СПОСОБ И УСТРОЙСТВО ДЛЯ СНИЖЕНИЯ КОНЦЕНТРАЦИИ МОНОКСИДА УГЛЕРОДА И КАТАЛИЗАТОР ДЛЯ ИЗБИРАТЕЛЬНОГО ОКИСЛЕНИЯ МОНОКСИДА УГЛЕРОДА

Данное изобретение используют для селективного снижения концентрации моноксида углерода. Для этого используют устройство, способ и катализатор. Устройство содержит источник богатого водородом газа, источник окисляющего газа. Реакцию избирательного окисления моноксида углерода ведут в присутствии катализатора. В качестве первичного компонента катализатор содержит рутений и дополнительно содержит щелочной или щелочноземельный металл. Щелочной или щелочноземельный металл используют в виде простой массы металла или в форме сплава с рутением, или в качестве первичного компонента он содержит рутений и дополнительно содержит никель, или в качестве первичного компонента он содержит рутений и дополнительно цинк. Изобретение позволяет расширить диапазон эффективных температур, в котором активность избирательной реакции окисления моноксида углерода сохраняется достаточно высокой. 9 с. и 8 з.п. ф-лы, 5 ил.

КАТАЛИЗАТОР ФИШЕРА-ТРОПША

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

КАТАЛИЗАТОР СЕЛЕКТИВНОГО ГИДРИРОВАНИЯ АЦЕТИЛЕНОВЫХ И ДИЕНОВЫХ УГЛЕВОДОРОДОВ В C2-C5+ УГЛЕВОДОРОДНЫХ ФРАКЦИЯХ

Изобретение относится к катализатору селективного гидрирования ацетиленовых и диеновых углеводородов в С2-С5+ углеводородных фракциях. Катализатор представляет собой алюмооксидный носитель, на котором размещены активный компонент палладий и промотор, промотор на носителе закреплен в оксидной форме, частицы палладия закреплены на носителе в нулевой степени окисления в электронном состоянии валентных орбиталей своих атомов, при котором катализатор характеризуется полосой поглощения комплекса монооксида углерода с палладием с волновым числом 2060-2100 см-1 в инфракрасном спектре адсорбированного монооксида углерода, при этом состав катализатора сформирован в следующем соотношении, мас.%: палладий 0,005-1, промотор 0,005-5, оксид алюминия - остальное. Технический результат - повышение активности и селективности катализатора селективного гидрирования алкиновых и диеновых углеводородов в С2-С5+ углеводородных фракциях за счет увеличения дисперсности и изменения электронной плотности и геометрических ...

КАТАЛИЗАТОР ДЛЯ ДЕГИДРИРОВАНИЯ И ДЕГИДРОЦИКЛИЗАЦИИ АЦИКЛИЧЕСКИХ УГЛЕВОДОРОДОВ

Катализатор для дегидрирования и дегидроциклизации ациклических углеводородов, содержащий алюмоцинковую шпинель, платину, оксид цинка и диоксид олова, отличающийся тем, что, с целью повышения активности катализатора, он дополнительно содержит оксид марганца при следующем соотношении компонентов, мас.%: Платина - 0,1-0,5 Оксид цинка - 0,5-10 Диоксид олова - 0, 3-5 Оксид марганца - 0,3-5 Алюмоцинковая шпинель - Остальное ...

Способ подготовки платинусодержащих катализаторов риформинга к эксплуатации

Изобретение относится к каталитической химии, в частности к подготовке платинусодержащих катализаторов (КТ) риформинга к эксплуатации. Повышение активности и селективности КТ по выходу ароматических угл водо- родов и высокооктанового Леизииа достигается добавлением в бензиновую фракцию хлорцдов серы в опреде- ленном количестве.Подготовку КТ ведут подачей на КТ бензиновой фракции, содержащей хлориды серы в количестве 0,1-0,96Z от массы КТ. Способ обеспечивает повышение октанового числа бензина по моторному методу нд 0,8-2,0 пункта и увеличение выхода ароматических углеводородов на 3,3-4,7 отн.Х по сравнению с известным способом. 1 табл. а- 9 СО ел О5 САд ...

Katalysator und Verfahren zur Herstellung von Vinylacetat

The invention relates to a catalyst which contains palladium and/or compounds thereof, cadmium compounds, alkali metal compounds and at least one lanthanoid metal. The invention also relates to the utilization of the catalyst in order to produce vinyl acetate from acetic acid, ethylene and oxygen or gases containing oxygen.

CHEMISCHER REAKTOR UND VERFAHREN ZUR KATALYTISCHEN GASPHASENREAKTIONEN

CATALYST FOR THE CONVERSION OF HYDROCARBONS AND ITS MANUFACTURE AND USE

... 1327738 Catalyst composition INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 1 March 1972 [3 March 1971] 9590/72 Heading B1E [Also in Division C5] A catalyst composition comprises: (a) a carrier which is alumina, silica, alumina-silica or magnesia; (b) 0.005-1% wt. with respect to the carrier of each of platinum and iridium; and (c) 0.005-1% at with respect to the carrier of zinc or a zinc compound (calculated as zinc oxide). The Examples describe compositions of gamma alumina, platinum, iridium, a zinc compound, e.g. the sulphate and, optionally, fluorine or chlorine. In Example 1 the composition is calcined then reduced in a stream of hydrogen before use.

Catalytic method of replacing halogen in halocarbons

As replacements for chlorofluorocarbons, hydro(chloro)fluorocarbons are synthesised by hydrogenating chlorofluorocarbons over a Pd/ZnO/ gamma -Al2O3 catalyst. The ZnO is partially reduced before use and assists the Pd to function catalytically for days instead of hours despite the evolution of halogen.

Partial hydrogenation of cycloaliphatic compounds containing at least two olefinic double bonds

The partial hydrogenation of cycloaliphatic hydrocarbons having at least two olefinic double bonds is effected with hydrogen in the presence of metallic palladium and heavy metal ions (a heavy metal is one having a specific gravity above 5). Suitable starting materials contain 2-4 conjugated or non-conjugated double bonds in a C5-C12 ring which may be substituted by up to three C1-C4 alkyl groups or 1 or 2 double bonds in a C5-C12 ring and additionally 1 or 2 double bonds in a C2-C6 side chain or in a second C5-C8 alicyclic ring which may be fused to the first ring, e.g. cyclopentadiene, 1,3 - cyclohexadiene, 1,3,5-cycloheptatriene, 1,3- or 1,5-cyclooctadiene, cyclooctatetraene, cyclododecadiene, methyl-cyclopentadiene, dimethylcyclooctadiene, 1-vinyl - 1 - cyclohexene, 1 - vinyl - 4 - cyclohexene, limonene, 1,11-dicyclohexenyl, dicyclopentadiene, and bicyclo-[4,2,0]-octatriene-2,4,7. Metallic palladium is deposited on active charcoal, alumina, barium sulphate, calcium carbonate, pumice ...

FOUR WHEEL DRIVE POWER TRANSMISSION

CATALYST FOR PARTIAL HYDROGENATION OF ACETYLENIC COMPOUND

... 1504187 Hydrogenation catalyst BASF AG 2 July 1975 [3 July 1974] 27815/75 Heading B1E [Also in Division C2C] A catalyst for the selective hydrogenation of acetylenic compounds to olefinic compounds comprises a support and an active component comprising palladium and either (i) zinc plus bismuth and/or tellurium, (ii) cadmium plus bismuth and/or tellurium, or (iii) cadmium plus zinc, optionally plus bismuth and/or tellurium. The active component may comprise 20-70pbw of Pd, 10-30pbw of Zn and/or Cd and 10-30pbw of Bi and/or Te. The support may be alumina or pumice, e.g. gamma-alumina or Italian pumice. The catalyst may be in the form of particles of average diameter 0.05-0.35mm.

ALKANE DEHYDROGENATION

PROCEDURE FOR THE PRODUCTION OF HYDROXYLAMINEN.

CHEMICAL PROCEDURE AND CATALYST.

CATALYST AND PROCEDURE FOR THE DEHYDROGENATION AND DEHYDROZYKLISIERUNG.

CATALYST, PROCEDURE FOR ITS PRODUCTION, AS WELL AS ITS USE FOR THE PRODUCTION OF VINYL ACETATE

CATALYST FOR THE PRODUCTION OF ACETIC ACID OR ACETIC ACID AND ETHYL ACETATE, PROCEDURE FOR ITS PRODUCTION AND PROCEDURE FOR THE PRODUCTION OF ACETIC ACID OR ACETIC ACID AND ETHYL ACETATE USING THE SAME

CHEMICAL REACTOR AND PROCEDURE FOR CATALYTIC GASEOUS PHASE REACTIONS

ESTER PROCEDURE.

CATALYST AND PROCEDURE FOR THE PRODUCTION OF VINYL ACETATE

Supported rhodium-lanthanide based catalysts and process for producing synthesis gas

Naphthene ring opening over a ring opening catalyst combination

A Chemical reactor and method for gas phase reactant catalytic reactions

Process and catalyst for producing vinyl acetate

LOW PRESSURE CATALYTIC HYDROGENATION OF CARBONYL-CONTAINING COMPOUNDS

Method and apparatus for removing undesirable chemical substances from gases, exhaust gases, vapors, and brines

Catalyst

ALKANE DEHYDROGENATION

SELECTIVE HYDROGENATION OF MINOR AMOUNTS OF ACETYLENE IN A GAS MIXTURE CONTAINING MAJOR AMOUNTS OF ETHYLENE

PROCESS FOR THE PREPARATION OF VINYL ACETATE

The invention relates to a process for the preparation of vinyl acetate in the gas phase from ethylene, acetic acid and oxygen or oxygen-containing gases on a catalyst which contains palladium and/or compounds thereof and if appropriate additionally gold and/or gold compounds and, as activators, alkali metal compounds and if appropriate additionally cadmium compounds, on a support. The support consists of cylindrical particles with curved front faces. The support material is aerogenic SiO2 or an aerogenic SiO2-Al2O3 mixture having a surface area of 50-250 m2/g and a pore volume of 0.4-1.2 ml/g, which is formed to the extent of at least 50% by pores having a diameter of 50-200 .ANG.ngströms.

REFORMING CATALYST AND A HYDROCARBON CATALYTIC REFORMING PROCESS USING THE CATALYST

REFORMING WITH MULTIMETALLIC CATALYSTS

DISPERSION AND STABILIZATION OF REACTIVE ATOMS ON THE SURFACE OF METAL OXIDES

Particulate metal oxide compositions having reactive atoms stabilized on particulate surfaces and methods for reacting the compositions with saturated and unsaturated species are provided. The preferred particulate metal oxides of the compositions are nanocrystalline MgO and CaO with an average crystallite size of up to about 20 nm. The preferred reactive atoms of the compositions are atoms of the halogens and Group I metals. In one embodiment, chlorine atoms are stabilized on the surface of nanocrystalline MgO thus forming a composition which is capable of halogenating compounds, both saturated and unsaturated, in the absence of UV light and elevated reaction temperatures.

PROCESS AND COMPOSITION FOR INCREASING THE REACTIVITY OF SULFUR SCAVENGING OXIDES

... ²²²In ridding fluids, including hydrocarbon fluids, both gaseous and liquid, of ²sulfur compounds including hydrogen sulfide, oxides of sulfur, and thiols, the ²present invention uses a small quantity of an activator, generally a noble ²metal oxide, preferably a copper species and/or a manganese species, along ²with a known oxide product, such as iron oxide, iron hydroxide, zinc oxide, ²zinc hydroxide, manganese oxide, manganese hydroxide, or combinations thereof, ²to thoroughly remove sulfur contaminants in a short amount of time. The ²activator allows for the use of smaller reactor vessels and the production of ²hydrocarbon fluids substantially free of sulfur products.² ...

PROCESS FOR PRODUCING DIALKYLNAPHTHALENE

PROCESS FOR THE PREPARATION OF VINYL ACETATE

The invention relates to a process fox the preparation of vinyl acetate in the gas phase from ethylene, acetic acid and oxygen and/or oxygen-containing gases on a catalyst of palladium and/or compounds thereof, and optionally. in additions gold and/or gold compounds, and, as activators, alkali metal compounds and optionally in addition, cadmium compounds on a support. The support comprises SiO2 or an SiO2-Al2O3 mixture having a surface area of 50-250 m2/g and a pore volume of 0.4-1.2 ml/g, and has a grain size of from 4 to 9 mm. 5 to 20% of the pore volume of the support is farmed by pores having radii of from 200 to 3,000 angstrom and 50 to 90% of the pore volume is formed by pores having radii of from 70 to 100 .ANG.ngstrom.

CARRIER CATALYST, PROCESS FOR ITS PREPARATION, AND ITS USE FOR THE PREPARATION OF VINYL ACETATE

... ? HOE 91/F 188 of the disclosure: Carrier catalyst, process for its preparation, and its use for the preparation of vinyl acetate The invention relates to a process for the preparation of a catalyst which contains palladium and/or compounds thereof and alkali metal compounds, and additionally cadmium compounds and/or gold and/or compounds thereof, on support particles which have been pressed from SiO2 or an iO2-Al203 mixture with the aid of a binder which comprises a) washing the roasted support particles with an acid which does not react with SiO2 or SiO2-Al2O3 mixtures, until no further cations of the binder employed during pressing of the support particles are released from the support particles; b) then impregnating the support particles with palladium, and gold or cadmium; c) then bringing the impregnated support particles into contact with a solution of a base at least until the thickness of the nobel metal shell generated in this way on the support particles no longer changes substantially ...

ALKANE DEHYDROGENATION

A process for dehydrogenenating C2-C~ alkanes in the presence of steam and a catalyst composition containing zinc aluminate, a tin oxide And platinum, wherein the zinc aluminate support material has been prepared by calcining zinc oxide and a hydrated alumina (so as to alleviate coking during the dehydrogenation process).

CATALYST

The invention relates to an oxidation and combustion catalyst such as the type comprising palladium and zinc oxide. The catalyst may be supported on an alumina or zirconia support and may further comprise an earth metal oxide such as ceria or praseodymium oxide. The catalyst exhibits a lower "light-off" temperature than conventional combustion catalysts and does not require the presence of rhodium.

Verfahren zur Herstellung eines Palladiumkatalysators

Processo di idrogenazione di composti acetilenici miscibili con acqua a composti etilenici

Verfahren zur partiellen Hydrierung von Acetylenverbindungen

PROCEDURE FOR THE PRODUCTION OF METAL CATALYSTS ON CARRIERS.

METHOD OF PRODUCTION OF ECOLOGICALLY PURE HIGH OCTANE GASOLINE

ФОТОКАТАЛИЗАТОР С ВЫСОКОЙ АКТИВНОСТЬЮ И СПОСОБ ЕГО ПОЛУЧЕНИЯ

Настоящее изобретение раскрывает фотокатализатор, который имеет высокую каталитическую активность, является нетоксичным, имеет длительный срок службы, позволяет использовать видимый свет непосредственно для его фотокаталитической реакции и является особенно применимым для генерирования водорода, и способ его получения. Он содержит соединение кадмия, имеет капсулярную структуру, имеет средний диаметр частиц 100 нм или менее и может быть получен добавлением по каплям раствора соли кадмия в раствор соединения натрия или смешением раствора соединения натрия с суспензией частиц соединения кадмия. Международная заявка была опубликована вместе с отчетом о международном поиске.

Hydroxy activated carbon-supported palladium catalyst and its preparation method

Catalyst in use for synthesizing 2-pentanone from ethanol

A catalyst used for synthesizing 2-pentone from ethanol is prepared from zirconium oxide, manganese oxide, zinc oxide, less noble metal (Pt, Pd, Rh, etc) and less assistant (Li, Na, K, Mg, etc) through mixing three oxides, dipping assistant, calcining, dipping noble metal, and calcining. It has high activity, selectivity and stability.

Catalyst for preparing cyclohexene via selective hydrogenation of benzene and preparation method thereof

Method of low metal loading catalyst for preparing glycol from carbohydrate

A catalyst for selective hydrogenation of benzene to produce cyclohexane method for the preparation of tetrahydrobenzene

Method for producing cycloolefin and cycloalkane

生产环烯烃的方法

... 一种生产环烯烃的方法，该方法是在含有金属钌催化剂、水和金属硫酸盐的催化剂浆液存在下用氢部分加氢单环芳烃进行该方法，其中包括控制催化剂活性的步骤。该控制步骤一般包括至少下述步骤之一：在常温常压测量时，在其中催化剂存在的水相的pH值不低于2.5至不高于7.0范围内的条件下，向催化剂浆液添加碱性化合物降低催化剂活性和添加硫酸提高催化剂活性。既可以在反应期间又可以在反应前进行该添加。 ...

Method for one-pot conversion of PET (polyethylene terephthalate) in pure water phase system, catalyst and catalyst preparation method

The invention provides a PET one-pot conversion method in a pure water phase system, a catalyst and a catalyst preparation method, the catalyst is a mesoporous carbon-based ruthenium-zinc oxide multifunctional catalyst, and the loading amount of ruthenium accounts for 1-6% of the mass of the catalyst; and the loading amount of zinc oxide accounts for 3-20% of the mass of the catalyst. The catalyst is simple in preparation process, high in catalytic activity and high in reusability, and the conversion rate of PET (Polyethylene Terephthalate) is close to 100%. Wherein the PET one-pot conversion method is as follows: in an environment without any acid/alkali/organic solvent, under the catalytic action of a mesoporous carbon-based ruthenium-zinc oxide multifunctional catalyst, PET is converted into hydrogen-rich synthesis gas and terephthalic acid chemicals in a pure water phase in a one-pot manner. According to the process, efficient and clean conversion of PET can be achieved, the produced ...

