КОМПОЗИЦИЯ КАТАЛИЗАТОРА И СПОСОБ СЕЛЕКТИВНОГО ОКИСЛЕНИЯ ЭТАНА И/ИЛИ ЭТИЛЕНА ДО УКСУСНОЙ КИСЛОТЫ

Изобретение относится к композиции катализатора; способу его приготовления и способу селективного окисления этана и/или этилена до уксусной кислоты. Описана композиция катализатора для окисления этана и/или этилена до уксусной кислоты на носителе, состоящая в сочетании с кислородом из элементов - молибден, ванадий, ниобий и титан в соответствии с эмпирической формулой: ! MoaTicVdNbeOx ! где а, с, d, e обозначают такие грамм-атомные соотношения элементов, при которых ! 0<а≤1; ! 0,05<с≤2; ! 0 Подробнее

КАТАЛИЗАТОР ОЧИСТКИ ВЫХЛОПНЫХ ГАЗОВ И СПОСОБ ЕГО ПРИГОТОВЛЕНИЯ

Данное изобретение может быть использовано в области охраны окружающей среды. Катализатор содержит металлоксидную подложку, в основном состоящую из оксида церия и/или циркония. На металлоксидной подложке непосредственно закреплены благородный металл и оксид металла или полуметалла (МОх), где М выбран из группы, состоящей из железа, галлия, серебра, молибдена, вольфрама, таллия и висмута. Металл или полуметалл М имеет электроотрицательность, большую, чем электроотрицательность церия или циркония. Технический результат - повышение активности благородного металла в катализаторе при низких температурах, предотвращение спекания благородного металла. 2 н. и 9 з.п. ф-лы, 3 ил., 9 табл.

КОМПОЗИЦИЯ С ПОВЫШЕННОЙ КИСЛОТНОСТЬЮ НА ОСНОВЕ ОКСИДОВ ЦИРКОНИЯ, КРЕМНИЯ И, ПО МЕНЬШЕЙ МЕРЕ, ОДНОГО ДРУГОГО ЭЛЕМЕНТА, ВЫБРАННОГО ИЗ ТИТАНА, АЛЮМИНИЯ, ВОЛЬФРАМА, МОЛИБДЕНА, ЦЕРИЯ, ЖЕЛЕЗА, ОЛОВА, ЦИНКА И МАРГАНЦА

... 1. Композиция на основе оксида циркония, оксида кремния и, по меньшей мере, одного оксида другого элемента М, выбранного из титана, алюминия, вольфрама, молибдена, церия, железа, олова, цинка и марганца в следующих массовых пропорциях различных элементов: ! оксид кремния: 5-30%, ! оксид элемента М:1-20%, ! достаточное количество до 100% оксида циркония, ! отличающаяся тем, что она обладает, кроме того, кислотностью, определенную в результате испытания с использованием метилбутанола, равную, по меньшей мере, 90%. ! 2. Композиция по п.1, отличающаяся тем, что элемент М представляет собой вольфрам, и после кальцинации при 900°С в течение 4 ч она обладает удельной поверхностью, равной, по меньшей мере, 65 м2/г. ! 3. Композиция по п.1, отличающаяся тем, что элемент М отличен от вольфрама, и после кальцинации при 900°С в течение 4 ч она имеет удельную поверхность, равную, по меньшей мере, 95 м2/г. ! 4. Композиция по любому из предыдущих пунктов, отличающаяся тем, что она обладает кислотностью ...

МОДИФИЦИРОВАННЫЙ PT/RU КАТАЛИЗАТОР ДЛЯ РАСКРЫТИЯ КОЛЬЦА И СПОСОБ ИСПОЛЬЗОВАНИЯ ЭТОГО КАТАЛИЗАТОРА

... 1. Катализатор для раскрытия нафтеновых колец, содержащий платиновый компонент, рутениевый компонент и модифицирующий компонент, все диспергированные на подложке из тугоплавкого неорганического оксида, и характеризующийся тем, что, по меньшей мере, 50% платинового и рутениевого компонентов присутствуют в виде частиц, где на поверхности частиц имеется более высокая концентрация рутения, чем в центре частиц. ! 2. Катализатор по п.1, где модификатор выбран из группы, состоящей из редкоземельных элементов, рения, молибдена, вольфрама, олова, германия и их смесей. ! 3. Катализатор по п.1, где подложка из тугоплавкого неорганического оксида выбрана из группы, состоящей из оксидов алюминия, оксида кремния, оксида кремния-оксида алюминия, оксида циркония, оксида титана и их смесей. ! 4. Катализатор по п.1 или 2, или 3, где на поверхности частиц рутения содержится, по меньшей мере, на 10 атомных % больше, чем в центре частиц. ! 5. Катализатор по п.1 или 2, или 3, кроме того, характеризующийся тем ...

КАТАЛИЗАТОР И СПОСОБ ВОССТАНОВЛЕНИЯ ОКСИДА АЗОТА В ОТХОДЯЩЕМ ГАЗЕ

Катализатор для очистки газа

Катализатор для измеризации углеводородов с @ -с @

In Zonen aufgeteilter katalysierter Substratmonolith

Beschrieben wird ein in Zonen aufgeteilter katalysierter Substratmonolith, der eine erste Zone und eine zweite Zone umfasst, wobei die erste Zone und die zweite Zone axial in Reihe angeordnet sind, wobei die erste Zone ein auf einen Träger geladenes Platingruppenmetall und ein erstes Oxid eines unedlen Metalls, das aus der Gruppe ausgewählt ist, die aus Eisenoxid, Manganoxid, Kupferoxid, Zinkoxid, Nickeloxid und Gemischen hiervon besteht, oder ein erstes unedles Metall, das aus der Gruppe ausgewählt ist, die aus Eisen, Mangan, Kupfer, Zink, Nickel und Gemischen hiervon besteht, das auf ein anorganisches Oxid geladen ist, umfasst und die zweite Zone auf einen Zeolith geladenes Kupfer oder Eisen und ein zweites Oxid eines unedlen Metalls, das aus der Gruppe ausgewählt ist, die aus Eisenoxid, Manganoxid, Kupferoxid, Zinkoxid, Nickeloxid und Gemischen hiervon besteht, oder ein zweites unedles Metall, das aus der Gruppe ausgewählt ist, die aus Eisen, Mangan, Kupfer, Zink, Nickel und Gemischen ...

Ammonia oxidation catalyst

OXIDIC CATALYST COMPOSITIONS CONTAINING A PLATINUM GROUP METAL

... 1474589 Oxidation catalysts for burners ENGELHARD MINERALS & CHEMICALS CORP 10 Dec 1974 [10 Dec 1973] 53460/74 Headings B1E and B1F Catalyst compositions comprise a catalytically active calcined composite of alumina, an oxide of chromium and/or tungsten, calcium, strontium, barium, silicon and/or tin oxide and, optionally, zirconium oxide and a platinum group metal component incorporated in the composite after its calcination. The calcination of the composite is performed at a temperature of at least 500‹C and the calcined composite has a surface area of at least 20 m2/g after calcination at 1200‹C for 2 hours. The composite may be surported on an inert carrier such as a ceramic honeycomb before or after incorporation of the platinum group metal component. The catalysts may be promoted by an oxide or sulphide of Mn, V, Cu, Fe, Co or Ni. They may be used in the oxidation of organic compounds and carbon monoxide in, for example, exhaust gases and in the combustion of fuels. The catalytic ...

Catalyst and process for nitric oxide reduction in a waste gas

Zoned catalysed substrate monolith

PROCESS FOR THE CATALYTIC METATHESIS OF OLEFINS

... 1491079 Disproportionating olefins ENTREPRISE DE RECHERCHES ET D'ACTIVITES PETROLIERS (ELF) 14 March 1975 [15 March 1974] 10757/75 Heading C5E [Also in Division B1] Olefins are metathesized by heating in the presence of a catalyst which has been prepared by treating an alumina carrier with a gaseous chlorinating agent at 25 to 400‹ C. and adding a tungsten and/or molybdenum compound to the chlorinated carrier. The metathesis is preferably performed at -20‹C. to 150‹C. Examples describe the metathesis of cis-2- pentene using catalysts comprising alumina chlorinated with CCl 4 vapour and W(CO) 5 .P# 3 , WCl 6 or Mo(CO) 6 in chlorobenzene or hexane or alumina chlorinated with CCl 4 vapour and then impregnated with W(CO) 5 .P# 3 in benzene and dried.

A process for the conversion of alpha-alkylstyrenes

Para-terphenyls are obtained by contacting a dimer of an alpha-alkylstyrene with iodine, an iodine-containing compound or an oxide of a Group 6 metal as catalyst; also obtained are alpha-alkylstyrene monomer and a tertiary alkyl aromatic hydrocarbon. In a preferred 3-stage process a tertiary alkyl substituted aromatic hydrocarbon is first oxidised to the hydroperoxide which is then decomposed to obtain a phenol. The by-product alpha-alkylstyrene is dimerised in a second stage and catalytically converted to a para-terphenyl in a third stage. The tertiary alkyl aromatic hydrocarbon byproduct is recycled to the first stage and the alpha-alkylstyrene monomer to the dimerisation. The alkylstyrene may have a C1-C5 alkyl group on the alpha carbon and may contain up to three nuclear alkyl substituents; alpha-methylstyrene is preferred in which case cumene is used as the tertiary alkyl compound. Dimerisation may be effected at 65 DEG C.-105 DEG C. with 0.5-5 volumes of 30%-65% sulphuric acid per ...

Metal fibres for catalyst nonwovens.

Metal fibres for catalyst nonwovens.

KONTAKTMASSE ENTHALTENDES HEIZGERAET ZUR HETEROGENEN KATALYSE

Procedure for the transformation of hydrocarbon oils

CATALYST FOR PRODUCTION OF HYDROGEN

METHOD AND APPARATUS FOR TREATING AMMONIA-CONTAINING EFFLUENT

A process for treating an ammonia-containing wastewater, which comprises the steps of contacting an ammonia-containing wastewater A with steam C (carrier gas) in a stripping column (7) to transfer NH3 to a gas phase from the ammonia- containing wastewater A; heating the resultant gas containing NH3 in a preheater (11)and then contacting the gas with a catalyst layer (13) to decompose NH3 into nitrogen and water; measuring the NOx (or N2O) content of the gas generated in the above decomposition step; and adjusting, based on the measured values of the NOx (or N2O) content, one or more of (a) the feed rate of the ammonia-containing wastewater, (b) the NH3 content of the ammonia- containing wastewater and (c) the flow rate of the gas containing NH3 to be contacted with the catalyst layer [when the N2O content is measured, one or more of the flow rate of the carrier gas, the flow rate of an added gas such as air, and the flow rate of the part of the gas generated in the above decomposition step ...

HYDROCARBON ISOMERIZATION CATALYSTS AND PROCEDURES FOR THE PREPARATION AND USE THEREOF

MODIFIED PT/RU CATALYST FOR RING OPENING AND PROCESS USING THE CATALYST

A catalyst for opening naphthenic rings has been developed. The catalyst comprises ruthenium and platinum as the active catalytic metals and a modifier with cerium being a preferred modifier. At least 50% of the platinum and ruthenium components are present as particles wherein more ruthenium is present on the surface of the particles than in the center. All of these components are dispersed on a metal oxide support such as aluminas. A ring opening process using the catalyst is also described.

MODIFIED SOLID OXIDE CATALYST AND PROCESS FOR PRODUCING SAME

A catalyst comprises a hydrogenation/dehydrogenation component, such as a noble metal, deposited on an acidic solid product formed by modifying a Group IVB metal oxide with an oxyanion of a Group VIB metal. An example of this catalyst is platinum deposited on zirconia modified with tungstate. The catalyst may be used, for example, to isomerize C4 to C8 paraffins.

PROCESS FOR THE TREATMENT OF GASOLINE FRACTIONS CONTAINING DIOLEFINS, STYRENE COMPOUNDS AND OPTIONALLY MERCAPTANS

On décrit un procédé d'hydrogénation des dioléfines et des composés styréniques (en particulier le styrène) dans les essences, notamment les essences de vapocraquag e, de pyrolyse ou de craquage catalytique, ce procédé permettant aussi une élimination substantielle des mercaptans lorsqu'ils sont présents dans ces essences. Le proc édé décrit utilise un catalyseur comprenant un support choisi parmi les oxydes réfractaires sur lequel sont déposés au moins un métal noble du groupe VIII, tel que le palladium , et au moins un métal du groupe VIB, tel que le molybdène et/ou le tungstène.

Verfahren zur Herstellung von Arylcycloalkanen bzw. Alkyl-arylcycloalkanen

НЕТКАНЫЙ МАТЕРИАЛ ИЛИ СЕТКА ИЗ МЕТАЛЛИЧЕСКИХ ВОЛОКОН, ИХ ПРИМЕНЕНИЕ И СПОСОБ ИХ ИЗГОТОВЛЕНИЯ

Нетканый материал или сетка из металлических волокон на основе одного или нескольких элементов из группы платины, палладия, родия, рутения или иридия с содержанием до 30 мас. % одного или нескольких дополнительных легирующих элементов из группы никеля, кобальта, золота, рения, молибдена и вольфрама, согласно изобретению, имеет 1-500 масс. частей на миллион бора или фосфора. Нетканый материал или сетка, в частности, в качестве катализатора для получения угарного газа или для получения синильной кислоты, состоит из таких волокон. Для изготовления волокна на основе благородных металлов с содержанием дополнительных легирующих металлов до 30 мас. % путем вытягивания волокон из расплава точку плавления благородного металла перед вытягиванием снижают, по крайней мере, на результате добавления бора или фосфора, а из волокон бор или фосфор снова удаляют.

CATALYTIC CONVERSION OF SATURATED HYDROCARBONS TO HIGHER AND LOWER MOLECULAR WEIGHT HYDROCARBONS

HYDROGENIZING PROCESS SELECTIVE Of a CUT GASOLINE IN THE PRESENCE OF a CATALYST SULPHIDE SUPPORTS PREPARES BY MEANS OF TO LESS the ONE CYCLIC OLIGOSACCHARIDE

On décrit un procédé d'hydrogénation sélective d'une coupe essence contenant des hydrocarbures polyinsaturés ayant au moins 2 atomes de carbone par molécule et ayant un point d'ébullition final inférieur ou égal à 250°C, consistant en la mise en contact de ladite coupe essence avec au moins un catalyseur dont la phase active comprend au moins un métal du groupe VIII et au moins un métal du groupe VIB déposés sur un support, ledit catalyseur étant préparé selon un procédé comprenant au moins : i) une étape de mise en contact d'au moins dudit support avec au moins une solution contenant au moins un précurseur d'au moins dudit métal du groupe VIII et au moins un précurseur d'au moins dudit métal du groupe VIB, ii) une étape de mise en contact d'au moins dudit support avec au moins un composé organique formé d'au moins un oligosaccharide cyclique composé d'au moins 6 sous-unités glucopyranose liées en α-(1,4), iii) une étape de calcination pour obtenir au moins ledit métal du groupe VIII et ...

METHOD FOR REMOVING ARSENIC FROM HYDROCARBON FEEDSTOCK

L'invention concerne un procédé d'élimination d'arsenic d'une charge d'hydrocarbures au moins en partie liquide comprenant au moins les étapes suivantes: a) on met en contact la charge d'hydrocarbures, de l'hydrogène et une première masse de captation comprenant un support et au moins un métal M1 du groupe VIB et au moins deux métaux M2 et M3 du groupe VIII; b) on met en contact la charge d'hydrocarbures, de l'hydrogène et une seconde masse de captation sous forme sulfure comprenant un support et du nickel, la teneur en nickel étant d'au moins 5% poids de NiO par rapport au poids total de la seconde masse de captation, dans lequel l'étape a) est soit réalisée avant l'étape b), soit réalisée simultanément avec l'étape b).

METAL FIBRES FOR CATALYST NONWOVENS

METHOD FOR CONVERTING SATURATED HYDROCARBONS IN TERMS MEANS

MASSE DE CONTACT POUR CATALYSE HETEROGENE

CATALYST FOR WATER GAS SHIFT REACTION, METHOD FOR REMOVING CARBON MONOXIDE IN HYDROGEN GAS AND ELECTRIC POWER-GENERATING SYSTEM OF FUEL CELL

L'invention concerne un catalyseur de conversion catalytique, se caractérisant par le fait qu'il contient un support d'oxyde métallique servant de support à du platine. Ce catalyseur peut s'utiliser pour éliminer un monoxyde de carbone dans un gaz hydrogène, en particulier en tant que catalyseur de conversion catalytique destiné à éliminer le monoxyde de carbone contenu dans un gaz réformé dans le système de génération d'énergie électrique d'une pile à combustible. On peut utiliser le catalyseur pour éliminer de manière efficace le monoxyde de carbone dans un gaz hydrogène dans une large plage de températures.

Hydrocarbon isomerization catalysts and procedures for the preparation thereof

Hydrocarbon isomerization catalysts comprising typically refractory mineral oxide carrier such as alumina and a halogen element present in combined form, together with, in the free or combined state: a platinum-group metal; second element from the group consisting of titanium, zirconium, tungsten and molybdenum; and a metal halide such as AlCl3.

CATALYST TO ATTAIN LOW SULFUR DIESEL

This invention relates to a hydrodesulfurization catalyst and a method for preparing the catalyst by spray pyrolysis. The catalyst is useful for the hydrodesulfurization of gas oils, particularly diesel. The catalyst particles can include at least one metal selected from molybdenum, cobalt and nickel, and a silicon dioxide support. The spray pyrolysis technique allows for the preparation of catalyst particles having high loading of catalyst on the substrate.

Catalyst Supports Having Crystalline Support Modifiers

A catalyst comprising a first metal, a silicaceous support, and at least one metasilicate support modifier, wherein at least 1 wt. % of the at least one metasilicate support modifier is crystalline in phase, as determined by x-ray diffraction. The invention also relates to processes for forming such catalysts, to supports used therein, and to processes for hydrogenating acetic acid in the presence of such catalysts.

Method for the preparation of a catalysed monolith

A method for the preparation of a catalyzed monolithic body or a catalyzed particular filter. The method includes the step of suctioning a sol-solution containing catalytically active material and metal oxide catalyst carriers or precursors thereof into pores of a monolithic substrate, solely by capillary forces and without the application of vacuum or pressure.

ТВЕРДЫЙ КИСЛОТНЫЙ КАТАЛИЗАТОР И СПОСОБ ЕГО ПРИМЕНЕНИЯ

Изобретение относится к катализатору для использования его в способах конверсии углеводородов и, более конкретно, к получению модифицированных анионами твердых кислотных катализаторов. Описана каталитическая композиция, содержащая: a) кислородное соединение элемента, выбранного из группы IVB Периодической системы элементов; b) кислородное соединение элемента, выбранного из группы VIB Периодической системы элементов; c) не менее примерно 1 мас.% частиц коллоидального диоксида кремния по отношению к общей массе катализатора; d) соединение алюминия; и е) металл группы VIII. Описан способ химической конверсии углеводорода, включающий взаимодействие углеводорода в условиях реакции химической конверсии с указанной каталитической композицией. Технический эффект - повышение активности и селективности каталитической композиции. 2 н. и 14 з.п. ф-лы, 3 табл.

Катализатор гидрокрекинга углеводородного сырья

Изобретение относится к катализаторам гидрокрекинга углеводородного сырья. Описан катализатор гидрокрекинга углеводородного сырья, содержащий, мас.%: WO3 – 20.2-30.3, NiO – 4.6-6.9, цеолит Y с поверхностью, обогащенной кремнием, 0.7-1.7, цеолит Y с поверхностью, обогащенной алюминием, 2.2-3.5, аморфный алюмосиликат 27.6-33.8, γ-Al2O3 – остальное; причем носитель содержит одновременно два цеолита Y, имеющих различную концентрацию кислотных центров и распределение алюминия между поверхностью кристаллов и их объемом; в качестве первого цеолита носитель содержит цеолит Y с более высокой концентрацией кислотных центров и c соотношением поверхностной к объемной концентрации кремния к алюминию Si/Al = 1.2-2.1; в качестве второго цеолита носитель содержит цеолит Y с более низкой концентрацией кислотных центров и c соотношением поверхностной к объемной концентрации кремния к алюминия Si/Al = 0.7-0.9, при этом никель и вольфрам содержатся в форме высокодисперсных оксидов, полученных из биметаллических ...

СПОСОБ ПОЛУЧЕНИЯ 1,3-БУТАДИЕНА

Предложен способ получения бутадиена-1,3, включающий взаимодействие формальдегидсодержащего сырья с пропиленом в присутствии твердофазного катализатора в условиях газофазной конденсации при атмосферном давлении. В качестве катализатора используют гетерополикислоту, выбранную из ряда: 12-фосфорвольфрамовая, 12-вольфрамокремниевая, 12-фосформолибденовая, содержащуюся в количестве от 5 до 99 мас. % на пористом носителе. Технический результат – упрощение процесса за счет его проведения в одну стадию, а также повышение выхода целевого продукта и селективности образования бутадиена при высокой стабильности работы катализатора во времени. 4 з.п. ф-лы, 1 табл., 20 пр.

Verfahren zur Ringöffnung von zyklischen Verbindungen

PROCESS FOR PRODUCING PHENOLS

Ammonia oxidation catalyst

Provided is a catalyst article for treating an emission gas comprising (a) a noble metal catalyst layer comprising one or more noble metals disposed on a first refractory metal oxide support; and (b) a vanadium catalyst layer comprising vanadium pre-fixed on a second refractory metal oxide support selected from alumina, titania, zirconia, ceria, silica, and mixtures of these, wherein the first catalyst layer is in physical contact with said second catalyst layer. Also provided is a method for making such a catalyst article, a method for treating gas emissions using such an article, and an emission gas treatment system incorporating such an article.

CATALYTIC APPARATUS

... 1522338 Catalytic apparatus SOC LYONNAISE DES APPLICATIONS CATALYTIQUES SA 20 Oct 1975 [21 Oct 1974] 42943/75 Headings B1E and B1F Apparatus for heterogeneous catalysis, e.g. forming part of a natural gas heating device, comprises a vessel having a gas inlet opening, a catalyst layer in the vessel and comprising at least one Group VIII metal as catalyst deposited on a support of alumina fibres of surface area 120-150 m2/g, a porous diffusion layer located in the vessel upstream of the catalyst layer, and means within that space for evenly distributing gas to the diffusion layer. The diffusion layer may be formed of mineral wool and may be in contact with the catalyst layer. The distribution means may be partitions in the said space. The catalyst support may be in the form of a sheet of thickness 5-20mm. The catalyst suitably comprises platinum or palladium and may further comprise a Group VI (e.g. chromium) or rare earth (e.g. cerium) element. An element of period 7 or compound ...

PROCEDURE FOR THE PRODUCTION OF AN OXYGEN-CONTAINING CONNECTION USING A CATALYST ON BASIS OF PALLADIUM, TUNGSTEN AND ZIRCON

GAS CELL CATHODE CATALYST

CONTACT MASS CONTAINING HEATER TO THE HETEROGENEOUS CATALYSIS

Modified Pt/Ru catalyst for ring opening and process using the catalyst

METHOD OF ISOMERIZING HYDROCARBON

NOBLE METAL CATALYST

HYDROCARBON ISOMERIZATION CATALYSTS

HYDROREFINING CATALYST

NOBLE METAL CATALYZED REACTIONS

SUPPORTED CATALYST FOR PURIFYING WASTE GASES AND PROCESS FOR PRODUCING SAID CATALYST

NOBLE METAL CATALYZED REACTIONS

Noble Metal Catalyzed Reactions A method is disclosed for improving the performance of noble metal catalysts such as platinum in catalyzed chemical reactions where the reduction of oxygen is a rate limiting step. The catalytic activity of the catalyst and thus, the rate of reaction is increased by increasing the electron density of state at the Fermi level of the catalyst. This can be accomplished, for example, by alloying the noble metal catalyst with materials which increase the electron density of state.

