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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 13602. Отображено 100.
12-01-2012 дата публикации

Olefin production process

Номер: US20120010453A1
Автор: Kenji Fujiwara, Masayasu Ishibashi, Terunori Fujita, Tsuneyuki Ohkubo
Принадлежит: Mitsui Chemicals Inc

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

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Номер записи: 1
19-01-2012 дата публикации

Catalyst for production of hydrogen and process for producing hydrogen using the catalyst, and catalyst for combustion of ammonia, process for producing the catalyst and process for combusting ammonia using the catalyst

Номер: US20120015802A1
Автор: Hideaki Tsuneki, Junji Okamura, Masanori Yoshimune, Masaru Kirishiki, Shinya Kitaguchi
Принадлежит: NIPPON SHOKUBAI CO LTD

Disclosed is a catalyst which can be used in the process for producing hydrogen by decomposing ammonia, can generate heat efficiently in the interior of a reactor without requiring excessive heating the reactor externally, and can decompose ammonia efficiently and steadily by utilizing the heat to produce hydrogen. Also disclosed is a technique for producing hydrogen by decomposing ammonia efficiently utilizing the catalyst. Specifically disclosed is a catalyst for use in the production of hydrogen, which is characterized by comprising an ammonia-combusting catalytic component and an ammonia-decomposing catalytic component. Also specifically disclosed is a catalyst for use in the production of hydrogen, which is characterized by comprising at least one metal element selected from the group consisting of cobalt, iron, nickel and molybdenum.

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Номер записи: 2
23-02-2012 дата публикации

Fine particles of core-shell structure and functional device incorporated therewith

Номер: US20120046164A1
Автор: Shigetaka Tomiya, Shinji Tanaka, Shuji Goto
Принадлежит: Sony Corp

Disclosed herein is fine particles of core-shell structure, each particle being composed of a core particle which is formed from a first material and has the face-centered cubic crystal structure and a shell layer which is formed from a second material differing from the first material on the surface of the core particle and has the face-centered cubic crystal structure, the fine particles containing particles which are multiply twinned fine particles and are surrounded by the {111} crystal plane.

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Номер записи: 3
17-05-2012 дата публикации

Process For The Production Of Hydrogen And Carbon Dioxide

Номер: US20120118011A1
Автор: Arthur Darde, Bhadra S. Grover, Dennis A. Vauk, Paul TERRIEN, Purushottam V. Shanbhag, Trapti Chaubey
Принадлежит: Air Liquide Large Industries US LP, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude

The present invention provides a method to more efficiently recover hydrogen and carbon dioxide as well as a design for carbon dioxide capture from syngas that allows for the simultaneous production of medium to high amounts of hydrogen and the capture of at least 90% of the carbon dioxide in the syngas as a part of the production of hydrogen in a hydrogen generation plant. Through the use of a combination of hydrogen selective membranes and carbon dioxide selective membranes together with a carbon dioxide separation unit it is possible to increase recovery of hydrogen and carbon dioxide and improved process efficiency of the hydrogen generation plant.

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Номер записи: 4
17-05-2012 дата публикации

Oxidation catalyst

Номер: US20120122660A1
Автор: David Bergeal, Duncan John William Winterborn, Hai-Ying Chen, Hsiao-Lan Chang, Hubert Schedel, Jörg Werner MÜNCH, Julian Cox, Paul Joseph Andersen, Rainer Leppelt, Ralf Dotzel, Todd Ballinger
Принадлежит: JOHNSON MATTHEY PLC

An oxidation catalyst comprises an extruded solid body comprising: 10-95% by weight of at least one binder/matrix component; 5-90% by weight of a zeolitic molecular sieve, a non-zeolitic molecular sieve or a mixture of any two or more thereof; and 0-80% by weight optionally stabilised ceria, which catalyst comprising at least one precious metal and optionally at least one non-precious metal, wherein: (i) a majority of the at least one precious metal is located at a surface of the extruded solid body; (ii) the at least one precious metal is carried in one or more coating layer(s) on a surface; (iii) at least one metal is present throughout the extruded solid body and in a higher concentration at a surface; (iv) at least one metal is present throughout the extruded solid body and in a coating layer(s) on a surface; or (v) a combination of (ii) and (iii).