PROCEDE DE PREPARATION D'UN CATALYSEUR POUR L'HYDROGENATION PAR L'HYDROGENE DE LA LIAISON DOUBLE C=C, DES GROUPES NITRO- ET ALDEHYDE DANS LES COMPOSES ALIPHATIQUES ET AROMATIQUES

LE PROCEDE DE PREPARATION D'UN CATALYSEUR POUR L'HYDROGENATION PAR L'HYDROGENE DE LA DOUBLE LIAISON C C, DES GROUPES NITRO- ET ALDEHYDE DANS LES COMPOSES ALIPHATIQUES ET AROMATIQUES CONSISTE EN CE QU'A LA SURFACE D'UNE MEMBRANE EN ALLIAGE COMPOSE DE 80 A 95 MASSIQUES DE PALLADIUM ET DE 5 A 20 MASSIQUES DE RUTHENIUM OU DE RHODIUM, ON APPLIQUE LE ZINC SUR UNE OU SUR DEUX FACES DE LA MEMBRANE, LE RAPPORT DE L'EPAISSEUR DE LA COUCHE DE ZINC A L'EPAISSEUR DE LA MEMBRANE ETANT DE 110 A 100, ON ABANDONNE LA MEMBRANE AVEC LA COUCHE DE ZINC DEPOSEE DESSUS A 20 A 250C, PUIS ON REALISE L'ELIMINATION CHIMIQUE DU ZINC HORS DE LA MEMBRANE PAR TRAITEMENT DE LA MEMBRANE PAR L'ACIDE CHLORHYDRIQUE.

Process for the production of vinyl acetate

CATALYSTS POLYFONCTIONNELS AND PROCESS Of USE

PROCESS Of AROMATIC HYDROCARBON ALKYL HYDRODEALKYLATION

Hydro dealkylation of alkyl aromatic hydrocarbons - on a catalyst contg. cobalt and a second metal component

PROCESS FOR the MANUFACTURE Of HYDROXYLAMINES AND PRODUCTS THUS OBTAINED

PROCEEDED OF PREPARATION Of a CATALYST FOR HYDROGENATION BY the HYDROGEN OF DOUBLE LINKING C=C, GROUPS NITROET ALDEHYDE IN COMPOSE ALIPHATIC AND AROMATIC

PROCESS FOR THE PREPARATION OF DEHYDROGENATION CATALYST AND THE USE THEREOF

Procedure for the production of insatiated esters of carbonic acids

CATALYST AND METHOD FOR IMPROVED CATALYTIC REFORMING OF HY DROCARBURES

CATALYST FOR CYCLOOLEFION AND PROCESS FOR PRODUCTION

A catalyst for cycloolefin production by the partial hydrogenation of a monocyclic aromatic hydrocarbon, the catalyst comprising zirconia as a support and being constituted of particles having an average primary-particle diameter in the range of 3-50 nm and an average secondary-particle diameter in the range of 0.1-30 μm. © KIPO & WIPO 2007 ...

SILICA-BASED MATERIAL, MANUFACTURING PROCESS THEREFOR, NOBLE METAL CARRYING MATERIAL, AND CARBOXYLIC ACID MANUFACTURING PROCESS USING SAME AS CATALYST

TREATING AGENT FOR EXHAUST GAS CONTAINING METAL HYDRIDE COMPOUND AND METHOD FOR TREATING EXHAUST GAS CONTAINING METAL HYDRIDE COMPOUND

A treating agent for an exhaust gas containing a metal hydride compound, which comprises at least one of a metal hydroxide, a metal carbonate and a basic metal carbonate and, carried thereon, at least one metal of noble metals belonging to Group III of the Periodic Table and silver. The treating agent exhibits markedly improved performance capabilities compared to an agent free of a Group III metal or silver. The above treating agent has high performance capabilities for treating the exhaust gas and also undergoes a low exothermic reaction with a metal hydride, and thus is useful for treating an exhaust gas containing a metal hydride compound from a semiconductor manufacturing plant or the like. © KIPO & WIPO 2007 ...

Catalyst and process for preparing vinyl acetate

In the process for preparation of vinyl acetate in the vapor phase comprising reacting ethylene, acetic acid and oxygen or oxygen-containing gases in the presence of a catalyst containing palladium and/or its compounds, cadmium, and alkali metal compounds on a support at 100 to 200 ℃ and 1 to 25 bars, in which the content of palladium is 0.6 wt% to 3.5 wt%, the content of cadmium is 0.1 wt% to 2.5 wt%, the content of the alkali metal is 0.3 wt% to 10 wt% (based on the total mass of the catalyst), and in which the catalyst additionally contains at least a rhenium and/or a zirconium compound; in which the catalyst contains 0.05 wt % to 3 wt % rhenium and/or zirconium relative to total mass of catalyst.

THERMALLY AND MECHANICALLY STABLE PRECIOUS METAL-LOADED CATALYSTS

Catalyst comprising palladium, gold and alkali metal acetate as catalytically active components on an abrasion-resistant support, which is mechanically and thermally stable, shaped bodies that are produced from synthetically pure and mixed metal oxides which may be also modified by means of aluminum, calcium, cerium, iron, lanthanum, magnesium, molybdenum, titanium, yttrium and/or zirconium or oxides thereof. It can be used for preparing vinyl acetate monomer.

CATALYSTS FOR SELECTIVE HYDROGENATION OF ALKYNES AND ALKADIENES

Catalysts have been discovered that are useful in hydrogenation reactions, and particularly for the selective hydrogenation of acetylene and/or methyl acetylene (MA) and/or propadiene (PD) in light olefin-rich feedstreams. These catalysts can selectively hydrogenate acetylene with less selectivity to making oligomers (green oil) as compared with existing commercial catalysts, particularly palladium catalysts. These catalysts are non-palladium catalysts, and have three different constituents that are metal or metal-based components. The metal of the first constituent may be nickel or platinum, the metal of the second constituent may be from Groups 1-10, and the metal of the third constituent may be from Groups 11-12, where the Groups are of the Periodic Table of Elements (new IUPAC notation).

CATALYTIC CONVERTERS, INSERT MATERIALS FOR CATALYTIC CONVERTERS, AND METHODS OF MAKING

Catalytic converters and insert materials for catalytic converters comprising metallized nanostructures coated on metal or ceramic honeycomb substrates are described. The nanostructures can be bonded directly to the channel walls of the metal or ceramic honeycomb substrates, and generally extend approximately 0.1 mm into the open pore volume of the substrates. The nanostructured coating can be used to support various catalyst formulations, where the nanostructured coating can provide advantages such as increasing reactivity of the catalysts by providing higher accessible surface area, decreasing light-off temperature through enabling smaller particle size of the catalysts, improving durability and lifetime of the catalysts through increased thermal stability, decreasing costs through reduced amounts of precious metals, and/or functioning as a filter for particulate matter.

DEVICE AND METHOD FOR DECOMPOSING NITROGEN OXIDES

A device for decomposing the oxides of nitrogen (NOx) contained in effluent compositions, such as the exhaust gases generated by automotive combustion engines, is described. In one embodiment, the device comprises a reaction chamber containing an oxidisable material which when the device is in use will undergo an oxidation/reduction reaction with nitrogen oxides of nitrogen oxidation states greater than 2, especially nitrogen dioxide, to generate nitrogen and an oxide of the oxidisable material. The oxidisable material is regenerated using an electromotive force. In a particularly preferred embodiment, the reaction chamber containing the oxidisable material is associated with a further reaction chamber which is arranged upstream of the reaction chamber containing the oxidisable material. This further reaction chamber contains an oxidation catalyst which is able to oxidise nitric oxide (NO) to nitrogen dioxide (NO2) or other nitrogen oxides having a nitrogen oxidation state greater than ...

Filter comprising a catalyst on a substrate for purification of air

Pt catalyst on a substrate provides an air purification particularly for carbon oxide contained in the inhaled air is caused to react with air oxygen on the surface of carbon oxide catalysts and thus removed. But it is desirable for many air filter applications to eliminate, in addition to CO, other harmful gases from the air also. The Pt catalyst used as gaskmask filter material offers, particularly, but little protection additionally against acid gases. Due to an additional impregnation with the oxides of amine-forming heavy metals, the separating powers for acid gases is increased extraordinarily without reducing the capability of the Pt catalyst to oxidize CO catalytically. There even results an intensification of the respective effectiveness.

Method for removing nitrogen oxides

There are disclosed a nitrogen oxide removal catalyst comprising palladium fixed on at least one metal oxide selected from the group consisting of titanium oxide, aluminum oxide, zinc oxide, and magnesium oxide, and a method for removing nitrogen oxides, comprising bringing a nitrogen oxide-containing gas into contact with the above-mentioned catalyst in the presence of hydrogen.

Pollution control catalyst for internal combustion engine exhaust system/catalytic converter and process for its preparation

A pollution control catalyst for a catalytic converter within the exhaust system of an internal combustion engine is facilely prepared by (i) coating/impregnating a catalyst support with palladium and at least one base metal catalyst, (ii) activating the step (i) catalyst, (iii) next coating/impregnating the step (ii) activated catalyst with at least one platinum group precious metal other than palladium, or combination of palladium and at least one other platinum group precious metal, and (iv) then activating the step (iii) catalyst.

Preparation of substituted phenols

Substituted phenols of the general formula I I where R1, R2, R3, R4 and R5 are each hydrogen or an aliphatic or aromatic hydrocarbon radical, are prepared by dehydrogenating a cyclic alcohol of the general formula II II or a cyclic ketone of the general formula III III where one of the broken lines can be an additional C-C bond, in the gas phase at from 150 DEG to 380 DEG C. over a supported noble metal catalyst, by a process in which the dehydrogenation catalyst used is palladium or platinum on an aluminum spinel carrier, in particular an aluminum spinel which has a BET specific surface area of from 5 to 150 m2/g or, for the dehydrogenation of cyclohexenones, preferably from 10 to 50 m2/g. Particularly suitable aluminum spinels are those which, in addition to aluminum, contain magnesium, zinc, cobalt or nickel. In the novel process, substituted phenols are obtained in high yields and selectivities, and the catalyst has an extremely long life without a significant ...

Process for preparing 2,6-dimethylnaphthalene

A process for producing 2,6-dimethylnapthalene from 1-(p-tolyl)-2-methylbutane, 1-(p-tolyl)-2-methylbutene or a mixture thereof by dehydrocyclization in the presence of a catalyst, comprising using non-acidic activated carbon as a catalyst.

Method of preparing an alumina catalyst support and catalyst for dehydrogenation reactions, and its use

A method of forming a dehydrogenation catalyst support is carried out by forming a mixture comprising a bayerite aluminum hydroxide (Al(OH)3) and water into a support material. The support material is particulized. The particulized support material is compressed to a pressure of at least 5,000 psig to form a shaped body. The shaped body is calcined in pure steam at a temperature of at least 750° C. for at least 0.25 hours to form a catalyst support having an average pore diameter of 200 or greater. The catalyst support can then be treated with a dehydrogenation catalyst component so that the catalyst support contains the dehydrogenation catalyst component to form a dehydrogenation catalyst that can then be used by contacting a hydrocarbon feed with the catalyst within a reactor in the presence of steam under dehydrogenation reaction conditions suitable to form dehydrogenated hydrocarbon products.

METHOD FOR PREPARING PYROCHLORE TYPE OXIDE, POLYMER ELECTROLYTE FUEL CELL, FUEL CELL SYSTEM, AND METHOD FOR PRODUCING ELECTRO CATALYST FOR FUEL CELL

The present invention provides a method for preparing a pyrochlore type oxide having a larger specific surface area, a polymer electrolyte fuel cell and a fuel cell system improved in power generation efficiency and capable of being produced more inexpensively, and a method for producing an electro catalyst for a fuel cell, which electro catalyst has a larger specific surface area, is relatively inexpensive, and has high electrode activity per unit mass. A method for preparing a pyrochlore type oxide represented by A2B2O7-Z wherein A and B represent a metal element, Z represents a number of 0 or more and 1 or less, A includes at least one selected from the group consisting of Pb, Sn, and Zn, and B includes at least one selected from the group consisting of Ru, W, Mo, Ir, Rh, Mn, Cr, and Re, wherein the pyrochlore type oxide is produced by a reaction of a halide or nitrate of A with an alkali salt of a metal acid of B. A method for producing an electro catalyst for a fuel cell, including ...

Functionalized zinc oxide nanoparticles for photocatalytic water splitting

The present invention relates to a photocatalyst composition having visible light activity for hydrogen production through water splitting. More particularly, the present invention discloses a photocatalyst composition comprising a zinc oxide nanoparticles and a conjugated organic moiety selected from the group consisting of oligothiophenes, azo dyes, and perylenes.

PROCESS FOR INITIATION OF OXIDATIVE STEAM REFORMING OF METHANOL AT ROOM TEMPERATURE

A self-started OSRM (oxidative steam reforming of methanol) process at room temperature for hydrogen production. In the process, an aqueous methanol and oxygen are pre-mixed. The mixture is then fed to a Cu/ZnO-based catalyst to initiate an OSRM process at room temperature. The temperature of the catalyst bed, with suitable thermal isolation, may be raised automatically by the exothermic OSRM to enhance the conversion of methanol. A hydrogen yield of 2.4 moles per mole methanol from the process may be obtained.

CATALYST FOR THE CONVERSION OF A HYDROCARBON FEED COMPRISING A SATURATED HYDROCARBON COMPOUND TO OLEFIN PRODUCTS

The present invention relates to a hydrocarbon conversion catalyst, comprising: a first composition comprising a dehydrogenation active metal on a solid support; and a second composition comprising a transition metal and a doping agent, wherein the doping agent is selected from zinc, gallium, indium, lanthanum, and mixtures thereof, on an inorganic support.

CATALYST, PREPARATION THEREOF AND METHOD FOR USING IT FOR MANUFACTURING VINYL ACETATE

PURPOSE: To produce a Pd/K/Au, Pd/K/Ba or Pd/K/Cd supported catalyst built up in the form of an outer layer and to use the catalyst for preparing vinyl acetate from ethylene, acetic acid and oxygen in the gaseous phase. CONSTITUTION: Support particles are impregnated with a solution of salts of the corresponding elements and then dried to produce the objective catalyst. The dynamic viscosity of the solution is at least 0.003 Pa.s and the solution volume in the impregnation is more than 80% of the pore volume of the support particles. The duration of the impregnation and also the time until commencement of the drying are selected so as to be sufficiently short for the metallic salts to be present in an outer layer of 5-80% of the pore volume of the support particles after completion of the drying.

СПОСОБ ПОЛУЧЕНИЯ ФЕНОЛА ПУТЕМ ГИДРОДЕОКСИГЕНАЦИИ ДИОКСИБЕНЗОЛОВ

Изобретение относится к способу получения фенола. Способ заключается в том, что в адиабатический реактор с неподвижным слоем катализатора подают поток водного раствора диоксибензола с концентрацией от 5 до 60 мас.% с объемной скоростью, выраженной в кг диоксибензола/ч/кг катализатора 0,1-10 ч-1 и поток водорода. Проводят реакцию гидродеоксигенации в паровой фазе при работе в непрерывном режиме в присутствии катализатора. Поток водного раствора диоксибензола и поток водорода подают в таком количестве, чтобы соотношение между общим количеством молей водорода и диоксибензола находилось в диапазоне от 2:1 до 50:1. Реакцию проводят при температуре в диапазоне от 250 до 500°С и давлении 0,1-10 МПа. Используемый катализатор представляет собой катализатор на носителе, содержащий элемент группы VIB, или их смесь, или элемент группы VIII периодической системы, или их смесь и промотор. Изобретение позволяет повысить степень превращения диоксибензола, селективность по отношению к фенолу и производительность ...

СПОСОБ СЕЛЕКТИВНОЙ ОКИСЛИТЕЛЬНОЙ ДЕГИДРОГЕНИЗАЦИИ ВОДОРОДСОДЕРЖАЩЕГО ГАЗА, СМЕШАННОГО С СО

Настоящее изобретение относится к способу селективной окислительной дегидрогенизации газовой смеси, содержащей водород и СО. Способ включает использование газовой смеси, содержащей водород и СО, в качестве сырья и пропускание указанного сырья через слой катализатора, имеющий постепенно увеличивающийся градиент активности в реакторе с мольным отношением кислорода к водороду в сырье от 0,5 до 5:1 при температуре реакции от 100 до 300°C, объемной скорости от 100 до 10000 чи давлении реакции от -0,08 до 5,0 МПа. При этом водород в стоке реакции окисляется до воды, причем слой катализатора расположен в реакторе со сложным слоем и содержит катализатор I и катализатор II, которые содержат по меньшей мере один активный компонент, выбранный из металлов платиновой группы и может произвольно содержать дополнительные легирующие металлы, такие как Ва, Fe, Zn, лантаниды, Li и/или Mn, причем количество активного компонента в катализаторе I меньше количества активного компонента в катализаторе II, и отношение ...

СПОСОБ ПОЛУЧЕНИЯ УЛУЧШЕННОЙ БИОНЕФТИ ИЗ ЧЕРНОГО ЩЕЛОКА

Настоящее изобретение касается способа получения улучшенной нефти, производимой из черного щелока, который поступает из целлюлозной/бумажной промышленности. Описан способ получения улучшенной бионефти, производимой из черного щелока, включающий следующие этапы, на которых: обеспечивают черный щелок, который поступает из целлюлозной и бумажной промышленности; осуществляют пиролиз черного щелока с образованием газообразного продукта пиролиза черного щелока и твердой массы, которая содержит уголь и соли; выполняют каталитическую конверсию упомянутого газообразного продукта пиролиза черного щелока путем взаимодействия, по меньшей мере, части последнего с биметаллическим модифицированным цеолитным катализатором, который модифицирован первым металлом и вторым металлом, с образованием улучшенной бионефти, которая содержит бензол, толуол, ксилол (БТК), нафталин и продукты, не являющиеся БТК, где при этом указанный первый металл является переходным металлом, выбранным из группы IIВ периодической ...