SUPPORTED CATALYST FOR PURIFYING WASTE GASES AND PROCESS FOR PRODUCING SAID CATALYST

PROCESS FOR CONVERSION OF RESIDUE EMPLOYING MOVING BED TECHNOLOGY AND BUBBLING BED TECHNOLOGY

L'invention décrit un procédé de conversion de fractions lourdes carbonées ayant une température initiale d'ébullition d'au moins 300 °C en produits plus légers valorisables, ledit procédé comportant un passage de ladite charge dans une zone réactionnelle d'hydroraffinage comportant au moins un réacteur à lit mobile, et le passage d'au moins une partie de l'effluent issu de l'étape a) dans une zone réactionnelle d'hydroconversion comprenant au moins un réacteur triphasique, en présence d'hydrogène, ledit réacteur contenant au moins un catalyseur d'hydroconversion et fonctionnant en lit bouillonnant, à courant ascendant de liquide et de gaz et comportant au moins un moyen de soutirage dudit catalyseur hors dudit réacteur et au moins un moyen d'appoint de catalyseur frais dans ledit réacteur, dans des conditions permettant d'obtenir une charge liquide à teneur réduite en Carbone Conradson, en métaux, en soufre et en azote.

EXTRUDED RESID DEMETALLATION CATALYST

Catalyst supports, supported catalysts, and a method of preparing and using the catalysts for the demetallation of metal-containing heavy oil feedstocks are disclosed. The catalyst supports comprise alumina and 5 wt% or less titania. Catalyst prepared from the supports have at least 30 to 80 volume percent of its pore volume in pores having a diameter of between 200 and 500 angstroms. Catalysts in accordance with the invention exhibit improved catalytic activity and stability to remove metals from heavy feedstocks during a hydroconversion process. The catalysts also exhibit increased sulfur and MCR conversion.

КОМПОЗИЦІЯ КАТАЛІЗАТОРА ДЛЯ ОКИСЛЕННЯ ЕТАНУ І/АБО ЕТИЛЕНУ ДО ОЦТОВОЇ КИСЛОТИ, СПОСІБ ЇЇ ПРИГОТУВАННЯ ТА СПОСІБ ОДЕРЖАННЯ ОЦТОВОЇ КИСЛОТИ

Композиція оксидного каталізатора, яка містить елементи молібден, ванадій, ніобій та титан, та спосіб приготування цієї композиції каталізатора. Описаний також спосіб селективного окиснення етану і/або етилену до оцтової кислоти з використанням такої композиції каталізатора. Композиція каталізатора забезпечує високу селективність відносно оцтової кислоти при зниженій селективності відносно етилену.

МЕТАЛЛИЧЕСКИЕ ВОЛОКНА ДЛЯ КАТАЛИТИЧЕСКИХ НЕТКАНЫХ МАТЕРИАЛОВ

Металлическое волокно на основе одного или нескольких элементов из группы платины, палладия, родия, рутения или иридия с 0-30 вес.% одного или нескольких дополнительных легирующих элементов из группы никеля, кобальта, золота, рения, молибдена и вольфрама содержит согласно изобретению от 1 до 500 ч./млн бора или фосфора. Нетканый материал или сетка согласно изобретению, в частности, для получения оксида азота или для получения синильной кислоты состоит из таких волокон. Для получения волокон на основе благородных металлов с содержанием дополнительных легирующих металлов до 30 вес.% способом вытягивания волокон из расплава, температуру плавления металла перед вытягиванием волокон снижают по меньшей мере на 400°С путем добавления бора или фосфора, и из волокон бор или фосфор снова удаляют.

Method for the combustion of carbonaceous fuels utilizing high temperature stable catalysts

SUR UN SUPPORT OXYDE DE CHROME, MOLYBDENE OU TUNGSTENE

L'invention concerne de nouveaux catalyseurs contenant un ou plusieurs métaux nobles fixés sur un support en oxyde réfractaire, lequel est choisi entre les oxydes de tungstène, molybdène et chrome et consiste de préference en oxyde de tungstène Le métal ou les métaux nobles sont choisis de préférence dans le groupe VIII du tableau périodique des éléments et il s'agit notamment de platine et/ou d'iridium. L'invention concerne également la préparation de ces catalyseurs nouveaux. Les nouveaux catalyseurs de l'invention peuvent être utilisés comme catalyseurs de reformage; ils ont une grande stabilité thermique et leur activité d'hydrogénolyse est reduite comparativement à des catalyseurs connus au platine et/ou à l'iridium fixés sur un support.

Hydrocraquage of paraffinic hydrocarbons

Method of preparation of arylnaphtenes and alkyl-substituted arylnaphtenes

Catalyst for paraffin dehydrogenation - contg a noble metal and tungsten or molybdenum on a low-acidity alumina support

PROCESS AND APPARATUS FOR TREATING AMMONIA-CONTAINING WASTE WATER

A process for treating an ammonia- containing wastewater, which comprises the steps of contacting an ammonia- containing wastewater A with steam C (carrier gas) in a stripping column (7) to transfer NH3 to a gas phase from the ammonia-containing wastewater A; heating the resultant gas containing NH3 in a preheater (11)and then contacting the gas with a catalyst layer (13) to decompose NH3 into nitrogen and water; measuring the NOx (or N2O) content of the gas generated in the above decomposition step; and adjusting, based on the measured values of the NOx (or N 2O) content, one or more of (a) the feed rate of the ammonia- containing wastewater, (b) the NH3 content of the ammonia-containing wastewater and (c) the flow rate of the gas containing NH3 to be contacted with the catalyst layer [when the N2O content is measured, one or more of the flow rate of the carrier gas, the flow rate of an added gas such as air, and the flow rate of the part of the gas generated in the above decomposition ...

PREPARATION AND USE OF A CATALYST FOR PRODUCING ETHANOL COMPRISING A CRYSTALLINE SUPPORT MODIFIER

CATALYTIC MIXING OXIDES FOR CATALYTIC OXIDATION IN GASEOUS PHASE

fibras metalicas para nao tecidos acatlisadores

Método para preparar un filtro de tejido catalizado y un filtro de tejido catalizado.

...

LA PRESENTE INVENCIÓN SE REFIERE A UN SUBSTRATO DEL FILTRO DE TEJIDO CATALIZADO Y UN MÉTODO PARA PREPARAR EL SUBSTRATO QUE COMPRENDE LOS PASOS QUE CONSISTEN EN A) PROPORCIONAR UN SUBSTRATO DEL FILTRO DE TEJIDO ; B) PROPORCIONAR UN LÍQUIDO ACUOSO DE IMPREGNACIÓN QUE COMPRENDE UN HIDROSOL ACUOSO DE UNO O MÁS COMPUESTOS DE PRECURSOR DE METAL DE CATALIZADOR QUE SE DISPERSAN SOBRE NANOPARTÍCULAS DE UN PORTADOR DE METAL OXÍDICO, UN SURFACTANTE Y UN AGENTE DE DISPERSIÓN SELECCIONADO DEL GRUPO DE AMINAS PRIMARIAS ; C) IMPREGNAR EL SUBSTRATO DEL FILTRO DE TEJIDO CON EL LÍQUIDO DE IMPREGNACIÓN; Y D) SECAR Y ACTIVAR TÉRMICAMENTE EL SUBSTRATO DEL FILTRO DE TEJIDO IMPREGNADO A UNA TEMPERATURA INFERIOR A 300 °C PARA CONVERTIR UNO O MÁS DE LOS COMPUESTOS DE METAL DEL PRECURSOR DE CATALIZADOR A SU FORMA CATALÍTICAMENTE ACTIVA.

SETT ATT FRAMSTELLA EN HYDRORAFFINERINGSKATALYSATOR

PROCESSES FOR MAKING CATALYSTS WITH OXALATE PRECURSORS

The present invention relates to processes for making catalysts involving impregnation of a support with a solution comprising a metal oxalate and an acid, and a solution of precious metal oxalate. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises a precious metal and one or more active metals on a support, optionally a modified support.

CATALYST CONSISTING OF PLATINUM SUPPORTED ON CHEMICALLY PROMOTED MAGNESIUM OXIDE AND CERIUM DIOXIDE TOWARDS H2-SCR

This invention relates to a novel catalyst having excellent activity and selectivity for reducing nitric oxides (NO/NO2) to nitrogen gas (N2) with hydrogen (H2) being used as a reducing agent under strongly oxidizing conditions (e.g., 2-10 vol % O2) (H2-SCR) in the 100-400°C range, but in particular to the 1 10-180°C low-temperature range. The inventive catalyst comprises of platinum and palladium nanoparticles of appropriate morphology and surface structure which are in contact with solid phases of a promoted with e.g. vanadium oxide (e.g. V2O5) mixed MgO and CeO2 medium.

Catalyst for purification of exhaust gases and process for purification of exhaust gases

A catalyst for purification of CO-containing exhaust gases, includes a metal oxide as a support and a catalytic component A being supported thereon as a catalytic component and including a specific noble metal element; wherein the support includes a titanium-containing oxide as the metal oxide and is a monolithically molded type porous honeycomb support obtained by a process including the steps of extrusion-molding and then calcining materials of the support; and wherein the catalytic component A is distributed with a quantitatively great inclination toward surfaces of the catalyst. A process for purification of exhaust gases to remove CO therefrom, includes the step of bringing the exhaust gases into contact with the catalyst.

КАТАЛИТИЧЕСКАЯ КОМПОЗИЦИЯ И СПОСОБ РЕАКТИВАЦИИ, ИСПОЛЬЗУЕМЫЕ ДЛЯ ДЕГИДРИРОВАНИЯ АЛКАНОВ

Изобретение относится к улучшенным катализаторам дегидрирования алканов и к способам, которые включают в себя реактивацию частично отработанных катализаторов. Описана каталитическая композиция для дегидрирования алканов, содержащая: металл группы IIIA, выбранный из галлия, индия, таллия и их комбинаций; благородный металл группы VIII, выбранный из платины, палладия, родия, иридия, рутения, осмия и их комбинаций; по меньшей мере, одну добавку, выбранную из железа, хрома, ванадия и их комбинаций; и необязательный металлический промотор, выбранный из натрия, калия, рубидия, цезия, магния, кальция, стронция, бария и их комбинаций; на носителе катализатора, выбранном из кремнезема, глинозема, алюмосиликатных композитов, модифицированного редкими землями глинозема и их комбинаций. Раскрыт также способ дегидрирования алкана, включающий приведение указанной каталитической композиции в контакт с алканом. При этом способ, по меньшей мере, частичной реактивации, по меньшей мере, частично дезактивированной ...

МОДИФИЦИРОВАННЫЙ PT/RU КАТАЛИЗАТОР ДЛЯ РАСКРЫТИЯ КОЛЬЦА И СПОСОБ ИСПОЛЬЗОВАНИЯ ЭТОГО КАТАЛИЗАТОРА

Изобретение относится к катализаторам для раскрытия нафтеновых колец. Описан катализатор для раскрытия нафтеновых колец, содержащий платиновый компонент, рутениевый компонент и модифицирующий компонент, все диспергированные на подложке из тугоплавкого неорганического оксида, и характеризующийся тем, что, по меньшей мере, 50% платинового и рутениевого компонентов присутствуют в виде частиц, где на поверхности частиц имеется более высокая концентрация рутения, чем в центре частиц. Также описан способ получения ациклических парафинов из циклических парафинов, включающий контактирование потока сырья, содержащего циклические парафины, с катализатором, содержащим платиновый компонент, рутениевый компонент и модифицирующий компонент, все диспергированные на подложке из тугоплавкого неорганического оксида, в условиях раскрытия кольца для превращения, по меньшей мере, части циклических парафинов в ациклические парафины, при этом катализатор характеризуется тем, что, по меньшей мере, 50% платинового ...

СМЕШАННЫЕ ОКСИДНЫЕ КАТАЛИЗАТОРЫ ДЛЯ КАТАЛИТИЧЕСКОГО ОКИСЛЕНИЯ В ГАЗОВОЙ ФАЗЕ

Настоящее изобретение относится к способу получения альдегидов и при определенных условиях кислот. Описан способ получения альдегидов и при определенных условиях кислот путем каталитического окисления алканов или смесей алканов воздухом либо кислородом при необходимости в присутствии инертных газов, водяного пара или отходящих газов реакции при повышенных температурах с использованием смешанного оксидного катализатора. Технический эффект - повышение выхода альдегидов, прежде всего акролеина или же смеси акролеина и акриловой кислоты. 3 з.п. ф-лы, 11 пр.

СПОСОБ КАТАЛИТИЧЕСКОГО ПРЕВРАЩЕНИЯ УГЛЕВОДОРОДОВ В АРОМАТИЧЕСКИЕ СОЕДИНЕНИЯ С ИСПОЛЬЗОВАНИЕМ КАТАЛИЗАТОРА, СОДЕРЖАЩЕГО ЩЕЛОЧНЫЕ И ЩЕЛОЧНОЗЕМЕЛЬНЫЕ МЕТАЛЛЫ

Изобретение относится к способу каталитического превращения углеводородов в ароматические соединения, который может применяться для риформинга бензинов и производства ароматических соединений. Сущность изобретения: перерабатываемое сырье, содержащее парафиновые, нафтеновые и ароматические углеводороды, имеющие 5-12 атомов углерода, контактирует с катализатором, который содержит матрицу, состоящую из гамма-модификации оксида алюминия или смеси гамма- и эта-модификаций оксида алюминия, и по меньшей мере один легирующий металл, выбранный из группы, состоящей из щелочных и щелочноземельных металлов, по меньшей мере один галоген, выбранный из группы, состоящей из фтора, хлора, брома и йода, по меньшей мере один благородный металл, выбранный из группы платины, и по меньшей мере один промотирующий металл, выбранный из группы, состоящей из олова, германия, индия, галлия, таллия, сурьмы, свинца, рения, марганца, хрома, молибдена и вольфрама, причем этот катализатор подвергают гидротермальной обработке ...

ЗОНИРОВАННЫЙ КАТАЛИЗАТОР НА МОНОЛИТНОЙ ПОДЛОЖКЕ

КОМПОЗИЦИЯ ЛЕГИРОВАННОГО ТВЕРДОГО КИСЛОТНОГО КАТАЛИЗАТОРА, СПОСОБ КОНВЕРСИИ С ЕГО ИСПОЛЬЗОВАНИЕМ И СООТВЕТСТВУЮЩИЕ ПРОДУКТЫ КОНВЕРСИИ

... 1. Композиция легированного твердого кислотного катализатора, содержащая ! а) по меньшей мере один твердый кислотный катализатор, ! b) по меньшей мере один металлический промотор твердого кислотного катализатора (а), !c) по меньшей мере одну основную легирующую добавку твердого кислотного катализатора (а), ! d) по меньшей мере один благородный металл и, необязательно, ! e) по меньшей мере одно тугоплавкое связующее. ! 2. Композиция легированного твердого кислотного катализатора по п.1, в которой по меньшей мере один твердый кислотный катализатор выбирают из группы, состоящей из оксидов металлов IVB группы и/или VIB группы, модифицированных оксидов металла IVB группы и/или VIB группы, сульфатированных оксидов металлов, кислотных цеолитов, хлорированного оксида алюминия и их сочетаний. ! 3. Композиция легированного твердого кислотного катализатора по п.2, в которой оксид металла IVB группы и/или VIB группы представляет собой по меньшей мере один оксид элемента, выбираемого из группы, состоящей ...

СПОСОБЫ ПРОИЗВОДСТВА 1,1,1,2,3-ПЕНТАФТОРПРОПИЛЕНА И СПОСОБЫ ПРОИЗВОДСТВА 1,1,1,2,3-ПЕНТАФТОРПРОПАНА

Настоящее изобретение обеспечивает способы производства 1,1,1,2,3-пентафторпропилена, отличающиеся тем, что реакция удаления HF происходит при взаимодействии 1,1,1,2,3,3-гексафторпропана в газообразном состоянии с активным углем или с активным углем с добавкой соли металла. 1,1,1,2,3-пентафторпропилен согласно данному изобретению можно получить из доступного 1,1,1,2,3,3-гексафторпропана эффективными в смысле затрат промышленными способами с высокими выходами. Настоящее изобретение обеспечивает также способы производства 1,1,1,2,3-пентафторпропана, отличающиеся тем, что включают восстановление 1,1,1,2,3-пентафторпропилена водородом в присутствии катализатора гидрирования, состоящего из палладия с добавкой одного или более металлов, выбранных из серебра, меди, золота, теллура, цинка, хрома, молибдена и таллия, или в присутствии родиевого катализатора. Требуемый продукт согласно этим изобретениям можно получить при высокой реактивности и высокой селективности.

ИЗГОТОВЛЕНИЕ И ПРИМЕНЕНИЕ КАТАЛИЗАТОРА ДЛЯ ПОЛУЧЕНИЯ ЭТАНОЛА, СОДЕРЖАЩЕГО КРИСТАЛЛИЧЕСКИЙ МОДИФИКАТОР НОСИТЕЛЯ

... 1. Катализатор, содержащий первый металл, кремнийсодержащий носитель и по меньшей мере один метасиликатный модификатор носителя, в котором по меньшей мере 0,5 масс.% метасиликатного модификатора носителя, согласно данным рентгеновской дифракции, находятся в кристаллической фазе.2. Катализатор по п.1, в котором от 0,5 масс.% до 5 масс.% метасиликатного модификатора носителя находятся в кристаллической фазе.3. Катализатор по п.1, в котором по меньшей мере 1 масс.% метасиликатного модификатора носителя находится в кристаллической фазе.4. Катализатор по п.1, в котором по меньшей мере 5 масс.% метасиликатного модификатора носителя находятся в кристаллической фазе.5. Катализатор по п.1, в котором по меньшей мере 10 масс.% метасиликатного модификатора носителя находятся в кристаллической фазе.6. Катализатор по п.1, в котором по меньшей мере 25 масс.% метасиликатного модификатора носителя находятся в кристаллической фазе.7. Катализатор по п.1, в котором по меньшей мере 50 масс.% метасиликатного ...

СМЕШАННЫЕ ОКСИДНЫЕ КАТАЛИЗАТОРЫ ДЛЯ КАТАЛИТИЧЕСКОГО ОКИСЛЕНИЯ В ГАЗОВОЙ ФАЗЕ

... 1. Смешанные оксидные катализаторы общей формулы ! , !в которой ! А обозначает висмут, ! В обозначает по меньшей мере один из элементов из группы, включающей никель и кобальт, ! С обозначает по меньшей мере один из элементов из группы, включающей Fe, Се, Мn, Сr и V, ! D обозначает по меньшей мере один из элементов из группы, включающей W и Р, ! Е обозначает по меньшей мере один из элементов из группы, включающей Li, К, Na, Rb, Cs, Mg, Ca, Ba и Sr, ! F обозначает по меньшей мере один из элементов из группы, включающей Zn, Nb, Se, Те, Sm, Gd, La, Y, Pd, Pt, Ru, Ag и Au, ! G обозначает по меньшей мере один из элементов из группы, включающей Si, Al, Ti и Zr, a ! а обозначает число от 0 до 1, ! b обозначает число от 0 до 1, ! с обозначает число от 0,001 до 1, ! d обозначает число от 0,01 до 2, ! е обозначает число от 0 до 1, ! f обозначает число от 0,01 до 1,5, ! g обозначает число от 0 до 800 и ! x обозначает число, определяемое валентностью и содержанием элементов, отличных от кислорода. !

СПОСОБ ПОЛУЧЕНИЯ СРЕДНИХ ДИСТИЛЛЯТОРОВ ГИДРОИЗОМЕРИЗАЦИЕЙ И ГИДРОКРЕКИНГОМ ЗАГРУЗОК, ПОЛУЧЕННЫХ ПО СПОСОБУ ФИШЕРА-ТРОПША

... 1. Способ получения средних дистиллятов из парафиновой загрузки, полученной синтезом Фишера-Тропша, в котором используют катализатор гидрокрекинга/гидроизомеризации, включающий по меньшей мере, один элемент гидрогенизации/дегидрогенизации, выбранный в группе, образованной благородными металлами VIII группы периодической системы, нецеолитовую подложку на основе диоксида кремния - оксида алюминия, содержащую более 5 мас.% и менее или равном 95 мас.% диоксида кремния (SiO2), средний диаметр пор, измеренный ртутной порометрией, в диапазоне от 20 до 140 Å, общий объем пор, измеренный ртутной порометрией, в диапазоне от 0,1 до 0,6 мл/г, общий объем пор, измеренный азотной порометрией, в диапазоне от 0,1 до 0,6 мл/г, удельную поверхность ВЕТ в диапазоне от 100 до 550 м2/г, объем пор, измеренный ртутной порометрией, для пор диаметром более 140 Å менее 0,1 мл/г, объем пор, измеренный ртутной порометрией, для пор диаметром более 160 Å менее 0,1 мл/г, объем пор, измеренный ртутной порометрией, для ...

КОМПОЗИЦИЯ КАТАЛИЗАТОРА И СПОСОБ СЕЛЕКТИВНОГО ОКИСЛЕНИЯ ЭТАНА И/ИЛИ ЭТИЛЕНА ДО УКСУСНОЙ КИСЛОТЫ

... 1. Композиция катализатора для окисления этана и/или этилена до уксусной кислоты, содержащая в сочетании с кислородом элементы: молибден, ванадий, ниобий и титан в соответствии с эмпирической формулой в которой Y обозначает один или несколько элементов, выбранных из группы, включающей Cr, Mn, Та, В, Al, Ga, In, Pt, Zn, Cd, Bi, Ce, Co, Rh, Ir, Cu, Ag, Fe, Ru, Os, K, Rb, Cs, Mg, Ca, Sr, Ba, Zr, Hf, Ni, P, Pb, Sb, Si, Sn, Tl, U, Re, Те, La, Au и Pd; a, b, c, d, e и f обозначают такие грамм-атомные соотношения элементов, при которых 0 Подробнее

Способ приготовления катализатора для гидрообессеривания

Katalysator für die Erzeugung von Wasserstoff

Ammoniakoxidationskatalysator

Bereitgestellt wird ein Katalysatorartikel zur Behandlung eines Emissionsgases, umfassend (a) eine Edelmetallkatalysatorschicht, umfassend ein oder mehrere Edelmetalle, die auf einem ersten Träger aus feuerfestem Metalloxid angeordnet sind; und (b) eine Vanadiumkatalysatorschicht, umfassend Vanadium, das auf einem zweiten Träger aus feuerfestem Metalloxid, der aus Aluminiumoxid, Titandioxid, Zirconiumdioxid, Ceroxid, Siliciumdioxid und Mischungen davon ausgewählt ist, vorfixiert ist, wobei die erste Katalysatorschicht in physikalischem Kontakt mit der zweiten Katalysatorschicht steht. Bereitgestellt wird auch ein Verfahren zur Herstellung eines derartigen Katalysatorartikels, ein Verfahren zur Behandlung von Gasemissionen unter Verwendung eines derartigen Artikels und ein Emissionsgasbehandlungsystem mit einem derartigen Artikel.

Ammonia oxidation catalyst

Zoned catalysed substrate monolith

CONTACT MASS CONTAINING HEATER TO THE HETEROGENEOUS CATALYSIS

Metal fibres for catalyst nonwovens

CATALYST COMPOSITION AND PROCESS FOR THE SELECTIVE OXIDATION OF ETHANE AND/OR ETHYLENE TO ACETIC ACID

An oxide catalyst composition comprising the elements molybdenum, vanadium, niobium and titanium and a process for making the catalyst composition. A process for the selective oxidation of ethane and/or ethylene to acetic acid using the catalyst composition. The catalyst composition provides high selectivity to acetic acid with reduced selectivity to ethylene.

BIMETALLIC CATALYSTS FOR THE REACTION OF CARBON MONOXIDE AND HYDROGEN

NOVEL BIMETALLIC CATALYSTS FOR THE REACTION OF CARBON MONOXIDE AND HYDROGEN For the reaction of CO and H2 to produce hydrocarbons and alcohols, catalysts prepared by depositing carbonyls of molybdenum or tungsten and rhodium or ruthenium on alumina support and decomposing and oxidizing the carbonyls to oxides of the metals on the support.