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Номер записи: 5
17-05-2012 дата публикации

Alumina catalyst support

Номер: US20120122671A1
Автор: Andrew Polli, FRANCIS Francis, Naotaka Ohtake, Olivier Larcher, Thomas English
Принадлежит: Rhodia Operations SAS

The present invention is directed to a high surface area, high pore volume porous alumina, comprising: aluminum oxide, optionally, silicon oxide and aluminosilicates, and optionally one or more dopants, said alumina having a specific surface area of from about 100 to about 500 square meters per gram and a total pore volume after calcination at 900° C. for 2 hours of greater than or equal to 1.2 cubic centimeters per gram, wherein less than or equal to 15% of the total pore volume is contributed by pores having a diameter of less than 10 nm.

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Номер записи: 6
24-05-2012 дата публикации

Porous inorganic composite oxide

Номер: US20120129690A1
Автор: Andrew Polli, FRANCIS Francis, Olivier Larcher, Simon Ifrah, Thomas English
Принадлежит: Rhodia Operations SAS

A porous inorganic composite oxide containing oxides of aluminum and of cerium and/or zirconium, and, optionally, oxides of one or more dopants selected from transition metals, rare earths, and mixtures thereof, and having a specific surface area, in m 2 /g, after calcining at 1100° C. for 5 hours, of ≧0.8235[Al]+11.157 and a total pore volume, in cm 3 /g, after calcining at 900° C. for 2 hours, of ≧0.0097[Al]+0.0647, wherein [Al] is the amount of oxides of aluminum, expressed as pbw Al 2 O 3 per 100 pbw of the composite oxide; a catalyst containing one or more noble metals dispersed on the porous inorganic composite oxide; and a method for making the porous inorganic composite oxide.

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Номер записи: 7
14-06-2012 дата публикации

Method of manufacturing porous metal oxide

Номер: US20120149560A1
Автор: Hyung-Kun Lee, Nak Jin CHOI, Seungeon Moon, Woo Seok Yang
Принадлежит: Electronics and Telecommunications Research Institute ETRI

Provided is a method of manufacturing porous metal oxide, the method including: preparing a metal-organic framework (MOF) wherein an ion of a metal to be used as a catalyst is linked to an organic ligand; impregnating the MOF with a precursor solution of metal oxide to be manufactured; and thermally treating the metal oxide precursor solution-impregnated MOF to remove the organic ligand. The inventive method of manufacturing porous metal oxide involves the impregnation of a metal oxide precursor solution in a MOF wherein metal ions are uniformly linked to organic ligands and the thermal treatment (calcination) of the metal oxide precursor solution-impregnated MOF to remove the organic ligands.

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Номер записи: 8
05-07-2012 дата публикации

Hydroprocessing catalysts and methods for making thereof

Номер: US20120172199A1
Автор: Bruce Edward Reynolds, Joseph V. Nguyen, Julie Chabot, Ling Jiao, Shuwu Yang
Принадлежит: Chevron USA Inc

An improved process to make a slurry catalyst for the upgrade of heavy oil feedstock is provided. In the process, at least a metal precursor feedstock is portioned and fed in any of the stages: the promotion stage; the sulfidation stage; or the transformation stage of a water-based catalyst precursor to a slurry catalyst. In one embodiment, the promoter metal precursor feedstock is split into portions, the first portion is for the sulfiding step, the second portion is for the promotion step; and optionally the third portion is to be added to the transformation step in the mixing of the sulfided promoted catalyst precursor with a hydrocarbon diluent to form the slurry catalyst. In another embodiment, the Primary metal precursor feedstock is split into portions.