ГРУЗОВОЙ ОТСЕК ДЛЯ ЛЕТАТЕЛЬНОГО АППАРАТА ЛЕГЧЕ ВОЗДУХА (ВАРИАНТЫ)

Отсек имеет в своем составе грузонесущую структуру (20), прикрепленную к днищу детательного аппарата (ЛА), при этом структура простирается вдоль по крайней мере части продольной оси (12) ЛА и имеет множество галерей (40А-F), направлена вдоль поперечной оси (16) ЛА, структура приспособлена для одновременной выгрузки груза (34) с одного конца (42) и погрузки груза с противоположного конца (44). Система перемещения груза установлена в настиле каждой из галерей (40 А-F) для вдвигания груза (34) с одного конца, выдвигания с противоположного конца галереи и перемещения в промежуточные положения. Система закрепления груза установлена на настиле галереи для закрепления с возможностью перемещения груза внутри галереи и промежуточных положениях. Изобретение позволяет поддерживать постоянную нейтральную подъемную силу ЛА при погрузке и выгрузке, 2 с. и 18 з.п.ф-лы, 5 ил.

КАТАЛИЗАТОР ДЛЯ ДЕГИДРИРОВАНИЯ ИЗОПЕНТАНА И ИЗОПЕНТАНИЗОАМИЛЕНОВЫХ ФРАКЦИЙ И СПОСОБ ЕГО ПОЛУЧЕНИЯ

Изобретение относится к области органической химии и нефтехимии, в частности к разработке и использованию катализаторов. Описан катализатор для дегидрирования изопентана и изопентан-изоамиленовых фракций на основе платины и олова, нанесенных на носитель - алюмоцинковую шпинель, отличающийся тем, что носитель представляет собой нанокристаллические частицы со средним размером кристаллитов 22-35 нм при следующем содержании компонентов, мас.%: платина 0,05-2,0, олово 0,1-6,0, алюмоцинковая шпинель остальное. Также описан способ получения вышеуказанного катализатора, включающий измельчение и перемешивание кислородсодержащих соединений цинка и алюминия, постепенное добавление воды до получения однородной пастообразной массы, перемешивание и формирование, сушку гранул при комнатной температуре и прокаливание, последующую пропитку образовавшегося носителя водным раствором соединений платины и олова, окончательную сушку на воздухе катализаторной массы, отличающийся тем, что прокаливание носителя ...

СПОСОБ ДЕГИДРИРОВАНИЯ ИЗОПЕНТАНА И ИЗОПЕНТАН-ИЗОАМИЛЕНОВЫХ ФРАКЦИЙ

Изобретение относится к способу дегидрирования изопентана и изопентан-изоамиленовых фракций, проводимому при атмосферном давлении в среде водяного пара циклами дегидрирование-регенерация в стационарном слое катализатора на основе платины и олова, нанесенных на алюмоцинковую шпинель, характеризующемуся тем, что используют катализатор со средним размером кристаллитов 22-35 нм при следующем содержании компонентов, мас.%: платина - 0,05-2,0, олово - 0,1-6,0, алюмоцинковая шпинель - остальное, процесс дегидрирования осуществляют при температуре 560-620°С, объемной скорости подачи сырья 300-500 ч-1 в присутствии водорода и водяного пара, соотношение сырье:водород:пар составляет 1:0,5-2,0:5-20 моль:моль:моль. Применение данного способа позволяет более эффективно осуществлять дегидрирование изопентана и изопентан-изоамиленовых фракций. 2 з.п. ф-лы, 1 табл.

ЛЕГИРОВАННЫЙ ПЕРЕХОДНЫМ МЕТАЛЛОМ ОКСИД АЛЮМИНИЯ С УЛУЧШЕННОЙ КИСЛОРОД-АККУМУЛИРУЮЩЕЙ СПОСОБНОСТЬЮ (OSC) В ДВУХ УСЛОВИЯХ

Изобретение может быть использовано при обработке отработавшего газа, производимого двигателями внутреннего сгорания. Композиция тройного катализатора (TWC) содержит легированный переходным металлом оксид алюминия, в которой переходный металл представляет собой Mn, Fe, Cu или их комбинации. Композиция тройного катализатора дополнительно содержит материал с кислород-аккумулирующей способностью (OSC), который содержит смешанный оксид церия-циркония. Предложены также каталитическое изделие и способ очистки отработавшего газа. Группа изобретений позволяет повысить эффективность катализатора, снизив выбросы углеводородов и оксидов азота. 3 н. и 9 з.п. ф-лы, 2 ил., 2 табл., 2 пр.

КАТАЛИЗАТОР ПРОЦЕССА ОКИСЛИТЕЛЬНОЙ АРОМАТИЗАЦИИ НИЗШИХ АЛКАНОВ

FIELD: chemistry. SUBSTANCE: invention relates to catalysts of process of producing aromatic hydrocarbons from hydrocarbon material. Catalyst for oxidative aromatisation of lower alkanes contains, wt%: zinc oxide (with respect to metal) 3.00-7.00; gallium oxide (with respect to metal) 1.00-3.00; germanium oxide (with respect to metal) 0.01-0.10; platinum oxide (with respect to metal) 0.05-0.2; γ-aluminium oxide - 5.00-20.00; a pentasil-type zeolite in hydrogen form making up balance to 100. EFFECT: technical result consists in improvement of catalyst activity in relation to output of desired aromatic hydrocarbons. 1 cl, 1 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК B01J 29/44 B01J 21/04 B01J 23/60 B01J 23/62 C07C 15/02 (13) 2 603 775 C1 (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2015144092/04, 14.10.2015 (24) Дата начала отсчета срока действия патента: 14.10.2015 (73) Патентообладатель(и): Публичное акционерное общество "Газпром" (RU) (45) Опубликовано: 27.11.2016 Бюл. № 33 2 6 0 3 7 7 5 R U (54) КАТАЛИЗАТОР ПРОЦЕССА ОКИСЛИТЕЛЬНОЙ АРОМАТИЗАЦИИ НИЗШИХ АЛКАНОВ (57) Реферат: Изобретение относится к катализаторам пересчете на металл) 0,01-0,10; оксид платины (в процесса получения ароматических пересчете на металл) 0,05-0,2; γ-окись алюминия углеводородов из углеводородного сырья. 5,00-20,00; цеолит типа пентасила в водородной Катализатор окислительной ароматизации форме остальное до 100. Технический результат низших алканов содержит в мас.%: оксид цинка заключается в повышении активности (в пересчете на металл) 3,00-7,00; оксид галлия (в катализатора по отношению к выходу целевых пересчете на металл) 1,00-3,00; оксид германия (в ароматических углеводородов. 1 пр. Стр.: 1 C 1 C 1 Адрес для переписки: 117997, Москва, ГСП-7, ул. Наметкина, 16, ПАО "Газпром", начальнику Департамента О.Е. Аксютину 2 6 0 3 7 7 5 (56) Список документов, цитированных в отчете о ...

МНОГОСЛОЙНЫЙ КАТАЛИЗАТОР, ЕГО ПОЛУЧЕНИЕ И ИСПОЛЬЗОВАНИЕ В СИНТЕЗЕ ФИШЕРА-ТРОПША

... 1. Катализатор, включающий, предпочтительно, оксидный материал ядра, оболочку из оксида цинка вокруг указанного материала ядра и каталитически активный материал в оболочке, или на ней, на основе одного или большего числа металлов, таких как кобальт, железо, рутений и/или никель. 2. Катализатор по п.1, где указанный материал ядра выбирают из группы: оксид кремния, оксид алюминия, алюмосиликат, диоксид титана, диоксид циркония, Si-карбид, синтетические или натуральные глинистые материалы или комбинации двух или большего числа этих материалов. 3. Катализатор по п.1, где количество каталитически активного материала составляет от 5 до 50 мас.% в расчете на суммарную массу катализатора. 4. Катализатор по п.1, где оболочка из оксида цинка составляет от 1 до 30 мас.% в расчете на суммарную массу ядра и оболочки. 5. Катализатор по п.1, где площадь поверхности активного катализатора составляет менее 500 м2/г, предпочтительно в диапазоне 5-160 м2/г. 6. Способ получения катализатора, включающего кобальт ...

KATALYSATOR ZUR PARTIELLEN HYDRIERUNG

Katalysator zur Reinigung der Abgase von Verbrennungskraftmaschinen unter Verminderung der Emission von Schwefelwasserstoff, Herstellung und Verwendung.

Verfahren zur Herstellung von vorwiegend als Trans-Isomere vorhandenem Cyclohexandimethanol

POLYFUNKTIONELLE KATALYSATOREN UND VERFAHREN ZU IHRER ANWENDUNG

Trägerkatalysator, Verfahren zu seiner Herstellung, sowie seine Verwendung zur Herstellung von Vinylacetat.

"VERFAHREN ZUR HERSTELLUNG VON PYRROLEN"

Method for Producing 3,3,3-Trifluoro Propene

A production method of 3,3,3-trifluoropropene includes the step of hydrogenating 1-chloro-3,3,3-trifluoropropene with hydrogen (H 2 ) in a gas phase in the presence of either of: (A) a catalyst having carried on a carrier at least one kind of transition metal selected from the group consisting of ruthenium, nickel, rhodium, iridium, iron, osmium and cobalt, or an oxide of said transition metal; (B) an oxide catalyst of copper and manganese; and (C) a catalyst having carried on a carrier palladium and at least one kind of element selected from the group consisting of bismuth, zinc, copper, silver, lanthanum, lead, zirconium, niobium, hafnium, magnesium, tin and arsenic.

EXHAUST GAS PURIFYING CATALYST AND PRODUCTION METHOD FOR SAME

Disclosed is an exhaust gas purifying catalyst which includes barium hexaaluminate, and palladium and barium which are supported on barium hexaaluminate, wherein the amount of supported palladium, as reduced to metallic Pd, is 0.2 to 3.5 mass % with respect to the mass of barium hexaaluminate; the amount of supported barium, as reduced to BaO, is 1 to 20 mass % with respect to the mass of barium hexaaluminate; and the ratio by mole of supported barium to supported palladium, Ba/Pd, is (0.5 to 10)/1; an exhaust gas purifying catalyst product which has a catalyst support made of a ceramic or metallic material, and a layer which is formed of the exhaust gas purifying catalyst as a predominant component and which is supported on the catalyst support; and a method for producing the exhaust gas purifying catalyst product. 15-. (canceled)6. An exhaust gas purifying catalyst , characterized in that the catalyst comprises barium hexaaluminate , and palladium and barium which are supported on barium hexaaluminate , wherein the amount of supported palladium , as reduced to metallic Pd , is 0.2 to 3.5 mass % with respect to the mass of barium hexaaluminate; the amount of supported barium , as reduced to BaO , is 1 to 20 mass % with respect to the mass of barium hexaaluminate; and the ratio by mole of supported barium to supported palladium , Ba/Pd , is (0.5 to 10)/1.7. An exhaust gas purifying catalyst according to claim 6 , wherein the amount of supported palladium claim 6 , as reduced to metallic Pd claim 6 , is 1 to 3.5 mass % with respect to the mass of barium hexaaluminate; the amount of supported barium claim 6 , as reduced to BaO claim 6 , is 2 to 15 mass % with respect to the mass of barium hexaaluminate; and the ratio by mole of supported barium to supported palladium claim 6 , Ba/Pd claim 6 , is (2 to 4.5)/1.8. An exhaust gas purifying catalyst according to claim 6 , wherein the barium hexaaluminate is BaAlO(wherein x is 0.75 to 1 claim 6 , y is 10.9 to 12 claim 6 , ...

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.

IRIDIUM CATALYSTS FOR CARBONYLATION

A solid catalyst comprising an effective amount of iridium and at least one second metal selected from gallium, zinc, indium and germanium associated with a solid support material is useful for vapor phase carbonylation to produce carboxylic acids and esters from alkyl alcohols, esters, ethers or ester-alcohol mixtures. The iridium and at least one second metal are deposited on a support material. In some embodiments of the invention, the catalyst is useful for vapor phase carbonylation. 1. A carbonylation catalyst comprising an effective amount of iridium and at least one second metal selected from gallium , zinc , indium and germanium wherein the iridium and the at least one second metal are associated with a solid support material.2. The carbonylation catalyst according to wherein the solid support material is selected from pumice claim 1 , alumina claim 1 , silica claim 1 , silica-alumina claim 1 , magnesia claim 1 , diatomaceous earth claim 1 , bauxite claim 1 , titania claim 1 , zirconia claim 1 , clays claim 1 , magnesium silicate claim 1 , silicon carbide claim 1 , zeolites claim 1 , ceramics claim 1 , carbon and combinations of two or more of the foregoing.3. The carbonylation catalyst of wherein the solid support material comprises activated carbon.4. The carbonylation catalyst of wherein the catalyst includes from about 0.01 weight percent to about 10 weight percent each of the iridium and the at least one second metal.5. The carbonylation catalyst of wherein the catalyst includes from about 0.1 weight percent to about 3 weight percent each of the iridium and the at least one second metal.6. The carbonylation catalyst of wherein the molar ratio of the at least one second metal to iridium is from about 0.1:1 to about 10:1.7. The carbonylation catalyst of wherein the molar ratio of the at least one second metal to iridium is from about 0.5:1 to about 5:1.8. The carbonylation catalyst of claim 1 , further comprising at least one vaporous halogen promoting ...

CATALYST COMPRISING PHYSICALLY AND CHEMICALLY BLOCKED ACTIVE PARTICLES ON A SUPPORT

The invention relates to a catalyst comprising: a) a catalyst support made of a ceramic, the support comprising an arrangement of crystallites having the same size, the same isodiametric morphology and the same chemical composition or substantially the same size, the same isodiametric morphology and the same chemical composition, in which each crystallite makes point contact or almost point contact with the surrounding crystallites; and b) at least one active phase comprising metallic particles that interact chemically with said catalyst support made of a ceramic and that are mechanically anchored to said catalyst support in such a way that the coalescence and mobility of each particle are limited to a maximum volume corresponding to that of a crystallite of said catalyst support. 112-. (canceled)13. A catalyst comprising:a) a ceramic catalyst support comprising an arrangement of crystallites of the same size, same isodiametric morphology, and same chemical composition or substantially the same size, same isodiametric morphology, and same chemical composition, in which each crystallite is in point or quasi point contact with its surrounding crystallites, andb) at least one active phase comprising metal particles exhibiting chemical interactions with said ceramic catalyst support and mechanical anchoring in said catalyst support such that the coalescence and the mobility of each particle is limited to a maximum volume corresponding to that of one crystallite in said catalyst support.14. The catalyst of claim 13 , wherein the chemical interaction is selected from electronic interactions and/or epitaxial interactions and/or partial encapsulation interactions.15. The catalyst of claim 13 , wherein said arrangement is in spinel phase.16. The catalyst of claim 13 , wherein the metal particles are selected from rhodium claim 13 , platinum claim 13 , palladium and/or nickel.17. The catalyst of claim 13 , wherein the crystallites have an average equivalent diameter of ...

BIOTEMPLATED PEROVSKITE NANOMATERIALS

A biotemplated nanomaterial can include a crystalline perovskite. 1. A method of making a nanomaterial comprising forming a perovskite in the presence of a biotemplate having affinity for a metal ion.2. The method of claim 1 , wherein the biotemplate includes a virus particle.3. The method of claim 2 , wherein the virus particle is an M13 bacteriophage.4. The method of claim 1 , wherein forming the perovskite includes forming an aqueous mixture including the biotemplate claim 1 , a first inorganic ion claim 1 , and a second inorganic ion.5. The method of claim 4 , further comprising forming an ion source including the first inorganic ion and the second inorganic ion before forming the aqueous mixture.6. The method of claim 4 , further comprising adjusting the pH of the aqueous mixture and incubating the aqueous mixture for a predetermined time at a predetermined temperature.7. The method of claim 4 , further comprising calcining the reaction products after incubating the aqueous mixture.8. The method of claim 1 , wherein the perovskite has the formula (I):{'br': None, 'sub': x', '1-x', 'y', '1-y', '3±δ, 'AA′BB′O\u2003\u2003(I)'}whereineach of A and A′, independently, is a rare earth, alkaline earth metal, or alkali metal;each of B and B′, independently, is a transition metal;x is in the range of 0 to 1;y is in the range of 0 to 1; andδ is in the range of 0 to 1.9. The method of claim 8 , wherein A and A′ claim 8 , independently claim 8 , are selected from the group consisting of Mg claim 8 , Ca claim 8 , Sr claim 8 , Ba claim 8 , Pb claim 8 , and Bi; and B and B′ claim 8 , independently claim 8 , are selected from the group consisting of Ti claim 8 , Zr claim 8 , V claim 8 , Nb claim 8 , Mn claim 8 , Fe claim 8 , Ru claim 8 , Co claim 8 , Rh claim 8 , Ni claim 8 , Pd claim 8 , Pt claim 8 , Al claim 8 , and Mg.10. The method of claim 8 , wherein the perovskite is a strontium titanate.11. The method of claim 8 , wherein the perovskite is a bismuth ferrite.12. The ...

