to claim 1 , wherein at least one of the layer (A) claim 1 , the layer (B) claim 1 , and the layer (C) comprises an agent for stabilization of the layer.4. The filter medium according to claim 3 , wherein claim 3 , when two or three of the layer (A) claim 3 , the layer (B) claim 3 , and the layer (C) comprise the agent for stabilization of the layer claim 3 , the same agent for stabilization of the layer is used in said two or three of the layer (A) claim 3 , the layer (B) claim 3 , and the layer ...

Acid gas capture system and method saving energy by cooling absorbent, which has passed reboiler, by means of steam condensate

The present invention relates to a system and a method therefor capable of reducing the amount of heat which must be supplied to a regeneration tower for regenerating an absorbent in an acid gas capture system for such acid gas as carbon dioxide, and provides an acid gas capture system and an acid gas capture method capable of reducing energy consumption by using the heat from the system itself in an acid gas capture system. The system and method according to the present invention have the benefit of saving energy by lowering the thermal demand of a reboiler by using the low-temperature steam condensate generated in the capture system to cool the upper end of the regeneration tower and a steam generator and compressor.

USE OF MANGANESE OXIDE AND ACTIVATED CARBON FIBERS FOR REMOVING A PARTICLE, VOLATILE ORGANIC COMPOUOND OR OZONE FROM A GAS

The present invention provides for a device for reducing a volatile organic compound (VOC) content of a gas comprising a manganese oxide (MnO) catalyst. The manganese oxide (MnO) catalyst is capable of catalyzing formaldehyde at room temperature, with complete conversion, to COand water vapor. The manganese oxide (MnO) catalyst itself is not consumed by the reaction of formaldehyde into COand water vapor. The present invention also provides for a device for reducing or removing a particle, a VOC and/or ozone from a gas comprising an activated carbon filter (ACF) on a media that is capable of being periodically regenerated. 19.-. (canceled)10. A method for reducing formaldehyde content of a gas , comprising:{'sup': 2', '−1, 'at room temperature, contacting the formaldehyde-containing gas with a manganese-containing catalyst comprising majority non-stoichiometric manganese oxide-hydroxide particles having a Brunner Emmet and Teller (BET) surface area of at least 100 mg, thereby obtaining a gas having a reduced formaldehyde content as compared to the gas prior to contact with the manganese-containing catalyst.'}11. The method of claim 10 , wherein the manganese-containing catalyst comprises majority nsutite.12. The method of claim 10 , wherein the manganese-containing catalyst comprises greater than 90% nsutite.13. The method of claim 10 , wherein the manganese-containing catalyst comprises greater than 95% nsutite.14. The method of claim 10 , wherein the manganese-containing catalyst further comprises cryptomelane.15. The method of claim 11 , wherein the manganese-containing catalyst further comprises cryptomelane.16. The method of claim 12 , wherein the manganese-containing catalyst further comprises cryptomelane.17. The method of claim 12 , wherein the manganese-containing catalyst consists essentially of nsutite and cryptomelane particles.18. The method of claim 13 , wherein the manganese-containing catalyst consists essentially of nsutite and cryptomelane ...

Renewable transportation fuel process with thermal oxidation sysem

A process for treating effluent streams in a renewable transportation fuel production process is described. One or more of the sour water stream and an acid gas stream are treated directly in thermal oxidation section. The process allows the elimination or size reduction of a sour water stripper unit, waste water treatment plant, and sulfur recovery unit.