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Номер записи: 9
05-07-2012 дата публикации

Methods for preparing ethylene glycol from polyhydroxy compounds

Номер: US20120172633A1
Автор: Aiqin Wang, Mingyuan Zheng, Tao Zhang, Zhijun TAI
Принадлежит: Dalian Institute of Chemical Physics of CAS

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

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Номер записи: 10
08-11-2012 дата публикации

Stable Sub-Micron Titania Sols

Номер: US20120283092A1
Автор: David M. Chapman
Принадлежит: Millennium Inorganic Chemicals Inc

The present invention is directed to compositions and processes for the production of stable, alkaline, high solids, low viscosity, low surface tension, low flammability, sub-micron titania sols that have minimal offensive odor and methods of their use. Compositions of the present invention include, for example, mixtures of strong and weak organic bases used as dispersants to stabilize the titania sols. The dispersant mixtures have been found to result in relatively high titania solids content, low surface tension, low viscosity suspensions that are low in flammability. Sols produced according to the present invention can be used, for example, in catalytic applications such as catalyst supports for diesel emission control, or in pollutant photocatalyst applications in which it is desirable to have the titania in sol form.

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Номер записи: 11
29-11-2012 дата публикации

Process for preparing an alkene

Номер: US20120302810A1
Автор: Stephen Roy Partington
Принадлежит: Individual

A process for the preparation of an alkene from an oxygenate comprising contacting a reactant feedstream comprising at least one oxygenate reactant and water with a supported heteropolyacid catalyst at a temperature of at least 170° C., wherein the process is initiated using a start-up procedure comprising the following steps: (i) heating the supported heteropolyacid catalyst to a temperature of at least 220° C.; (ii) maintaining the heat-treated supported heteropolyacid catalyst of step (i) at a temperature of at least 220° C. for a time sufficient to remove bound water from the heteropolyacid component of the supported heteropolyacid catalyst; and (iii) whilst maintaining the supported heteropolyacid catalyst of step (ii) at a temperature of at least 220° C., contacting the supported heteropolyacid catalyst with the reactant feedstream having a temperature of at least 220° C.

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Номер записи: 12
14-03-2013 дата публикации

METHOD OF SUPPRESSING INCREASE IN SO2 OXIDATION RATE OF NOx REMOVAL CATALYST

Номер: US20130065750A1
Автор: Katsumi Nochi, Masashi Kiyosawa
Принадлежит: Mitsubishi Heavy Industries Ltd

In a NO x removal catalyst used for removing nitrogen oxide in flue gas, when a silica (Si) component as an inhibitor that causes an increase in an SO 2 oxidation rate accumulates on a surface of the NO x removal catalyst, the silica component accumulating on the surface of the NO x removal catalyst is dissolved, thereby regenerating the catalyst. Accordingly, the inhibitor such as the silica component covering the surface of the NO x removal catalyst can be removed, thereby enabling to provide a catalyst without having an increase in the SO 2 oxidation rate of the regenerated NO x removal catalyst.

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Номер записи: 13
14-03-2013 дата публикации

COMPONENT HAVING A CATALYTIC SURFACE, METHOD FOR PRODUCING SAME, AND USE OF SAID COMPONENT

Номер: US20130065752A1
Автор: Arndt Axel, Doye Christian, Krüger Ursus, Pyritz Uwe
Принадлежит:

A component has a catalyst surface including metal regions and regions of MnO2 contacting the former, wherein the metal regions are made of Co and/or Sn and/or Zn (or alloys of said metals). Said material pairings achieve a significantly improved catalytic effect in comparison to the pure metals. Said surfaces can be used, for example, in room air purification for reducing ozone content. The surface can be applied, for example, by coating the component, wherein the metal region and the region of MnO2 are applied in two layers. 120-. (canceled)21. A component part comprising:a catalyst surface comprising metallic regions of Co or Sn or Zn or alloys of at least one of these metals, and{'sub': '2', 'regions of MnOin contact with the metallic regions,'}{'sub': '2', 'wherein the regions of MnOcomprise nanoparticles having a diameter greater than 100 nm.'}22. The component part of claim 21 , wherein the manganese oxide comprises the γ polymorph of MnO.23. The component part of claim 22 , wherein the structural proportion of the manganese oxide present in the γ polymorph is more than 50% by weight.24. The component part of claim 21 , wherein the surface area proportion of the regions of MnOin relation to the sum of the metallic regions of Co or Sn or Zn or alloys of at least one of these metals is between 30 and 60%.25. The component part of claim 21 , comprising a metallic material which provides the metallic region of Co or Sn or Zn or alloys of at least one of these metals claim 21 , and an only partly covering layer of MnOhas been applied to this component part.26. The component part of claim 21 , comprising a ceramic which provides the region of MnO claim 21 , and wherein a partial covering layer of Co or Sn or Zn or alloys of at least one of these metals is applied to the component part.27. The component part of claim 21 , comprising a coating which provides the metallic regions of Co or Sn or Zn or alloys of at least one of these metals and the regions of MnOon the ...