PLATINUM-ALKALI/ALKALINE-EARTH CATALYST FORMULATIONS FOR HYDROGEN GENERATION

A method and catalysts and fuel processing apparatus for producing a hydrogen- rich gas, such as a hydrogen-rich syngas are disclosed. According to the method a CO-containing gas, such as a syngas, contacts a water gas shift catalyst in the presence of water, preferably at a temperature of less than about 450~C, to produce a hydrogen-rich gas, such as a hydrogen-rich syngas. Also disclosed is a water gas shift catalyst comprising: a) Pt, its oxides or mixtures thereof; b) at least one of Li, Na, K, Rb, Cs, Mg, Ca, Sr, Ba, their oxides and mixtures thereof; and c) at least one of Sc, Y, Ti, Zr, V, Nb, Ta, Cr, Mo, W, Mn, Fe, Co, Ir, Ni, Pd, La, Ce, Pr, Nd, Sm, Eu, their oxides and mixtures thereof. The WGS catalyst may be supported on a carrier, such as any one member or a combination of alumina, zirconia, titania, ceria, magnesia, lanthania, niobia, yttria and iron oxide. Fuel processors containing such water gas shift catalysts are also disclosed.

Methods for preparing ethylene glycol from polyhydroxy compounds

This invention provides methods for producing ethylene glycol from polyhydroxy compounds such as cellulose, starch, hemicellulose, glucose, sucrose, fructose, fructan, xylose and soluble xylooligosaccharides. The methods uses polyhydroxy compounds as the reactant, a composite catalyst having active components comprising one or more transition metals of Groups 8, 9, or 10, including iron, cobalt, nickel, ruthenium, rhodium, palladium, iridium, and platinum, as well as tungsten oxide, tungsten sulfide, tungsten hydroxide, tungsten chloride, tungsten bronze oxide, tungsten acid, tungstate, metatungstate acid, metatungstate, paratungstate acid, paratungstate, peroxotungstic acid, pertungstate, heteropoly acid containing tungsten. Reacting at a temperature of 120-300° C. and a hydrogen pressure of 1-13 MPa under hydrothermal conditions to accomplish one-step catalytic conversion. It realizes efficient, highly selective, high yield preparation of ethylene glycol and propylene glycol from polyhydroxy compounds. The advantage of processes disclosed in this invention include renewable raw material and high atom economy. At the same time, compared with other technologies that converts biomass raw materials into polyols, methods disclosed herein enjoy advantages including simple reaction process, high yield of targeted products, as well as easy preparation and low cost for the catalysts.

Deoxygenation of fatty acids for preparation of hydrocarbons

Embodiments of methods for making renewable diesel by deoxygenating (decarboxylating/decarbonylating/dehydrating) fatty acids to produce hydrocarbons are disclosed. Fatty acids are exposed to a catalyst selected from a) Pt and MO 3 on ZrO 2 (M is W, Mo, or a combination thereof), or b) Pt/Ge or Pt/Sn on carbon, and the catalyst decarboxylates at least 10% of the fatty acids. In particular embodiments, the catalyst consists essentially of 0.7 wt % Pt and 12 wt % WO 3 , relative to a mass of catalyst, or the catalyst consists essentially of a) 5 wt % Pt and b) 0.5 wt % Ge or 0.5 wt % Sn, relative to a mass of catalyst. Deoxygenation is performed without added hydrogen and at less than 100 psi. Disclosed embodiments of the catalysts deoxygenate at least 10% of fatty acids in a fatty acid feed, and remain capable of deoxygenating fatty acids for at least 200 minutes to more than 350 hours.

Process for Vapor Phase Hydrogenation

A process for selective formation of ethanol from acetic acid includes contacting a feed stream containing acetic acid and hydrogen at an elevated temperature with catalyst comprising platinum and tin on a high surface area silica promoted with calcium metasilicate. Selectivities to ethanol of over 85% are achieved at 280° C. with catalyst life in the hundreds of hours. 1108-. (canceled)109. A process for the production of ethanol by reduction of acetic acid comprising passing a gaseous stream comprising hydrogen and acetic acid in the vapor phase in a molar ratio of hydrogen to acetic acid of at least about 4:1 at a temperature of between about 225° C. and 300° C. over a particulate hydrogenation catalyst comprising a silicaceous support having dispersed thereon a platinum group metal selected from the group consisting of platinum , palladium and mixtures thereof , with a promoter metal comprising cobalt , the silicaceous support having a surface area of at least 175 m/g and being chosen from the group consisting of silica , calcium metasilicate and calcium metasilicate promoted silica having calcium metasilicate disposed on the surface thereof , the surface of the silicaceous support being essentially free of Bronsted acid sites due to alumina unbalanced by calcium.110. The process of claim 109 , wherein the catalyst consists of silicaceous support having dispersed thereon a platinum group metal and cobalt.111. The process of claim 109 , wherein the silicaceous support is silica.112. The process of claim 109 , wherein the silicaceous support is calcium metasilicate.113. The process of claim 109 , wherein the silicaceous support has a surface area of at least 200 m/g.114. The process of claim 109 , wherein the platinum group metal is present from 0.5 to 5 wt. % claim 109 , based on the total weight of the catalyst.115. The process of claim 109 , wherein a weight ratio of cobalt to platinum group metal is from 20:1 to 3:1.116. A process for the production of ethanol ...

Novel formulation of hexa-aluminates for reforming fuels

The invention is directed to a catalyst and a method for making a reforming catalyst for the production of hydrogen from organic compounds that overcomes the problems of catalyst poisoning and deactivation by coking and high temperature sintering, yet provides excellent durability and a long working life in process use. An embodiment is the formation of a unique four-metal ion hexa-aluminate of the formula M1 a M2 b M3 c M4 d Al 11 O 19-α . M1 and M2 are selected from the group consisting of beryllium, magnesium, calcium, strontium, barium, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, and gadolinium. M3 and M4 are selected from the group consisting of chromium, manganese, iron, cobalt, nickel, copper, molybdenum, ruthenium, rhodium, palladium, tungsten, rhenium, osmium, iridium, platinum, wherein 0.010≦a+b+c+d≦2.0. Also, 1≦α≦1. Further, M1≠M2 and M3≠M4.

METHOD FOR PRODUCING DISPERSION OF NOBLE METAL-SUPPORTED PHOTOCATALYST PARTICLES, DISPERSION OF NOBLE METAL-SUPPORTED PHOTOCATALYST PARTICLES, HYDROPHILIZING AGENT AND PHOTOCATALYTIC FUNCTIONAL PRODUCT

Dispersion of noble metal-supported photocatalyst particles, which exhibits high photocatalytic activity, and also has stable dispersibility that enables prevention of precipitation of photocatalyst particles in a dispersion medium; a method for producing the same; a hydrophilizing agent; and a photocatalytic functional product. 1. A method for producing a dispersion of noble metal-supported photocatalyst particles , the noble metal-supported photocatalyst particles including a noble metal supported on a surface of photocatalyst particles being dispersed in a dispersion medium , the method comprising the steps of:1) adjusting the pH of a raw dispersion in a range from 2.8 to 5.5, the photocatalyst particles being dispersed in the dispersion medium of the raw dispersion, a precursor of the noble metal being dissolved in the raw dispersion, and also adjusting the amount of oxygen dissolved in the raw dispersion to 1.0 mg/L or less;2) irradiating the raw dispersion with light having energy larger than or equal to that of a bandgap of the photocatalyst particles; and3) adding a sacrificial agent to the raw dispersion after the step 2), and also irradiating the raw dispersion with light having energy larger than or equal to that of a bandgap of the photocatalyst particles, thereby supporting the noble metal on a surface of the photocatalyst particles.2. The method for producing a dispersion of noble metal-supported photocatalyst particles according to claim 1 , wherein the noble metal is at least one noble metal selected from Cu claim 1 , Pt claim 1 , Au claim 1 , Pd claim 1 , Ag claim 1 , Ru claim 1 , Ir and Rh.3. The method for producing a dispersion of noble metal-supported photocatalyst particles according to claim 1 , wherein the photocatalyst particles are tungsten oxide particles. This application is a divisional of pending U.S. application Ser. No. 13/512,849 filed Aug. 10, 2012, which is a National Stage of International Application No. PCT/JP2010/071351 filed ...

Process for hydrocracking a hydrocarbon feed in the presence of a sulphide catalyst prepared using a cyclic oligosaccharide

Hydrocracking a hydrocarbon feed in the presence of a catalyst comprising an acidic support and an active phase formed from at least one metal from group VIII and at least one metal from group VIB, said catalyst being prepared using a process comprising, in succession: contacting a pre-catalyst comprising said metal from group VIII, said metal from group VIB and said acidic support with a cyclic oligosaccharide of at least 6α-(1,4)-bonded glucopyranose subunits; contacting the acidic support with a solution containing a precursor of metal from group VIII, a precursor of said metal from group VIB and a cyclic oligosaccharide of at least 6α-(1,4)-bonded glucopyranose subunits; and contacting acidic support with a cyclic oligosaccharide of at least 6α-(1,4)-bonded glucopyranose subunits followed by a second contacting acidic solid with a precursor of metal from group VIII and a precursor of metal from group VIB; drying; heat treatment; sulphurization.

Esterifying an ethanol and acetic acid mixture to produce an ester feed for hydrogenolysis

Disclosed herein are processes for alcohol production by hydrogenating acetic acid to obtain a mixture of ethanol and acetic acid, esterifying the mixture to produce an esterification product and reducing the esterification product. The mixture may provide a sufficient amount of ethanol and acetic acid for esterification and reduces the need for additional acetic acid and/or ethanol. This may reduce the recycle of ethanol in the hydrogenolysis process and improve ethanol productivity.

Processes For Making Catalysts With Acidic Precursors

The present invention relates to catalysts, to processes for making catalysts with acidic precursors and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises a precious metal and one or more active metals on a support, optionally a modified support.

HYDROGENATION CATALYSTS WITH ACIDIC SITES

The present invention relates to catalysts and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises acidic sites and two or more metals. The catalyst has acidic sites on the surface and the balance favors Lewis acid sites. 1. A hydrogenation catalyst comprising a precious metal and at least one active metal on a modified silica support , wherein the catalyst has at least 70% Lewis acid sites based on the total number of acid sites as measured by Fourier transform infrared spectroscopy of chemisorbed pyridine , and wherein the modified silica support comprises: (i) a support material; and (ii) a support modifier comprising a metal selected from the group consisting of tungsten , molybdenum , vanadium , niobium , and tantalum.2. The catalyst of claim 1 , wherein the catalyst has at least 80% Lewis acid sites claim 1 , based on the total number of acid sites claim 1 , as measured by Fourier transform infrared spectroscopy of chemisorbed pyridine.3. The catalyst of claim 1 , wherein the modified silica support comprises cobalt tungstate.4. The catalyst of claim 1 , wherein the precious metal is selected from the group consisting of rhodium claim 1 , rhenium claim 1 , ruthenium claim 1 , platinum claim 1 , palladium claim 1 , osmium claim 1 , iridium and gold.5. The catalyst of claim 1 , wherein the at least one active metal is selected from the group consisting of copper claim 1 , iron claim 1 , vanadium claim 1 , nickel claim 1 , titanium claim 1 , zinc claim 1 , chromium claim 1 , molybdenum claim 1 , tungsten claim 1 , tin claim 1 , lanthanum claim 1 , cerium claim 1 , cobalt claim 1 , manganese and combinations thereof.6. The catalyst of claim 1 , wherein the catalyst is prepared by:(a) impregnating a support material with a first solution to form a first impregnated support, wherein the first solution comprises a precursor to the support modifier metal selected from the group ...

Process for hydrotreating a hydrocarbon cut with a boiling point of more than 250°c in the presence of a sulphide catalyst prepared using a cyclic oligosaccharide

Preparation of a catalyst having at least one metal from group VIII, at least one metal from group VIB and at least one support; in succession: i) one of i1) contacting a pre-catalyst with metal from group VIII, metal from group VIB and support with a cyclic oligosaccharide naming at least 6 α-(1,4)-bonded glucopyranose subunits; i2) contacting support with a solution containing a precursor of metal from group VIII, a precursor of said metal from group VIB and a cyclic oligosaccharide composed of at least 6 α-(1,4)-bonded glucopyranose subunits; or i3) contacting support with a cyclic oligosaccharide composed of at least 6 α-(1,4)-bonded glucopyranose subunits followed by contacting solid derived therefrom with a precursor of metal from group VIII and a precursor of metal from group VIB.

Ammonia oxidation catalyst having low n2o by-product formation

The present invention relates to a catalytic composition comprising a noble metal on an acidic tungsten-containing mixed oxide, a method for producing the catalytic composition and the use of the catalytic composition as oxidation catalyst. The invention further relates to a catalyst shaped body, which has the catalytic composition on a support, a washcoat containing the catalytic composition according to the invention and the use of the washcoat to produce a coated catalyst shaped body.

Bifunctional Catalyst for Decomposition and Oxidation of Nitrogen Monoxide, Composite Catalyst Including the Same for Apparatus to Decrease Exhaust Gas, and Method for Preparation Thereof

Disclosed are a bifunctional catalyst for simultaneously removing nitrogen oxide and particulate matters, capable of decomposing nitrogen monoxide and generating nitrogen dioxide through oxidation of nitrogen monoxide, a composite catalyst including the catalyst for simultaneously removing nitrogen oxide and particulate matters used for an apparatus to decrease exhaust gas of diesel vehicles, and a method for preparation thereof. The catalyst and the composite catalyst can be used in a device for reducing exhaust gas contaminants mounted on a diesel vehicle and an exhaust gas purification system comprising the device. 1. A method for preparation of a bifunctional catalyst for simultaneously removing nitrogen oxide and particulate matters (PMs) to enable nitrogen monoxide (NO) decomposition and nitrogen dioxide (NO) generation through NO oxidation , the method comprising:(a) loading a co-catalyst based on at least one metal selected from a group consisting of tungsten (W), molybdenum (Mo), cobalt (Co), manganese (Mn), copper (Cu) and iron (Fe) or metal oxides thereof on top of a support containing oxides of at least one element selected from a group consisting of titanium (Ti), zirconium (Zr), aluminum (Al) and cerium (Ce);(b) loading an active metal based on at least one metal selected from a group consisting of platinum (Pt), palladium (Pd), rhodium (Rh), ruthenium (Ru) and silver (Ag) or metal oxides thereof on top of the co-catalyst; and(c) drying, calcining and conducting reduction of the loaded materials after loading the co-catalyst and the active metal.2. The method for preparation of a bifunctional catalyst according to claim 1 , wherein the co-catalyst in step (a) is loaded in an amount of 0.1 to 20 wt. % relative to a total weight of the support claim 1 , and the active metal in step (b) is loaded in an amount of 0.1 to 10 wt. % relative to a total weight of the support.3. The method for preparation of a bifunctional catalyst according to claim 1 , wherein ...

CATALYST, PROCESS FOR PRODUCING THE CATALYST, USE OF THE CATALYST

A catalyst especially for oxidation of exhaust gas constituents, for example nitrogen oxide, preferably nitrogen monoxide, consists of a particulate support material composed of titanium-containing nanoparticles, preferably titanium oxide nanoparticles, especially titanium dioxide nanoparticles coated with platinum, especially platinum particles. A process for producing such a catalyst. 1. A catalyst for oxidation of exhaust gas constituents including nitrogen oxide , the catalyst comprising:a particulate support material composed of titanium-containing nanoparticles; anda platinum coating, wherein the support material is coated with the platinum coating.2. The catalyst according to claim 1 , wherein the catalyst oxidizes nitrogen monoxide claim 1 , the particulate support material is composed of titanium dioxide nanoparticles claim 1 , and the platinum coating is composed of platinum particles.3. The catalyst according to claim 1 , further comprising bridges arranged between and joining at least one of a plurality of platinum particles of the platinum layer and to plurality of support material particles of the support material claim 1 , the bridges contain metal oxide and at least one of silicon and tungsten.4. The catalyst according to claim 1 , wherein the platinum coating is composed of platinum nanoparticles.5. The catalyst according to claim 1 , wherein the catalyst further includes palladium.6. The catalyst according to claim 1 , wherein the catalyst has a platinum concentration in the range of 0.5 mg to 150 mg per 1 gram of catalyst weight.7. The catalyst according to claim 1 , wherein the catalyst has a platinum concentration in the range of 1 mg to 100 mg per 1 gram of catalyst weight.8. The catalyst according to claim 3 , wherein the catalyst has one of:a titanium:silicon ratio of 20:1 to 2:1; anda titanium:tungsten ratio of 80:1 to 8:1.9. A process for producing a catalyst for oxidation of exhaust gas constituents including nitrogen oxide claim 3 , ...

AMMONIA OXIDATION CATALYST, EXHAUST GAS PURIFICATION DEVICE USING SAME, AND EXHAUST GAS PURIFICATION METHOD

Ammonia oxidation catalyst being superior in heat resistance and capable of suppressing by-production of NO and leakage of ammonia. The ammonia oxidation catalyst (AMOX) removes surplus ammonia, in selectively reducing nitrogen oxides by adding urea or ammonia and using a selective catalytic reduction (SCR) catalyst, into exhaust gas, wherein the ammonia oxidation catalyst is made by coating at least two catalyst layers having a catalyst layer (lower layer) including a catalyst supported a noble metal element on a composite oxide (A) having titania and silica as main components, and a catalyst layer (upper layer) including a composite oxide (C) consisting of tungsten oxide, ceria, and zirconia, at the surface of an integral structure-type substrate, wherein a composition of the composite oxide (C) is tungsten oxide: 1 to 50% by weight, ceria: 1 to 60% by weight, and zirconia: 30 to 90% by weight. 1. An ammonia oxidation catalyst (AMOX) for oxidizing and removing surplus ammonia , in selectively reducing nitrogen oxides by adding urea or ammonia as a reducing agent of the nitrogen oxides and using a selective catalytic reduction (SCR) catalyst , into exhaust gas discharged from a lean-burn engine ,comprising by coating at least two catalyst layers having a catalyst layer (lower layer) comprising a catalyst supported a noble metal element on an inorganic base material of a composite oxide (A) having titania and silica as main components, and a catalyst layer (upper layer) comprising a composite oxide (C) consisting of tungsten oxide, ceria, and zirconia, at the surface of an integral structure-type substrate, characterized in that a composition of the composite oxide (C) is tungsten oxide: 1 to 50% by weight, ceria: 1 to 60% by weight, and zirconia: 30 to 90% by weight.2. The ammonia oxidation catalyst according to claim 1 , characterized in that the composition of the composite oxide (A) is titania: 60 to 99% by weight and silica: 1 to 40% by weight.3. The ammonia ...

Process for pre-treatment of a catalyst support and catalyst prepared therefrom

Methods of forming noble metal catalysts, noble metal catalysts formed therefrom and process for using noble metal catalysts are described herein. The methods generally include contacting a support material with a pre-treatment agent including a dilute basic solution of an alkali or alkaline earth metal to form a contacted support; drying the contacted support to form a pre-treated support; and impregnating the pre-treated support with at least one noble metal to form the noble metal catalyst.

VISIBLE LIGHT-ACTIVATED PHOTOCATALYTIC COATING COMPOSITION AND AIR PURIFICATION FILTER

Disclosed is a visible light-activated photocatalytic coating composition comprising a visible light active photocatalytic material and an aqueous solvent. 1. An air purification filter comprising:a porous substrate comprising activated carbon; anda photocatalytic coating layer formed from a visible light-activated photocatalytic coating composition on the porous substrate comprising activated carbon,wherein an amount of the activated carbon ranges from 20% to 80% by weight based on an amount of the porous substrate comprising activated carbon, and the visible light-activated photocatalytic coating composition comprises a visible light active photocatalytic material,wherein the visible light active photocatalytic material comprises a porous first metal oxide; and a second metal particle supported on the porous first metal oxide, a second metal oxide particle, or both,{'sub': '3', 'wherein the first metal oxide is a tungsten oxide (WO) and a second metal of the second metal particle and the second metal oxide particle is platinum (Pt),'}the visible light active photocatalytic material is formed into particles,the visible light-activated photocatalytic coating composition does not comprise an alcohol and a binder material, andthe porous substrate comprising activated carbon is formed by attaching the activated carbon to or impregnating the activated carbon into a material comprising a woven or nonwoven fabric made of an organic fiber or inorganic fiber.2. The air purification filter of claim 1 , wherein the photocatalytic coating layer is coated on the porous substrate and the activated carbon by immersing the porous substrate and the activated carbon in the visible light-activated photocatalytic coating composition.3. The air purification filter of claim 1 , wherein an amount of the visible light active photocatalytic material ranges from 4% to 10% by weight based on an amount of the visible light-activated photocatalytic coating composition.4. The air purification ...

PROCESS FOR MAKING LINEAR LONG-CHAIN ALKANES FROM RENEWABLE FEEDSTOCKS USING CATALYSTS COMPRISING HETEROPOLYACIDS

A hydrodeoxygenation process for producing a linear alkane from a feedstock comprising a saturated or unsaturated Coxygenate that comprises an ester group, carboxylic acid group, carbonyl group and/or alcohol group is disclosed. This process comprises contacting the feedstock with (i) a catalyst comprising about 0.1% to about 10% by weight of a metal selected from Group IB, VIB, or VIII of the Periodic Table, and (ii) a heteropolyacid or heteropolyacid salt, at a temperature between about 150° C. to about 250° C. and a hydrogen gas pressure of at least about 300 psig. By contacting the feedstock with the catalyst and heteropolyacid or heteropolyacid salt under these temperature and pressure conditions, the Coxygenate is hydrodeoxygenated to a linear alkane that has the same carbon chain length as the Coxygenate. 1. A hydrodeoxygenation process for producing a linear alkane from a feedstock comprising a saturated or unsaturated Coxygenate comprising a moiety selected from the group consisting of an ester group , carboxylic acid group , carbonyl group , and alcohol group , wherein the process comprises:{'sub': 10-18', '10-18, 'a) contacting said feedstock with (i) a catalyst comprising about 0.1% to about 10% by weight of a metal selected from Group IB, VIB, or VIII of the Periodic Table, and (ii) a heteropolyacid or heteropolyacid salt, at a temperature between about 150° C. to about 250° C. and a hydrogen gas pressure of at least about 300 psig, wherein the Coxygenate is hydrodeoxygenated to a linear alkane, and wherein the linear alkane has the same carbon chain length as the Coxygenate; and'}b) optionally, recovering the linear alkane produced in step (a).2. The hydrodeoxygenation process of claim 1 , wherein said Coxygenate is a fatty acid or a triglyceride.3. The hydrodeoxygenation process of claim 1 , wherein said feedstock comprises a plant oil or a fatty acid distillate thereof.4. The hydrodeoxygenation process of claim 3 , wherein said feedstock comprises(i) ...

Catalyst for preparing 1,5-pentanediol via hydrogenolysis of tetrahydrofurfuryl alcohol, method and application thereof

The present invention provides a method for preparing 1,5-pentanediol via hydrogenolysis of tetrahydrofurfuryl alcohol. The catalyst used in the method is prepared by supporting a noble metal and a promoter on an organic polymer supporter or an inorganic hybrid material supporter, wherein the supporter is functionalized by a nitrogen-containing ligand. When the catalyst is used in the hydrogenolysis of tetrahydrofurfuryl alcohol to prepare 1,5-pentanediol, a good reaction activity and a high selectivity can be achieved. The promoter and the nitrogen-containing ligand in the supporter are bound to the catalyst through coordination, thereby the loss of the promoter is significantly decreased, and the catalyst has a particularly high stability. The lifetime investigation of the catalyst, which has been reused many times or used continuously for a long term, suggests that the catalyst has no obvious change in performance, thus reducing the overall process production cost.

Extruded resid demetallation catalyst

Catalyst supports, supported catalysts, and a method of preparing and using the catalysts for the demetallation of metal-containing heavy oil feedstocks are disclosed. The catalyst supports comprise alumina and 5 wt % or less titania. Catalyst prepared from the supports have at least 30 to 80 volume percent of its pore volume in pores having a diameter of between 200 and 500 angstroms. Catalysts in accordance with the invention exhibit improved catalytic activity and stability to remove metals from heavy feedstocks during a hydroconversion process. The catalysts also exhibit increased sulfur and MCR conversion.

Hydrocarbon Dehydrocyclization in the Presence of Carbon Dioxide

The invention relates to converting non-aromatic hydrocarbon in the presence of CO 2 to produce aromatic hydrocarbon. CO 2 methanation using molecular hydrogen produced during the aromatization increases aromatic hydrocarbon yield. The invention also relates to equipment and materials useful in such upgrading, to processes for carrying out such upgrading, and to the use of such processes for, e.g., natural gas upgrading.