FUNGI-BACTERIA COMPOSITE MICROECOLOGICS AND METHODS FOR PREPARING AND USING THE SAME

A method for preparing a fungi-bacteria composite microecologics, including: cultivating and conducting high-density fermentations of sp. HJ1 which has been deposited in China Center for Type Culture Collection (CCTCC) with an accession number: CCTCC NO. M2012235, sp. FLX-1 which has been deposited in CCTCC with an accession number: CCTCC NO. M2011242, and sp. LLC which has been deposited in CCTCC with an accession number CCTCC NO. M2014531 to obtain mixed strains; cultivating, fermenting, and vacuum drying the mixed strains to yield a resulting product which is ground into a powder; cultivating and conducting high-density fermentation of sp. HD-2 which has been deposited in CCTCC with an accession number: CCTCC NO. M2014175 and sp. LW-1 which has been deposited in CCTCC with an accession number: CCTCC NO. M2014176 to yield spores; and mixing the powder and the spores. 1. A method for preparing a fungi-bacteria composite microecologics , the method comprising:{'i': Zoogloea', 'Zoogloea', 'Pandoraea', 'Pandoraea', 'Zoogloea', 'Pandoraea, '1) inoculating a first liquid culture medium using a seed culture tube slant of sp. HJ1 to form activated sp. HJ1 and inoculating a second liquid culture medium using a seed culture tube slant of sp. FLX-1 to form activated sp. FLX-1; and conducting high-density fermentation of the activated sp. HJ1 and the activated sp. FLX-1 respectively in a first fermenter and a second fermenter;'}{'i': Ophiostoma', 'Ophiostoma', 'Ophiostoma, '2) inoculating a potato dextrose agar (PDA) culture medium using a seed culture plate of sp. LLC to form activated sp. LLC, and conducting high-density fermentation of the activated sp. LLC in a third fermenter;'}3) mixing strains obtained from the high-density fermentations of 1) and 2) to form mixed strains, sterilizing a solid-state fermentation (SSF) culture medium, inoculating the SSF culture medium with the mixed strains for solid-state fermentation to form a fermented product, controlling a ...

REUSABLE AIR FILTER WITH REPLACEABLE CAPSULE

A filtration apparatus for filtering air is described. It includes a disposable capsule defining an absorptive material space to hold a volume of absorptive material, where the disposable capsule further defines a set of capsule fluid inlets to permit fluid to move through the disposable capsule into and out of the absorptive material space. The apparatus further includes a reusable frame to support the disposable capsule, where the reusable frame defines a frame fluid inlet and the reusable frame is removably couplable to the disposable capsule to direct fluid passing through the filtration apparatus through a fluid passage through the frame fluid inlet and the absorptive space of the disposable capsule. Also disclosed is a set of injection molding molds for forming a filtration apparatus. 1. A filtration apparatus for filtering air , comprising:a disposable capsule defining an absorptive material space to hold a volume of absorptive material, the disposable capsule further defining a set of capsule fluid inlets to permit fluid to move through the disposable capsule into and out of the absorptive material space; anda reusable frame to support the disposable capsule, the reusable frame defining a frame fluid inlet, andwherein the reusable frame is removably couplable to the disposable capsule to direct fluid passing through the filtration apparatus through a fluid passage through the frame fluid inlet and the absorptive space of the disposable capsule.2. The filtration apparatus of claim 1 , wherein the disposable capsule further defines a central passage and the absorptive material space radially surrounds the central passage.3. The filtration apparatus of claim 2 , wherein the reusable frame forms a filtration apparatus outer shell and the disposable capsule is a fabric envelope to contain an absorptive material and to be received within and supported by the reusable frame.4. The filtration apparatus of claim 3 , wherein the fabric envelope is an absorptive ...

Reducing agent injection device, exhaust gas treatment device and exhaust gas treatment method

A reducing agent injection device includes a honeycomb structure having a honeycomb structure body and a pair of electrode members arranged in a side surface of the honeycomb structure body and a urea spraying device spraying a urea water solution in mist form. The urea water solution sprayed from the urea spraying device is supplied inside cells from a first end face of the honeycomb structure body, and urea in the urea water solution supplied in the cells is heated and hydrolyzed inside the electrically heated honeycomb structure body to generate ammonia. The ammonia is discharged outside the honeycomb structure body from a second end face and injected outside. There is provided a reducing agent injection device that can generate and inject ammonia from a urea solution with less energy.

METHANOL PROCESS

A process is described for the synthesis of methanol comprising the steps of: (i) passing a first synthesis gas mixture comprising a make-up gas through a first synthesis reactor containing a cooled methanol synthesis catalyst to form a first product gas stream, (ii) recovering methanol from the first product gas stream thereby forming a first methanol-depleted gas mixture, (iii) combining the first methanol-depleted gas mixture with a loop recycle gas stream to form a second synthesis gas mixture, (iv) passing the second synthesis gas mixture through a second synthesis reactor containing a cooled methanol synthesis catalyst to form a second product gas stream, (v) recovering methanol from the second product gas stream thereby forming a second methanol-depleted gas mixture, and (vi) using at least part of the second methanol-depleted gas mixture as the loop recycle gas stream, wherein the first synthesis reactor has a higher heat transfer per cubic metre of catalyst than the second synthesis reactor, none of the loop recycle gas stream is fed to the first synthesis gas mixture and the recycle ratio of the loop recycle gas stream to form the second synthesis gas mixture is in the range 1.1:1 to 6:1. 1. A process for synthesizing methanol comprising the steps of:(i) passing a first synthesis gas mixture comprising a make-up gas through a first synthesis reactor containing a first cooled methanol synthesis catalyst to form a first product gas stream,(ii) recovering methanol from the first product gas stream to form a first methanol-depleted gas mixture,(iii) combining the first methanol-depleted gas mixture with a loop recycle gas stream to form a second synthesis gas mixture,(iv) passing the second synthesis gas mixture through a second synthesis reactor containing a second cooled methanol synthesis catalyst to form a second product gas stream,(v) recovering methanol from the second product gas stream to form a second methanol-depleted gas mixture, and(vi) using at ...