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Номер записи: 14
21-03-2013 дата публикации

Process for Vapor Phase Hydrogenation

Номер: US20130072728A1
Автор: Johnston Victor J., Potts John L., Weiner Heiko, Wollrab Radmila
Принадлежит: Celanese International Corporation

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

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Номер записи: 15
28-03-2013 дата публикации

COMPONENT HAVING A CATALYTIC SURFACE, METHOD FOR PRODUCING SAME AND USE OF SAID COMPONENT

Номер: US20130079218A1
Автор: Arndt Axel, Doye Christian, Krüger Ursus, Pyritz Uwe
Принадлежит:

A component includes a catalyst surface having regions of CeO2 and regions of MnO2 that contact the regions of CeO2. Said material pairings may provide an improved catalytic effect compared to pure oxides. Said surfaces can, for example, also be used in indoor air purification to reduce the ozone content. The surface can, for example, be applied by coating the component and processed by cold-gas spraying of, for example, particles made of MnO2, to which CeO2 is applied. 117-. (canceled)18. A component part , comprising:{'sub': '2', 'a catalyst surface including regions of CeO,'}{'sub': 2', '2, 'regions of MnOin contact with the regions of CeO, the oxide particles covering only regions of the catalyst surface, and'}{'sub': '2', 'metallic regions of Ag or Ni or Co or Cu or Sn or Zn or alloys of at least one of these metals provided to the catalyst surface, the metallic regions adjoining the regions of MnO.'}19. The component part of claim 18 , wherein the manganese oxide comprises the γ polymorph of MnO.20. The component part of claim 19 , wherein the structural proportion of the manganese oxide present in the γ polymorph is more than 50% by weight.21. The component part of claim 18 , wherein the regions of CeOand the regions of MnOare provided in a coating provided on the catalyst surface.22. The component part of claim 21 , wherein:the component part comprises Ag or Ni or Cu or Co or Sn or Zn or alloys of at least one of these metals, and{'sub': 2', '2, 'the coating is applied to the component part as a partly covering ceramic layer of CeOand MnO, such that the component additionally provides a metallic region for the catalyst surface.'}23. The component part of claim 21 , wherein:{'sub': 2', '2, 'the coating comprises a ceramic layer that provides the regions of MnOand CeO, and'}the ceramic layer is partially covered by a metallic layer of Ag or Ni or Cu or Co or Sn or Zn or alloys of at least one of these metals.24. The component part of claim 21 , wherein the ...

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Номер записи: 16
04-04-2013 дата публикации

Novel formulation of hexa-aluminates for reforming fuels

Номер: US20130085062A1
Автор: Magali S. Ferrandon
Принадлежит: UChicago Argonne LLC

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

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Номер записи: 17
04-04-2013 дата публикации

Porous polymer supported polyoxometalates

Номер: US20130085191A1
Автор: Matthew Laskoski
Принадлежит: US Department of Navy

A composition for the destruction of chemical warfare agents and toxic industrial chemicals having a polyoxometalate (POM) attached to an amine, carboxylic acid, or ammonium substituted porous polymer. Also disclosed is a method for attaching a POM to an amine, carboxylic acid, or ammonium substituted porous polymer by (1) dissolving the POM in water or an organic solvent, adding the functionalized porous polymer, whereby the POM ionically attaches to the amine, carboxylic acid or ammonium group, or (2) heating the POM and functionalized polymer in the presence of a dehydrating agent whereby an imide bond is produced between the POM and the functionality on the porous polymer.