MESOPOROUS TUNGSTEN OXIDE COMPOSITION

The present disclosure relates to tungsten oxide composition. Specifically, the present disclosure relates to mesoporous tungsten oxide composition that is active for multiple reactions, including aromatic alkylation, alkene coupling, alkene cyclization, alkyne oxidation, alcohol dehydrogenation reactions. 1. A tungsten oxide composition comprising micropores and mesopores , wherein the micropores have average diameter less than 2 nm and mesopores have average diameter from 2 to 50 nm.2. The tungsten oxide composition of claim 1 , wherein the micropores have average diameter of about 0.6 nm as determined by fitting the low pressure carbon dioxide adsorption-desorption isotherms at 298K data to the non-local density functional theory model claim 1 , and mesopores have average diameter of about 3.4 nm to 3.8 nm as determined by fitting the nitrogen adsorption-desorption isotherm data to the Barrett-Joyner-Halenda model.3. The tungsten oxide composition of claim 1 , wherein the tungsten oxide composition comprises an orthorhombic phase at room temperature.4. The tungsten oxide composition of claim 3 , wherein the orthorhombic phase of the tungsten oxide composition comprises Hions.5. The tungsten oxide composition of claim 4 , wherein the orthorhombic phase has a crystal unit cell structure of a=7.359 Å claim 4 , b=12.513 Å claim 4 , and c=7.704 Å.6. The tungsten oxide composition of claim 3 , wherein the lattice growth direction is perpendicular to the (200) planes.7. The tungsten oxide composition of claim 1 , wherein the tungsten oxide composition comprises a hexagonal phase at room temperature.8. The tungsten oxide composition of claim 1 , wherein the electron paramagnetic resonance spectra of the tungsten oxide composition has a proportionality factor of 1.99 claim 1 , and a number of unpaired electron spins equal or higher than 1.0×10.9. The tungsten oxide composition of claim 8 , wherein the number of unpaired electron spins is equal or higher than 1.0×10.10. ...

CATALYTIC COMPOSITE AND IMPROVED PROCESS FOR DEHYDROGENATION OF HYDROCARBONS

A catalytic composite for a cyclic process of adiabatic, non-oxidative dehydrogenation of an alkane into an olefin, comprising a dehydrogenation catalyst, a semimetal and a carrier supporting the catalyst and the semimetal. During the reduction and/or regeneration stages of the adiabatic process, the semimetal releases heat which can be used to initiate the dehydrogenation reactions, which are endothermic in nature, thereby reducing the need for hot air flow and combustion of coke as heat input. The semi-metal is inert towards the dehydrogenation reaction itself, alkane feed and olefin product as well as other side reactions of the cyclic process such as cracking and decoking. 1. A catalytic composite suitable for a cyclic process of adiabatic , non-oxidative dehydrogenation of an alkane into an olefin , comprising:a dehydrogenation catalyst;a semimetal; anda carrier supporting the dehydrogenation catalyst and the semimetal;wherein the semimetal is inert towards the dehydrogenation, and releases heat in situ when exposed to at least one of a reducing stage and an oxidizing stage of the cyclic process.2. The catalytic composite of claim 1 , wherein the semimetal is at least one of boron claim 1 , silicon claim 1 , germanium claim 1 , arsenic claim 1 , antimony claim 1 , tellurium claim 1 , polonium claim 1 , astatine and a combination thereof3. The catalytic composite of claim 1 , wherein the semimetal is antimony.4. The catalytic composite of claim 1 , wherein the semimetal releases more than 700 kJ of heat per mole of the semimetal per reduction and oxidation cycle.5. The catalytic composite of claim 1 , wherein the semimetal is present in the catalytic composite in an amount of from 1 to 50 wt. % based on the total weight of the catalytic composite.6. The catalytic composite of claim 1 , wherein the semimetal has an average particle size of 0.25-0.75 μm.7. The catalytic composite of claim 1 , wherein the semimetal has an average particle size of 20-80 nm.8. The ...

CO SHIFT CATALYST, CO SHIFT REACTION APPARATUS, AND METHOD FOR PURIFYING GASIFIED GAS

A CO shift catalyst according to the present invention reforms carbon monoxide (CO) in gas. The CO shift catalyst has one of molybdenum (Mo) or iron (Fe) as a main component and has an active ingredient having one of nickel (Ni) or ruthenium (Ru) as an accessory component and one or two or more kinds of oxides from among titanium (Ti), zirconium (Zr), and cerium (Ce) for supporting the active ingredient as a support. The temperature at the time of manufacturing and firing the catalyst is equal to or higher than 550° C. 1. A CO shift catalyst which reforms carbon monoxide (CO) in gas ,has molybdenum (Mo) or iron (Fe) as a main component,has an active ingredient having nickel (Ni) or ruthenium (Ru) as an accessory component and a complex oxide including two or more kinds from among titanium (Ti), and silica (Si), for supporting the active ingredient as a support, and formed by firing them at a temperature from 550° C. to 800° C.2. The CO shift catalyst according to claim 1 ,wherein a support amount of the main component of the active ingredient is 0.1 to 25 percent by weight, and a support amount of the accessory component is 0.01 to 10 percent by weight.3. A CO shift reaction apparatus comprising the CO shift catalyst according to .4. A method for purifying gasified gas claim 1 , comprising:a step of removing smoke and dust in gasified gas obtained by a gasification furnace by a filter;a step of clarifying the gasified gas after removal of smoke and dust by a wet scrubber apparatus;a step of removing carbon dioxide and hydrogen sulfide in the gasified gas after clarification; and{'sub': '2', 'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a step of obtaining purified gas by performing the CO shift reaction for converting CO in the gasified gas after removal of carbon dioxide and hydrogen sulfide into COby using the CO shift catalyst according to .'} The present invention relates to a CO shift catalyst for converting CO in gasified gas into CO, a CO shift reaction ...

ELECTROCATALYSTS, THE PREPARATION THEREOF, AND USING THE SAME FOR AMMONIA SYNTHESIS

Compositions comprising a first metal component and a second metal component wherein the molar ratio of the first metal component to the second metal component is in the range of 1:9 to 9:1, respectively, and wherein a surface of the second metal component is coated with the first metal component, is disclosed. Uses the compositions as catalysts are further disclosed. Electrochemical cells containing the compositions are further disclosed. A process of synthesizing ammonia using the compositions is further disclosed. 1. A composition comprising a first metal component comprising one or more metals and a second metal component comprising one or more metals , wherein:(i) at least one surface of said second metal component is coated with said first metal component;(ii) the molar ratio of said first metal component to said second metal component are in the range of 1:9 to 9:1, and(iii) said composition is in the form of particles.2. The composition of claim 1 , wherein said particles have a size in the range of 1 nm to 50 μm.3. The composition of claim 1 , wherein said first metal component and/or second metal component comprise two metals.4. The composition of claim 1 , wherein said first metal component comprises Fe claim 1 , Ru claim 1 , Pt claim 1 , Pd claim 1 , Sn claim 1 , Co claim 1 , Mo claim 1 , and any combination thereof.5. The composition of claim 1 , wherein said second metal component comprises Ti claim 1 , Sn claim 1 , Ru claim 1 , Fe claim 1 , Pt claim 1 , Pb claim 1 , Bi claim 1 , Hg claim 1 , Cd claim 1 , and any combination thereof.6. The composition of claim 1 , wherein said first metal component is FeOor FeOor FeOFeO and wherein said second metal component is TiO.7. The composition of claim 1 , wherein said first metal component is Fe and wherein said second metal component is Sn.8. The composition of claim 1 , wherein said first metal component is Ru or Fe and wherein said second metal component is Pt or Pd or Sn.9. The composition of claim 1 , ...

Catalysts by concurrent creation of support and metal (3c-sam)

A catalyst structure comprising dispersed metal catalyst on support, wherein the support but not the metal catalyst can be observed using x-ray diffraction, and wherein the metal catalyst can be chemically detected.

CATALYST STRUCTURES FOR MITIGATING CATALYST DEACTIVATION AND RELATED METHODS

A catalyst structure is disclosed. The catalyst structure comprises a catalytic material and a metal material on the catalytic material, where the metal material comprises particle sizes in a range from about 1.5 nanometers to about 3 nanometers. An interface between the metal material and the catalytic material comprises bonds between the metal material and the catalytic material. A method of mitigating catalyst deactivation is also disclosed, as is a method of carbon monoxide disproportionation. 1. A catalyst structure , comprising:a catalytic material; anda metal material on the catalytic material, an interface between the metal material and the catalytic material comprising bonds between the metal material and the catalytic material, and the metal material comprising particle sizes in a range from about 1.5 nanometers to about 3 nanometers.2. The catalyst structure of claim 1 , wherein the catalytic material comprises molybdenum carbide (MoC) claim 1 , titanium carbide (TiC) claim 1 , vanadium carbide (VC) claim 1 , zirconium carbide (ZrC) claim 1 , hafnium carbide (HfC) claim 1 , niobium carbide (NbC claim 1 , NbC) claim 1 , tantalum carbide (TaC(where x=about 0.4 to about 1)) claim 1 , an oxide of molybdenum claim 1 , titanium claim 1 , vanadium claim 1 , zirconium claim 1 , hafnium claim 1 , niobium claim 1 , or tantalum claim 1 , a mixed metal oxide claim 1 , or a combination thereof.3. The catalyst structure of claim 1 , wherein the metal material comprises platinum (Pt) claim 1 , iron (Fe) claim 1 , cobalt (Co) claim 1 , nickel (Ni) claim 1 , molybdenum (Mo) claim 1 , copper (Cu) claim 1 , potassium (K) claim 1 , palladium (Pd) claim 1 , rhodium (Rh) claim 1 , ruthenium (Ru) claim 1 , iridium (Ir) claim 1 , or combinations thereof.4. The catalyst structure of claim 1 , wherein particle sizes of the metal material comprise particle sizes in a range from about 2 nanometers to about 2.7 nanometers.5. The catalyst structure of claim 1 , wherein the metal ...

CATALYST FOR PRODUCING OLEFIN, AND CONTINUOUS REACTION-REGENERATION OLEFIN PRODUCING METHOD USING THE CATALYST

Disclosed is a catalyst for producing the olefin. The catalyst includes a support including alumina and a sub-support component, and a metal oxide impregnated on the support. The metal oxide includes anyone selected from an oxide of chromium, vanadium, manganese, iron, cobalt, molybdenum, copper, zinc, cerium and nickel; and the sub-support component includes anyone selected from zirconium, zinc and platinum. 1. A catalyst for producing olefin comprising:a support comprising alumina and a sub-support component; anda metal oxide impregnated on the support,wherein the metal oxide comprises anyone selected from an oxide of chromium, vanadium, manganese, iron, cobalt, molybdenum, copper, zinc, cerium and nickel, andwherein the sub-support component comprises anyone selected from zirconium, zinc and platinum.2. The catalyst of claim 1 , wherein the sub-support component comprises zirconium which is 3 to 15 wt % of the support claim 1 , and wherein the metal oxide comprises chromium oxide which is 10 to 30 wt % of the catalyst.3. The catalyst of claim 2 , wherein the sub-support component further comprises platinum claim 2 , which is 0.05 to 0.5 wt % of the support.4. The catalyst of claim 3 , wherein the sub-support component further comprises zinc claim 3 , which is 5 to 15 wt % of the support.5. A continuous reaction-regeneration olefin producing method comprising:pretreating the catalyst by providing the reduction gas to the catalyst for producing the olefin from the hydrocarbon (stage 1);producing the olefin from the hydrocarbon by using the catalyst pretreated at stage 1 (stage 2);separating the olefin and the catalyst used at stage 2, and regenerating the separated catalyst (stage 3);recycling the catalyst regenerated at stage 3 to the process of stage 1 (stage 4); anditerating stage 1 to stage 4,wherein the catalyst comprises a support including alumina and a sub-support component, and a metal oxide impregnated on the support;wherein the metal oxide comprises ...

Porous shaped metal-carbon products

The present invention provides a porous metal-containing carbon-based material that is stable at high temperatures under aqueous conditions. The porous metal-containing carbon-based materials are particularly useful in catalytic applications. Also provided, are methods for making and using porous shaped metal-carbon products prepared from these materials.

High Productivity Catalyst for Alkane Oxidation to Unsaturated Carboxylic Acids and Alkenes

The present disclosures and inventions relate to composite catalyst compositions for the catalytic oxidation of hydrocarbons such as propane with an oxygen containing stream, in the presence of a composite catalyst comprising CA that comprises at least components a metal M, a support S, and an optional alkali metal A, and also CB that comprises one or more mixed metal oxide phases comprising metals in the relative molar ratios indicated by the formula Mo a V b Ga c Pd d Nb e X f , to produce α,β-unsaturated carboxylic acids such as acrylic acid and/or olefins such as propylene.

Photocatalytic coating, process for producing photocatalytic coating, and process for producing photocatalytic body

This photocatalytic coating contains at least a photocatalytic particle, a binder and water. The binder includes a water-soluble hydrolysate of a silane coupling agent having an ethylene oxide structure. A content of the water-soluble hydrolysate of the silane coupling agent having the ethylene oxide structure is preferably 0.5% by weight or more and 20% by weight or less, based on a weight of a total solid content contained in the photocatalytic coating.

HYDROCARBON CONVERSION CATALYST SYSTEM

The present invention relates to a hydrocarbon conversion catalyst system comprising: a first composition comprising a dehydrogenation active metal on a solid support; and a second composition comprising a transition metal on an inorganic support and a hydrocarbon conversion process utilizing the hydrocarbon conversion catalyst system. 1. A hydrocarbon conversion catalyst system , comprising:a. a first composition comprising a dehydrogenation active metal on a solid support; andb. a second composition comprising a transition metal on an inorganic support.2. The hydrocarbon conversion catalyst system according to claim 1 , wherein the dehydrogenation active metal is selected from the group consisting of platinum claim 1 , palladium claim 1 , iridium claim 1 , chromium claim 1 , and mixtures thereof.3. The hydrocarbon conversion catalyst system according to claim 1 , wherein the dehydrogenation active metal is platinum.4. The hydrocarbon conversion catalyst system according to claim 1 , wherein the solid support is selected from aluminum oxide claim 1 , silicon dioxide claim 1 , zirconium dioxide claim 1 , titanium dioxide claim 1 , magnesium oxide claim 1 , calcium oxide claim 1 , and mixtures thereof.5. The hydrocarbon conversion catalyst system according to claim 4 , wherein the solid support is a mixed of at least two or more metal oxides selected from the group consisting of mixed magnesium-aluminum oxide claim 4 , mixed calcium-aluminum oxide claim 4 , and mixture thereof.6. The hydrocarbon conversion catalyst system according to claim 5 , wherein the mixed of at least two or more metal oxides is derived from a layered double hydroxide.7. The hydrocarbon conversion catalyst system according to claim 1 , wherein the first composition further comprises an additional active metal selected from the group consisting of potassium claim 1 , tin claim 1 , lanthanum claim 1 , indium claim 1 , yttrium claim 1 , ytterbium claim 1 , rhenium claim 1 , and mixtures thereof.8. ...

AMMONIA OXIDATION CATALYST

Provided is a catalyst article for treating an emission gas comprising (a) a noble metal catalyst layer comprising one or more noble metals disposed on a first refractory metal oxide support; and (b) a vanadium catalyst layer comprising vanadium pre-fixed on a second refractory metal oxide support selected from alumina, titania, zirconia, ceria, silica, and mixtures of these, wherein the first catalyst layer is in physical contact with said second catalyst layer. Also provided is a method for making such a catalyst article, a method for treating gas emissions using such an article, and an emission gas treatment system incorporating such an article. 1. A catalyst article for treating an emission gas comprising:a. a noble metal catalyst layer comprising one or more noble metals disposed on a first refractory metal oxide support; andb. a vanadium catalyst layer comprising vanadium pre-fixed on a second refractory metal oxide support selected from alumina, titania, zirconia, ceria, silica, and mixtures of these,wherein the noble metal catalyst layer is in physical contact with the vanadium catalyst layer.2. The catalyst article of claim 1 , wherein said noble metal catalyst layer is a coating applied to an inert substrate selected from the group consisting of honeycomb flow-through monoliths claim 1 , honeycomb wall-flow monoliths claim 1 , and corrugated metal plates claim 1 , and wherein said vanadium catalyst layer is a coating applied to said inert substrate.3. The catalyst article of claim 2 , wherein said noble metal catalyst layer is a first layer and said vanadium catalyst layer is a second layer.4. The catalytic article of claim 3 , wherein said first layer is substantially free of vanadium and said second layer is substantially free of noble metals.5. The catalytic article of claim 4 , wherein aid article is calcined.6. The catalyst article of claim 4 , wherein said second layer comprises vanadia pre-fixed to a titania support claim 4 , wherein said vanadia is ...

Hydrocarbon Dehydrocyclization in the Presence of Carbon Dioxide

The invention relates to converting non-aromatic hydrocarbon in the presence of COto produce aromatic hydrocarbon. COmethanation using molecular hydrogen produced during the aromatization increases aromatic hydrocarbon yield. The invention also relates to equipment and materials useful in such upgrading, to processes for carrying out such upgrading, and to the use of such processes for, e.g., natural gas upgrading. 1. A hydrocarbon conversion process , comprising:{'sub': 2+', '2, '(a) providing a feed comprising ≧1 wt. % of C non-aromatic hydrocarbon and ≧0.1 wt. % of CO;'} the first catalyst includes (i) ≧0.005 wt. % of a dehydrogenation component which comprises one or more of Ga, Zn, Mo, W, La, Pt, and Pd, and (ii) ≧10 wt. % of a molecular sieve component, the molecular sieve component comprising at least one molecular sieve having a Constraint Index in the range of from 1 to 12, and', {'sub': '2', 'the second catalyst includes ≧0.005 wt. % of a COconversion component which comprises one or more of Ru, Rh, Ni, Co, and Fe;'}], '(b) providing first and second catalysts, wherein'}{'sub': 2+', '2, "(c) exposing the feed to the first catalyst under conversion conditions effective for (i) converting ≧10 wt. % of the feed's C non-aromatic hydrocarbon to aromatic hydrocarbon and molecular hydrogen and (ii) increasing aromatic hydrocarbon yield by reacting ≧1 wt. % of the feed's COwith at least a portion of the molecular hydrogen in the presence of the second catalyst to produce methane and water."}2. The process of claim 1 , wherein the feed comprises ≧1 wt. % of CO; 10 wt. % to 40 wt. % ethane; 20 wt. % to 50 wt. % propane claim 1 , and 20 wt. % to 50 wt. % butanes claim 1 , and further comprises 1 wt. % to 40 wt. % methane and ≦1 wt. % of aromatic hydrocarbon.3. The process of claim 1 , wherein the COreaction of step (c) has a greater selectivity for methane than CO.4. The process of claim 1 , wherein (i) the first catalyst includes (i) ≧0.01 wt. % of the ...

PEROVSKITE CATALYSTS ENHANCED COMBUSTION ON POROUS MEDIA

The effects of different perovskite catalysts, catalytic active materials with a crystal structure of ABO, on matrix stabilized combustion in a porous ceramic media are explored. Highly porous silicon carbide ceramics are used as a porous media for a catalytically enhanced matrix stabilized combustion of a lean mixture of methane and air. A stainless steel combustion chamber was designed incorporating a window for direct observation of the flame within the porous media. Perovskite catalytic enhancement of SiC porous matrix with La0.75Sr0.25Fe0.6Cr0.35Ru0.05O3; La0.75Sr0.25Fe0.6Cr0.4O3; La0.75Sr0.25Fe0.95Ru0.05O3; La0.75Sr0.25Cr0.95Ru0.05O3; and LaFe0.95Ru0.05O3, for example, were used to enhance combustion. The flammability limits of the combustion of methane and air were explored using both inert and catalytically enhanced surfaces of the porous ceramic media. By coating the SiC porous media with perovskite catalysts it was possible to lower the minimum stable equivalence ratio. 1. A matrix stabilized porous burner comprising:{'sub': 0.75', '0.25', '0.6', '0.35', '0.05', '3', '0.75', '0.25', '0.6', '0.4', '3', '0.75', '0.25', '0.95', '0.05', '3', '0.75', '0.05', '0.95', '0.05', '3', '0.95', '0.05', '3, 'a combustion chamber comprising a porous ceramic matrix catalytically enhanced with a perovskite catalyst composition selected from the group consisting of LaSrFeCrRuO; LaSrFeCrO; LaSrFeRuO; LaSrCrRuO; and LaFeRuO.'}2. The burner of claim 1 , wherein the porous ceramic matrix comprises a silicon carbide porous ceramic matrix portion claim 1 , and the perovskite catalyst is coated on the surface of the porous silicon carbide ceramic matrix portion.3. The burner of claim 2 , wherein the porous ceramic matrix further comprises an alumina porous ceramic matrix portion positioned adjacent to the silicon carbide porous ceramic matrix portion.4. The burner of claim 1 , wherein the burner produces a stabilized combustion of a lean mixture of natural gas and air.5. The ...

Method of reactivating catalyst

Systems and methods for using and regenerating a catalyst for producing acetic acid from ethane are disclosed. Feed stream comprising ethane and an oxidant including oxygen is flowed to a reactor, in which a catalyst comprising MoVNbPd oxide is disposed. The ethane and the oxidant are reacted in presence of the catalyst under reaction conditions sufficient to produce acetic acid. When the catalyst's ability to catalyze the reaction between the ethane and the oxidant is reduced by a predetermined percentage, the flow of the feed stream to the reactor is ceased. A regenerating gas stream is flowed through the reactor to contact the regenerating gas stream with the catalyst under operating conditions to increase the catalyst's ability to catalyze the reaction between the ethane and the oxidant.

EXHAUST GAS PURIFICATION CATALYST AND METHOD FOR PRODUCING SAME

An object of the present invention is to provide an exhaust gas purification catalyst, and a production method thereof, that improves NOx purification performance in a lean atmosphere. The method of the present invention for producing an exhaust gas purification catalyst comprises preparing fine composite-metal particles, each of which contains W and Rh, by carrying out sputtering on a target material containing W and Rh; and supporting the fine composite-metal particles on a powder carrier. 1. A method for producing an exhaust gas purification catalyst , comprising:preparing fine composite-metal particles, each of which contains W and Rh, by carrying out sputtering on a target material containing W and Rh, andsupporting the fine composite-metal particles on a powder carrier.2. The method according to claim 1 , wherein the target material is a micro-mixed target material obtained by mixing W powder and Rh powder followed by molding and sintering.3. An exhaust gas purification catalyst for purifying NOx in a lean atmosphere claim 1 , comprising:fine composite-metal particles, each of which contains W and Rh;wherein, when the fine composite-metal particles in the exhaust gas purification catalyst are analyzed by STEM-EDX, the W content in 70% or more of the fine composite-metal particles based on the total number of particles is within the range of 31% to 138% of the average W content in the fine composite-metal particles.4. The exhaust gas purification catalyst according to claim 3 , wherein it further comprises a powder carrier claim 3 , and the fine composite-metal particles are supported on the powder carrier.5. The exhaust gas purification catalyst according to claim 4 , wherein the powder carrier is a powder carrier selected from the group consisting of SiO claim 4 , ZrO claim 4 , CeO claim 4 , AlO claim 4 , TiO claim 4 , solid solutions thereof claim 4 , and combinations thereof.6. The exhaust gas purification catalyst according to claim 3 , wherein the average ...

EXHAUST GAS-PURIFYING CATALYST

An exhaust gas-purifying catalyst includes a support and a catalytic metal supported thereby. The support includes a composite oxide represented by AO.xBCO, wherein A represents at least one of an element having a valence of 1 and an element having a valence of 2, B represents an element having a valence of 3, C represents one or more elements selected from iridium, ruthenium, tantalum, niobium, molybdenum, and tungsten, x represents a numerical value of 1 to 6, and a represents a numerical value greater than 0 and less than 2. The catalytic metal includes one or more precious metals selected from rhodium, palladium, and platinum. 1. An exhaust gas-purifying catalyst comprising:{'sub': 2-α', 'α', '3, 'a support including a composite oxide having a composition represented by a general formula AO.xBCO, wherein A represents at least one of an element having a valence of 1 and an element having a valence of 2, B represents an element having a valence of 3, C represents one or more elements selected from the group consisting of iridium, ruthenium, tantalum, niobium, molybdenum, and tungsten, x represents a numerical value within a range of 1 to 6, and α represents a numerical value greater than 0 and less than 2; and'}a catalytic metal supported by the support and including one or more precious metals selected from the group consisting of rhodium, palladium, and platinum.2. The exhaust gas-purifying catalyst according to claim 1 , wherein a ratio of an amount of the element C contained in the composite oxide to a total amount of the element C contained in the exhaust gas-purifying catalyst is 3 atomic % or more.3. The exhaust gas-purifying catalyst according to claim 1 , wherein the element A is one or more elements selected from group consisting of magnesium claim 1 , calcium claim 1 , strontium claim 1 , and barium.4. The exhaust gas-purifying catalyst according to claim 1 , wherein the element B is at least one of aluminum and iron.5. The exhaust gas-purifying ...