METHOD FOR ENHANCING DEGRADATION OF ESTER VOCS WITH CERIUM OXIDE SUPPORTED PALLADIUM SINGLE ATOM CATALYST UNDER LOW-TEMPERATURE MICROWAVE

A method for enhancing degradation of ester volatile organic compounds with a cerium oxide supported palladium single atom catalyst under low-temperature microwave comprises the steps of firstly preparing a single atom catalyst Pd/CeO, adding the catalyst Pd/CeOinto a reaction cavity, initiating microwave radiation to enhance the catalysis reaction, and quickly introducing an ester compound with a concentration of 50˜5000 mg/mand a space velocity of 2000˜100000 hinto the reaction cavity from a vapor phase sampling port to react when the reaction temperature is 10˜80° C. A catalyst packed column is provided in the reaction cavity, the vapor phase sampling port is defined at the bottom of the reaction cavity, and an exhaust port is defined at the top of the cavity. The microwave method can enhance and activate active sites, prevent the aging of active sites, and enable the chemical reaction rate to be increased by more than 17.9%. 1. A method for enhancing degradation of ester volatile organic compounds (VOCs) with a cerium oxide loaded palladium single atom catalyst under low-temperature microwave , comprising the following steps:(a) preparation of a catalyst:(1) dissolving a cerium-containing compound into deionized water to form a solution; adding NaOH in the solution, until pH=8˜10, stirring, and then reacting in a water bath pot to obtain cerium oxide-containing solution;(2) adding a palladium-containing compound and sodium borohydride together into the cerium oxide-containing solution to react;(3) after the reaction is ended, centrifuging the solution on a centrifuge, and then removing the solution in a centrifuge tube to obtain a precipitation product; and{'sub': 2', '2', '2, '(4) washing the precipitation product with deionized water, drying overnight, and calcining in a muffle furnace at Natmosphere containing 3-7% of Hto obtain a single atom catalyst Pd/CeO;'}(b) microwave-assisted enhancement of degradation:{'sub': '2', 'sup': 3', '−1, 'adding the catalyst ...

Canister

A canister includes a main casing, a first port formed in a wall of the main casing, and a first adsorbent section within the main casing. The first adsorbent section and the wall of the main casing define a space section therebetween. The first adsorbent section includes a first adsorbent and a first retainer holding the first adsorbent. The canister also includes a first elastic element disposed in the space section. The first elastic element urges the first retainer to elastically hold the first adsorbent. In addition, the canister includes a subcasing integral to the wall of the main casing. The subcasing is positioned within the space section. Further, the canister includes a second adsorbent section in communication with the first port. The second adsorbent section includes a second adsorbent disposed within the subcasing. Still further, the canister includes a second retainer holding the second adsorbent. 1. A canister comprising:a main casing;a first port formed in a wall of the main casing; a first adsorbent; and', 'a first retainer holding the first adsorbent;, 'a first adsorbent section within the main casing, wherein the first adsorbent section and the wall of the main casing defining a space section therebetween, and wherein the first adsorbent section comprisesa first elastic element disposed in the space section, wherein the first elastic element biases the first retainer to elastically hold the first adsorbent of the first adsorbent section,a subcasing integral with the wall of the main casing, wherein the subcasing is positioned within the space section; and a second adsorbent disposed within the subcasing; and', 'a second retainer holding the second adsorbent., 'a second adsorbent section in fluid communication with the first port, wherein the second adsorbent section comprises2. The canister according to claim 1 , wherein the main casing comprises:a main casing body having an open top and a bottom; anda closure closing the open top opening of the ...

Carbon dioxide separation membranes and process

This invention discloses a thin-film composite membrane and process for the separation of carbon dioxide from non-hydrophilic gases such as methane, hydrogen, and nitrogen. The thin-film composite membrane has a gas-separation layer and a nonporous high-diffusion-rate layer, and has carbon dioxide to non-hydrophilic gas selectivity that is greater than the intrinsic selectivity of the gas-separation layer alone.