Catalyst Comprising Active Particles Physically Pinned to the Support

Catalyst comprising: a) a catalytic ceramic support comprising an arrangement of crystallites of the same size, same isodiametric morphology and same chemical composition or substantially of the same size, same isodiametric morphology and same chemical composition in which each crystallite is in point contact or virtually point contact with crystallites that surround it, and b) at least one active phase comprising metallic particles mechanically anchored into said catalytic support so that the coalescence and the mobility of each particle are limited to a volume corresponding to that of a crystallite of said catalytic ceramic support. 110-. (canceled)11. A catalyst comprising:a) a ceramic catalyst support comprising an arrangement of crystallites of the same size, same isodiametric morphology, and same chemical composition or substantially the same size, same isodiametric morphology, and same chemical composition, in which each crystallite is in point or quasi-point contact with its surrounding crystallites, andb) at least one active phase comprising metal particles anchored mechanically in said catalyst support such that the coalescence and mobility of each particle are limited to a maximum volume corresponding to that of one crystallite of said ceramic catalyst support.12. The catalyst of claim 11 , wherein said arrangement is in spinel phase.13. The catalyst of claim 11 , wherein the metal particles are selected from rhodium claim 11 , platinum claim 11 , palladium and/or nickel.14. The catalyst of claim 11 , wherein the crystallites have an average equivalent diameter of between 5 and 15 nm claim 11 , preferably between 11 and 14 nm claim 11 , and the metal particles have an average equivalent diameter of between 2 and 10 nm claim 11 , preferably less than 5 nm.15. The catalyst of claim 11 , wherein the arrangement of crystallites is a face-centered cubic or close-packed hexagonal stack in which each crystallite is in point or quasi-point contact with not more ...

EXCESS ENTHALPY UPON PRESSURIZATION OF DISPERSED PALLADIUM WITH HYDROGEN OR DEUTERIUM

Disclosed herein is a method for producing excess enthalpy by (a) either dispersing atomic metal ions or clusters on a support and reacting the metal ions with a chelating ligand or dispersing chelated atomic metal ions on a support and (b) pressurizing with hydrogen or deuterium to reduce the metal ion to a metal atom resulting in the growth of dispersed metal particles less than 2 nm in diameter on the support. During the particle growth, there is a growth period during which a critical particle size is reached and excess enthalpy is produced. The growth period is typically several days long 1. A method for producing excess enthalpy , comprising:dispersing atomic metal ions or clusters in or on a support;reacting said supported metal ions or clusters with a chelating ligand; andpressurizing with hydrogen or deuterium to reduce the metal ion to a metal atom resulting in the growth of dispersed metal particles less than 2 nm in diameter in or on the support;wherein during the particle growth there is a growth period during which a critical particle size is reached, wherein during the growth period excess enthalpy is produced, and wherein the growth period is at least one hour.2. The method of claim 1 , wherein the metal comprises palladium.3. The method of claim 1 , wherein the chelating ligand comprises nitrite.4. The method of claim 1 , wherein the excess enthalpy can provide useful work.5. The method of claim 1 , additionally comprising providing alkaline earth ions.6. The method of wherein the alkaline earth ions comprise calcium claim 5 , barium claim 5 , or a combination thereof.7. A method for producing excess enthalpy claim 5 , comprising:preparing a chelating atomic metal ion or cluster;dispersing said chelated atomic metal ion or cluster in or on a support; andpressurizing with hydrogen or deuterium to reduce the metal ion to a metal atom resulting in the growth of dispersed metal particles less than 2 nm in diameter in or on the support;wherein during the ...

THIORESISTANT CATALYST, MANUFACTURING PROCESS AND USE IN SELECTIVE HYDROGENATION

The invention concerns a thioresistant catalyst which comprises an active phase deposited on a support, said active phase comprising at least one noble metal from group VIIIB and at least one metallic oxide from group IB or from group IIB, said support being selected from the group formed by refractory oxides, coal, clays, silica-alumina and/or their mixtures, and said support having a specific surface area in the range 110 to 300 m/g. The invention also concerns the process for the preparation of said catalysts and their uses in the selective hydrogenation of hydrocarbons comprising acetylenic, dienic and/or alkenylaromatic functions. The invention is applicable to the refining field, and more particularly to the treatment of gasolines obtained by steam cracking (pyrolysis gasoline). 1. A thioresistant catalyst comprising an active phase deposited on a support , said active phase comprising at least one noble metal from group VIIIB and at least 2% to 50% by weight of a metallic oxide from group IB or from group IIB with respect to the total catalyst weight , said support being selected from the group formed by refractory oxides , coal , clays , silica-alumina and/or their mixtures , and said support having a specific surface area in the range 110 to 300 m/g.2. A catalyst according to claim 1 , in which the quantity by weight of metallic oxide from group IB or IIB with respect to the total mass of the final supported catalyst is preferably in the range 2.1% to 45% by weight claim 1 , and more preferably in the range 2.5% to 30% by weight.3. A catalyst according to claim 1 , in which the metallic oxide from group IB or IIB is preferably selected from the group formed by copper oxide claim 1 , zinc oxide and cadmium oxide.4. A catalyst according to claim 1 , in which the quantity by weight of noble metal from group VIIIB with respect to the total mass of the final supported catalyst is in the range 0.01% to 2% by weight claim 1 , preferably in the range 0.05% to 1% by ...

Porous semiconductor metal oxide complex nanofibers including nanoparticle catalyst functionalized by nano-catalyst included within metal-organic framework, gas sensor and member using the same, and method of manufacturing the same

The inventive concepts relate to a member for a gas sensor, a gas sensor using the same, and a method of manufacturing the same. More particularly, the inventive concepts relate to a gas sensor member using a porous semiconductor metal oxide complex nanofiber functionalized by uniformly distributing porous first metal oxide particles, including metal nanoparticle catalysts synthesized using a metal-organic framework, in the inside and on a surface of a second metal oxide nanofiber, a gas sensor using the same, and a method of manufacturing the same.

PHOTOCATALYTIC DEGRADATION OF SUGAR

Systems having at least one photonic antenna molecule and at least one catalyst for degrading a sugar to degradation products using light energy are disclosed. Also disclosed are the devices and methods that use the systems for photocatalytically degrading a sugar into degradation products. 1. A system for photocatalytically degrading a sugar , the system comprising:at least one photonic antenna molecule; andat least one catalyst;wherein the photonic antenna molecule is capable of collecting a light energy and transferring the light energy to the catalyst; andwherein the catalyst is capable of degrading the sugar to produce at least one degradation product.2. The system of claim 1 , wherein the photonic antenna molecule is selected from the group consisting of 5-hydroxytryptamine claim 1 , an acridine claim 1 , an Alexa Fluor® dye claim 1 , an ATTO dye claim 1 , a BODIPY® dye claim 1 , Coumarin 6 claim 1 , a CY dye claim 1 , DAPI claim 1 , an ethidium compound claim 1 , a Hoechst dye claim 1 , Oregon Green claim 1 , rhodamine claim 1 , a compound comprising Ru(bpy) claim 1 , a compound comprising (Pt(pop)) claim 1 , a YOYO dye claim 1 , and a SeTau dye.3. The system of claim 1 , wherein the photonic antenna molecule is fluorescein.4. The system of claim 1 , wherein the catalyst is a metal nanoparticle.5. The system of claim 4 , wherein the metal nanoparticle comprises a metal selected from the group consisting of ruthenium claim 4 , palladium claim 4 , gold claim 4 , silver claim 4 , nickel claim 4 , tungsten claim 4 , molybdenum claim 4 , gallium claim 4 , iridium claim 4 , rhodium claim 4 , osmium claim 4 , copper claim 4 , cobalt claim 4 , iron claim 4 , and platinum claim 4 , or a mixture thereof.6. The system of claim 4 , wherein the metal nanoparticle comprises a lanthanide.7. The system of claim 4 , wherein the metal nanoparticle comprises a metal selected from the group consisting of platinum claim 4 , nickel claim 4 , and europium.8. The system of claim 5 , ...

CORE-SHELL NANOPARTICULATE COMPOSITIONS AND METHODS

Core-shell nanoparticulate compositions and methods for making the same are disclosed. In some embodiments core-shell nanoparticulate compositions comprise transition metal core encapsulated by metal oxide shell. Methods of catalysis comprising core-shell nanoparticulate compositions of the invention are disclosed. Compositions comprising core-shell nanoparticles displayed on a metal-oxide support and methods for preparing the same are also disclosed. In some embodiments compositions comprise core-shell nanoparticles displayed as a substantially single layer superposed on a metal oxide support. Methods of catalysis employing the supported core-shell nanoparticles are disclosed. 1. A core-shell nanoparticulate composition comprising late-transition-metal core encapsulated by metal oxide shell , said shell comprising CeO , HfO , TiO , ZnO , ZrO , or a combination thereof.2. The composition of claim 1 , the late-transition-metal core comprising Pd or Pt.3. A core-shell nanoparticulate composition comprising a late-transition-metal core encapsulated by metal oxide shell comprising at least one oxide of a metal of Group 3 claim 1 , 4 claim 1 , or 5.4. The composition of claim 3 , wherein the late-transition-metal core contains no more than 50 wt % Pd relative to the weight of the entire core.5. The composition of claim 3 , the late-transition-metal core comprising Pt.6. The composition of claim 3 , the metal oxide shell comprising CeO claim 3 , HfO claim 3 , TiO claim 3 , ZrO claim 3 , or a combination thereof.7. The composition of claim 3 , the transition metal core having a diameter in a range of about 1 nm to about 10 nm.8. A composition comprising a plurality of core-shell nanoparticles of the composition of claim 3 , said nanoparticles displayed on a metal oxide support claim 3 , the core-shell nanoparticles comprising a Pt core encapsulated by a metal oxide shell.9. The composition of claim 8 , the metal oxide shell comprising CeO claim 8 , HfO claim 8 , TiO claim ...

COMPOSITION OF PHOTOCATALYST AND METHOD OF USING THE SAME FOR DEGRADATION OF FUEL WASTE IN CONTAMINATED WATER

The present disclosure relates to a novel photocatalyst composition and a process of using the photocatalyst for the photocatalytic degradation of methyl tertiary-butyl ether (MTBE) in water. Palladium doped nano zinc oxide photocatalyst was prepared by zinc nitrate hexahydrate and an ammonium carbonate and the photocatalyst composition demonstrated more than 90-99% degradation of MTBE at room temperatures in a photo catalytic reaction conducted in an oxygen saturated aqueous medium. 1. A method comprising;mixing a zinc nitrate hexahydrate and an ammonium carbonate in a water;separating a zinc oxide (ZnO) precipitate formed by centrifugation;washing the zinc oxide precipitate with deionized water followed by washing with ethanol;drying the zinc oxide precipitate overnight; andcalcining the zinc oxide precipitate to obtain nano zinc oxide particles2. The method of further comprising:{'sub': 3', '2', '2, 'dissolving a pre-determined amount of a palladium (II) nitrate dehydrate (Pd(NO).2HO) in a deionized water to form a palladium impregnated nano ZnO;'}drying the palladium impregnated nano ZnO overnight;exposing the palladium impregnated nano ZnO to ammonia vapors for a specific period of time;mixing and drying the palladium impregnated nano ZnO overnight; and calcining the dried palladium impregnated nano ZnO to obtain palladium doped nano zinc oxide photocatalyst.3. The method of claim 2 , wherein the pre-determined amount of Pd is in the range of 0.5% to 1.5%.4. The method of claim 2 , wherein the pre-determined amount of Pd is 0.5 wt % of Pd.5. The method of claim 2 , wherein the pre-determined amount of Pd is 1.0 wt % of Pd.6. The method of claim 2 , wherein the pre-determined amount of Pd is 1.5 wt % of Pd.7. The method of claim 1 , wherein zinc nitrate hexahydrate and ammonium carbonate is mixed at 37° C.8. The method of claim 1 , wherein calcination is carried at 500° C. for 6 hours at a heating rate of 1° C./min.9. The method of claim 2 , wherein the ...

Ammonia Decomposition Catalyst Systems

Disclosed are ruthenium-based catalyst systems, hafnium-based catalyst systems, and yttrium-based catalyst systems for use in ammonia decomposition. Catalyst systems include ruthenium, hafnium, and/or yttrium optionally in combination with one or more additional metals that can be catalytic or catalyst promoters. Hafnium-based and yttrium-based catalyst systems can be free of ruthenium. The catalyst systems also include a support material. Disclosed catalyst systems can decompose ammonia at relatively low temperatures and can provide an efficient and cost-effective route to utilization of ammonia as a carbon-free hydrogen storage and generation material. 1. An ammonia decomposition reactor comprising:an ammonia inlet;an ammonia decomposition catalyst system downstream of the ammonia inlet, the ammonia decomposition catalyst system comprising a support material and a catalyst component, the catalyst component comprising ruthenium and at least one additional metal that catalyzes and/or promotes ammonia decomposition;a hydrogen outlet downstream of the ammonia decomposition catalyst system; anda nitrogen outlet downstream of the ammonia decomposition catalyst system.2. The ammonia decomposition reactor of claim 1 , the catalyst system comprising the ruthenium in an amount of about 4 wt. % or less.3. The ammonia decomposition reactor of claim 1 , wherein the additional metal comprises an alkali metal claim 1 , an alkaline earth metal claim 1 , a transition metal claim 1 , a metalloid claim 1 , a post transition metal claim 1 , or any combination thereof.4. The ammonia decomposition reactor of claim 1 , wherein the additional metal comprises potassium claim 1 , sodium claim 1 , magnesium claim 1 , calcium claim 1 , strontium claim 1 , scandium claim 1 , yttrium claim 1 , titanium claim 1 , zirconium claim 1 , hafnium claim 1 , vanadium claim 1 , niobium claim 1 , tantalum claim 1 , chromium claim 1 , molybdenum claim 1 , tungsten claim 1 , manganese claim 1 , rhenium ...

MULTIMETALLIC CATALYSTS

A multimetallic catalyst having a substrate, promoter and catalytic metal. 1. A catalyst for n-butane dehydrogenation comprising:a substrate surface consisting essentially of an oxide;{'sub': 'x', 'a promoter consisting essentially of MOwhere M is a transition metal or main group elemental oxide, the promoter deposited on the substrate;'}a catalytic metal consisting essentially of a platinum group metal promoter.2. The catalyst of claim 1 , wherein the catalyst exhibits at least 10-60% selectivity for 1 claim 1 ,3 butadiene.3. The catalyst of claim 1 , wherein the catalyst exhibits 40-99% 1 claim 1 ,3-butadiene conversion.4. The catalyst of claim 1 , further comprising a dopant.5. The catalyst of claim 4 , wherein the dopant is boron.6. The catalyst of claim 1 , wherein the dopant is selected from the group consisting of a group 13 element claim 1 , group 1 cation and group 2 cation.7. The catalyst of claim 1 , wherein the substrate comprises an oxide of a material selected from the group consisting of Si claim 1 , Al claim 1 , Ti claim 1 , and Zn.8. The catalyst of claim 7 , wherein M is a transition metal.9. A method of forming 1 claim 7 ,3 butadiene comprising:{'sub': x', 'y, 'exposing n-butane to a catalyst comprising M′/M/EOwhere the catalyst M′ is a Pt group metal, M is a transition metal or a main group element material and E is Si, Al, Ti, or Zr and x and y represent stoichiometric amounts; forming 1,3 butadiene.'}10. The method of wherein forming the 1 claim 9 ,3 butadiene comprises a selectivity for 1 claim 9 ,3 butadiene of 10-60%.11. The method of claim 9 , wherein exposing the n-butane is at a temperature of between 250° C. and 650° C.12. The method of claim 11 , where the temperature is 500° C. to 600° C.13. The method of claim 9 , wherein exposing the n-butane comprises exposing the n-butane to at least 3.6 mg of catalyst.14. The method of claim 13 , wherein exposing the n-butane comprises exposing the n-butane to at least 13 mg of catalyst.15. The ...

CATALYSTS AND PROCESSES FOR PRODUCING BUTANOL

In one embodiment, the invention is to a process for producing a catalyst composition for converting ethanol to higher alcohols, such as butanol. The process comprises contacting magnesium carbonate with one or more metal precursors to form a catalyst intermediate and calcining the catalyst intermediate to form the catalyst composition that comprises the one or more metals and magnesium oxide. The one or more metal precursors comprises one or more metal selected from the group consists of nickel, palladium, platinum, germanium, copper, ruthenium, gallium, tin, iridium, and mixtures thereof. 1. A process for producing a catalyst composition for converting ethanol to butanol , the process comprising:contacting magnesium carbonate with one or more metal precursors, wherein the one or more metal precursors comprise one or more metals selected from the group consisting of nickel, palladium, platinum, germanium, copper, ruthenium, gallium, tin, iridium and mixtures thereof to form a catalyst intermediate; andcalcining the catalyst intermediate to faun the catalyst composition comprises the one or more metals and magnesium oxide.2. The process of claim 1 , wherein at least one of the one or more metal precursors is coated on a surface of the magnesium carbonate.3. The process of claim 1 , wherein at least one of the one or more metal precursors is intimately contacted with magnesium carbonate.4. The process of claim 1 , further comprising mixing the one or more metal precursors prior to the contacting step.5. The process of claim 1 , wherein the one or more metal precursors are selected from the group consisting of metal citrate claim 1 , metal carboxylate claim 1 , metal acetate claim 1 , metal oxalate claim 1 , and metal acetylacetonate.6. The process of claim 1 , wherein the contacting step comprises impregnating the magnesium carbonate with at least one of the one or more metal precursors.7. The process of claim 1 , wherein the calcining step is a temperature from 300° ...