PHOTOCATALYST MATERIAL

A photocatalyst material (A) in accordance with an aspect of the present invention includes a core particle () and a shell layer () with which a whole surface of the core particle () is covered. The core particle () contains at least a tungsten oxide, and the shell layer () is constituted by a titanium oxide. 1: A photocatalyst material comprising:a core particle; anda shell layer with which a whole surface of the core particle is covered,the core particle containing at least a tungsten oxide, andthe shell layer being constituted by a titanium oxide.2: The photocatalyst material as set forth in claim 1 , wherein:the shell layer is constituted by a crystalline titanium oxide.3: The photocatalyst material as set forth in claim 1 , wherein:a metal or a metal compound containing at least one of copper, platinum, palladium, iron, silver, gold, nickel, ruthenium, iridium, niobium, and molybdenum is provided on a surface of the shell layer.4: The photocatalyst material as set forth in claim 3 , wherein:an amount of a metal contained in the metal or in the metal compound is 0.01 wt % or greater and 3 wt % or less with respect to the tungsten oxide contained in the core particle.5: The photocatalyst material as set forth in claim 1 , wherein:the core particle contains a mixture of a tungsten oxide and a copper oxide.6: The photocatalyst material as set forth in wherein:an amount of the copper oxide contained in the core particle is greater than 0.01 wt % and less than 100 wt % with respect to the tungsten oxide contained in the core particle.7. (canceled)8: The photocatalyst material as set forth in claim 1 , wherein:a weight proportion of the shell layer to the core particle is 0.01 or greater and 1.0 or less.9. (canceled)10: A method of producing a photocatalyst material claim 1 ,said photocatalyst material comprising:a core particle; anda shell layer with which a whole surface of the core particle is covered,said method comprising the step of:growing, by adding a solution ...

AQUEOUS DISPERSION LIQUID AND COATING MATERIAL, FILM, AND PRODUCT USING THE SAME

In one embodiment, an aqueous dispersion liquid contains at least one particles selected from tungsten oxide particles and tungsten oxide composite particles. A mean primary particle diameter (D50) of the particles is in the range of 1 nm to 400 nm. In the aqueous dispersion liquid, concentration of the particles is in the range of 0.1 mass % to 40 mass %, and pH is in the range of 1.5 to 6.5. The aqueous dispersion liquid excels in dispersibility of particles and capable of maintaining good liquidity for a long period. 1. A photocatalytic material , comprising:a substrate; anda photocatalytic film, formed on the substrate, containing particles selected from the group consisting of tungsten oxide particles and tungsten oxide composite particles,wherein a mean primary particle diameter (D50) of the particles is from 1 nm to 400 nm,wherein the tungsten oxide composite contains at least one metal element selected from transition metal elements and aluminum, or a compound including at least one metal element selected from transition metal elements and aluminum, in a range of 0.001 mass % to 50 mass % as an amount of the metal element, balanced by tungsten oxide, and{'sup': '−1', 'wherein, when a surface state of the particles in the photocatalytic film is observed by a fourier-transform infrared absorption spectroscopy, an absorption peak based on hydroxyl exists in a vicinity of 3700 cmof an absorption spectrum obtained by the fourier-transform infrared absorption spectroscopy.'}2. The photocatalytic material according to claim 1 ,wherein the photocatalytic film exhibits photocatalytic performance when visible light is irradiated.3. The photocatalytic material according to claim 1 ,wherein the photocatalytic film contains at least one selected from the group consisting of a zeolite, an activated carbon, and a porous ceramic.4. The photocatalytic material according to claim 1 ,wherein the metal element is at least one element selected from the group consisting of ...

WATER OXIDATION CATALYSTS AND METHODS OF USE THEREOF

Homogeneous water oxidation catalysts (WOCs) for the oxidation of water to produce hydrogen ions and oxygen, and methods of making and using thereof are described herein. In a preferred embodiment, the WOC is a polyoxometalate WOC which is hydrolytically stable, oxidatively stable, and thermally stable. The WOC oxidized waters in the presence of an oxidant. The oxidant can be generated photochemically, using light, such as sunlight, or electrochemically using a positively biased electrode. The hydrogen ions are subsequently reduced to form hydrogen gas, for example, using a hydrogen evolution catalyst (HEC). The hydrogen gas can be used as a fuel in combustion reactions and/or in hydrogen fuel cells. The catalysts described herein exhibit higher turn over numbers, faster turn over frequencies, and/or higher oxygen yields than prior art catalysts. 1. A method of oxidizing water to oxygen , comprising mixing water with a photosensitizer , and a polyoxometalate water oxidation catalyst , under conditions such that oxygen is formed , wherein the catalyst is [Co(HO)(PWO)][A]wherein A is a cation or combination of cations.2. The method of claim 1 , wherein mixing is done in the presence of an oxidizing agent.3. The method of claim 1 , wherein mixing is done in an electrochemical cell comprising an electrode.4. The method of claim 3 , wherein the electrochemical cell further comprises nanocrystalline TiO.5. The method of claim 1 , wherein the photosensitizer is a ruthenium complex. This Application is a continuation of U.S. application Ser. No. 13/256,227, filed Sep. 13, 2011, now U.S. Pat. No. 8,822,367, issued Sep. 2, 2014, which is a 371 U.S.C of PCT International Patent Serial No. PCT/US2010/027670, filed on Mar. 17, 2010, which claims the benefit of priority to U.S. Provisional Application 61/160,881, filed on Mar. 17, 2009 and U.S. Provisional Application 61/305,301, filed on Feb. 17, 2010. The entirety of each of these applications is incorporated by reference for ...

ALKANE ACTIVATION WITH SINGLE AND BI-METALLIC CATALYSTS

Methods, compositions, and articles of manufacture for alkane activation with single- or bi-metallic catalysts on crystalline mixed oxide supports. 1. A catalytic article of manufacture comprising:{'sub': '2', 'a support comprising amorphous SiO; and'}a bi-metallic catalyst deposited on the support.2. The catalytic article of manufacture of claim 1 , wherein the bimetallic catalyst comprises Pt as a first metal.3. The catalytic article of manufacture of claim 1 , wherein a second metal of the bimetallic catalyst comprises Co.4. The catalytic article of manufacture of claim 1 , wherein a second metal of the bimetallic catalyst comprises Mo.5. A method for non-oxidative coupling of methane comprising:{'sub': '2', 'synthesizing a bi-metallic on a SiOsupport to form a bimetallic catalyst;'}converting methane to ethylene with an initial conversion of 8%.6. The method of claim 5 , wherein the bimetallic catalyst has an initial selectivity in the conversion of methane to ethylene of at least 80%.7. The method of claim 5 , wherein the conversion of methane is at a temperature of between 550° C. and 650° C.8. The method of claim 5 , wherein synthesizing comprises a sequential grafting of Co onto the SiOsupport claim 5 , forming SiOsupported Co.9. The method of claim 8 , wherein the synthesizing further comprises calcinating the SiOsupported Co is impregnated with Pt and reduced.10. The method of claim 9 , wherein the sequential grafting method comprises strong electrostatic adsorption.11. The method of claim 4 , wherein synthesizing comprises a sequential grafting of Mo onto the SiOsupport forming SiOsupported Mo.12. The method of claim 11 , wherein the sequential grafting method comprises incipient wetness impregnation.13. The method of claim 12 , wherein the synthesizing further comprises calcinating the SiOsupported Mo is impregnated with Pt and reduced. This application is a divisional and claims the benefit of and priority to U.S. patent application Ser. No. 15/691,666, ...

A PROCESS FOR CONVERSION OF A HYDROCARBON FEED

The present invention relates to a process for conversion of a hydrocarbon feed comprising saturated hydrocarbon compounds to olefin products comprising contacting a hydrocarbon feed stream with a catalyst in an oxidic form of the formula M1M2M3M4O comprising metals M1, M2, M3 and M4, wherein: M1 is selected from Si, Al, Zr, and mixtures thereof; M2 is selected from Pt, Cr, and mixtures thereof; M3 is selected from W, Mo, Re, and mixtures thereof; and M4 is selected from Sn, K, Y, Yb and mixtures thereof; wherein: mass fraction of M1 is in the range of 0.1 to 0.8; mass fraction of M2 is in the range of 0.001 to 0.2; mass fraction of M3 is in the range of 0.001 to 0.2; mass fraction of M4 is in the range of 0.0001 to 0.2; and mass fraction of oxygen is in the range of 0.1 to 0.8. 1. A process for conversion of a hydrocarbon feed comprising saturated hydrocarbon compounds to olefin products comprising contacting a hydrocarbon feed stream with a catalyst in an oxidic form comprising metals M1 , M2 , M3 and M4 , wherein:M1 is selected from Si, Al, Zr, and mixtures thereof;M2 is selected from Pt, Cr, and mixtures thereof;M3 is selected from W, Mo, Re, and mixtures thereof; andM4 is selected from Sn, K, Y, Yb and mixtures thereof;whereinmass fraction of M1 is in the range of 0.1 to 0.8;mass fraction of M2 is in the range of 0.001 to 0.2;mass fraction of M3 is in the range of 0.001 to 0.2;mass fraction of M4 is in the range of 0.0001 to 0.2; andmass fraction of oxygen is in the range of 0.1 to 0.8.2. The process according to wherein the process is carried out at a temperature in the range of 200° C. to 700° C.3. The process according to wherein the process is carried out at a temperature in the range of 300° C. to 600° C.4. The process according to wherein M2 is Pt.5. The process according to wherein M3 is W.6. The process according to wherein the mass fraction of M1 is in the range of 0.2 to 0.6.7. The process according to wherein the mass fraction of M2 is in the range ...

MULTITUBULAR REACTOR FOR LIQUID PHASE ALCOHOL DEHYDROGENATION AND METHOD FOR LIQUID PHASE ALCOHOL DEHYDROGENATION

The invention relates to a multitubular reactor for dehydrogenation of liquid phase alcohol dehydrogenation and a method of liquid phase alcohol dehydrogenation. Most of the alcohol dehydrogenation reaction is endothermic reaction, the reaction temperature is high and the equilibrium conversion rate is low. 110-. (canceled)11. A multitubular reactor for liquid phase alcohol dehydrogenation , comprising:a reactor shell;a plurality of tubes spaced within the reactor shell, wherein the tubes are made of a gas selectively permeable membrane, which is permeable to hydrogen and oxygen but impermeable to liquid molecules, and wherein one end of the tubes is a liquid phase alcohol inlet, and another end of the tubes is a dehydrogenation product outlet;a dehydrogenation catalyst being provided inside the tubes;an oxidation catalyst being provided outside the tubes and in the reactor shell;at least one oxygen membrane tube disposed in the reactor shell, wherein one end of the oxygen membrane tube is an oxygen inlet, and another end of the oxygen membrane tube is closed; andan oxidation product outlet disposed on the reactor shell.12. The multitubular reactor for liquid phase alcohol dehydrogenation of claim 11 , wherein the gas selectively permeable membrane is made of a molecular sieve claim 11 , silica claim 11 , carbon claim 11 , ceramics claim 11 , porous stainless steel or a composite formed by two or more thereof.13. The multitubular reactor for liquid phase alcohol dehydrogenation of claim 11 , wherein the dehydrogenation catalyst is filled in the form of particles within the tubes claim 11 , and the dehydrogenation catalyst comprises:a supported noble metal and a support thereof, wherein the noble metal is Pd, Pt, Ru or Au, and the support is a metal oxide, a molecular sieve, a carbon material or an organic polymer; anda non-noble metal, wherein the non-noble metal is Cu, Zn, Mn, Ni, Co, Cr or V.14. The multitubular reactor for liquid phase alcohol dehydrogenation of ...

CARBON NANOTUBES, METHOD OF MANUFACTURING SAME, AND POSITIVE ELECTRODE FOR PRIMARY BATTERY COMPRISING SAME

The present invention relates to carbon nanotubes having a pore volume of 0.94 cm/g or more, and being an entangled type, a method of manufacturing the same, and a positive electrode for a primary battery which comprises the same. 1. Carbon nanotubes having a pore volume of 0.94 cm/g or more , and being an entangled type.2. The carbon nanotubes of claim 1 , wherein the carbon nanotubes have a pore volume of 0.95 cm/g or more.3. The carbon nanotubes of claim 1 , wherein the carbon nanotubes have a volume resistivity of 0.0187 Ω·cm or less at a temperature of 25° C. and a pressure of 20 kN.4. The carbon nanotubes of claim 1 , wherein the carbon nanotubes have a specific surface area of 200 m/g to 300 m/g.5. A method of manufacturing carbon nanotubes claim 1 , the method comprising:{'sub': 2', '3, 'allowing a mixture comprising a main catalyst precursor and a co-catalyst precursor to be supported on γ-AlOto prepare an active carrier;'}drying the active carrier through multi-stage drying comprising vacuum drying;heat-treating the dried active carrier to prepare a supported catalyst; andmanufacturing carbon nanotubes in the presence of the supported catalyst.6. The method of claim 5 , wherein the multi-stage drying comprises ambient pressure drying and vacuum drying.7. The method of claim 6 , wherein the ambient pressure drying is performed at a temperature ranging from 80° C. to 160° C.8. The method of claim 6 , wherein the vacuum drying is performed at a temperature ranging from 80° C. to 300° C. and a pressure ranging from 1 mbar to 200 mbar.9. The method of claim 5 , wherein the multi-stage drying comprises primary vacuum drying and secondary vacuum drying claim 5 , wherein the primary vacuum drying is performed at a first temperature and the secondary vacuum drying is performed at a second temperature that is higher than the first temperature.10. The method of claim 9 , wherein the first temperature ranges from 80° C. to 160° C. claim 9 , and the second temperature ...

POROUS SHAPED METAL-CARBON PRODUCTS

The present invention provides a porous metal-containing carbon-based material that is stable at high temperatures under aqueous conditions. The porous metal-containing carbon-based materials are particularly useful in catalytic applications. Also provided, are methods for making and using porous shaped metal-carbon products prepared from these materials. 1. A process for preparing a porous , shaped metal-carbon product , the process comprising:mixing a carbonaceous material with water, a water-soluble organic binder, and a (first) metal precursor to form a metal-carbon mixture, wherein the metal precursor is a compound selected from the group consisting of a metal carbonate, a metal oxide, a metal hydroxide, a salt of a metal acid, a heteropoly acid, a metal carboxylate, a metal carbide, a metal chloride, a metal amine complex-containing compound, a hydrate thereof, and a mixture of any two or more thereof;shaping the metal-carbon mixture to form a green shaped metal-carbon product; andheating the green shaped metal-carbon product to a carbonization temperature to produce a carbonized, shaped metal-carbon product comprising a plurality of pores.211-. (canceled)12. The process of claim 1 , wherein the metal precursor comprises a metal that is a base metal.13. The process of claim 1 , wherein the metal precursor comprises a metal selected from the group consisting of Cu claim 1 , Pb claim 1 , Ni claim 1 , Zn claim 1 , Fe claim 1 , Mo claim 1 , Al claim 1 , Sn claim 1 , W claim 1 , Ta claim 1 , Co claim 1 , Bi claim 1 , Cd claim 1 , Ti claim 1 , Zr claim 1 , Sb claim 1 , Mn claim 1 , Be claim 1 , Cr claim 1 , Ge claim 1 , V claim 1 , Ga claim 1 , Hf claim 1 , In claim 1 , Nb claim 1 , Rh claim 1 , Tl claim 1 , Ru claim 1 , Rh claim 1 , Pd claim 1 , Ag claim 1 , Os claim 1 , Ir claim 1 , Pt claim 1 , Au claim 1 , and combinations thereof.1418-. (canceled)19. The process of claim 1 , wherein the metal precursor is water insoluble.20. (canceled)21. The process of claim 1 ...

Catalyst systems that include metal co-catalysts for the production of propylene

Embodiments of methods of synthesizing a metathesis catalyst system, which include impregnating tungsten oxide on silica support in the presence of a precursor to produce a base catalyst; calcining the base catalyst; dispersing a solid metal-based co-catalyst onto the surface of the base catalyst to produce a doped catalyst; and calcining the doped catalyst to produce a metathesis catalyst system. Further embodiments of processes for the production of propylene, which include contacting a hydrocarbon feedstock comprising a mixture of 1-butene and 2-butene with embodiments of the metathesis catalyst system to produce, via metathesis conversion, a product stream comprising propylene.

AMMONIA OXIDATION CATALYST

A catalyst article for treating an emission gas is provided comprising (a) a first catalyst layer having a plurality of consecutive sub-layers, wherein each sub-layer includes vanadium on a first refractory metal oxide support selected from alumina, titania, zirconia, ceria, silica, and mixtures of these; (b) a second catalyst layer comprising one or more noble metals disposed on a second refractory metal oxide support; and (c) a substrate, wherein the first and second catalyst layers are on and/or within the substrate. 1. A catalyst article for treating an emission gas comprising:a. a first catalyst layer having a plurality of consecutive sub-layers, wherein each sub-layer includes vanadium on a first refractory metal oxide support selected from alumina, titania, zirconia, ceria, silica, and mixtures of these;b. a second catalyst layer comprising one or more noble metals disposed on a second refractory metal oxide support; and 'wherein the first and second catalyst layers are on and/or within the substrate.', 'c. a substrate,'}2. The catalyst article of claim 1 , wherein said vanadium is molecularly dispersed among the sub-layers.3. The catalyst article of claim 1 , wherein each of said sub-layers comprises an equivalent amount of vanadia +/−25%.4. The catalyst article of claim 1 , wherein said first layer contains about 10 to about 250 g/ftof vanadia.5. The catalyst article of claim 1 , wherein said vanadium is vanadia and the vanadia is present in an amount of about 0.1-10 weight percent based on the weight of the first refractory metal oxide support.6. The catalyst article of claim 1 , wherein said first layer comprises vanadia on a support comprising titania.7. The catalyst article of claim 1 , wherein said first layer comprises vanadia on a support comprising titania and an oxide of tungsten.8. The catalyst article of claim 1 , wherein said second layer comprises one or more platinum group metals selected from platinum and palladium on an alumina support claim ...

CATALYSTS FOR HYDRODEOXYGENATION OF OXYGENATED HYDROCARBONS

The present invention provides catalysts, methods, and reactor systems for converting oxygenated hydrocarbons to oxygenated compounds. The invention includes methods for producing cyclic ethers, monooxygenates, dioxygenates, ketones, aldehydes, carboxylic acids, and alcohols from oxygenated hydrocarbons, such as carbohydrates, sugars, sugar alcohols, sugar degradation products, and the like, using catalysts containing palladium, molybdenum, tin, and tungsten. The oxygenated compounds produced are useful in the production of liquid fuels, chemicals, and other products. 1. A heterogeneous catalyst , the heterogeneous catalyst comprising (i) a Group VIII metal , (ii) a member selected from the group consisting of molybdenum , tungsten , tin , and combinations thereof , and (iii) a metal oxide support ,wherein the heterogeneous catalyst is configured to produce a monooxygenated cyclic ether and/or a monooxygenated cyclic ketone when an aqueous oxygenated hydrocarbon feedstock solution, the aqueous feedstock solution comprising water and an oxygenated hydrocarbon selected from the group consisting of a starch, a sugar, a sugar alcohol, a polysaccharide, an oligosaccharide, a trisaccharide, a disaccharide, a monosaccharide, and combinations thereof, and hydrogen are contacted with the heterogeneous catalyst.2. The heterogeneous catalyst of claim 1 , wherein the Group VIII metal is palladium.3. The heterogeneous catalyst of claim 1 , wherein the heterogeneous catalyst comprises between 0.05 and 5.0 wt % palladium.4. The heterogeneous catalyst of claim 1 , wherein the heterogeneous catalyst comprises between 0.05 and 10.0 wt % molybdenum claim 1 , between 0.0125 to 5.0 wt % tin claim 1 , between 0.1 and 20.0 wt % tungsten claim 1 , or combinations thereof.5. The heterogeneous catalyst of claim 1 , wherein the metal oxide support is an acidic support.6. The heterogeneous catalyst of claim 1 , wherein the metal oxide support is stable in the aqueous oxygenated hydrocarbon ...

ADDITIVE COMPOSITION FOR MIXED METAL OXIDE CATALYSTS AND ITS USE IN HYDROCARBON CONVERSION PROCESSES

The present invention provides an additive composition having the general formula: ABC()DOwherein: A is one or more metal elements selected from the group consisting of Group IIA of the periodic table; B, C is one or more metal elements selected from the lanthanide group, series of the periodic table or Yttrium; D is one or more metal elements selected from the group consisting of Manganese, Cobalt, Copper, Nickel or Ruthenium; x is a number defined by 0.5 Подробнее

Catalyst Assembly Including an Intermetallic Compound of Iridium And Tungsten

A catalyst assembly having a substrate including an intermetallic compound of W and Ir. The weight ratio of W to Ir is in a range between a first ratio and a second ratio. A catalyst includes at least one noble metal is supported on and contacts the substrate. The first ratio may be in the range of 48:52 and the second ratio may be in the range of 51:49.

Catalyst for decomposition of nitrous oxide

The present invention relates to a catalyst for decomposition of nitrous oxide and also to its method of preparation and use. 110.-. (canceled)11. A nitrous oxide decomposition catalyst comprising rhodium on a catalyst carrier , wherein the catalyst carrier is obtained by mixing zirconium dioxide powder with a silicon compound as binder , optionally a porogen , optionally an acid , water and optionally also further additives to form a kneadable composition , homogenizing the composition , shaping the composition into shaped articles , drying and calcination , wherein the binder is selected from silicon compounds of general formulae (I) to (VI){'br': None, 'sub': x', '4-x, '(Hal)SiR\u2003\u2003(I)'}{'br': None, 'sub': x', '4-x, 'sup': '1', '(Hal)Si(OR)\u2003\u2003(II)'}{'br': None, 'sub': x', '4-x, 'sup': 1', '2, '(Hal)Si(NRR)\u2003\u2003(III)'}{'br': None, 'RxSi(OR1)4-x \u2003\u2003(IV)'}{'br': None, 'sub': x', '4-x, 'sup': 1', '2, 'RSi(NRR)\u2003\u2003(V)'}{'br': None, 'sup': 1', '1', '2, 'sub': x', '4-x, '(RO)Si(NRR)\u2003\u2003(VI)'}whereHal in each occurrence is independently halogen,R in each occurrence is independently H or a substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, arylalkyl or aryl radical,{'sup': 1', '2, 'Rand Rin each occurrence are each independently H or a substituted or unsubstituted alkyl, acyl, arylalkyl or aryl radical, and'}x is from 0 to 4.12. The catalyst according to wherein the catalyst carrier is prepared by mixinga) 50 to 98 wt % of zirconium dioxide powder,b) 2 to 50 wt % of the silicon compound as binder,c) 0 to 48 wt % of porogen, andd) 0 to 48 wt % of further additives,wherein the sum total of components a) to d) adds up to 100 wt %, in the presence of water and optionally of an acid to form a kneadable composition.13. The catalyst according to wherein the zirconium dioxide powder consists essentially of monoclinic zirconium dioxide.14. The catalyst according to wherein zirconium dioxide powder has a ...