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Номер записи: 18
11-04-2013 дата публикации

SYNTHESIS OF ULTRASMALL METAL OXIDE NANOPARTICLES

Номер: US20130090511A1
Автор: Soultanidis Nikolaos, Wong Michael S.
Принадлежит: William Marsh Rice University

The invention generally relates to the ultrasmall MOnanoparticles that are made in a solvothermal method using water soluble inorganic ammonium salt precursors of the MOand organic amines, and slow heating to generate uniform ultrasmall MOnanoparticles of 5 nm or less, as well as methods to make and use same. 1. A method of making ultrasmall metal oxide nanoparticles , comprising;a) placing water soluble, inorganic ammonium oxometalate precursor in a reactor;b) adding an excess of amine surfactant to said reactor,c) optionally adding diols or amine oxides to said reactor;d) heating the reactor until the ammonium oxometalate precursor structure collapses and the nucleation stage generates ultrasmall metal oxide nanoparticles of average size≦5 nm.2. The method of claim 1 , wherein the ultrasmall metal oxide nanoparticles have about 20-50 metal atoms per nanoparticle.3. The method of wherein the ammonium oxometalate precursor is selected from the group consisting of ammonium metatungstate claim 1 , ammonium paratungstate claim 1 , phosphotungstic acid hydrate claim 1 , ammonium metamolybdate tetrahydrate claim 1 , ammonium metavanadate claim 1 , ammonium pentaborate octahydrate claim 1 , ammonium hexachloroosmate(IV) claim 1 , ammonium chromate claim 1 , ammonium perrhenate claim 1 , ammonium dihydrogenphosphate claim 1 , ammonium phosphomolybdate hydrate claim 1 , ammonium hexachloroiridate(IV) claim 1 , ammonium tetrathiomolybdate claim 1 , ammonium hexachloropalladate(IV) claim 1 , ammonium hexachlororhodate(III) claim 1 , and ammonium dichromate.4. The method of claim 1 , wherein the metal oxide is WO claim 1 , MoO claim 1 , VOor a doped variation of WO claim 1 , MoO claim 1 , and VO.5. The method of claim 1 , wherein the amine surfactant is oleylamine.6. A method of making ultrasmall metal oxide nanoparticles claim 1 , comprising;a) placing 1 part of water soluble, inorganic ammonium oxometalate precursor, which is fully oxidized and has structural stability up to ...

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Номер записи: 19
02-05-2013 дата публикации

Method for MN3O4 nanoparticles by solid-state decomposition of exfoliated MNO2 nanosheet

Номер: US20130108542A1
Автор: Hyun Jung, Na-ra Lee
Принадлежит: Industry Academic Cooperation Foundation of Dongguk University

A method of preparing one-dimensional trimanganese tetroxide (Mn 3 O 4 ) nanoparticles from an exfoliated two-dimensional manganese dioxide (MnO 2 ) nanosheet using a solid-state decomposition method, and Mn 3 O 4 nanoparticles prepared according to the method are provided. The Mn 3 O 4 nanoparticles can be prepared at a very low temperature without using an organic solvent or a chemical additive, compared to conventional synthesis methods.

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Номер записи: 20
09-05-2013 дата публикации

CATALYST COMPOSITIONS FOR CONVERSION OF VEGETABLE OILS TO HYDROCARBON PRODUCTS IN THE DIESEL BOILING RANGE AND PROCESS OF PREPARATION THEREOF

Номер: US20130116488A1
Автор: GOKAK Dattatraya Tammannashastri, JOSE N., RAI Pragya, THOTA Chiranjeevi, Viswanathan Poyyamani Swaminathan
Принадлежит: BHARAT PETROLEUM CORPORATION LIMITED