DEVICE USEFUL FOR HYDROGENATION REACTIONS (III)

The present invention relates to a device for treatment of material transported through the device comprising at least one porous element consisting of specific solid metallic structure which allows cross-flow of the material through the porous element and wherein the porous element is coated by a non-acidic metal oxide which is impregnated by palladium (Pd). 1. A device for treatment of material transported through the device comprising at least one porous element consisting of specific solid metallic structure which allows cross-flow of the material through the porous element and wherein the porous element is made from a metal alloy comprising(i) 55 wt-%—80 wt-%, based on the total weight of the metal alloy, of Co, and(ii) 20 wt-%—40 wt-%, based on the total weight of the metal alloy, of Cr, and(iii) 2 wt-%—10 wt-%, based on the total weight of the metal alloy, of Mo, andwherein the porous element is coated by a non-acidic metal oxide and which is impregnated by palladium (Pd).2. Device according to claim 1 , wherein the metal alloy comprises further metals chosen from the group consisting of Cu claim 1 , Fe claim 1 , Ni claim 1 , Mn claim 1 , Si claim 1 , Ti claim 1 , Al and Nb.3. Device according to claim 1 , wherein the metal alloy comprises(i) 55 wt-%—70 wt-%, based on the total weight of the metal alloy, of Co, and(ii) 20 wt-%—35 wt-%, based on the total weight of the metal alloy, of Cr, and(i) 4 wt-%—10 wt-%, based on the total weight of the metal alloy, of Mo.4. Device according to claim 1 , wherein the non-acidic metal oxide layer claim 1 , which coats the at least one porous element claim 1 , is basic or amphoteric.5. Device according to claim 1 , wherein the non-acidic oxide layer comprise ZnO and optionally at least one further metal oxide wherein the metal is chosen from the group consisting of Cr claim 1 , Mn claim 1 , Mg claim 1 , Cu and Al.6. Device according to claim 1 , wherein the non-acidic metal oxide layer comprises ZnO and AlO.7. Device ...

NOx STORAGE AND REDUCTION CATALYST, PREPARATION METHOD, AND NOx REMOVING SYSTEM

A catalyst for NOx storage and reduction may include a carrier that contains alkali metal and Al, or alkali earth metal and Al, a NOx storage element of alkali metal, alkali earth metal or rare earth element, and one or more noble metals that are selected from the group consisting of Pt, Pd, Ru, Ag, Au and Rh. The catalyst for NOx storage and reduction shows excellent NOx storage and reduction capability, maintains excellent storage and reduction capability especially before and after deterioration and sulfation, and shows excellent catalytic activity under low temperature environment, while maintaining unusually high hydrophobicity. 1. A catalyst for NOx storage and reduction comprising:a carrier including alkali metal and Al, or alkali earth metal and Al;a NOx storage element of alkali metal, alkali earth metal or rare earth element; andone or more noble metals that are selected from the group consisting of Pt, Pd, Ru, Ag, Au and Rh.2. The catalyst for NOx storage and reduction of claim 1 , wherein:the carrier that includes the alkali metal and Al or the alkali earth metal and Al is a carrier that includes Li and Al or a carrier that includes Mg and Al.3. The catalyst for NOx storage and reduction of claim 1 , wherein:the NOx storage element includes one or more storage elements that are selected from the group consisting of K, Ba, Na, Sr, Mg and Ca.4. The catalyst for NOx storage and reduction of claim 1 , wherein: {'br': None, 'sub': 2', '6', '2', '2, '[Z—Al(OH)]X.yHO(LiAl-X)]'}, 'the carrier has a structure of layered double hydroxides that is represented by the following Formula{'sup': 3−', '2−', '2−, 'sub': 3', '4, 'wherein, Z is Li, Na, K, Rb, Cs, Fr, Be, Mg, Ca, Sr, Ba, or Ra, X is Cl—, Br—, NO, COor SO, and y is a rational number in the range of 0.5 to 4.'}5. The catalyst for NOx storage and reduction of claim 1 , wherein:the content of the carrier is 65 to 95 wt % of the total catalyst weight, the content of the NOx storage element is 4.5 to 35 wt %, and ...

Processes for Producing Fluorided Solid Oxides and Uses Thereof in Metallocene-Based Catalyst Systems

Disclosed herein are methods for preparing fluorided solid oxides by contacting an acidic fluorine-containing compound with an inorganic base to form an aqueous mixture having a pH of at least 4, followed by contacting a solid oxide with the aqueous mixture to produce the fluorided solid oxide. Also disclosed are methods for preparing fluorided solid oxides by contacting an acidic fluorine-containing compound with a solid oxide to produce a mixture, followed by contacting the mixture with a inorganic base to produce the fluorided solid oxide at a pH of at least about 4. The fluorided solid oxide can be used as an activator component in a catalyst system for the polymerization of olefins. 1. A process to produce a fluorided solid oxide , the process comprising:(a) contacting an acidic fluorine-containing compound and an inorganic base to produce an aqueous mixture having a pH of at least about 4; and(b) contacting a solid oxide with the aqueous mixture to produce the fluorided solid oxide.2. The process of claim 1 , wherein:the acidic fluorine-containing compound and the inorganic base are contacted at a ratio of acid:base equivalents in a range from about 1:1 to about 1:2; andthe acidic fluorine-containing compound is contacted first with water, and then the inorganic base, to produce the aqueous mixture in step (a), or the inorganic base is contacted first with water, and then the acidic fluorine-containing compound, to produce the aqueous mixture in step (a).3. The process of claim 1 , wherein:a metal-containing compound is contacted with the acidic fluorine-containing compound and the inorganic base in step (a); andthe fluorided solid oxide contains from about 0.5 to about 10 wt. % of the metal of the metal-containing compound, based on the weight of the fluorided solid oxide.4. The process of claim 1 , wherein the inorganic base comprises a zinc-containing inorganic base claim 1 , an aluminum-containing inorganic base claim 1 , an iron-containing inorganic base ...

CATALYSTS WITH ATOMICALLY DISPERSED PLATINUM GROUP METAL COMPLEXES AND A BARRIER DISPOSED BETWEEN THE COMPLEXES

A catalytic converter includes a catalyst. The catalyst includes a metal oxide support and platinum group metal (PGM) complexes atomically dispersed on the metal oxide support. The PGM complexes include a PGM species selected from the group consisting of an atom of a platinum group metal, a cluster including from 2 atoms to less than 10 atoms of the platinum group metal, a nanoparticle including 10 or more atoms of the platinum group metal, and combinations thereof. An alkali metal or an alkaline earth metal is bonded to the PGM species. The alkali or alkaline earth metal is part of a structure including oxygen atoms and hydrogen atoms. A barrier is disposed between a first PGM complex and a second PGM complex. 1. A catalytic converter , comprising: a metal oxide support;', a PGM species being selected from the group consisting of an atom of a platinum group metal, a cluster including from 2 atoms to less than 10 atoms of the platinum group metal, a nanoparticle including 10 or more atoms of the platinum group metal, and combinations thereof; and', 'a stabilizing structure bonded to the PGM species, the stabilizing structure comprising an alkali metal or an alkaline earth metal, an oxygen atom, and a hydrogen atom; and, 'platinum group metal (PGM) complexes atomically dispersed on the metal oxide support, the PGM complexes including, 'a barrier disposed between a first PGM complex and a second PGM complex., 'a catalyst including2. The catalytic converter as defined in wherein a mole ratio of the PGM species to the alkali metal or the alkaline earth metal ranges from 1:3 to 1:10.3. The catalytic converter as defined in wherein the metal oxide support is selected from the group consisting of AlO claim 1 , CeO claim 1 , ZrO claim 1 , CeO—ZrO claim 1 , SiO claim 1 , TiO claim 1 , ZnO claim 1 , LaFeO claim 1 , LaFeO claim 1 , LaAlO claim 1 , Sr-promoted LaFeO claim 1 , Ce-promoted LaFeO claim 1 , LaMnO claim 1 , or LaCoO claim 1 , zeolites claim 1 , and combinations ...

METHOD FOR PURIFYING EXHAUST GAS

Provided is a method for purifying exhaust gas discharged from an internal combustion engine of a vehicle, using an exhaust gas purifying catalyst including a composite oxide represented by the following general formula AO.x(BCO), wherein A represents an element selected from monovalent elements, divalent elements and lanthanides; B represents a trivalent element; and C represents a noble metal; x represents an integer of 1; y represents an atomic ratio satisfying the following relation: 0 Подробнее

CATALYTIC COMBUSTION IN LOW TEMPERATURE, HUMID CONDITIONS

Methods are disclosed for achieving the catalytic combustion of a gaseous species in low temperature humid environments. The methods comprise the steps of obtaining a combustion catalyst composition comprising an amount of a precious metal supported on an ion-exchangeable alkali metal titanate substrate, and then exposing the species to the combustion catalyst composition in the presence of an oxygen containing gas and water vapour at a catalysis temperature below 200° C. and at a relative humidity above 0.5%. A novel desiccant-coupled catalytic combustion process and system are also disclosed. 1. A method for the catalytic combustion of a gaseous species comprising:obtaining a combustion catalyst composition comprising an amount of a precious metal supported on an ion-exchangeable alkali metal titanate substrate; andexposing the species to the combustion catalyst composition in the presence of an oxygen containing gas and water vapour at a catalysis temperature below 200° C. and at a relative humidity above 0.5%,whereby the species is combusted with the oxygen at the combustion catalyst composition.2. The method of wherein the obtaining a combustion catalyst composition step comprises:obtaining an ion-exchangeable alkali metal titanate; andion exchanging the alkali metal titanate with the amount of the precious metal.3. The method of wherein the gaseous species is an unsaturated hydrocarbon claim 1 , an aldehyde claim 1 , or carbon monoxide.4. The method of wherein the gaseous species is ethylene claim 3 , formaldehyde claim 3 , or carbon monoxide.5. The method of wherein the gaseous species comprises ethylene.6. The method of comprising preparing the alkali metal titanate by the hydrothermal treatment of a mixture comprising an alkali metal hydroxide and a source of titania.7. The method of wherein the alkali metal titanate is sodium titanate.8. The method of wherein the alkali metal titanate has an ion exchange capacity greater than 2 meq/g.9. The method of ...

CHELATE-CONTROLLED DIASTEREOSELECTIVE HYDROGENATION WITH HETEROGENEOUS CATALYST

A catalyst, method of using, and use of a hydrogenation catalyst, preferably palladium on a support, preferably alumina or activated charcoal support. This in the presence of lithium salts, with salts such as the borates being preferred. This provides hydrogenation of precursors to give rise to a stereoselective, such as diastereoselective bias in the product of alkene hydrogenation using the catalyst. 2. The method of claim 1 , wherein more than 52% meso isomer is produced.3. The method of claim 1 , wherein more than 56% meso isomer is produced.4. The method of claim 1 , wherein the substrate is 2 claim 1 ,2-di(2-furyl)propane and the hydrogenation product is 2 claim 1 ,2′-di(2-tetrahydrofuryl)propane.5. The method of claim 1 , wherein the metal hydrogenation catalyst is selected from the group consisting of platinum claim 1 , palladium claim 1 , ruthenium claim 1 , rhodium and nickel.6. The catalyst composition of claim 5 , wherein the catalyst is palladium.7. The method of claim 1 , wherein the support is selected from the group consisting of carbon claim 1 , alumina claim 1 , silica claim 1 , titanium dioxide claim 1 , calcium carbonate claim 1 , lithium aluminate and barium sulfate.8. The method of claim 7 , wherein the support is selected from the group consisting of carbon and alumina.9. The method of claim 1 , wherein the lithium salt is selected from the group consisting of an organo-carboxylate claim 1 , an organo-sulfate claim 1 , aluminate claim 1 , hydroxide claim 1 , chloride claim 1 , bromide claim 1 , carbonate claim 1 , hydroxide claim 1 , borate and a mixture thereof.10. The method of claim 9 , wherein the lithium salt is selected from the group consisting of lithium tetraborate claim 9 , lithium metaborate claim 9 , and hydrates thereof.11. The method of wherein the method is performed in the presence of a solvent selected from the group consisting of heptane claim 1 , MTBE claim 1 , THF claim 1 , ethyl acetate claim 1 , methanol claim 1 , ethanol ...

Preparation process of nanocatalysts with (111) crystal facet exposed and process for vapour-phase co oxidative coupling to oxalate

The invention belongs to the technical field of preparing oxalate in coal to ethylene glycol, aiming at providing a preparation process for nanocatalysts with (111) crystal facet exposed and a process for vapour-phase CO oxidative coupling to oxalate. The nanocatalysts with (111) crystal facet exposed comprise carrier, active component and promoter on the carrier, wherein, in term of the weight of the carrier, the active component accounts for 0.05-2% of the weight of the carrier, the weight percentage of metal elements in the promoter is 20% or less. The nanocatalysts with (111) crystal facet exposed are prepared by the nanometals in situ supporting process. The preparation process is simple in procedure, has low energy consumption and can precisely control the size and exposed crystal facet of the active component nanoparticles. The obtained nanocatalysts with (111) crystal facet exposed are highly active for vapour-phase CO oxidative coupling to oxalate at a lower loading of noble metal.

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 ...

Dielectric packing material for conversion of carbon dioxide to valuable materials by non-thermal plasma technology

The present invention relates to a dielectric packing material for converting carbon dioxide to a valuable material using non-thermal plasma technology, and more particularly, to a dielectric packing material for converting carbon dioxide to a valuable material using non-thermal plasma technology, wherein the dielectric packing material is packed in a non-thermal plasma reactor for conversion of carbon dioxide to a valuable material and is formed to have a hollow structure with multiple edges on the surface thereof to effectively scatter non-thermal plasma at the edges and thereby to improve CO2 conversion and energy efficiency.

Process for producing hydrofluoroolefin

A method for producing a hydrofluoroolefin is provided. The formation of by-products of an over-reduced product having hydrogen added to a material chlorofluoroolefin and an over-reduced product having not only chlorine atoms but also fluorine atoms in the chlorofluoroolefin replaced with hydrogen atoms is suppressed in the method. The method includes reacting a specific chlorofluoroolefin with hydrogen in the presence of a catalyst supported on a carrier to obtain the hydrofluoroolefin. The catalyst is a catalyst composed of an alloy containing at least one platinum group element of palladium and platinum, and at least one second element of copper, gold, lithium, potassium, silver, zinc, tin, lead, and bismuth.

SUPPORTED PtZn INTERMETALLIC ALLOY CATALYST, METHOD FOR PREPARING THE SAME AND APPLICATION THEREOF

The present application discloses a supported PtZn intermetallic alloy catalyst, a method for preparing the same and application thereof. The catalyst uses SiOas a support and Zn as a promoter, and a small amount of active component Pt is supported; the weight percentage of Pt is 0.025%-1%, and the weight percentage of Zn is 0.025%-1.7%, a co-impregnation method is adopted in preparation, the SiOsupport is impregnated in aqueous solution of chloroplatinic acid and zinc nitrate, and then drying and high-temperature reduction are performed to obtain a PtZn/SiOcatalyst. The catalyst has the advantages of high activity, high stability, low price and low toxicity. The catalyst provided by the present application is applicable to preparation of alkene through short-chain alkane dehydrogenation, in particular to preparation of propylene through propane dehydrogenation in a hydrogen atmosphere. Under high-temperature conditions, the dehydrogenation activity is very high, the propylene selectivity can reach more than 90%, the stability is good, and the amount of used Pt is small, the utilization rate is high, and it is cheaper than industrial Pt series catalysts. 1. A supported PtZn intermetallic alloy catalyst , wherein the catalyst uses Pt as an active component and Zn as a promoter supported on a support; Pt and Zn form an atomically ordered intermetallic alloy; based on the weight of the support in the catalyst , the weight percentage of Pt is no more than 1 wt % , and the weight percentage of Zn is no more than 1.7 wt %.2. The supported PtZn intermetallic alloy catalyst according to claim 1 , wherein the weight percentage of Pt is 0.025 wt %-1 wt % claim 1 , preferably 0.1 wt %-0.5 wt %.3. The supported PtZn intermetallic alloy catalyst according to claim 1 , wherein the weight percentage of Zn is 0.025 wt %-1.5 wt % claim 1 , preferably 0.17 wt %-0.85 wt %.4. The supported PtZn intermetallic alloy catalyst according to any one of - claim 1 , wherein the support is one ...

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.

IRIDIUM CATALYSTS FOR CARBONYLATION

A solid catalyst comprising an effective amount of iridium and at least one second metal selected from gallium, zinc, indium and germanium associated with a solid support material is useful for vapor phase carbonylation to produce carboxylic acids and esters from alkyl alcohols, esters, ethers or ester-alcohol mixtures. The iridium and at least one second metal are deposited on a support material. In some embodiments of the invention, the catalyst is useful for vapor phase carbonylation. 1. A carbonylation catalyst comprising an effective amount of iridium and at least one second metal selected from gallium , zinc , indium and germanium wherein the iridium and the at least one second metal are associated with a solid support material comprising activated carbon.2. (canceled)3. (canceled)4. The carbonylation catalyst of wherein the catalyst includes from about 0.01 weight percent to about 10 weight percent each of the iridium and the at least one second metal.5. The carbonylation catalyst of wherein the catalyst includes from about 0.1 weight percent to about 3 weight percent each of the iridium and the at least one second metal.6. The carbonylation catalyst of wherein the molar ratio of the at least one second metal to iridium is from about 0.1:1 to about 10:1.7. The carbonylation catalyst of wherein the molar ratio of the at least one second metal to iridium is from about 0.5:1 to about 5:1.8. The carbonylation catalyst of claim 1 , further comprising at least one vaporous halogen promoting component selected from hydrogen halides claim 1 , gaseous hydrogen iodide claim 1 , alkyl and aryl halides having up to 12 carbon atoms claim 1 , iodine claim 1 , bromine claim 1 , chlorine claim 1 , and mixtures of two or more of the foregoing.9. The carbonylation catalyst of wherein the at least one vaporous halogen promoting component is selected from hydrogen iodide claim 8 , methyl iodide claim 8 , ethyl iodide claim 8 , 1-iodopropane claim 8 , 2-iodobutane claim 8 , 1- ...