PREPARATION OF METHYL METHACRYLATE VIA AN OXIDATIVE ESTERIFICATION PROCESS

A catalyst comprising palladium, bismuth, and at least one third element X selected from the group consisting of P, S, Sc, V, Ga, Se, Y, Nb, Mo, La, Ce, and Nd, wherein the catalyst further comprises a support. 1. A catalyst comprising palladium , bismuth , and at least one third element X selected from the group consisting of P , S , Sc , V , Ga , Se , Y , Nb , Mo , La , Ce , and Nd , wherein the catalyst further comprises a support.2. The catalyst of wherein X is selected from the group consisting of Y claim 1 , Ga and combinations thereof.3. The catalyst of wherein the support comprises at least one of alumina and silica.4. The catalyst of wherein the support comprises alumina modified with magnesia.5. The catalyst of wherein the support comprises primarily silica.6. The catalyst of wherein the support is modified with alumina claim 5 , magnesia claim 5 , or a combination thereof.7. The catalyst of wherein the silica comprises primarily pyrogenic silica.8. The catalyst of wherein X is Y.9. The catalyst of wherein X is Ga.10. The catalyst of wherein the support is selected from the group consisting of activated carbon claim 1 , magnesium oxide claim 1 , zinc oxide claim 1 , titanium oxide claim 1 , calcium carbonate and combinations thereof.11. The catalyst of wherein X is selected from the group consisting of Ce claim 1 , Mo and combinations thereof. The invention relates to a catalyst that is useful for the preparation of carboxylic acid esters via oxidative esterification.The production of methyl methacrylate (MMA) from methacrolein (MAC), methanol, and oxygen is known. For example, U.S. Pat. No. 6,040,472 discloses this reaction using a palladium (Pd)-lead (Pb) crystalline structure, PdPb, on a silica support that has minor alumina and magnesia components. However, the Pd—Pb catalyst is capable of producing undesirably high amounts of methyl formate as a by-product. U.S. Pat. No. 4,518,796 discloses the use of a Pd-bismuth (Bi) catalyst. However, that catalyst ...

METHOD FOR THE PREPARATION OF A MONOLITHIC CATALYST FOR THE REDUCTION OF NITROGEN OXIDES, VOC AND CARBON MONOXIDE IN AN OFF-GAS

Method for the preparation of a monolithic catalyst for the reduction of nitrogen oxides VOC and carbon monoxide in an off-gas, the catalyst comprises at least one platinum group metal, vanadium oxide, titania and optionally tungsten oxide. 1. Method for the preparation of a monolithic catalyst for the reduction of nitrogen oxides VOC and carbon monoxide in an off-gas , the catalyst comprises at least one platinum group metal , vanadium oxide , titania and optionally tungsten oxide , the method comprises the steps of:a) providing a monolithic substrate;b) providing an aqueous solution of a vanadium compound;c) providing an aqueous solution of one or more compounds of the at least one platinum group metal;d) adding particles of titania to the aqueous solution of the vanadium compound to obtain a suspension comprising the titania particles suspended in the aqueous vanadium compound solution;e) precipitating at least part of the vanadium compound in the suspension of step d) on surface of the titania particles to obtain a suspension of titania supported vanadium compound particles;f) adjusting the pH value of the suspension to a value of at least 6 and adding the aqueous solution of the one or more compounds of the at least one platinum group metal to the pH adjusted suspension of the titania supported vanadium compound particles to obtain a wash coat slurry containing a suspended solid phase with the one or more compounds of the at least one platinum group metal adsorbed on the titania supported vanadium compound particles; oradding the aqueous solution of the one or more compounds of the at least one platinum group metal to suspension of the titania supported vanadium compound particles and subsequently adjusting the pH value of the suspension to a value of at least 6 to obtain a wash coat slurry containing a suspended solid phase with the one or more compounds of the at least one platinum group metal adsorbed on the titania supported vanadium compound particles;g) ...

Catalyst for Selectively Producing Acetic Acid Through the Partial Oxidation of Ethane

The invention relates to the development of a catalyst for selectively producing acetic acid from a gaseous feedstock of ethane, ethylene or mixtures thereof and oxygen at a low temperature. Said gaseous feedstock is brought together with a catalyst containing the oxides of Mo, V and Nb and nano metallic Pd optionally together with a hetero-poly acid and/or Sb and Ca. The present catalytic system provides both higher selectivity and yield of acetic with minimal production of side products of ethylene and CO. 1. A catalyst comprising oxides of Mo , V and Nb and nano metallic Pd , the catalyst having a composition represented by the formula MoVNbPdOwhereina is 16,b is 4 to 10,c is 0.2 to 4, andd is 0.001 to 0.02, andwherein x is a number determined by the valence requirements of the other elements in the catalyst composition.2. The catalyst of claim 1 , further comprising a hetero-poly acid and/or Sb and Ca.3. The catalyst of claim 1 , wherein said catalyst is a supported catalyst further comprising a support.4. The catalyst of claim 3 , wherein said support comprises a microporous material claim 3 , a nanoporous material or mixtures thereof.5. The catalyst of claim 3 , wherein said supported catalyst comprises from 10 to 50% by weight catalyst composition and 50 to 90% by weight support.6. The catalyst of claim 1 , wherein said catalyst is a supported catalyst further comprising a titania support.7. A method of manufacturing the catalyst of claim 1 , comprising the steps of:a) forming a mixture comprising Mo, V, Nb and Pd in a solution;b) drying said mixture to form a dried solid material; andc) calcining said dried solid material to form said catalyst.8. The method of claim 7 , wherein said mixture is formed by combining a first solution with a second solution claim 7 , wherein said first solution and said second solution each contain at least one element selected from the group consisting of Mo claim 7 , V claim 7 , Nb and Pd.9. The method of claim 7 , wherein said ...

PREPARATION OF METHYL METHACRYLATE VIA AN OXIDATIVE ESTERIFICATIN PROCESS

A process for producing methyl methacrylate, the process comprising contacting reactants comprising methacrolein, methanol and an oxygen-containing gas, under reaction conditions in the presence of a solid catalyst comprising palladium, bismuth and at least one third element X, where X is selected from the group consisting of P, S, Sc, V, Ga, Se, Y, Nb, Mo, La, Ce, and Nd, wherein the solid catalyst further comprises a support selected from at least one member of the group consisting of silica, alumina, calcium carbonate, active carbon, zinc oxide, titanium oxide and magnesium oxide. 1. A process for producing methyl methacrylate , the process comprising contacting reactants comprising methacrolein , methanol and an oxygen-containing gas , under reaction conditions in the presence of a solid catalyst comprising palladium , bismuth and at least one third element X , where X is selected from the group consisting of P , S , Sc , V , Ga , Se , Y , Nb , Mo , La , Ce , and Nd , wherein the solid catalyst further comprises a support selected from at least one member of the group consisting of silica , alumina , calcium carbonate , active carbon , zinc oxide , titanium oxide and magnesium oxide.2. The catalyst of any of the wherein X is selected from the group consisting of Y claim 1 , Ga and combinations thereof.3. The catalyst of any of wherein the support comprises at least one of alumina and silica.4. The catalyst of wherein the support comprises alumina modified with magnesia.5. The catalyst of wherein the support comprises primarily silica.6. The catalyst of wherein the support is modified with alumina claim 5 , magnesia claim 5 , or a combination thereof.7. The catalyst of wherein the silica comprises primarily pyrogenic silica.8. The process of wherein the support is selected from at least one member of the group consisting of pyrogenic silica claim 1 , silica gel claim 1 , alpha alumina and gamma alumina.9. The process of wherein the support comprises gamma alumina ...

METHODS FOR PRODUCING ALKANES FROM BIOMASS

Methods and systems for producing one or more alkanes from biomass by hydrodeoxygenation are disclosed. Biomass may be converted to one or more alkanes by heating the biomass with a catalyst mixture that includes a noble metal and at least one of a transition metal and derivative thereof. The catalyst mixture may further include a solid acid. Heating may be performed at a single temperature and pressure. 1. A method of converting biomass to one or more alkanes , the method comprising: a noble metal;', 'at least one of a transition metal and a transition metal compound; and', 'a solid acid,, 'heating the biomass and a catalyst mixture for forming the one or more alkanes, wherein the catalyst mixture compriseswherein the heating is performed at a temperature of about 150° C. to about 250° C. and under a pressure.2. The method of claim 1 , wherein the heating comprises heating the biomass comprising a carbohydrate claim 1 , polysaccharide claim 1 , monosaccharide claim 1 , disaccharide claim 1 , cellulose claim 1 , lignin claim 1 , starch claim 1 , pentose claim 1 , or any combination thereof.3. The method of claim 1 , wherein the heating comprises heating the biomass comprising organic waste claim 1 , food processing by-product claim 1 , a vegetable mixture claim 1 , a fruit mixture claim 1 , corncob claim 1 , rice straw claim 1 , rice husk claim 1 , tapioca claim 1 , sawdust claim 1 , pone wood claim 1 , bagasse claim 1 , corn stover claim 1 , sugar cane claim 1 , hemicellulose claim 1 , glycogen claim 1 , lactose claim 1 , sucrose claim 1 , maltose claim 1 , cellobiose claim 1 , hexose claim 1 , maize straw claim 1 , wheat bran claim 1 , rice hulls claim 1 , grains claim 1 , plant matter claim 1 , animal product claim 1 , beef suet claim 1 , aldol adducts of furfural claim 1 , or any combination thereof.4. The method of claim 1 , wherein the forming comprises forming the one or more alkanes comprising a Cto Calkane claim 1 , Cto Calkyl alcohol claim 1 , Cto ...

Odh catalyst regeneration and integration with an air separation unit

Oxidative dehydrogenation of alkanes employs a catalyst, usually a mixed metal oxide, to convert, in the presence of oxygen, a lower alkane into its corresponding alkene. Continuous operation of an oxidative dehydrogenation process may result in a gradual decrease of catalyst activity and or selection, requiring downtime for regeneration. Provided herein is a process for regeneration of an oxidative dehydrogenation catalyst including initiating regeneration by passing a regeneration gas over the catalyst, monitoring regeneration by comparing the oxygen concentration of the regeneration gas before and after being passed over the catalyst, and ceasing regeneration when the oxygen concentration of the regeneration gas after passed over the catalyst is at least 90% of the concentration of the regeneration gas before being passed over the catalyst.

Process for the Manufacture of Propanediol

A process for manufacturing 1,3-propanediol by reacting glycerol with hydrogen in the presence of a supported catalyst, the supported catalyst comprising at least one first compound of an element selected from iridium, rhodium, palladium and platinum and at least one second compound of an element selected from chromium, molybdenum and tungsten, both compounds being supported on alumina, wherein the at least one second compound content in the catalyst expressed in weight of trioxide per weight of catalyst is lower than 20% by weight and wherein the reaction is carried out in a liquid medium containing water in an amount of at least 3 g and less than 900 g of water per kg of liquid medium. 1. A process for manufacturing 1 ,3-propanediol by reacting glycerol with hydrogen in the presence of a supported catalyst , the supported catalyst comprising at least one first compound of an element selected from the group consisting of iridium , rhodium , palladium and platinum and at least one second compound of an element selected from the group consisting of chromium , molybdenum and tungsten , both said compounds being supported on alumina , wherein the at least one second compound content in the catalyst expressed in weight of trioxide per weight of catalyst is lower than 20% by weight and wherein the reaction is carried out in a liquid medium containing water in an amount of at least 3 g and less than 900 g of water per kg of liquid medium.2. The process according to claim 1 , wherein the liquid medium contains at most 600 g of water per kg of liquid medium.3. The process according to claim 1 , wherein the at least one second compound content in the catalyst expressed in weight of trioxide per weight of catalyst is lower than or equal to 15% by weight.4. The process according to claim 1 , wherein the alumina in the supported catalyst is selected from the group consisting of gamma alumina claim 1 , delta alumina claim 1 , theta alumina claim 1 , and any mixture thereof.5. ...

CATALYSTS FOR HYDRODEOXYGENATION OF OXYGENATED HYDROCARBONS

The present invention provides catalysts, methods, and reactor systems for converting oxygenated hydrocarbons to oxygenated compounds. The invention includes methods for producing cyclic ethers, monooxygenates, dioxygenates, ketones, aldehydes, carboxylic acids, and alcohols from oxygenated hydrocarbons, such as carbohydrates, sugars, sugar alcohols, sugar degradation products, and the like, using catalysts containing Group VIII metals. The oxygenated compounds produced are useful in the production of liquid fuels, chemicals, and other products. 143-. (canceled)44. A heterogeneous catalyst , the heterogeneous catalyst comprising (i) a Group VIII metal , (ii) a second metal , and (ii) a metal oxide support ,wherein the heterogeneous catalyst is configured to produce a mixture of reaction products, the mixture comprising alcohols having a concentration greater than about 1% as a weight percentage of the total carbon entering the system and cyclic ethers having a concentration greater than about 1% as a weight percentage of the total carbon entering the system, when an aqueous oxygenated hydrocarbon feedstock solution, the aqueous feedstock solution comprising water and an oxygenated hydrocarbon selected from the group consisting of a starch, a sugar, a sugar alcohol, a polysaccharide, an oligosaccharide, a trisaccharide, a disaccharide, a monosaccharide, and combinations thereof, and hydrogen are contacted with the heterogeneous catalyst; andwherein the metal oxide support is stable in the aqueous oxygenated hydrocarbon feedstock solution; andwherein the heterogeneous catalyst is capable of being in operation for greater than 20 days without a regeneration of the catalyst.45. The heterogeneous catalyst of claim 44 , wherein the Group VIII metal is palladium.46. The heterogeneous catalyst of claim 44 , wherein the heterogeneous catalyst comprises between 0.05 and 5.0 wt % palladium.47. The heterogeneous catalyst of claim 44 , wherein the second metal is a member ...

Ruthenium-based catalyst for hydrogen production from ammonia decomposition, preparation method therefor and application thereof

Disclosed is a ruthenium-based catalyst for hydrogen production from ammonia decomposition, comprising an active component, a promoter and a carrier, wherein the active component is ruthenium, the promoter is cesium and/or potassium, and the carrier comprises magnesium oxide, an activated carbon, cerium oxide, molybdenum oxide, tungsten oxide, barium oxide and potassium oxide. The present invention further discloses a preparation method and application of the aforementioned ruthenium-based catalyst for hydrogen production from ammonia decomposition. Compared with the prior art, the ruthenium-based catalyst for hydrogen production from ammonia decomposition provided by the present invention is low in preparation cost and simple in process, and has high catalytic activity at low temperature and good heat resistance.

PRODUCTION METHODS OF CATALYST FOR HYDROGENATION AND DIOL

The invention relates to a novel catalyst for hydrogenation for hydrogenating at least one of dicarboxylic acid or its acid anhydride. The catalyst for hydrogenation according to a first embodiment is obtained by supporting at least one of palladium or platinum, and cobalt on a carrier, and subjecting the resulting carrier to a reduction treatment at 400 K or higher. The catalyst for hydrogenation according to a second embodiment is obtained by supporting at least one of palladium or platinum, and molybdenum on a carrier, and subjecting the resulting carrier to a reduction treatment at 500 K or higher. 1. A production method of a catalyst for hydrogenation for hydrogenating at least one of dicarboxylic acid or its acid anhydride , comprising:supporting at least one of palladium or platinum, and cobalt on a carrier, and subjecting the resulting carrier to a reduction treatment at 400 K or higher.2. A production method of a catalyst for hydrogenation for hydrogenating at least one of dicarboxylic acid or its acid anhydride , comprising:supporting at least one of palladium or platinum, and molybdenum on a carrier, and subjecting the resulting carrier to a reduction treatment at 500 K or higher.3. The production method of a catalyst for hydrogenation according to claim 1 , wherein the reduction treatment is a reduction treatment in a gas phase.4. A production method of a diol claim 1 , comprising:subjecting a carrier having supported thereon at least one of palladium or platinum, and cobalt to a reduction treatment at 400 K or higher, andhydrogenating at least one of dicarboxylic acid or its acid anhydride in the presence of the reduced carrier as a catalyst, thereby producing a diol.5. A production method of a diol claim 1 , comprising:subjecting a carrier having supported thereon at least one of palladium or platinum, and molybdenum to a reduction treatment at 500 K or higher, andhydrogenating at least one of dicarboxylic acid or its acid anhydride in the presence of ...

CATALYST FOR ETHANE ODH

A catalyst for oxidative dehydrogenation (ODH) of ethane with an empirical formula Mo—V—Te—Nb—Pd—O produced using a process comprising impregnation of the Pd component on the surface of the catalyst following a calcination step using a Pd compound free of halogens. The resulting catalyst can be used in both diluted and undiluted ODH processes and shows higher than expected activity without any loss of selectivity. 1. An oxidative dehydrogenation catalyst comprising a mixed metal oxide having the empirical formula{'br': None, 'sub': a', 'b', 'c', 'd', 'e', 'f, 'MoVTeNbPdO'} a, b, c, d, e, and f are the relative atomic amounts of the elements Mo, V, Te, Nb, Pd and O, respectively; and', 'when a=1, b=0.01 to 1.0, c=0.01 to 1.0, d=0.01 to 1.0, 0.001 Подробнее

CATALYST FOR ETHANE ODH

A catalyst for oxidative dehydrogenation (ODH) of ethane with an empirical formula Mo—V—Te—Nb—Pd—O produced using a process comprising impregnation of the Pd component on the surface of the catalyst following a calcination step using a Pd compound free of halogens. The resulting catalyst can be used in both diluted and undiluted ODH processes and shows higher than expected activity without any loss of selectivity. 1. A process for preparing an oxidative dehydrogenation catalyst comprising a mixed metal oxide having the empirical formula{'br': None, 'sub': a', 'b', 'c', 'd', 'e', 'f, 'MoVTeNbPdO'} a, b, c, d, e and f are the relative atomic amounts of the elements Mo, V, Te, Nb, Pd, and O, respectively; and', 'a is 1, b is from 0.01 to 1.0, c is from 0.01 to 1.0, d is from 0.01 to 0.1.0, e is from 0.0001 to less than 0.10, and f is dependent on the oxidation state of the other elements;, 'wherein'} admixing compounds of elements Mo, V, Te, and Nb, in a solvent comprising water to produce a first mixture;', 'heating the first mixture in a first pressurized vessel at a temperature of from 100° C. to 200° C.;', 'recovering a first insoluble material from the first pressurized vessel;', 'subjecting the first recovered insoluble material to a calcining at a temperature of from 500° C. to 700° C. under an inert atmosphere to produce a calcined product;', {'sub': 3', '4', '3', '2', '3', '2', '3', '2, 'contacting the calcined product with an aqueous solution comprising a Pd compound to form second mixture, wherein the aqueous solution comprising the Pd compound is prepared from a Pd compound chosen from [Pd(NH)](NO), Pd(HCO), Pd(CHCOO)an analogous Pd containing salt, or a combination thereof;'}, 'subjecting the second mixture to drying; and', 'recovering a second insoluble material from provide the catalyst, and', 'wherein the process excludes calcination after the impregnation of Pd., 'the process comprising2. The process of claim 1 , wherein the first mixture in the first ...

Production of 1,6-hexanediol from adipic acid

Processes are disclosed for the conversion of adipic acid to 1,6-hexanediol employing a chemocatalytic reaction in which an adipic acid substrate is reacted with hydrogen in the presence of particular heterogeneous catalysts including a first metal and a second metal on a support. The adipic acid substrate includes adipic acid, mono-esters of adipic acid, di-esters of adipic acid, and salts thereof. The first metal is selected form the group of Pt, Rh and mixtures thereof and the second metal is selected from the group of Mo, W, Re and mixtures thereof.

THREE WAY CATALYST HAVING AN NH3-SCR ACTIVITY, AN AMMONIA OXIDATION ACTIVITY AND AN ADSORPTION CAPACITY FOR VOLATILE VANADIUM AND TUNGSTEN COMPOUNDS

Three way catalyst having an NH-SCR activity, an ammonia oxidation activity and an adsorption capacity for volatile vanadium and tungsten compounds volatilized off an upstream SCR active catalyst. 1. Three way catalyst having an NH3-SCR activity , an ammonia oxidation activity and an adsorption capacity for volatile vanadium and tungsten compounds volatilized off an upstream SCR active catalyst , the three way catalyst comprising high surface compounds selected from high surface metal oxides , zeolites , silica , non-zeolite silica alumina , and mixtures thereof.2. The three way catalyst of claim 1 , wherein the three way catalyst comprising a bottom layer comprising platinum claim 1 , alumina and/or titania and optionally palladium coated on a substrate or partly or entirely forming the substrate and a top layer comprising oxides of vanadium claim 1 , tungsten and titanium admixed with at least one of a high surface coria claim 1 , alumina claim 1 , silica claim 1 , zirconia claim 1 , non-zeolite silica alumina and zeolite.3. The three way catalyst of claim 2 , wherein the top layer has layer thickness of between 40 μm and 250 μm.4. The three way catalyst of claim 2 , wherein the bottom layer has a layer thickness of between 5 μm and 450 μm.5. The three way catalyst of claim 2 , wherein the top layer has a porosity of between 20% and 80%.6. The three way catalyst according to claim 1 , wherein the three way catalyst is coated on a substrate with a flow through monolith shape.7. The three way catalyst according to claim 2 , wherein the amount of the top layer in the three way catalyst is between 50 to 500 g per liter of the substrate.8. The three way catalyst according to claim 2 , wherein the amount of the bottom layer in the three way catalyst is between 5 and 255 g per liter of the substrate.9. The three way catalyst according to claim 2 , wherein the bottom layer of the three way catalyst contains 0.0018 g-0.35 g platinum and/or palladium per liter of the ...

HYDROCRACKING CATALYST, METHOD FOR PRODUCING SAME, AND METHOD FOR PRODUCING HYDROXY COMPOUND USING SAID CATALYST

The present invention provides a hydrocracking catalyst obtainable by mixing a metal compound (A) including any one metal of Groups 3 to 11 of the Periodic Table, a compound (B) including at least one compound selected from the group consisting of a ruthenium oxide compound (B1) and a high-valence compound (B2) including any metal of Groups 8 to 11 of the Periodic Table, and a metal oxide (C) including a metal of Group 5, Group 6 or Group 7 of the Periodic Table, and conducting reduction treatment. 1. A hydrocracking catalyst obtainable by conducting a reduction treatment after mixing;a metal compound (A) including any one metal of Groups 3 to 11 of the Periodic Table,a compound (B) including at least one compound selected from the group consisting of a ruthenium oxide compound (B1) and a high-valence compound (B2) including any metal of Groups 8 to 11 of the Periodic Table, anda metal oxide (C) including a metal of Group 5, Group 6 or Group 7 of the Periodic Table.2. The hydrocracking catalyst according to claim 1 , wherein the compound (B) includes the ruthenium oxide compound (B1) claim 1 , the ruthenium oxide compound (B1) being at least one compound selected from the group consisting of ruthenium oxide and perruthenic acid salts.3. The hydrocracking catalyst according to claim 1 , wherein the compound (B) includes the high-valence compound (B2) claim 1 , the high-valence compound (B2) being a hydroxy metal or a hydroxy metallic acid salt.4. The hydrocracking catalyst according to claim 1 , wherein the metal oxide (C) is at least one compound selected from the group consisting of metal oxides and metallic acid peroxide salts.5. The hydrocracking catalyst according to claim 1 , wherein the reduction treatment is conducted in the presence of hydrogen.6. A method for producing a hydrocracking catalyst claim 1 , comprising a step of:mixing a metal compound (A) including any one metal of Groups 3 to 11 of the Periodic Table, a compound (B) including at least one ...

Applications of a tungsten-containing material

This invention concerns a tungsten-containing material, the application thereof and a preparation method thereof. Tungsten-containing materials can be used as electrochemical energy storage materials, fuel cell electrolytes and chemical catalyst materials. Tungsten-containing materials include tungsten oxide and tungsten oxide hydrate, doped tungsten oxides and doped tungsten oxide hydrates, tungsten oxide composites, and tungsten oxide hydrate composites.