CATALYST FOR PRODUCING HYDROGEN AND METHOD FOR PRODUCING HYDROGEN

A metal-supporting catalyst for decomposing ammonia into hydrogen and nitrogen. The catalyst shows a high performance with a low cost and being advantageous from the viewpoint of resources, and an efficient method for producing hydrogen using the catalyst. The catalyst catalytically decomposes ammonia gas to generate hydrogen. The hydrogen generation catalyst includes, as a support, a mayenite type compound having oxygen ions enclosed therein or a mayenite type compound having 10cmor more of conduction electrons or hydrogen anions enclosed therein, and metal grains for decomposing ammonia are supported on the surface of the support. Hydrogen is produced by continuously supplying 0.1-100 vol % of ammonia gas to a catalyst layer that comprises the aforesaid catalyst, and reacting the same at a reaction pressure of 0.01-1.0 MPa, at a reaction temperature of 300-800° C. and at a weight hourly space velocity (WHSV) of 500/mlghor higher. 1. A method for producing hydrogen comprising:continuously supplying an ammonia gas with a volume fraction of 0.1 to 100% to a catalyst layer comprising supported metal catalyst packed in a reactor; andperforming contact decomposition reaction at a reaction temperature of 350° C. to 800° C., [{'sup': 15', '−3, 'a support comprising a mayenite-type compound which includes 10cmor more of conduction electrons or hydrogen anions, and'}, 'particles of catalytically active metal for ammonia decomposition which are supported on a surface of the support., 'wherein the supported metal catalyst comprises'}2. The method for producing hydrogen according to claim 1 , wherein the contact decomposition reaction is performed at a pressure of 0.01 MPa to 1.0 MPa.3. The method for producing hydrogen according to claim 1 , wherein the contact decomposition reaction is performed at a weight hourly space velocity (WHSV) of 500/mlghor more.4. The method for producing hydrogen according to claim 1 , wherein the catalytically active metal comprises at least one ...

Multimetallic catalysts

A multimetallic catalyst having a substrate, intermediate layer and catalyst layer. The catalyst exhibits selectivity greater than 90% and a conversion rate of greater than 30%.

CHEMOCHROMIC NANOPARTICLES, METHOD FOR MANUFACTURING THE SAME, AND HYDROGEN SENSOR COMPRISING THE SAME

Disclosed are a chemochromic nanoparticle, a method for manufacturing the chemochromic nanoparticle, and a hydrogen sensor comprising the chemochromic nanoparticle. In particular, the chemochromic nanoparticle has a core-shell structure such that the chemochromic nanoparticle and comprises a core comprising a hydrated or non-hydrated transition metal oxide; and a shell comprising a transition metal catalyst. 112.-. (canceled)13. A method for manufacturing a chemochromic nanoparticle , the method comprising:preparing a hydrated or non-hydrated transition metal oxide;preparing a metal catalyst solution by dissolving a metal catalyst precursor and a polymer compound in an organic solvent;preparing a mixed solution by adding the hydrated or non-hydrated transition metal oxide to the metal catalyst solution;manufacturing the chemochromic nanoparticle with a core-shell structure by irradiating UV light to the mixed solution; andobtaining the chemochromic nanoparticle by filtering the mixed solution,wherein the chemochromic nanoparticle is formed in a core-shell structure.14. The method according to claim 13 , wherein the polymer compound comprises one or a mixture of two or more selected from the group consisting of polyurethane claim 13 , polyetherurethane claim 13 , cellulose acetate claim 13 , cellulose acetate butyrate claim 13 , cellulose acetate propionate claim 13 , polymethylmethacrylate (PMMA) claim 13 , polymethylacrylate (PMA) claim 13 , polyacrylic copolymers claim 13 , polyvinylacetate (PVAc) claim 13 , polyvinylacetate copolymers claim 13 , polyvinylalcohol (PVA) claim 13 , polystyrene claim 13 , polystyrene copolymers claim 13 , polyethyleneoxide (PEO) claim 13 , polypropyleneoxide (PPO) claim 13 , polyethyleneoxide copolymers claim 13 , polycarbonate (PC) claim 13 , polyvinylchloride (PVC) claim 13 , polycaprolactone claim 13 , polyvinylpyrrolidone (PVP) claim 13 , polyvinylfluoride claim 13 , polyvinylidene fluoride copolymers claim 13 , and polyamide.15. ...

Intermetallic compounds for use as catalysts and catalytic systems

The invention is directed to intermetallic compounds for use as catalysts for chemical reactions and catalytic systems. The structure of ordered intermetallic compounds enables such compounds to function as highly efficient catalysts. The ordered intermetallic compounds may be used to catalyze reactions in fuel cells (e.g., hydrogen fuel cells), amongst numerous other applications.

Intermetallic compounds for use as catalysts and catalytic systems

The invention is directed to intermetallic compounds for use as catalysts for chemical reactions and catalytic systems. The structure of ordered intermetallic compounds enables such compounds to function as highly efficient catalysts. The ordered intermetallic compounds may be used to catalyze reactions in fuel cells (e.g., hydrogen fuel cells), amongst numerous other applications.

Catalystic composition for olefin polymerization comprising transition metalcompound and method for preparing thermal resist olefin polymer using the same

본 발명은 전이금속 화합물을 포함하는 올레핀 중합용 촉매 조성물 및 이를 이용한 고내열 올레핀 중합체의 제조방법에 관한 것으로, 보다 상세하게는 제 1 전이금속 화합물, 제 2 전이금속 화합물, 조촉매 화합물, 및 탄소수 1 ~ 12의 하이드로카빌 치환체를 함유하는 아연 또는 갈륨 화합물인 중합보조제를 포함하는 올레핀 중합용 촉매 조성물, 및 상기 촉매조성물을 이용하여 올레핀 단량체를 중합하여 제조되는, 밀도는 0.7 ~ 0.9 g/cc 이고 녹는점이 100 ~ 140 ℃이며 분자량 5,000 ~ 30,000 의 저분자량 올레핀 중합체에 관한 것이다. 본 발명에 따르면 밀도 0.7 ~ 0.9 g/cc 이고 녹는점이 100 ~ 140℃ 이며 분자량 5,000 ~ 30,000 인 저분자량을 가지고 내열성이 우수한 올레핀 중합체를 제공하는 효과가 있다. The present invention relates to a catalyst composition for olefin polymerization comprising a transition metal compound and a method for producing a high heat resistant olefin polymer using the same, and more particularly, a first transition metal compound, a second transition metal compound, a promoter compound, and carbon number. A catalyst composition for olefin polymerization comprising a polymerization aid which is a zinc or gallium compound containing 1 to 12 hydrocarbyl substituents, and a density prepared by polymerizing an olefin monomer using the catalyst composition, has a density of 0.7 to 0.9 g / cc. Melting | fusing point relates to the low molecular weight olefin polymer of 100-3140 degreeC, and molecular weight 5,000-30,000. According to the present invention has an effect of providing an olefin polymer having a low molecular weight of 0.7 ~ 0.9 g / cc density, a melting point of 100 ~ 140 ℃ and a molecular weight of 5,000 to 30,000 and excellent heat resistance. 전이금속, 조촉매, 중합 보조제, 올레핀, 왁스, 고내열, 저밀도, 녹는점. Transition metals, promoters, polymerization aids, olefins, waxes, high heat resistance, low density, melting point.

Process to purify ethylene-containing off-gas feed streams

A method for purification of ethylene-containing feed streams from steam crackers or fluid catalytic crackers (FCC), wherein the feed streams further comprises hydrogen, carbon monoxide, acetylenes, oxygen, nitrogen oxides, is disclosed. The method comprises contacting an ethylene-comprising gas stream with a Ru-based catalyst at reaction temperatures of at least 120°C. The process results in an ethylene- containing feed stream wherein the ethylene is essentially free of acetylenes, nitrogen oxides and oxygen. The purifying of the feed stream occurs with minimal loss of ethylene.

Preparation and use of supported potassium (or rubidium)-Group VIII-metal cluster catalysts in CO/H2 Fischer-Tropsch synthesis reactions

This invention relates to unique supported potassium (or rubidium)-Group VIII-metal cluster catalysts which are useful in CO/H 2 reactions (Fischer-Tropsch synthesis reactions). The novel catalysts of the instant invention are prepared by depositing well characterized potassium (or rubidium)-Group VIII-metal carbonyl cluster complexes onto high surface area supports. Following a subsequent reduction, the precursor bimetallic cluster complexes are decomposed on the support surface forming a potassium (or rubidium) promoted Group VIII-metal cluster catalyst in which the potassium (or rubidium) and Group VIII metals are intimately associated. These unique, highly promoted cluster catalysts have been found to demonstrate high Group VIII-metal dispersions and enhanced Fischer-Tropsch activities and selectivities for producing olefinic and paraffinic hydrocarbons. In addition methane formation is dramatically reduced over the supported bimetallic cluster catalysts of the instant invention when compared to conventionally prepared supported potassium (or rubidium) promoted Group VIII-metal catalysts.

一种烃类费-托合成用催化剂组合物及其应用

本发明涉及利用费‑托（FT）反应由以氢和一氧化碳为主成分的混合气体制造烃类时使用的催化剂组合物、以及利用FT反应由上述合成气制造烃类的方法。具体涉及以包含含有FT活性金属和助剂金属负载于凹凸石与尖晶石氧化物复合载体的催化剂组合物、以及以使用上述FT合成催化剂为特征的烃类的制造方法。

Chemical reactor and method for gas phase reactant catalytic reactions

The present invention is a chemical reactor and method for catalytic chemical reactions having gas phase reactants. The chemical reactor has reactor microchannels for flow of at least one reactant and at least one product, and a catalyst material wherein the at least one reactant contacts the catalyst material and reacts to form the at least one product. The improvement, according to the present invention is: the catalyst material is on a porous material having a porosity that resists bulk flow therethrough and permits molecular diffusion therein. The porous material further has a length, a width and a thickness, the porous material defining at least a portion of one wall of a bulk flow path through which the at least one reactant passes.

Chemical reactor and method for catalytic gas phase reactions.

Method of depositing a catalytically active metallic component on a carrier material

A method is disclosed for effecting a uniform distribution of catalytically active metallic component over substantially all of the available surface area of a carrier material in a crystallite size of less than about 25 Angstroms. The innovative feature is in the use of a sulfur-containing organic acid as a complexing agent for the catalytically active metallic component in an impregnating solution adjusted to a pH of from about 5 to about 7.

CATALYST AND DEHYDROGENATION AND DEHYDROCYCLATION PROCEDURE.

UN METODO PARA MEJORAR LA ACTIVIDAD DE UNA COMPOSICION CATALITICA DE DESHIDROGENACION Y DESHIDROCICLACION Y UN PROCESO PARA MEJORAR LA CONVERSION Y SELECTIVIDAD DE HIDROCARBUROS DE PARAFINA A OLEFINA Y COMPUESTOS AROMATICOS. LOS NUEVOS PROCESOS INCLUYEN LA ADICION DE ALUMINATO DE CALCIO A UNA COMPOSICION CATALITICA QUE CONTIENE UN SOPORTE DE ALUMINATO DE ZINC Y UN METAL CATALIZADOR, Y OPCIONALMENTE, UN METAL PROMOTOR. A METHOD TO IMPROVE THE ACTIVITY OF A CATALYTIC COMPOSITION OF DEHYDROGENATION AND DEHYDROCYCLATION AND A PROCESS TO IMPROVE THE CONVERSION AND SELECTIVITY OF PARAFFIN HYDROCARBONS TO OLEPHINE AND AROMATIC COMPOUNDS. THE NEW PROCESSES INCLUDE THE ADDITION OF CALCIUM ALUMINATE TO A CATALYTIC COMPOSITION CONTAINING A ZINC ALUMINATE SUPPORT AND A CATALYST METAL, AND OPTIONALLY, A PROMOTING METAL.

CHEMICAL PROCESS AND CATALYST.

UN CATALIZADOR QUE CONTIENE CINC, JUNTO CON UNA CANTIDAD EFICAZ DE UN METAL DEL GRUPO DEL PLATINO SOBRE UN SOPORTE, QUE ES UN MATERIAL QUE TIENE LA ESTRUCTURA DE SILICALITA, CONSISTIENDO EL ARMAZON DE DICHO MATERIAL ESENCIALMENTE DE ATOMOS DE SILICIO Y OXIGENO, O DE SILICIO, CINC Y OXIGENO. TAMBIEN SE PROPORCIONA UN PROCEDIMIENTO PARA LA DESHIDROGENACION DE UNA PARAFINA C2-C10, PARA PRODUCIR UN PRODUCTO ALQUENO, PROCEDIMIENTO QUE CONSISTE EN PONER EN CONTACTO LA PARAFINA EN CONDICIONES DE DESHIDROGENACION CON UN CATALIZADOR SEGUN LA INVENCION. A CATALYST CONTAINING ZINC, TOGETHER WITH AN EFFECTIVE AMOUNT OF A METAL FROM THE PLATINUM GROUP ON A SUPPORT, WHICH IS A MATERIAL THAT HAS THE STRUCTURE OF SILICALITE, CONSISTING OF THE STRUCTURE OF SUCH MATERIAL ATTENDING SILICON AND OXYGEN, , ZINC AND OXYGEN. A PROCEDURE FOR THE DEHYDROGENATION OF A C2-C10 PARAFFIN IS ALSO PROVIDED, TO PRODUCE AN ALKENE PRODUCT, A PROCEDURE THAT CONSISTS OF CONTACTING THE PARAFFIN IN DEHYDROGENATION CONDITIONS ACCORDING TO THE INVENTION.

Chemical reactor and method for catalytic gas phase reactions

The present invention provides chemical reactors and reaction chambers and methods for conducting catalytic chemical reactions having gas phase reactants. In preferred embodiments, these reaction chambers and methods include at least one porous catalyst material that has pore sizes large enough to permit molecular diffusion within the porous catalyst material.

Chemical reactor and method for catalytic gas phase reactions

The present invention provides chemical reactors and reaction chambers and methods for conducting catalytic chemical reactions having gas phase reactants. In preferred embodiments, these reaction chambers and methods include at least one porous catalyst ma-terial that has pore sizes large enough to permit molecular diffusion within the porous catalyst material.

Process for preparing hydrogen peroxide from the elements

The present invention relates to a process for the preparation of hydrogen peroxide from oxygen or oxygen-delivering substances and hydrogen or hydrogen-delivering substances in the presence of at least one catalyst containing a metal-organic framework material, wherein said framework material comprises pores and a metal ion and an at least bidentate organic compound, said bidentate organic compound being coordinately bound to the metal ion. The invention further relates to a novel material consisting of said metal organic framework material wherein the material is brought in contact with at least one additional metal.

Process for the preparation of vinyl acetate

Method for the production of vinyl acetate

The method of purification of ethylene gas mixtures from acetylene

Epoxidation catalyst

The invention is a catalyst comprising a titanium or vanadium zeolite, a binder, and zinc oxide, wherein the catalyst is preparing an aqueous mixture of the zeolite, a binder source, and a zinc oxide source, and subjecting the mixture to rapid drying. The catalyst is useful in olefin epoxidation.

1,4-环己烷二甲醇的生产方法

本发明涉及1,4‑环己烷二甲醇的生产方法，解决现有技术中1,4‑环己烷二甲酸加氢制备1,4‑环己烷二甲醇时收率低的问题。通过采用1,4‑环己烷二甲醇的生产方法，包括如下步骤：以水为溶剂，在加氢催化剂存在下，1,4‑环己烷二甲酸与氢气反应得到1,4‑环己烷二甲醇，其中所述加氢催化剂，包括载体、活性组分和助催化剂，所述载体为活性炭，活性组分包括Ru，所述助催化剂包括P的技术方案，可用于生产1,4‑环己烷二甲醇的工业生产中。

Intermetallic compounds for use as catalysts and catalytic systems

The invention is directed to intermetallic compounds for use as catalysts for chemical reactions and catalytic systems. The structure of ordered intermetallic compounds enables such compounds to function as highly efficient catalysts. The ordered intermetallic compounds may be used to catalyze reactions in fuel cells (e.g., hydrogen fuel cells), amongst numerous other applications.

载体为含有硅胶和六方介孔材料的复合材料的异丁烷脱氢催化剂及其制备方法和应用

本发明涉及催化剂领域，公开了一种载体为含有硅胶和六方介孔材料的复合材料的异丁烷脱氢催化剂及其制备方法和应用。该方法包括：(a)制备六方介孔材料原粉；(b)制备六方介孔材料；(c)将所述六方介孔材料进行活化处理；(d)将载体进行活化处理，随后在含有Pt组分前驱体和Zn组分前驱体的溶液中进行浸渍处理，然后依次进行去除溶剂处理、干燥和焙烧。该方法可以利用成本低廉的硅源合成出高催化活性的异丁烷脱氢催化剂。

Catalyst for purifying exhaust gas

본 발명에 따르면, 환경부하물질로서 Ni 또는 Cu를 사용하지 않고도, 화학양론적 또는 환원 분위기 내의 H 2 S의 생성이 제어된다. 화학양론적 분위기 근처에서 연소가 제어되는 내연기관으로부터 배출되는 배기가스를 정화하기 위한 3원촉매에는, Bi, Sn 및 Zn으로 구성된 그룹으로부터 선택되는 1종 이상의 금속의 산화물로 이루어진 첨가 산화물이 상기 촉매의 리터당 0.02 mol 내지 0.2 mol의 양으로 첨가되었다. 상기 첨가 산화물은 산화 분위기 내의 SO 2 로부터 SO 3 또는 SO 4 를 생성하고, 환원 분위기 내의 황화물로서 황성분을 저장하여, H 2 S의 배출이 제어될 수 있게 한다. 또한, 환경부하물질을 함유하지 않기 때문에, 상기 촉매를 안전하게 사용할 수 있다. According to the present invention, production of H 2 S in a stoichiometric or reducing atmosphere is controlled without using Ni or Cu as an environmental load material. In the ternary catalyst for purifying exhaust gas emitted from an internal combustion engine whose combustion is controlled near a stoichiometric atmosphere, an additive oxide composed of an oxide of at least one metal selected from the group consisting of Bi, Sn and Zn is used as the catalyst. It was added in an amount of 0.02 mol to 0.2 mol per liter of. The addition oxide produces SO 3 or SO 4 from SO 2 in the oxidizing atmosphere and stores the sulfur component as a sulfide in the reducing atmosphere, so that the emission of H 2 S can be controlled. In addition, the catalyst can be used safely because it does not contain environmental loads.