EXHAUST GAS PURIFICATION CATALYST AND METHOD FOR PRODUCING IT

The present invention relates to an exhaust gas purification catalyst that can homogeneously inhibit growth of a plurality of the fine particles at high temperature, and prevent lowering in catalytic activity, as well as a method for producing it. The exhaust gas purification catalyst of the present invention has fine composite metal particles containing a platinum-group metal and tungsten. Moreover, in the exhaust gas purification catalyst of the present invention, when the fine composite metal particles in the exhaust gas purification catalyst have been analyzed by STEM-EDX, the tungsten content of at least 80% of the fine composite metal particles based on number, is in the range of 10% to 350% of the mean content of tungsten in a plurality of the fine composite metal particles. 1. An exhaust gas purification catalyst comprising fine composite metal particles containing a platinum-group metal and tungsten ,wherein when the fine composite metal particles in the exhaust gas purification catalyst have been analyzed by STEM-EDX, the tungsten content of at least 80% of the fine composite metal particles based on number, is in the range of 10% to 350% of the mean content of tungsten in a plurality of the fine composite metal particles.2. An exhaust gas purification catalyst according to claim 1 , further having a powdered support claim 1 , and the fine composite metal particles being supported on the powdered support.3. An exhaust gas purification catalyst according to claim 2 , wherein the powdered support is a powdered support selected from the group consisting of CeO—ZrO claim 2 , SiO claim 2 , ZrO claim 2 , CeO claim 2 , AlO claim 2 , TiOand combinations thereof.4. A method for producing an exhaust gas purification catalyst claim 2 , comprising sputtering on a target material containing a platinum-group metal and tungsten.5. The method according to claim 4 , further comprising dropping a plurality of fine composite metal particles into the ionic liquid by ...

Poison-Resistant Catalyst and Systems Containing Same

A poison-resistant catalytic converter includes a washcoat having a support material comprised of titania and/or silica and a plurality of platinum group metal particles disposed in the support material. The washcoat is disposed on a substrate having a plurality of cells that define respective apertures. The catalytic converter is resistant to poisoning from sulfur and phosphorous compounds while operating at low temperatures. Applications include spark ignited internal combustion engines in combined heat and power systems, vehicles, combustion turbines, boilers and other applications for utilities, industry and vehicle emissions control. 1. A catalytic converter comprising:a substrate body having a plurality of cells that define respective apertures; and a support material comprised of support particles of at least one of titania or silica; and', 'a plurality of catalyst particles disposed in the support material, the catalyst particles comprised of a platinum group metal, the platinum group metal including at least one of Pt, Pd, and Rh, wherein the catalyst particles are substantially uniformly distributed in the support material., 'a washcoat disposed on the substrate, the washcoat including2. The catalytic converter of claim 1 , wherein the support material further comprises a transition metal oxide.3. The catalytic converter of claim 1 , wherein the support material further comprises a rare earth metal oxide.4. The catalytic converter of claim 1 , wherein the support material comprises titania and the catalyst particles are comprised of at least one of Pt and Pd.5. The catalytic converter of claim 4 , wherein the support material comprises 50% to 98% titania by weight.6. The catalytic converter of claim 5 , wherein the support material comprises 10% to 50% of an oxide of at least one of Si claim 5 , Al claim 5 , Ce claim 5 , Zr claim 5 , Fe claim 5 , Cu claim 5 , Zn claim 5 , Mo claim 5 , W claim 5 , and Mn.7. A method of manufacturing a poison-resistant ...

Highly active catalyst for dehydrogenation of alkanes and method of preparation thereof

The invention discloses a novel method for preparation of highly active and selective dehydrogenation catalyst, comprising of metal oxide of group VIB elements of periodic table, and at least one metal oxide from group IA and/or group VIII, supported on alumina or silica or mixture thereof, wherein the accessibility to active sites and dispersion of metal oxides is enhanced by the addition of carbonaceous material such as coke derived from coal or petroleum coke or any other form of carbon, during catalyst preparation and its combustion thereof during calcination.

METHOD AND SYSTEM FOR THE REMOVAL OF PARTICULATE MATTER AND HEAVY METALS FROM ENGINE EXHAUST GAS

Method and system for removal of soot, ash and heavy metals, and optionally additionally NOx and SOx being present in exhaust gas from an engine operated on heavy fuel oil. 1. A method for removal particulate matter , hydrocarbons , and heavy metals being present in exhaust gas from an engine operated on heavy fuel oil , comprising the steps ofoperating the engine at a load to obtain an exhaust temperature of the exhaust gas of at least 325° C.;passing the exhaust gas at exhaust gas temperatures of 325° C. to 550° C. through the at least one filter unit each comprising at least one particulate filter and capturing the particulate matter and heavy metals contained in the exhaust gas;continuously burning the captured soot and adhered hydrocarbons off the at least one particulate filter by contact with a catalyst being arranged on the particulate filter;periodically disconnecting the at least one filter unit from flow of the exhaust gas;applying a pneumatic pulse at the outlet of the at least one particulate filter by pulse injecting air into the outlet in reverse to the previous flow of the exhaust gas and blowing off the captured particulate matter together with the heavy metals from the at least one particulate filter;applying suction at inlet of the at least one particulate filter; andconveying the blown off particulate matter and heavy metals from the at least one particulate filter, optionally through an external auxiliary filter unit, to a container.2. The method of claim 1 , wherein the at least one particulate filter is in form of a wall flow filter.3. The method of claim 2 , wherein the catalyst is coated on or inside the walls of the at least one particulate filter.4. The method of claim 1 , wherein the catalyst comprises of titanium dioxide claim 1 , oxides of vanadium and tungsten and metallic palladium.5. The method of claim 1 , wherein body of the at least one particulate filter is prepared from silicon carbide claim 1 , cordierite claim 1 , mullite ...

PROCESS FOR PRODUCTION OF ADIPIC ACID FROM 1,6-HEXANEDIOL

Processes are disclosed for the conversion of 1,6-hexanediol to adipic acid employing a chemocatalytic reaction in which 1,6-hexanediol is reacted with oxygen in the presence of particular heterogeneous catalysts including at least one of platinum or gold. The metals are preferably provided on a support selected from the group of titania, stabilized titania, zirconia, stabilized zirconia, silica or mixtures thereof, most preferably zirconia stabilized with tungsten. The reaction with oxygen is carried out at a temperature from about 100° C. to about 300° C. and at a partial pressure of oxygen from about 50 psig to about 2000 psig. 125-. (canceled)26. A process for preparing adipic acid , the process comprising reacting 1 ,6-hexanediol and oxygen in the presence of a catalyst comprising platinum on a zirconia or stabilized zirconia support to produce a reaction mixture comprising adipic acid.27. The process of claim 26 , wherein the surface area of the support is equal to or less than about 220 m/g.28. The process of claim 27 , wherein the surface area of the support is equal to or less than about 100 m/g.29. The process of claim 27 , wherein the average pore diameter of the support is in the range of at least about 5 nanometer to about 70 nanometer.30. The process of claim 29 , wherein the average pore diameter of the support is at least about 10 nm.31. The process of claim 26 , wherein the support further comprises tungsten.32. The process of claim 31 , wherein the tungsten is present in an amount ranging from about 1 wt % to about 15 wt % of the total weight of the support.33. The process of claim 26 , wherein the reacting the 1 claim 26 ,6-hexanediol with oxygen in the presence of a heterogeneous catalyst is carried out at a temperature in the range of from about 100° C. to about 180° C.34. The process of claim 33 , wherein the reacting the 1 claim 33 ,6-hexanediol with oxygen in the presence of a heterogeneous catalyst is carried out at a temperature in the ...

Catalyst for contaminant reduction and methods of use thereof

Described herein are heterogeneous catalysts for removing impurities, such as halogen oxyanions (e.g., ClO4− and ClO3−), from a fluid, the catalyst can comprise: an oxygen atom transfer (OAT) transition metal, a Group VIII metal, and a support, where the transition metal, and the Group VIII metal can be in physical communication with the support either directly or indirectly through each other, whereby the catalyst can chemically remove impurities from the fluid. Certain embodiments provide catalysts that further comprise nitrogen donor ligand(s). Accordingly, such catalysts that comprise the OAT transition metal in the form of a complex with one or more nitrogen donor ligands have enhanced efficiency in reducing halogen oxyanion (e.g., ClO4−) to Cl−. Also described are methods or kits for making the catalysts and methods or reactor for the treatment of a fluid utilizing the catalyst.

CATALYST FOR DEHYDROGENATION OF LIGHT ALKANES

A novel catalyst composition and its use in the dehydrogenation of alkanes to olefins. The catalyst comprises a Group VIII noble metal and a metal selected from the group consisting of manganese, vanadium, chromium, titanium, and combinations thereof, on a support. The Group VIII noble metal can be platinum, palladium, osmium, rhodium, rubidium, iridium, and combinations thereof. The support can be silicon dioxide, titanium dioxide, aluminum oxide, silica-alumina, cerium dioxide, zirconium dioxide, magnesium oxide, metal modified silica, silica-pillared clays, silica-pillared micas, metal oxide modified silica-pillared mica, silica-pillared tetrasilicic mica, silica-pillared taeniolite, zeolite, molecular sieve, and combinations thereof. The catalyst composition is an active and selective catalyst for the catalytic dehydrogenation of alkanes to olefins. 1. A bimetallic catalyst composition comprising:a Group VIII noble metal;a metal selected from the group consisting of manganese, vanadium, chromium, titanium, and combinations thereof; anda support.2. The catalyst composition according to wherein the Group VIII noble metal is selected from the group consisting of platinum claim 1 , palladium claim 1 , osmium claim 1 , ruthenium claim 1 , iridium claim 1 , rhodium claim 1 , and combinations thereof.3. The catalyst composition according to wherein the Group VIII noble metal is selected from the group consisting of platinum claim 1 , palladium claim 1 , and combinations thereof.4. The catalyst composition according to wherein the Group VIII noble metal is present in an amount ranging from 0.001 wt % to 40 wt % on an elemental basis of the catalyst composition.5. The catalyst composition according to wherein the manganese claim 1 , vanadium claim 1 , chromium claim 1 , titanium claim 1 , and combinations thereof claim 1 , is present in an amount from 0.001 to 40 wt % on an elemental basis of the catalyst composition and present claim 1 , at least partially in a metallic ...

PROCESS FOR HYDROGENATION OF OLEFINIC OR ACETYLENIC BONDS

The present invention relates to a process for hydrogenation of olefinic or acetylenic bonds. Further, the present invention relates to a process for selective hydrogenation of olefinic or acetylenic bonds and/including triglycerides using modified metal supported on solid acidic metal oxide catalyst and the process for the preparation thereof. The present invention provides a process for hydrogenation of olefinic or acetylenic bonds using metal supported on solid acid metal oxide based catalyst, at moderate conditions. The present invention also relates to the preparation of metal supported on solid acid metal oxide based catalyst for hydrogenation reactions under mild conditions. 1. A process for hydrogenation of olefinic or acetylenic bonds , said process comprising:a. activating a catalyst in a flow of hydrogen gas in a solvent 10 times volume of the substrate at room temperature ranging between 20-30° C.,b. reacting the catalyst of step (a) with reactant in the range of 1-10 wt % with respect of substrate by stirring for 0.5-15 hours at atmospheric pressure and room temperature (20-30° C.),c. obtaining the desired product from step (b).2. The process according to claim 1 , wherein the catalyst used in step (a) is solid acidic support comprising a metal oxide claim 1 , mixed metal oxides or modified metal oxides.3. The process according to claim 2 , wherein metals selected from group II A claim 2 , IIIA claim 2 , IVA claim 2 , IB claim 2 , IVB claim 2 , VIB claim 2 , and VIIIB.4. The process according to claim 2 , wherein at least one elemental metal dispersed on said support wherein the elemental metal is selected from group VIB claim 2 , IB or VIIIB metals in an amount up to 0.1-1.0 weight percent based upon the total weight of metal and support.5. The process according to claim 1 , wherein yield and selectivity of desired product is up to 100%.6. The process according to claim 1 , wherein the solvent is selected from toluene claim 1 , methanol claim 1 , ...

METHOD FOR PREPARING A CATALYZED FABRIC FILTER AND A CATALYZED FABRIC FILTER

A catalyzed fabric filter substrate and a method of preparing the substrate comprising the steps of a) providing a fabric filter substrate b) providing an aqueous impregnation liquid comprising an aqueous hydrosol of one or more catalyst metal precursor compounds dispersed on nanoparticles of an oxidic metal carrier, a surfactant and a dispersing agent selected from the group of primary amines; c) impregnating the fabric filter substrate with the impregnation liquid; and d) drying and thermal activating the impregnated fabric filter substrate at a temperature below 300° C. to convert the one or more metal compounds of the catalyst precursor to their catalytically active form. 1. A method for preparing a catalyzed fabric filter comprising the steps ofa) providing a fabric filter substrateb) providing an aqueous impregnation liquid comprising an aqueous hydrosol of one or more catalyst metal precursor compounds dispersed on nanoparticles of an oxidic metal carrier, a dispersing agent comprising one or more primary amines and a surfactant;c) impregnating the fabric filter substrate with the impregnation liquid; andd) drying and thermally activating the impregnated fabric filter substrate at a temperature below 300° C. to convert the one or more metal compounds of the catalyst precursor to their catalytically active form.2. The method of claim 1 , wherein the thermally activation of the impregnated fabric substrate is performed prior to or subsequent to installation of the impregnated fabric substrate in a filtration unit.3. The method of claim 1 , wherein the fabric filter substrate consists of woven or non-woven glass fibres coated with a polymeric material.4. The method of claim 3 , wherein the polymeric material consists of polytetrafluoroethylene.5. The method of claim 1 , wherein the one or more catalyst metal precursor compounds comprise ammonium metavanadate claim 1 , ammonium metatungstate claim 1 , ammonium heptamolybdate claim 1 , palladium nitrate claim 1 , ...

Hydrophilic member and hydrophilic product using the same

In one embodiment, a hydrophilic member includes a substrate having a surface and particles existing at least on the surface of the substrate. The particles are constituted of at least one selected from tungsten oxide particles and tungsten oxide composite particles. The substrate surface on which the particles exist has an arithmetic mean roughness Ra in the range of 1 nm to 1000 nm with a reference length of 100 μm, and exhibits hydrophilicity independently of light.

VISIBLE LIGHT-ACTIVATED PHOTOCATALYTIC COATING COMPOSITION AND AIR PURIFICATION FILTER

Disclosed is a visible light-activated photocatalytic coating composition comprising a visible light active photocatalytic material and an aqueous solvent. 1. A visible light-activated photocatalytic coating composition , comprising: a visible light active photocatalytic material; and an aqueous solvent.2. The visible light-activated photocatalytic coating composition of claim 1 , wherein the visible light active photocatalytic material has an activity against visible light in the wavelength range of 380 nm to 500 nm.3. The visible light-activated photocatalytic coating composition of claim 1 , wherein the visible light active photocatalytic material comprises a porous first metal oxide; and a second metal particle supported on the porous first metal oxide claim 1 , a second metal oxide particle claim 1 , or both.4. The visible light-activated photocatalytic coating composition of claim 3 , wherein the first metal oxide comprises at least one selected from titanium oxide claim 3 , tungsten oxide claim 3 , zinc oxide claim 3 , niobium oxide claim 3 , and combinations thereof.5. The visible light-activated photocatalytic coating composition of claim 3 , wherein the second metal of the second metal particle and the second metal oxide particle comprises a transition metal claim 3 , a noble metal claim 3 , or both.6. The visible light-activated photocatalytic coating composition of claim 5 , wherein the second metal comprises at least one selected from the group consisting of tungsten claim 5 , chromium claim 5 , vanadium claim 5 , molybdenum claim 5 , copper claim 5 , iron claim 5 , cobalt claim 5 , manganese claim 5 , nickel claim 5 , platinum claim 5 , gold claim 5 , cerium claim 5 , cadmium claim 5 , zinc claim 5 , magnesium claim 5 , calcium claim 5 , strontium claim 5 , barium claim 5 , radium claim 5 , palladium claim 5 , and combinations thereof.7. The visible light-activated photocatalytic coating composition of claim 3 , wherein the weight ratio of the porous ...

KIRIGAMI DERIVED METAL CATALYSTS

A high surface area to mass catalyst is formed by a method that includes a Kirigami mapped cutting of a flat three metal laminate composite formed on a deposition support. Kirigami derived catalyst has a shape that provides a high surface to mass ratio and promotes the flow of a fluid containing a reagent for a reaction catalyzed by the exterior metal catalyst films of the three metal laminate composite. Structural integrity of the Kirigami derived catalyst results from a support metal film residing between two metal catalyst films. The shaping to the Kirigami derived structure involves cutting the flat three metal laminate composite to that of a Kirigami map, imposing stress on the cut structure to force a non-planar deformation, and delaminating the Kirigami derived catalyst from the deposition support.

Integrated LNT-TWC Catalyst

A layered catalyst composite for the treatment of exhaust gas emissions, effective to provide lean NOtrap functionality and three-way conversion functionality is described. Layered catalyst composites can comprise catalytic material on a substrate, the catalytic material comprising at least two layers. The first layer comprising rare earth oxide-high surface area refractory metal oxide particles, an alkaline earth metal supported on the rare earth oxide-high surface area refractory metal oxide particles, and at least one first platinum group metal component supported on the rare earth oxide-high surface area refractory metal oxide particles. The second layer comprising a second platinum group metal component supported on a first oxygen storage component (OSC) and/or a first refractory metal oxide support and, optionally, a third platinum group metal supported on a second refractory metal oxide support or a second oxygen storage component. 1. A layered catalyst composite for an exhaust stream of an internal combustion engine , the layered catalyst composite comprising a catalytic material on a substrate , the catalytic material comprising at least two layers , wherein:the first layer comprises rare earth oxide-high surface area refractory metal oxide particles, an alkaline earth metal supported on the rare earth oxide-high surface area refractory metal oxide particles, and at least one first platinum group metal component supported on the rare earth oxide-high surface area refractory metal oxide particles; andthe second layer comprises a second platinum group metal component supported on a first oxygen storage component (OSC) and/or a first refractory metal oxide support and, optionally, a third platinum group metal supported on a second refractory metal oxide support or a second oxygen storage component.2. The layered catalyst composite of claim 1 , wherein the catalyst is effective to provide both lean NOtrap functionality and three-way conversion functionality.3. ...

A SELECTIVE OXIDATION CATALYST AND A METHOD FOR OXIDIZING C2 HYDROCARBONS IN THE PRESENCE OF THE SELECTIVE OXIDATION CATALYST

Methods of producing a catalyst for oxidation of Chydrocarbons and methods of using the catalyst are disclosed. Molybdenum, vanadium, and niobium metal or metal containing compounds are used to form a slurry in water. After agitating the slurry for at least 15 minutes, palladium or a palladium containing compound is added to the slurry. After further agitation, a precipitate is collected, dried and calcined to obtain an active catalyst, with palladium primarily distributed on a surface of the catalyst. The active catalyst is capable of catalyzing the conversion of Chydrocarbons into acetic acid. 1. A catalyst produced by a process , the process comprising:(a) combining each of a molybdenum, vanadium, and niobium metal or metal-containing compound in water to form a slurry;(b) agitating the slurry for a period of time of at least 15 minutes;(c) after at least 15 minutes of agitating the slurry comprising molybdenum, vanadium, and niobium, adding palladium or a palladium-containing compound to the slurry; and(d) collecting, drying, and calcining the slurry to obtain an active catalyst.2. The catalyst of claim 1 , wherein the active catalyst has a formula of MoVNbPdO claim 1 , where x is in a range of 1 to 5 claim 1 , y is in a range of greater than 0 to 0.5 claim 1 , z is in a range of 0.01 to 0.5 claim 1 , n is in a range of greater than 0 to 0.2 and m is a number determined by the valence requirements of the other elements in the composition.3. The catalyst of claim 1 , wherein the molybdenum metal-containing compound is ammonium heptamolybdate claim 1 , sodium molybdate claim 1 , ammonium orthomolybdate claim 1 , ammonium paramolybdate claim 1 , or an acetate claim 1 , oxalate claim 1 , mandelate claim 1 , or glycolate salt claim 1 , or a combination thereof.4. The catalyst of claim 1 , wherein the vanadium metal-containing compound is ammonium metavanadate claim 1 , sodium metavanadate claim 1 , sodium decavanadate claim 1 , or sodium orthovanadate claim 1 , or an ...

Catalyst To Attain Low Sulfur Gasoline

This invention relates to a hydrodesulfurization catalyst, a method for preparing the catalyst, and a method for the preparation of low sulfur gasoline fuel with minimal loss of RON. The catalyst particles include a group VIB metal and a support material having relatively high surface area, and optionally includes one or more group VIIIB metal. The method for preparing the catalyst allows for greater loading of the active metal species on the surface of the support material under aqueous reaction conditions.

CO SHIFT CATALYST, CO SHIFT REACTION APPARATUS, AND METHOD FOR PURIFYING GASIFIED GAS

A CO shift catalyst according to the present invention reforms carbon monoxide (CO) in gas. The CO shift catalyst has one of molybdenum (Mo) or iron (Fe) as a main component and has an active ingredient having one of nickel (Ni) or ruthenium (Ru) as an accessory component and one or two or more kinds of oxides from among titanium (Ti), zirconium (Zr), and cerium (Ce) for supporting the active ingredient as a support. The temperature at the time of manufacturing and firing the catalyst is equal to or higher than 550° C.

Systems and Methods for Using Pd1+ in a TWC

Stabilized palladium (+1) compounds to mimic rhodium's electronic configuration and catalytic properties are disclosed. Palladium (+1) compounds may be stabilized in perovskite or delafossite structures and may be employed in Three-Way Catalysts (TWC) for at least the conversion of HC, CO and NOx, in exhaust gases. The TWC may include a substrate, a wash-coat and, a first impregnation layer, a second impregnation layer and an over-coat. The second impregnation layer and the over-coat may include palladium (+1) based compounds as catalyst. 1. A catalyst system , comprising:a substrate; anda washcoat suitable for deposition on the substrate, comprising at least one oxide solid selected from the group consisting of at least one carrier metal oxide, and at least one catalyst; and{'sub': '3', 'sup': 1+', '1+, 'wherein the at least one catalyst comprises at least one perovskite structured compound having the formula ABOwherein A is selected from the group consisting of Pd, Pd/Ca, La and combinations thereof, and B is selected from the group consisting of Ti/Nb, Nb, Zr, Mn, Ta, V, Ti, W and combinations thereof.'}2. The catalyst system of claim 1 , wherein the washcoat further comprises at least one oxygen storage material.3. The catalyst system of claim 1 , wherein A is La.4. The catalyst system of claim 1 , wherein B comprises at least one stable (+5) cation.5. The catalyst system of claim 1 , wherein the at least one perovskite structured compound has the formula PdCaTiNbO.6. The catalyst system of claim 1 , wherein the at least one perovskite structured compound has the formula PdCaDEO claim 1 , wherein u+v=1 claim 1 , w+x=1 claim 1 , y>3 claim 1 , and each of D and E are elements having a stable formal charge of (IV) and (V).7. The catalyst system of claim 6 , wherein u*1+v*2+w*4+x*5=6 when y=3.8. The catalyst system of claim 6 , wherein y>2.7.9. The catalyst system of claim 2 , wherein the oxygen storage material may be about 0% to about 80% by weight of the washcoat ...

Poison-Resistant Catalyst and Systems Containing Same

A poison-resistant catalytic converter includes a washcoat having a support material comprised of titania and/or silica and a plurality of platinum group metal particles disposed in the support material. The washcoat is disposed on a substrate having a plurality of cells that define respective apertures. The catalytic converter is resistant to poisoning from sulfur and phosphorous compounds while operating at low temperatures. Applications include spark ignited internal combustion engines in combined heat and power systems, vehicles, combustion turbines, boilers and other applications for utilities, industry and vehicle emissions control.