亜酸化窒素分解触媒、その製造方法及び亜酸化窒素の分解方法

Fluorinated catalyst comprising a group VIII metal and an additional metal, and its use for hydrogenating aromactic compounds in the presence of sulphurated compounds

The invention concerns a catalyst comprising at least one group VIII metal, at least one additional metal, at least two halogens, including chlorine and fluorine, and at least one amorphous oxide matrix. The catalytic composition is such that the fluorine content is 1.5% by weight or more of the total catalyst mass. The invention also concerns the use of this catalyst in hydrogenating aromatic compounds contained in feeds comprising sulphurated compounds.

Poison-resistant catalyst and systems containing same

Layered catalyst composite

A layered catalyst composite for controlling vehicular exhaust emissions is disclosed. The composite comprises a substrate such as cordierite, at least one bottom layer deposited on the substrate containing a precious metal component such as platinum and at least one NO x storage component present in the amount of about 0.3 to about 1.5 g/in 3 , and at least one top layer deposited on the bottom layer containing a precious metal component such as platinum and at least one NO x storage component present in the amount of about 0.0 to less than about 0.3 g/in 3 .

钌基费托合成催化剂及其制备方法和应用

本发明公开了一种钌基费托合成催化剂及其制备方法。所述钌基费托合成催化剂包含钌、金属助剂以及载体。本发明提供的催化剂的制备方法通过还原反应直接在载体表面上将催化剂活性组分钌还原，从而避免了传统方法负载钌之后的高温焙烧还原步骤，避免了催化剂在反复高温焙烧还原过程中钌的烧结现象发生，保证钌在反应中的利用效率。本方法可以抑制活性钌物质烧结，抑制活性相和载体间形成复合氧化物。该方法制备的催化剂具有高活性、甲烷选择性低、重质烃选择性高等优点。

Method for gas phase reactant catalytic reactions

The present invention provides chemical reactors and reaction chambers and methods for conducting catalytic chemical reactions having gas phase reactants. In preferred embodiments, these reaction chambers and methods include at least one porous catalyst material that has pore sizes large enough to permit molecular diffusion within the porous catalyst material.

Hydrogenation process

The present invention relates to a method of reacting a specific compound as defined herein with hydrogen in the presence of a structured catalyst based on sintered metal fibers (SMF) coated with a ZnO layer containing Pd-nanoparticles, Carotenoids, perfume ingredients and / or food or feed ingredients produced by said reaction, as well as a method of reacting said specific compound with hydrogen in the presence of a pharmaceutically acceptable carrier.

一种六甲基茚满醇的制备方法

本发明公开了一种六甲基茚满醇的制备方法，在催化剂的作用下，1,1,2,3,3‑五甲基茚满与丙烯醇发生反应，经连续精馏分离出产品；所使用的催化剂为负载型Ru催化剂，由Ru前体、配体、助催化剂和载体制备得到。本发明主要优点在于由1,1,2,3,3‑五甲基茚满与丙烯醇反应制得六甲基茚满醇，负载型Ru催化剂活性高，选择性良好，不易流失，操作简单，经济效益好。

CdZnMS photocatalyst added with cation for water decomposition and preparation there for and method for producing hydrogen by use of the same

본 발명은 물을 광반응으로 분해하는 데에 사용되는 CdZnMS계 광촉매 및 그 제조방법, 그리고 이에 의한 수소의 제조방법에 관한 것으로, 이 하기의 일반식 VII를 가지는 것을 특징으로 한다. The present invention relates to a CdZnMS-based photocatalyst used to decompose water by a photoreaction, a method for producing the same, and a method for producing hydrogen thereby characterized by having the following general formula (VII). m(a)/Cd x Zn y M z S ------------------------------------ 일반식 VII m (a) / Cd x Zn y M z S ------------------------------------ General formula VII (상기 일반식에서 m은 전자받게로서 도핑된 금속을 나타내며 Ni, Pt, Ru 또는 이들의 산화물 중 선택된 1종 이상이며, a는 m의 중량 백분율을 나타내며 0.10 ∼ 5.00의 값을 갖는다. M은 Mo, V, Al, Cs, Ti, Mn, Fe, Pd, Pt, P, Cu, Ag, Ir, Sb, Pb, Ga, Re 중 선택된 금속이고, z는 M/(Cd+Zn+M)의 atom %를 나타낸 것으로 0.05 ∼ 20.00의 값을 갖는다. x, y는 각각 Cd/(Cd+Zn+M)의 atom % 및 Zn/(Cd+Zn+M)의 atom %를 나타낸 것으로 10.00 ∼ 90.00의 값을 갖는다.) (In the general formula, m represents a metal doped as an electron acceptor, and at least one selected from Ni, Pt, Ru, or oxides thereof, a represents a weight percentage of m, and has a value of 0.10 to 5.00. V, Al, Cs, Ti, Mn, Fe, Pd, Pt, P, Cu, Ag, Ir, Sb, Pb, Ga, Re is a metal selected from z, z is the atom% of M / (Cd + Zn + M) X and y represent atom% of Cd / (Cd + Zn + M) and atom% of Zn / (Cd + Zn + M), respectively, and represent values of 10.00 to 90.00. Have.) 본 발명의 광촉매는 가시광에서 높은 촉매활성을 가진 CdS계 광촉매와 자외광에서 상대적으로 고활성을 내는 ZnS계 촉매의 장점들을 동시에 가져 폭넓은 영역의 광원을 이용할 수 있으며, 종래의 광촉매가 보인 환원제에 대한 제한적인 활성을 획기적으로 해결하였을 뿐만 아니라, 얻어진 촉매의 수명이 매우 길고, 물분해에 의한 수소발생량이 종래의 방법보다 현저히 증가하였다. The photocatalyst of the present invention has the advantages of a CdS-based photocatalyst having high catalytic activity in visible light and a ZnS-based catalyst having relatively high activity in ultraviolet light, and thus can use a wide range of light sources. In addition to resolving the limited activity on the ground, the catalyst obtained has a very long life, and the amount of hydrogen generated by water decomposition is significantly increased compared with the conventional ...

Catalyst for the dehydrogenation of the c3-c15-paraffins procedure for preparing it and the process for dehydrogenating c3-15 paraffins using said catalyst

Se describe un catalizador para la deshidrogenación de las parafinas de 6 a 15 átomos de carbono. El catalizador contiene sobre un soporte, por lo menosun componente del grupo del platino, por lo menos un componente promotor de entre el grupo del estano, germanio y plomo, como también por lo menos unmodificador adicional. El modificador adicional contiene por lo menos un metal alcalino-térreo. La estabilidad del catalizador de acuerdo con la invención, esesencialmente superior con respecto a la utilización habitual de un metal alcalino. Se describe además el procedimiento para preparar dicho catalizadory el procedimiento para deshidrogenar parafinas C6-15 que utiliza dicho catalizador. A catalyst for the dehydrogenation of paraffins with 6 to 15 carbon atoms is described. The catalyst contains on a support, at least one component from the platinum group, at least one promoter component from the group of tin, germanium and lead, as well as at least one additional modifier. The additional modifier contains at least one alkaline earth metal. The stability of the catalyst according to the invention is essentially superior with respect to the usual use of an alkali metal. The procedure for preparing said catalyst and the procedure for dehydrogenating C6-15 paraffins using said catalyst are further described.

Intermetallic compounds for use as catalysts and catalytic systems

Stable catalysts and processes for making and using the same

The present invention relates to reactively stable catalysts, to the preparation thereof, and to reaction processes using these catalysts. These stable catalysts are useful in hydrogenation reactions, in particular hydrogenation of phenols to yield the corresponding cyclohexanone. The present invention also relates to a process for forming a supported palladium catalyst wherein said support material is metal-doped by impregnating the support material with a group (1) or (2) metal bicarbonate (solution); (drying the bicarbonate impregnated support material and) calcining the bicarbonate-treated support material to form a group (1) or (2) metal-doped support material; the group (1) or (2) metal-doped support material is palladium treated by further impregnating the support material with a palladium salt solution, drying and calcining. The invention also provides very diverse catalytic processes which include, for example, hydrogenation, dehydrogenation, hydrogenolysis, oxidation, polymerization, isomerisation, dehydrogenation and cyclization utilizing these catalysts.

Intermetallic compounds for use as catalysts and catalytic systems

Water-decomposition photocatalyst containing cations cdznms, preparation thereof, and a hydrogen-generation method utilizing this catalyst

FIELD: hydrogen generation catalysts. SUBSTANCE: photocatalyst is characterized by general formula m(a)/Cd x Zn y M z S, in which "m" denotes at least one alloying metal as electron acceptor selected from Ni, Pt, and Ru, or oxidized compound of these metals; "a" denotes weight percentage of "m" within a range of 0.10-5.00; M denotes catalytic element selected from group including Mo, V, Al, Cs, Ti, Mn, Fe, Pd, Pt, P, Cu, Ag, Ir, Sb, Pb, Ga, and Re; "z" denotes M/(Cd+Zn+M) in atomic % within a range of 0.05-20.0; and "x" and "y" denote respectively Cd/(Cd+Zn+M) and Zn/(Cd+Zn+M) (both in atomic %) limited by 10.00 and 89.95. Photocatalysts of the present invention possess advantages in that they manifest high degree of photocatalytic activity, in particular in visible- and UV-emission treatments with CdS and ZnS photocatalysts, respectively. Implementation of invention allows use of wide-range emission sources. In addition, use of photocatalysts of invention enables overcoming limitation of activity by reducing agents during photochemical reaction. EFFECT: widened application area, increased lifetime, and increased productivity with regard to hydrogen. 10 cl, 1 tbl, 51 ex обсхебгс пы сэ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ “” 2 199 390. В 01 {4 27/049, 27/051, 27/04, (51) МПК? 13) С2 23/06, 37/03, С 01 В 3/06 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 2001104814/04, 21.02.2001 (24) Дата начала действия патента: 21.02.2001 (30) Приоритет: 22.02.2000 КК 2000-8555 (46) Дата публикации: 21.02.2003 (56) Ссылки: МО 98/15352 А, 16.04.1998. КЦ 2139881 СЛ, 20.10.1999. МО 97/12668 АЗ, 10.04.1997. 4$ 4745094 А, 17.05.1988. ЕК 2493181 АЛ, 07.05.1982. (98) Адрес для переписки: 101000, Москва, М.Златоустинский пер., д.10, кв.15, "ЕВРОМАРКПАТ", И.А.Веселицкой (71) (72) (73) (74) Заявитель: КОРЕА РИСЕРЧ ИНСТИТЬЮТ ОФ КЕМИКЭЛ ТЕХНОЛОДЖИ (КК), ЧУНЛУ КО., ЛТД. (КК) Изобретатель: ПАРК Дае ...

촉매 및 촉매계로서 사용하기 위한 금속간 화합물

본 발명은 화학 반응을 위한 촉매 및 촉매계로서 사용하기 위한 금속간 화합물에 관한 것이다. 규칙적 금속간 화합물의 구조는 그러한 화합물이 고효율성 촉매로서 작용할 수 있도록 한다. 규칙적 금속간 화합물은 수많은 다른 용도들 중에서도 연료 전지 (예컨대, 수소 연료 전지)에서 반응을 촉매하기 위해 사용될 수 있다.

A chemical reactor and method for gas phase reactant catalytic reactions

본 발명은 화학 반응기와 기체상 반응물의 촉매 화학 반응 실행 방법 및 반응실을 제공하는 데에 있다. 바람직한 실시예에 있어서, 이들 반응실 및 방법은 다공성 촉매 물질 내부에 분자 확산을 허용하는 공극 크기를 갖는 적어도 하나의 다공성 촉매 물질을 포함한다. The present invention is to provide a method for carrying out a catalytic chemical reaction of a chemical reactor and a gas phase reactant and a reaction chamber. In a preferred embodiment, these reaction chambers and methods comprise at least one porous catalyst material having a pore size that allows molecular diffusion within the porous catalyst material.

Process for Purification of Ethylene-Containing Feedstreams

A method for purification of ethylene-containing feedstreams from steam crackers or fluid catalytic crackers (FCC), wherein the feedstreams further comprises hydrogen, carbon monoxide, acetylenes, oxygen, nitric oxides, is disclosed. The method comprises contacting an ethylene-comprising gas stream with a Ru-based catalyst at reaction temperatures of at least 120°C. The process results in an ethylene-containing feedstream wherein the ethylene is essentially free of acetylenes, nitric oxides and oxygen. The purifying of the feedstream occurs with minimal loss of ethylene.

Process for purification of ethylene-containing feedstreams

A method for purification of ethylene-containing feedstreams from steam crackers or fluid catalytic crackers (FCC), wherein the feedstreams further comprises hydrogen, carbon monoxide, acetylenes, oxygen, nitric oxides, is disclosed. The method comprises contacting an ethylene-comprising gas stream with a Ru-based catalyst at reaction temperatures of at least 120°C. The process results in an ethylene-containing feedstream wherein the ethylene is essentially free of acetylenes, nitric oxides and oxygen. The purifying of the feedstream occurs with minimal loss of ethylene.

Dehydrogenation catalyst controlled crystalline properties of ZnO and Alumina

본 발명은 산화아연과 알루미나의 결정특성을 조절한 탈수소용 금속촉매에 관한 것임. The present invention relates to a metal catalyst for dehydrogenation in which the crystal properties of zinc oxide and alumina are adjusted. 본 발명은 표면적이 40 ∼ 140㎡/g, 성분이 Zn×Aℓ 2 O Y (x:0.01∼0.57, y :3.01 ∼ 3.57)인 담체에 백금 0.1 ∼ 2중량%를 함유시킨 탈수소용 촉매임. The present invention is a catalyst for dehydrogenation containing 0.1 to 2% by weight of platinum in a carrier having a surface area of 40 to 140 m 2 / g and a component of Zn x Al 2 O Y (x: 0.01 to 0.57, y: 3.01 to 3.57). 본 발명은 올레핀의 선택적 생성율이 우수하고 코크 생성도 적으며 안정적으로 탈수소화 시킬 수 있음. The present invention is excellent in the selective production rate of olefins, less coke production, can be stably dehydrogenated.

Organic zinc catalyst

본 발명은 유기 아연 촉매에 관한 것이다. 본 발명에 따르면, 보다 얇은 두께와 넓은 표면적을 가져 폴리알킬렌 카보네이트 수지의 제조를 위한 중합 과정에서 보다 향상된 활성을 나타낼 수 있는 유기 아연 촉매가 제공된다. The present invention relates to organozinc catalysts. According to the present invention, there is provided an organic zinc catalyst having a thinner thickness and a large surface area, which can exhibit improved activity in the polymerization process for the production of a polyalkylene carbonate resin.

Processes to make neopentane using shell and tube reactors

Processes for producing neopentane are disclosed herein. Processes comprise demethylating a C 6 -C 8 alkane within a shell and tube reactor to produce a demethylation product including at least 10 wt % neopentane based on the weight of the demethylation product.

Composite oxide loaded Pd-based catalyst, and preparation method and application thereof

本发明属于负载型催化剂技术领域，公开了一种复合氧化物负载的Pd基催化剂及其制备方法和应用，该催化剂以ZnO‑xAl复合氧化物为载体，Pd为活性组分，Al作为结构助剂；制备时，采用共沉淀法合成ZnO‑xAl复合氧化物载体，再采用沉积沉淀法引入活性组分Pd，干燥焙烧，得到Pd/ZnO‑xAl催化剂。本发明催化剂适用于二氧化碳加氢制甲醇反应，以Pd为活性组分，相比于未改性的Pd系催化剂具有CO 2 转化率高，甲醇收率高的特点。

Patent SU383274A3

Carbonylation catalyst and production thereof

FIELD: chemistry. SUBSTANCE: present invention provides a carbonylation catalyst for synthesis of oxalate from carbon monoxide (CO) and nitrite in gaseous phase, comprising: (a) an active component containing palladium particles (Pd) in amount of 0.01 to 1.00 wt%, wherein Pd particles have a degree of dispersion of 20 to 50 % and an average particle size of 2.5 to 4.0 nm; (b) an auxiliary in amount of 0.01 to 12 wt%, wherein the auxiliary element is an alkali metal or an alkali-earth metal; from 0.01 to 11 wt%, wherein the auxiliary element is selected from a group consisting of IIB, IVB, VB, VIIB, VIII, IIIA and IVA; or from 0.01 to 10 wt%, wherein auxiliary element is lanthanide; (c) a support containing aluminum oxide and in which at least 90 wt% of aluminum oxide is in form of alpha-aluminum oxide, and in which the ratio of bridge adsorption of CO to linear adsorption of CO on the catalyst ranges from 1.8 to 4.3. Also disclosed is a method of producing said catalyst and a method for use thereof in synthesis of oxalate in a reaction taking place in a gas phase between carbon monoxide (CO) and methyl nitrite (MN). EFFECT: technical result is higher efficiency of catalyst and output of oxalate. 16 cl, 2 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК B01J 23/44 B01J 23/00 B01J 37/02 B01J 37/08 C07C 67/36 (11) (13) 2 702 107 C1 (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B01J 23/44 (2019.05); B01J 23/00 (2019.05); B01J 37/02 (2019.05); B01J 37/08 (2019.05); C07C 67/36 (2019.05) (21)(22) Заявка: 2018145394, 22.10.2018 22.10.2018 (73) Патентообладатель(и): ПУЦЗИН КЕМИКАЛ ИНДАСТРИ КО., ЛТД (CN) Дата регистрации: 04.10.2019 (45) Опубликовано: 04.10.2019 Бюл. № 28 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 20.12.2018 (86) Заявка PCT: 2 7 0 2 1 0 7 R U Адрес для переписки: 191036, Санкт-Петербург, а/я 24, "НЕВИНПАТ" C 1 C 1 CN 2018/111137 (22.10.2018) 2 7 ...

Alkane dehydrogenation method

Supported gas-sensitive catalyst, preparation method and application thereof in menthone synthesis

本发明涉及一种负载型气敏催化剂和制备方法及其在薄荷酮合成中的应用，包括具有气敏性的金属氧化物载体和活性组分，借助于本发明所述催化剂，可以通过简便易行的操作，有效解决目前反应中所存在的“拖尾”现象，使反应速率自始至终都维持在理想状态，节约反应时间，降低异构物与重组分等杂质的生成，提高产物选择性。

Method for preparing TiO2-loaded rhodium-based catalyst of ethyl alcohol through acetic acid hydrogenation method

一种醋酸加氢制乙醇的TiO2负载的铑基催化剂的制备方法，该方法是以二氧化钛为载体，以铑或铑的氧化物为主催化剂，金属或其氧化物为助催化剂。其制备方法为沉积沉淀法：将碱溶液滴加到铑和M盐组成的混合溶液中形成沉淀，然后向其中加入载体二氧化钛，均匀搅拌一段时间将沉淀物质吸附在载体二氧化钛上；然后过滤洗涤以滤除其中的杂质；干燥、焙烧得到二氧化钛负载的金属氧化物。加氢反应在管式固定床反应器中进行，首先将催化剂在还原性气氛中还原，然后通过控制反应的温度、压力、体积空速、氢酸比等参数得到较高的转化率和选择性。本发明制备方法简单、重复性强、催化效果高，是一种理想的工业用醋酸加氢制乙醇催化剂。

2-butene-1,4-diol production process

FIELD: industrial organic synthesis. SUBSTANCE: process consists in hydrogenation of butinediol on catalyst containing palladium and zinc and is distinguished by conducting process on catalyst additionally containing copper and/or silver. EFFECT: increased activity and selectivity of catalyst and avoided use of toxic substances when preparing and exploiting catalysts. 10 cl, 1 tbl, 7 ex ДСЗУЗЯТсС ПЧ сэ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ” 2154 527‘ (51) МПК? 13) С2 В 01 4 23/60, С 07 С 29/17, 33/035/(В 01 3 23/60, 103:12, 103:14) 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 97101900/04, 04.07.1995 (24) Дата начала действия патента: 04.07.1995 (30) Приоритет: 06.07.1994 ОЕ Р 4423738.3 (46) Дата публикации: 20.08.2000 (56) Ссылки: ОЕ 2431929 В.2, 01.07.1976. ОЕ 2460078 АЛ, 03.07.1975. 5Ц 470304 А, 08.08.1975. 5Ц 311887 А, 19.10.1971. ЕР 0312233 А, 19.04.1989. (85) Дата перевода заявки РСТ на национальную фазу: 06.02.1997 (86) Заявка РСТ: ЕР 95/02592 (04.07.1995) (87) Публикация РСТ: М/О 96/01242 (18.01.1996) (98) Адрес для переписки: 103064, Москва, ул. Казакова 16, НИИР-Канцелярия "Патентные поверенные Квашнин, Сапельников и Партнеры", Квашнину В.П. (71) Заявитель: БАСФ АГ (О0Е) (72) Изобретатель: Маттиас ИРГАНГ (0Е), Фолькмар МЕНГЕР (0Е), Эрнест МИЗЕН (ОЕ), Петер ШТОПС (ОЕ), Фритц ГРАФ (0Е) (73) Патентообладатель: БАСФ АГ (0Е) (54) СПОСОБ ПОЛУЧЕНИЯ БУТЕН-2-ДИОЛА-1,4 (57) Описывается способе получения бутен-2-диола-1,4, который находит применение для получения некоторых важных средств защиты растений, фармацевтических средств и промежуточных продуктов. Способ осуществляют путем гидрирования бутиндиола на катализаторе, содержащем палладий и цинк Процесс ведут на катализаторе, содержащем дополнительно медь или серебро, или их смесь. Технический результат - увеличение активности и избирательности катализатора и одновременно избежание использования токсических веществ при получении и применении катализаторов. 9 з.п. ф- ...

A lithium aluminate layered catalyst and a selective oxidation process using the catalyst

본 발명에 따른 수소의 선택적 산화를 위한 촉매는 근청석과 같은 비활성 코어와 리튬 알루미네이트 지지체를 포함하는 외부 층을 포함한다. 상기 지지체는 그 상부에 백금족 금속, 예를 들어 백금과, 조촉매 금속, 예를 들어 주석이 분산되어 있다. 이 촉매는 탈수소화 공정에서 수소를 선택적으로 산화시키는 데 있어서 특히 효과적이다. The catalyst for the selective oxidation of hydrogen according to the invention comprises an outer layer comprising an inert core such as cordierite and a lithium aluminate support. The support has a platinum group metal such as platinum and a promoter metal such as tin dispersed thereon. This catalyst is particularly effective in selectively oxidizing hydrogen in dehydrogenation processes.

Photocatalyst for water treatment containing graphene oxide supported with Ag doped zinc oxide, preparation method thereof and using thereof

본 발명은 그래핀옥사이드에 은이 도핑된 산화아연을 포함하는 수처리용 촉매, 이의 제조방법 및 이를 이용한 수처리 방법에 관한 것이다. 본 발명에 따른 수처리용 촉매는 가시광 조사 시에도 우수한 광촉매 활성을 나타낼 뿐만 아니라 다공성의 특징을 가져 흡착성도 우수한 수처리용 촉매를 제공하며, 제조단가가 저렴하고 제조과정이 간단한 수처리용 촉매의 제조방법을 제공한다. The present invention relates to a water treatment catalyst comprising zinc oxide doped with silver to graphene oxide, a method for producing the same, and a water treatment method using the same. The water treatment catalyst according to the present invention provides a water treatment catalyst which not only exhibits excellent photocatalytic activity even when irradiated with visible light, but also has a porous property and excellent adsorption, and is a process for producing a water treatment catalyst having a low production cost and a simple production process to provide.

Process And Catalyst For The Selective Hydrogenation Of Vutine Diol To Butene Diol

구리 및 아연 또는 은 및 아연이 도핑제로서 첨가된 팔라듐 촉매를 사용하는 부틴-2-디올(1,4)의 부텐-2-디올(1,4)로의 선택적 수소화 방법을 기재한다. 바람직한 양태에서, 촉매의 조성을 최적화시킴으로써, 또한 촉매 제조 공정 동안에 독성 물질을 취급할 필요를 배제시키면서, 문제의 촉매의 활성 및 선택성을 증진시킬 수 있었다. 2-diol (1,4) with butene-2-diol (1,4) using copper and zinc or a palladium catalyst to which silver and zinc are added as a dopant. In a preferred embodiment, by optimizing the composition of the catalyst, the activity and selectivity of the catalyst in question could be enhanced, while eliminating the need to treat the toxic material during the catalyst preparation process.

Catalyst for producing isopropylbenzene and its production method and use

本発明は、イソプロピルベンゼンを製造するための触媒ならびにその製造方法および使用を提供する。前記触媒は担体と、当該担体上に担持された活性成分とを含み、前記担体は担体基材と、当該担体基材に担持された改質補助成分とを含み、前記活性成分は金属パラジウムおよび／またはその酸化物を含み、前記改質補助成分はリンおよび／またはその酸化物であり；任意で、前記活性成分は金属銅および／またはその酸化物をさらに含み；前記触媒は、硫黄含有化合物をさらに含む。イソプロピルベンゼンの製造に使用される場合、本発明の触媒は、当該触媒の比較的大きな初期活性によって引き起こされる当該触媒の局所的な過熱をより良好に抑制することができ、金属粒子の成長およびイソプロピルベンゼンのイソプロピルシクロヘキサンへの過剰な水素化を回避する。一方で、それは二量化イソプロピルベンゼンの生成を効果的に制御し、イソプロピルベンゼンの選択率を高めながら前記触媒の操作安定性を顕著に改善する。

Method of producing cyclohexane

Preparing Method of Butenes from n-Butane

본 발명은 노르말-부탄으로부터 부텐을 제조하는 방법에 관한 것으로서, 더욱 상세하게는 세리아-알루미나 담체에 담지된 백금-주석 촉매 또는 백금-아연 촉매의 존재하에서 석탄이나 천연가스로부터 얻어지는 노르말-부탄을 직접 탈수소화 반응시켜 1-부텐 및 2-부텐을 제조하는 방법에 관한 것이다. 본 발명에 따르면 노르말-부탄을 반응물로 사용하여, 26 ~ 35 % 정도의 수율로 부텐을 얻을 수 있으며, 크래킹과 이성화반응으로부터 생산되는 부산물, 탄소 침적, 촉매의 비활성화를 효과적으로 억제하여 높은 수준의 노르말-부탄 전환율 및 부텐에 대한 선택도를 달성할 수 있다.

Chemical reactor and method for gas phase reactant catalysis

Chemical reactor and method for gas phase reactant catalytic reactions

The present invention provides chemical reactors and reaction chambers and methods for conducting catalytic chemical reactions having gas phase reactants. In preferred embodiments, these reaction chambers and methods include at least one porous catalyst material that has pore sizes large enough to permit molecular diffusion within the porous catalyst material.

Dehydrogenation catalyst

FIELD: chemistry. SUBSTANCE: invention relates to dehydrogenation catalysts. Described is a dehydrogenation catalyst for dehydrogenating gaseous hydrocarbons, which contains platinum, one or more auxiliary metals selected from a group consisting of tin, germanium, gallium, indium, zinc and manganese, an alkali metal or an alkali-earth metal and a halogen component, which are deposited on a support consisting of aluminium oxide having theta-crystallinity of 90% or higher, said support having 5-100 nm mesopores and 0.1-20 mcm macropores, and platinum density per unit surface area of the catalyst is equal to 0.001-0.009 wt %/m 2 . EFFECT: high catalyst activity. 8 cl, 3 tbl, 3 dwg, 3 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 470 704 (13) C1 (51) МПК B01J B01J B01J B01J C07C 23/42 27/06 35/04 35/10 5/333 (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2011127547/04, 25.05.2009 (24) Дата начала отсчета срока действия патента: 25.05.2009 (73) Патентообладатель(и): ХИОСУНГ КОРПОРЕЙШН (KR) (45) Опубликовано: 27.12.2012 Бюл. № 36 2 4 7 0 7 0 4 (56) Список документов, цитированных в отчете о поиске: US 2002/0022755 A1, 21.02.2002. WO 2006055229 A1, 26.05.2006. US 4717779 A, 05.01.1988. EP 1216093 B1, 25.06.2003. EA 7454 B1, 27.10.2006. RU 2114809 C1, 10.07.1998. RU 2238797 C1, 27.10.2004. 2 4 7 0 7 0 4 R U (86) Заявка PCT: KR 2009/002739 (25.05.2009) C 1 C 1 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 01.08.2011 (87) Публикация заявки РСТ: WO 2010/076928 (08.07.2010) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", Е.Е.Назиной (54) КАТАЛИЗАТОР ДЕГИДРОГЕНИЗАЦИИ (57) Реферат: Изобретение относится к катализаторам дегидрогенизации. Описан катализатор дегидрогенизации для дегидрогенизации газообразных углеводородов, содержащий платину, один или несколько вспомогательных металлов, выбранных из ...

Catalysts for refining reformed gas and process for selectively removing carbon monoxide in reformed gas using the same

본 발명은 개질가스 정제용 촉매 및 이를 이용하여 개질가스 내의 일산화탄소를 선택적으로 제거하는 방법에 관한 것으로, 좀 더 상세하게는 상용지지체 상에 귀금속과 알카리 금속, 알카리 토금속 또는 이들의 복합물을 복합산화물의 형태로 담지하여 제조된 촉매; 또는 지지체의 구성물질로서 알카리 금속, 알카리 토금속 또는 이들의 복합물이 포함된 지지체 상에 귀금속을 담지하여 제조된 촉매 및 이를 이용하여 개질가스 내의 일산화탄소를 선택적으로 제거하는 방법에 관한 것이다. 본 발명에 따른 촉매를 사용하여 탄화수소 또는 알코올류의 개질반응에 의해서 생성된 수소가 풍부한 개질가스를 정제할 경우, 일산화탄소의 선택적 산화능이 우수하며, 부반응에 의한 수소의 소모율이 낮기 때문에 PROX(preferential oxidation) 공정 구성의 단순화 및 경량화를 달성할 수 있다. The present invention relates to a catalyst for reforming a reformed gas and a method for selectively removing carbon monoxide in the reformed gas by using the same, and more particularly, a noble metal and an alkali metal, an alkaline earth metal or a complex thereof on a commercial support. A catalyst prepared by supporting in a form; Or a catalyst prepared by supporting a precious metal on a support including an alkali metal, an alkaline earth metal or a complex thereof as a constituent of the support, and a method for selectively removing carbon monoxide in the reformed gas using the catalyst. When using a catalyst according to the present invention to purify the hydrogen-rich reformed gas produced by the reforming reaction of hydrocarbons or alcohols, PROX (preferential oxidation) is excellent because the selective oxidation ability of carbon monoxide is excellent, and the consumption rate of hydrogen by side reactions is low Simplification and weight reduction of the process configuration can be achieved.

Hydrogen discoloring nanoparticles, method for producing the same, and hydrogen sensor including the same

Preparation method of rhodium-ruthenium composite catalyst for preparing ethyl alcohol through acetic acid hydrogenation

一种醋酸加氢制备乙醇的铑钌复合催化剂的制备方法，该方法是以铑和钌或其氧化物为主催化剂，金属或其氧化物为助催化剂，二氧化硅、三氧化二铝、二氧化钛、二氧化铈、二氧化锆、碳化硅中的任意一种或多种为载体。其制备方法为沉积沉淀法：将碱溶液滴加到铑和钌和M盐组成的混合溶液中形成沉淀，向其中加入载体，均匀搅拌一段时间将沉淀物质吸附在载体上；过滤洗涤以滤除其中的杂质；干燥、焙烧得到负载的金属氧化物。加氢反应在管式固定床反应器中进行，首先将催化剂在还原性气氛中还原，然后通过控制反应的温度、压力、体积空速、氢酸比等参数得到较高的转化率和选择性。本发明制备方法简单、重复性强、催化效果高。

Process for producing hydrofluoroolefin

A method for producing a hydrofluoroolefin is provided. The formation of by-products of an over-reduced product having hydrogen added to a material chlorofluoroolefin and an over-reduced product having not only chlorine atoms but also fluorine atoms in the chlorofluoroolefin replaced with hydrogen atoms is suppressed in the method. The method includes reacting a specific chlorofluoroolefin with hydrogen in the presence of a catalyst supported on a carrier to obtain the hydrofluoroolefin. The catalyst is a catalyst composed of an alloy containing at least one platinum group element of palladium and platinum, and at least one second element of manganese, copper, aluminum, gold, lithium, sodium, potassium, magnesium, silver, zinc, cadmium, indium, silicon, germanium, tin, lead, arsenic, antimony, and bismuth.

Process for producing hydrofluoroolefin

A method for producing a hydrofluoroolefin is provided. The formation of by-products of an over-reduced product having hydrogen added to a material chlorofluoroolefin and an over-reduced product having not only chlorine atoms but also fluorine atoms in the chlorofluoroolefin replaced with hydrogen atoms is suppressed in the method. The method includes reacting a specific chlorofluoroolefin with hydrogen in the presence of a catalyst supported on a carrier to obtain the hydrofluoroolefin. The catalyst is a catalyst composed of an alloy containing at least one platinum group element of palladium and platinum, and at least one second element of copper, gold, lithium, potassium, silver, zinc, tin, lead, and bismuth.

Alkane dehydrogenation

A process for dehydrogenating C 2 -C 8 alkanes in the presence of steam and a catalyst composition containing zinc aluminate, a tin oxide and platinum, wherein the zinc aluminate support material has been prepared by calcining zinc oxide and a hydrated alumina (so as to alleviate coking during the dehydrogenation process).

Hydrofining method and hydrofining agent for crude ethylene glycol

本发明涉及一种粗乙二醇加氢精制剂及乙二醇加氢精制方法，所述精制剂包括载体、活性组分和助剂，其中所述活性组分包括钌，所述助剂包括碱土金属氧化物和过渡金属氧化物中的至少一种。该精制剂用于粗乙二醇精制中能够使精制后的乙二醇紫外透过率高、储存过程中降低不明显，同时该精制剂稳定，使用寿命长。