HYDROGENATION REACTION CATALYST FOR 1,4-ANHYDROERYTHRITOL, METHOD FOR PRODUCING 3-HYDROXYTETRAHYDROFURAN, AND METHOD FOR PRODUCING 1,3-BUTANE DIOL

A hydrogenation reaction catalyst used for a reaction of 1,4-anhydroerythritol and hydrogen to produce 3-hydroxytetrahydrofuran includes a carrier, at least one oxide selected from the group consisting of an oxide of a Group 6 element and an oxide of a Group 7 element, the oxide being supported on the carrier, and a metal other than a Group 6 element and a Group 7 element, the other metal being supported on the carrier. The amount of the oxide supported on the carrier in terms of a metal atom forming the oxide is 0.01 to 10% by weight based on the total amount of the oxide and the carrier being 100% by weight. The molar ratio in terms of metal of the other metal to the Group 6 element and Group 7 element forming the oxide [other metal/Group 6 element and Group 7 element] is 50/1 to 1/4. 1. A method for producing 3-hydroxytetrahydrofuran , comprising a step of reacting 1 ,4-anhydroerythritol and. hydrogen to produce 3-hydroxytetrahydrofuran , wherein the step of reacting 1 ,4-anhydroerythritol and hydrogen is allowed to proceed in the presence of a catalyst comprising a carrier and at least one oxide selected from the group consisting of an oxide of a Group 6 element and an oxide of a Group 7 element , the oxide being supported on the carrier.2. The method for producing 3-hydroxytetrahydrofuran according to claim 1 , wherein. the carrier is activated carbon or an. inorganic oxide.3. The method for producing 3-hydroxytetrahydrofuran according to claim 1 , wherein the catalyst further comprises a metal other than a Group 6 element and a Group 7 element claim 1 , the other metal being supported on the carrier.4. The method for producing 3-hydroxytetrahydrofuran according to claim 3 , wherein the metal is at least one metal selected from the group consisting of palladium claim 3 , platinum claim 3 , iron claim 3 , cobalt claim 3 , nickel and. copper.5. The method for producing 3-hydroxytetrahydrofuran according to claim 2 , wherein the inorganic oxide is at least one ...

Reformer with perovskite as structural component thereof

A reformer includes at least one reformer reactor unit ( 300 ) having a space-confining wall with external ( 307 ) and internal surfaces ( 306 ), at least a section of the wall and space confined thereby defining a reforming reaction zone ( 311 ), an inlet end ( 301 ) and associated inlet ( 302 ) for admission of flow of gaseous reforming reactant to the reforming reaction zone ( 311 ), an outlet end ( 303 ) and associated outlet ( 304 ) for outflow of hydrogen-rich reformate produced in the reforming reaction zone ( 311 ), at least that section of the wall ( 305 ) corresponding to the reforming reaction zone comprising perovskite as a structural component thereof such wall section being gas-permeable to allow gaseous reforming reactant to diffuse therein and hydrogen-rich reformate to diffuse therefrom.

COMPLEX COMPRISING ODH UNIT WITH INTEGRATED OXYGEN SEPARATION MODULE

Oxidative dehydrogenation is an alternative to the energy extensive steam cracking process presently used for the production of olefins from paraffins, but has not been implemented commercially partially due to the unstable nature of hydrocarbon/oxygen mixtures, and partially due to the cost involved in the construction of new facilities. An oxidative dehydrogenation chemical complex designed to reduce costs by including integration of an oxygen separation module that also addresses safety concerns and reduces emission of greenhouse gases is described. 113-. (canceled)15. The process of wherein said oxygen enriched gas comprises at least 20% oxygen claim 14 , preferably at least 70% oxygen claim 14 , most preferably at least 80% oxygen.16. The process of wherein said lower alkane is ethane.17. The process of wherein the ratio of lower alkane containing gas to oxygen containing gas is above the upper explosive limit.18. The process of wherein said lower alkane containing gas and said oxygen containing gas are mixed in a flooded gas mixer prior to entry into said at least one oxidative dehydrogenation reactor.19. The process of wherein said oxidative dehydrogenation catalyst comprises a mixed metal oxide selected from the group comprising: {'br': None, 'sub': a', 'b', 'c', 'd', 'e', 'f, 'MoVTeNbPdO'}, 'i) catalysts of the formulawherein a, b, c, d, e and f are the relative atomic amounts of the elements Mo, V, Te, Nb, Pd and O, respectively; and when a=1, b=0.01 to 1.0, c=0.01 to 1.0, d=0.01 to 1.0, 0.00≤e≤0.10 and f is a number to satisfy the valence state of the catalyst; {'br': None, 'sub': g', 'h', 'i', 'j', 'f, 'NiABDO'}, 'ii) catalysts of the formulawherein: g is a number from 0.1 to 0.9, preferably from 0.3 to 0.9, more preferably from 0.5 to 0.85, most preferably 0.6 to 0.8; h is a number from 0.04 to 0.9; i is a number from 0 to 0.5; j is a number from 0 to 0.5; and f is a number to satisfy the valence state of the catalyst; A is selected from the group ...

PROCESS FOR THE PREPARATION OF GLYCOLS

The invention provides a process for the production of glycols comprising the step of adding to a reactor vessel a saccharide-containing feedstock, a solvent, hydrogen, a retro-aldol catalyst composition and a catalyst precursor and maintaining the reactor vessel at a temperature and a pressure, wherein the catalyst precursor comprises one or more cations selected from groups 8, 9, 10 and 11 of the periodic table, and wherein the catalyst precursor is reduced in the presence of hydrogen in the reactor vessel into an unsupported hydrogenation catalyst. 1. A process for the production of glycols comprising the step of adding to a reactor vessel a saccharide-containing feedstock , a solvent , hydrogen , a retro-aldol catalyst composition and a catalyst precursor and maintaining the reactor vessel at a temperature and a pressure , wherein the catalyst precursor comprises one or more cations selected from groups 8 , 9 , 10 and 11 of the periodic table , and wherein the catalyst precursor is reduced in the presence of hydrogen in the reactor vessel into an unsupported hydrogenation catalyst.2. The process claimed in claim 1 , wherein the glycols comprise ethylene glycol and 1 claim 1 , 2-propylene glycol.3. The process claimed in claim 1 , wherein the saccharide-containing feedstock comprises one or more saccharide selected from the group consisting of monosaccharides claim 1 , disaccharides claim 1 , oligosaccharides and polysaccharides.4. The process claimed in claim 1 , wherein the solvent is water claim 1 , or a C1 claim 1 , C2 claim 1 , C3 claim 1 , C4 claim 1 , C5 or a C6 alcohol or polyalcohol claim 1 , or any combination of mixtures thereof.5. The process claimed in claim 1 , wherein the cation is selected from a group consisting of iron claim 1 , ruthenium claim 1 , cobalt claim 1 , rhodium claim 1 , nickel claim 1 , palladium and platinum.6. The process claimed in claim 1 , wherein the cation is selected from a group consisting of ruthenium claim 1 , nickel ...

CATALYST SUPPORT STRUCTURE, CATALYST INCLUDING THE STRUCTURE, REACTOR INCLUDING A CATALYST, AND METHODS OF FORMING SAME

Structures, catalysts, and reactors suitable for use for a variety of applications, including gasto-liquid and coal-to-liquid processes and methods of forming the structures, catalysts, and reactors are disclosed. The catalyst material can be deposited onto an inner wall of a microtubular reactor and/or onto porous tungsten support structures using atomic layer deposition techniques. 1. A method of forming a tungsten support structure , the method comprising the steps of:providing a polymer support structure;depositing tungsten overlying the polymer support structure using atomic layer deposition; andoptionally exposing the polymer support structure to a calcination process to remove the polymer support structure and thereby form the tungsten support structure.2. The method of forming a tungsten support structure of claim 1 , wherein the tungsten is deposited directly onto the polymer support.3. The method of forming a tungsten support structure of claim 1 , further comprising the step of depositing an oxide overlying the polymer support structure claim 1 , prior to the step of depositing.4. The method of forming a tungsten support structure of claim 1 , wherein the calcination process comprises exposing the polymer support to ammonia.5. The method of forming a tungsten support structure of claim 1 , further comprising the step of:depositing one or more metals selected from the group consisting of Co, Ni, NiPt, Rh, Ru, Pd, Os, V, Fe, and Mn, using atomic layer deposition onto the tungsten support.6. The method of forming a tungsten support structure of claim 1 , wherein the method comprises the calcination process claim 1 , which comprises exposing the polymer support structure to ammonia.7. A microtubular reactor system comprising:one or more microtubes, each microtube comprising an interior wall, wherein tungsten is deposited onto the interior wall using atomic layer deposition, and wherein a metal selected from the group consisting of Co, Ni, NiPt, Rh, Ru, Pd, Os ...

CATALYSTS UTILIZING CARBON DIOXIDE FOR THE EPOXIDATION OF OLEFINS

The present disclosure provides mixed molybdenum oxide catalysts, methods for preparing epoxides from olefins and CO2 using them, and methods of making the mixed molybdenum oxide catalysts by impregnation or co-precipitation. In a preferred embodiment, the mixed molybdenum oxide catalysts are silver/molybdenum oxide catalysts, ruthenium/molybdenum oxide catalysts, or a combination thereof. 1. A method of catalyzing the abstraction of oxygen from carbon dioxide (CO) to form carbon monoxide (CO) comprising contacting a mixed molybdenum oxide catalyst , which comprises a silver oxide , a ruthenium oxide , or a mixture thereof , with an appropriate COfeed stream under suitable temperature and pressure conditions so as to abstract oxygen from the COto form CO.2. The method of wherein the mixed molybdenum oxide catalyst claim 1 , further comprises a Group IA or Group IIA element promoter.3. The method of wherein the mixed molybdenum oxide catalyst claim 1 , further comprises a support.4. The method of wherein the mixed molybdenum oxide catalyst claim 3 , wherein the support is AlO claim 3 , SiO claim 3 , TiO claim 3 , ZrO claim 3 , AlPO claim 3 , carbon claim 3 , graphite claim 3 , or a mixture thereof.5. The method of wherein the mixed molybdenum oxide catalyst claim 1 , wherein the mixed catalyst is a mixed silver/molybdenum oxide catalyst.6. The method of wherein the mixed silver/molybdenum oxide catalyst claim 5 , wherein the molar ratio of AgO to MoOis in the range of about 1.0 to 0.05 to about 1.0 to 20.0.7. The method of wherein the mixed silver/molybdenum oxide catalyst claim 6 , wherein the molar ratio of AgO to MoOis in the range of about 1.0 to 0.1 to about 1.0 to 10.0.8. The method of wherein the mixed silver/molybdenum oxide catalyst claim 7 , wherein the molar ratio of AgO to MoOis in the range of about 1.0 to 0.5 to about 1.0 to 5.0.9. The method of wherein the mixed silver/molybdenum oxide catalyst claim 8 , wherein the molar ratio of AgO to MoOis in the ...

EXHAUST GAS PURIFYING CATALYST

The exhaust gas-purifying catalyst of the invention includes a noble metal, and crystallites that form CZ composite metal particles which serve as a carrier supporting the noble metal and contain at least zirconium (Zr) and cerium (Ce). The CZ composite oxide particles (crystallites) further contain crystal growth-suppressing fine particles which are fine metal particles comprising primarily a metallic element M that melts at 1,500° C. or above and which suppress crystal growth by the CZ composite oxide particles. The content of the metallic element M included in the CZ composite oxide particles, expressed in terms of the oxide thereof, is 0.5 mol % or less of the total oxide. 1. An exhaust gas-purifying catalyst that is disposed in an exhaust pipe for an internal combustion engine and purifies exhaust gases discharged from the internal combustion engine , comprising:a noble metal and crystallites that form CZ composite oxide particles which serve as a carrier supporting the noble metal and contain at least zirconium (Zr) and cerium (Ce), whereinthe CZ composite oxide particles (crystallites) further contain crystal growth-suppressing fine particles which comprise primarily a metallic element M that melts at 1,500° C. or above and suppress crystal growth of the CZ composite oxide particles, andthe content of the metallic element M included in the CZ composite oxide particles, expressed in terms of the oxide thereof, is 0.5 mol % or less of the total oxide.2. The exhaust gas-purifying catalyst according to claim 1 , wherein the metallic element M is of at least one type selected from the group consisting of elements belonging to Groups 5 to 10 and Periods 5 and 6 of the periodic table.3. The exhaust gas-purifying catalyst according to claim 1 , wherein the metallic element M is a metallic element for which the melting point of uncombined metal composed of element M is at least 2 claim 1 ,000° C.4. The exhaust gas-purifying catalyst according to claim 1 , wherein the ...

Slurry phase organic-inorganic fused hybrid catalyst for residue hydroprocessing and process for preparation thereof

Oil soluble organic-inorganic fused slurry phase hydroprocessing catalysts for heavy oils and residues are prepared at supercritical conditions. The hydrodemetallization, hydrodesulfurization, asphaltene conversion and hydrocracking activities of a residue having high percentage of metals, sulfur and asphaltene have been tested in an autoclave batch reactor. The different organic compounds are used to modify the solid fused material (catalyst). The effect of the concentration of modifier on the hydroprocessing and hydrocracking reactions has also been investigated.

COMPOUND, AND METHOD FOR PRODUCING THE SAME

The present invention provides a method for producing a compound represented by formula (2), comprising at least a step of preparing a compound represented by formula (1) and a step of reacting the compound represented by formula (1) with a hydrogen source using a catalyst, 2. The method according to claim 1 , wherein{'sup': 1', '2, 'Rand Rare each an ethyl group.'}3. The method according to claim 1 , whereinthe hydrogen source comprises one or more selected from the group consisting of molecular hydrogen, ammonium formate, sodium formate, hydrazine and sodium boron hydride.4. The method according to claim 1 , whereinthe hydrogen source is molecular hydrogen.5. The method according to claim 1 , whereinthe reacting is carried out by a wet process.6. The method according to claim 1 , whereinthe catalyst is a heterogeneous catalyst.8. The compound according to claim 7 , wherein{'sup': 1', '2, 'Rand Rare each an ethyl group.'} The present invention relates to a novel compound and a method for producing the same. More particularly, the present invention relates to N,N′-dialkylbicyclo[2.2.2]octane-2,3:5,6-dipyrrolidine and a method for producing the same.N,N,N′,N′-tetraalkylbicyclo[2.2.2]oct-7-ene-2,3:5,6-dipyrrolidinium is a useful compound that is used as a raw material of a porous crystalline material (e.g., Organic Structure-Directing Agent (OSDA)) such as zeolite (see, for example, Patent Literatures 1 to 3).For example, for preparing N,N,N′,N′-tetraethylbicyclo[2.2.2]oct-7-ene-2,3:5,6-dipyrrolidinium (I), bicyclo[2.2.2]oct-7-ene-2,3:5,6-tetracarboxylic dianhydride (II) as a starting material is first reacted with ethylamine to obtain N,N′-diethylbicyclo[2.2.2]oct-7-ene-2,3:5,6-tetracarboxydiimide (III), as shown below. Subsequently, the resulting imide compound (III) is reduced using lithium aluminum hydride (LiAlH) to obtain N,N′-diethylbicyclo[2.2.2]oct-7-ene-2,3:5,6-dipyrrolidine (IV). From the dipyrrolidine compound (IV), N,N,N′,N′-teraethylbicyclo[2.2.2]oct-7- ...

CATALYTIC BIOMASS CONVERSION METHODS, CATALYSTS, AND METHODS OF MAKING THE SAME

Described herein are processes for one-step delignification and hydrodeoxygenation of lignin fraction a biomass feedstock. The lignin feedstock is derived from by-products of paper production and biorefineries. Additionally described is a process for converting biomass-derived oxygenates to lower oxygen-content compounds and/or hydrocarbons in the liquid or vapor phase in a reactor system containing hydrogen and a catalyst comprised of a hydrogenation function and/or an oxophilic function and/or an acid function. Finally, also described herein is a process for converting biomass-derived oxygenates to lower oxygen-content compounds and/or hydrocarbons in the liquid or vapor phase in a reactor system containing hydrogen and a catalyst comprised of a hydrogenation function and/or an oxophilic function and/or an acid function. 152-. (canceled)53. A delignification process comprising treating biomass with a selective hydrodeoxygenation catalyst to form 2-methoxy-4-propylphenol , 2 ,6-dimethoxy-4-propylphenol , or mixtures thereof.54. The process of claim 53 , wherein the process is performed in a single step.55. The process of claim 53 , wherein the process is performed in a single step and the hydrodeoxygenation catalyst comprises palladium and zinc.56. The process of claim 55 , wherein the hydrodeoxygenation catalyst comprises zinc and palladium on carbon.57. The process of claim 56 , wherein the palladium on carbon is a nanoparticulate.58. The process of claim 56 , wherein the biomass is wood biomass.59. The process of claim 58 , wherein a single product stream is created in the liquid phase comprising 2-methoxy-4-propylphenol claim 58 , 2 claim 58 ,6-dimethoxy-4-propylphenol claim 58 , or mixtures thereof.60. The process of claim 59 , wherein the percentage by mass of 2-methoxy-4-propylphenol in the single product stream is between about 17% and about 100%.61. The process of claim 53 , wherein cellulose remaining in the biomass after processing is suitable for ...

PHOTOCATALYTIC ELEMENT

A photocatalytic element including: a photocatalytic layer containing at least one photocatalytic material; and a light emitting source in optical communication with the photocatalytic material, the light emitting source disposed sufficiently proximal to the photocatalytic material to raise the surface temperature of at least some of the photocatalytic material to a temperature between 10° C. and 90° C. is provided. 1. A photocatalytic element comprising:a photocatalytic layer comprising at least one photocatalytic material; anda light emitting source in optical communication with the photocatalytic material, the light emitting source disposed sufficiently proximal to the photocatalytic material to raise the surface temperature of at least some of the photocatalytic material to a temperature between 10° C. and 90° C.2. The photocatalytic element according to claim 1 , wherein the light emitting source is sufficiently proximal to the photocatalytic element to provide at least 50% reduction in volatile organic compounds in an environment of above 45% relative humidity.3. The photocatalytic element according to claim 1 , wherein the light emitting source is sufficiently proximal to substantially cover at least 75% of the photocatalytic surface area.4. The photocatalytic element according to claim 1 , wherein the light emitting source is sufficiently proximal to raise the surface temperature of the photocatalytic material to at least 40° C.5. The photocatalytic element according to claim 1 , wherein the light emitting source is a light emitting diode (LED).6. The photocatalytic element according to claim 1 , wherein the photocatalytic material is an oxide semiconductor having the energy level of the valence band lower than 2.85 eV.7. The photocatalytic element according to claim 1 , wherein the photocatalytic material has an optical band gap of at least 2.6 eV.8. The photocatalytic element according to claim 1 , wherein the photocatalytic material is WO.9. The ...

ASC/DEC WITH REAR-CONCENTRATED EXOTHERM GENERATION

A catalyst article including a substrate with an inlet side and an outlet side, a first zone and a second zone, where the first zone includes an ammonia slip catalyst (ASC) comprising a platinum group metal on a support and a first SCR catalyst; where the second zone includes a catalyst selected from the group consisting of a diesel oxidation catalyst (DOC) and a diesel exotherm catalyst (DEC); and where the first zone is located upstream of the second zone. The first zone may include a bottom layer with a blend of: (1) the platinum group metal on a support and (2) the first SCR catalyst; and a top layer comprising a second SCR catalyst, the top layer located over the bottom layer. 1. A catalyst article comprising a substrate comprising an inlet side and an outlet side , a first zone and a second zone ,where the first zone comprises an ammonia slip catalyst (ASC) comprising a platinum group metal on a support and a first SCR catalyst;where the second zone comprises a catalyst selected from the group consisting of a diesel oxidation catalyst (DOC) and a diesel exotherm catalyst (DEC); andwhere the first zone is located upstream of the second zone.2. The catalyst article of claim 1 , wherein the first zone comprisesa. a bottom layer comprising a blend of: (1) the platinum group metal on a support and (2) the first SCR catalyst;b. a top layer comprising a second SCR catalyst, the top layer located over the bottom layer.3. The catalyst article of claim 1 , wherein the support comprises a siliceous material.4. The catalyst article of claim 3 , wherein the siliceous material comprises a material selected from the group consisting of: (1) silica; (2) a zeolite with a silica-to-alumina ratio higher than 200; and (3) amorphous silica-doped alumina with SiO2 content ≥40%.5. The catalyst article of claim 1 , wherein the platinum group metal is present on the support in an amount of about 0.5 wt % to about 10 wt % of the total weight of the platinum group metal and the support. ...

SCR WITH TURBO AND ASC/DOC CLOSE-COUPLED SYSTEM

A catalyst article including a substrate with an inlet end and an outlet end, a first zone and a second zone, where the first zone comprises: a) an ammonia slip catalyst (ASC) bottom layer comprising a platinum group metal on a support; and b) an SCR layer comprising a second SCR catalyst, the SCR layer located over the ASC bottom layer; where the second zone comprises a catalyst (“second zone catalyst”) selected from the group consisting of a diesel oxidation catalyst (DOC) and a diesel exotherm catalyst (DEC); wherein the ASC bottom layer extends into the second zone; and where the first zone is located upstream of the second zone. The ASC bottom layer may include a blend of: (1) the platinum group metal on a support and (2) a first SCR catalyst. 1. A catalyst article comprising a substrate comprising an inlet end and an outlet end , a first zone and a second zone ,where the first zone comprises:a. an ammonia slip catalyst (ASC) bottom layer comprising a platinum group metal on a support; andb. an SCR layer comprising a second SCR catalyst, the SCR layer located over the ASC bottom layer; wherein the ASC bottom layer extends into the second zone; and', 'where the first zone is located upstream of the second zone., 'where the second zone comprises a catalyst (“second zone catalyst”) selected from the group consisting of a diesel oxidation catalyst (DOC) and a diesel exotherm catalyst (DEC);'}2. The catalyst article of claim 1 , wherein the ASC bottom layer comprises a blend of: (1) the platinum group metal on a support and (2) a first SCR catalyst.3. The catalyst article of claim 1 , whereinthe ASC bottom layer extends from the outlet end to less than a total length of the substrate;the SCR layer extends from the inlet end to less than a total length of the substrate, and which at least partially overlaps the ASC bottom layer; andthe second zone catalyst is included in a second layer which extends from the outlet end to less than a total length of the substrate, ...

Catalyst and method for direct conversion of syngas to light olefins

Direct conversion of syngas to light olefins is carried out in a fixed bed or a moving bed reactor with a composite catalyst A+B. The active ingredient of catalyst A is active metal oxide; and catalyst B is one or more than one of zeolite of CHA and AEI structures or metal modified CHA and/or AEI zeolite. A spacing between geometric centers of the active metal oxide of the catalyst A and the particle of the catalyst B is 5 μm-40 mm. A spacing between axes of the particles is preferably 100 μm-5 mm, and more preferably 200 μm-4 mm. A weight ratio of the active ingredients in the catalyst A and the catalyst B is within a range of 0.1-20 times, and preferably 0.3-5.

METHOD FOR PRODUCING 3-HYDROXYTETRAHYDROFURAN AND METHOD FOR PRODUCING 1, 3-BUTANE DIOL

An object of the present invention is to provide a method for producing 3-hydroxytetrahydrofuran that can be used as a raw material for 1,3-butane diol, using as a raw material a compound that can be derived from biomass. 1. A method for producing 3-hydroxytetrahydrofuran , comprising a step of reacting 1 ,4-anhydroerythritol and hydrogen to produce 3-hydroxytetrahydrofuran.2. The method for producing 3-hydroxytetrahydrofuran according to claim 1 , wherein the step of reacting 1 claim 1 ,4-anhydroerythritol and hydrogen is allowed to proceed in the presence of a catalyst comprising a carrier and at least one oxide selected from the group consisting of an oxide of a Group 6 element and an oxide of a Group 7 element claim 1 , the oxide being supported on the carrier.3. The method for producing 3-hydroxytetrahydrofuran according to claim 2 , wherein the carrier is activated carbon or an inorganic oxide.4. The method for producing 3-hydroxytetrahydrofuran according to claim 2 , wherein the catalyst further comprises a metal other than a Group 6 element and a Group 7 element claim 2 , the metal being supported on the carrier.5. The method for producing 3-hydroxytetrahydrofuran according to claim 4 , wherein the metal is at least one metal selected from the group consisting of palladium claim 4 , platinum claim 4 , iron claim 4 , cobalt claim 4 , nickel and copper.6. The method for producing 3-hydroxytetrahydrofuran according to claim 3 , wherein the inorganic oxide is at least one inorganic oxide selected from the group consisting of titania claim 3 , zirconia claim 3 , magnesia claim 3 , silica and alumina.7. A hydrogenation reaction catalyst for 1 claim 3 ,4-anhydroerythritol claim 3 , wherein the hydrogenation reaction catalyst is used for a reaction of 1 claim 3 ,4-anhydroerythritol and hydrogen to produce 3-hydroxytetrahydrofuran claim 3 , and comprises a carrier and at least one oxide selected from the group consisting of an oxide of a Group 6 element and an oxide ...