The present invention relates to a catalyst composition for conversion of vegetable oils to hydrocarbon products in the diesel boiling range, comprising a porous support; Group III A or VA element in the range of 1-10 wt %; Group VI B elements in the range of 1 to 20 wt %; Group VIII B elements in range of 0.01 to 10 wt %. The present invention further provides the process for preparing the catalyst composition for conversion of vegetable oils to hydrocarbon products in the diesel boiling range. The present invention also provides the process for conversion of vegetable oils to hydrocarbon products in the diesel boiling range using the catalyst composition or discarded refinery spent hydro-treating catalyst. 1. A catalyst composition for conversion of vegetable oils to hydrocarbon products in the diesel boiling range comprising:(i) a porous support 85-95 wt %(ii) Group III A or VA elements in the range of about 1 to 10 wt %(iii) Group VI B elements in the range of about 1 to 20 wt %(iv) Group VIII B elements in range of about 0.01 to 10 wt %.2. The catalyst composition as claimed in claim 1 , wherein said porous support comprises at least 25% of aluminium oxide.3. The catalyst composition as claimed in claim 2 , wherein said porous support has unimodel pore size distribution in the range of about 20 to 250 Å; surface area in the range of about 200-250 m/g; bulk density in the range of about 0.80 to 0.85 g/cc; and pore volume in the range of about 0.5 to 0.8 cc/g.4. The catalyst composition as claimed in claim 1 , wherein said Group IIIA element is Boron in the range of about 1 to 10 wt % preferably about 1 to 5 wt %.5. The catalyst composition as claimed in claim 1 , wherein said Group VA element is Phosphorus about 1 to 10 wt % preferably 1 to 5 wt %.6. The catalyst composition as claimed in claim 1 , wherein said Group VIB element is Molybdenum in the range of about 10 to 15 wt % claim 1 , more preferably in the range of about 12 to 14 wt % or Tungsten preferably ...

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Номер записи: 21
20-06-2013 дата публикации

Gas fired catalytic heater

Номер: US20130157203A1
Автор: Harold A. Roozen, Jarek Szunkarczuk, Kowlasar Misir
Принадлежит: CC/ Thermal Tech Inc

A gas fired catalytic heater is provided that foregoes the need for an electrical heating element to provide the activation energy for the hydrocarbon catalyst pad. An alcohol self-igniting catalyst pad is used to provide the activation energy to the hydrocarbon catalyst pad thereby removing dependence of the heater on an outside electrical energy source to initiate start-up of the heater. The catalyst pad includes a flexible wash coat; a noble metal dispersed on the wash coat; an anti-sintering element saturating the wash coat; and a catalyst promoter saturating the wash coat.

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Номер записи: 22
20-06-2013 дата публикации

Exhaust gas purifying catalyst and production method thereof

Номер: US20130157844A1
Автор: Hirofumi Yasuda, Hironori Wakamatsu, Jun Ikezawa, Katsuo Suga, Kazuyuki Shiratori, Makoto Aoyama, Masanori Nakamura
Принадлежит: Individual

An object is to maintain an effect of enhancing activity of noble metal particles by transition metal without increasing production cost and an environmental load. An exhaust gas purifying catalyst 1 is composed of: noble metal particles 2 ; first compounds 3 which contact the noble metal particles 2 and suppress movement of the noble metal particles 2 ; and second compounds 4 which contain the noble metal particles 2 and the first compounds 3 , suppress the movement of the noble metal particles 2 , and suppress coagulation of the first compounds 3 following mutual contact of the first compounds 3 , wherein the first compounds 3 support the noble metal particles 2 , and simplexes or aggregates of the first compounds 3 supporting the noble metal particles 2 are included in section partitioned by the second compounds 4.

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Номер записи: 23
27-06-2013 дата публикации

COMPOSITION BASED ON CERIUM, ZIRCONIUM AND TUNGSTEN, PREPARATION PROCESS AND USE IN CATALYSIS

Номер: US20130164201A1
Автор: Harris Deborah Jane, Hernandez Julien, Jones Clare, Jorge Coelho Marques Rui, Rohart Emmanuel
Принадлежит:

A composition based on cerium, zirconium and tungsten is described. The composition has a content expressed as an oxide, of which cerium is from 5% to 30% of the composition, tungsten is from 2% to 17% of the composition, and the remainder of the composition is zirconium. After aging at 750° C. under an air atmosphere including 10% water, it has a two-phase crystallographic structure having a tetragonal zirconia phase and a monoclinic zirconia phase, with no presence of a crystalline phase including tungsten. The composition can be used as a catalyst, especially in an SCR process. 1. A composition comprising cerium , zirconium and tungsten , wherein the composition has the following mass contents , expressed as oxide:cerium oxide: from 5% tobctwccn 5% and 30%;tungsten oxide: from 2% tobctwccn 2% and 17%;the remainder as zirconium oxide;and in that after aging at 750° C. in an air atmosphere comprising 10% water, it has a two-phase crystallographic structure comprising a tetragonal zirconia phase and a monoclinic zirconia phase, with no presence of a crystalline phase comprising tungsten.2. The composition as defined in claim 1 , wherein after aging claim 1 , the composition has a specific surface area of at least 30 m/g.3. The composition as defined in claim 1 , wherein after aging claim 1 , the composition has a specific surface area of at least 40 m/g.4. The composition as defined in claim 1 , wherein the composition has a two-phase crystallographic structure in which the tetragonal zirconia phase and the monoclinic zirconia phase are in a ratio of at least 5.5. The process as defined in claim 1 , wherein the process is comprised of the following steps:{'sub': 2', '3, '(a) preparing an aqueous solution comprising sulfate anions and a zirconium salt, which can optionally be zirconium oxychloride, in proportions such that the ratio ZrO/SOis from 1/0.40 to 1/0.52,'}(b) cooling the solution to a temperature below 25° C.,(c) adding an alkaline compound to precipitate ...

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Номер записи: 24
27-06-2013 дата публикации

HETEROPOLY ACID PROMOTED CATALYST FOR SCR OF NOx WITH AMMONIA

Номер: US20130164205A1
Автор: Anders Riisager, Rasmus Fehrmann, Sankar Reddy Putluru Siva
Принадлежит: Danmarks Tekniskie Universitet

The present invention concerns the selective removal of nitrogen oxides (NOx) from gases. In particular, the invention concerns a process, a highly alkali metal resistant heteropoly acid promoted catalyst and the use of said catalyst for removal of NOx from exhaust or flue gases, said gases comprising alkali or earth alkali metals. Such gases comprise for example flue gases arising from the burning of biomass, combined biomass and fossil fuel, and from waste incineration units. The process comprises the selective catalytic reduction (SCR) of NOx, such as nitrogen dioxide (NO 2 ) and nitrogen oxide (NO) with ammonia (NH 3 ) or a nitrogen containing compound selected from ammonium salts, urea or a urea derivative or a solution thereof as reductant.

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Номер записи: 25
27-06-2013 дата публикации

NANOWIRE CATALYSTS AND METHODS FOR THEIR USE AND PREPARATION

Номер: US20130165728A1
Автор: Alcid Marian, Cizeron Joel M., Gamoras Joel, KARSHTEDT Dmitry, McCormick Jarod, Merzlyak Anna, Nyce Greg, Ras Erik-Jan, Rosenberg Daniel, Rumplecker Anja, Schammel Wayne P., Scher Erik C., Tkachenko Alex, Zurcher Fabio R.
Принадлежит: SILURIA TECHNOLOGIES, INC.

Nanowires useful as heterogeneous catalysts are provided. The nanowire catalysts are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane to C2 hydrocarbons. Related methods for use and manufacture of the same are also disclosed. 1. A catalytic nanowire comprising a combination of at least four different doping elements , wherein the doping elements are selected from a metal element , a semi-metal element and a non-metal element.2. The catalytic nanowire of claim 1 , wherein the catalytic nanowire comprises a metal oxide.3. The catalytic nanowire of claim 1 , wherein the catalytic nanowire comprises a lanthanide metal.4. The catalytic nanowire of claim 1 , wherein the catalytic nanowire comprises LaO claim 1 , NdO claim 1 , YbO claim 1 , EuO claim 1 , SmO claim 1 , YO claim 1 , CeO claim 1 , PrOor combinations thereof.5. The catalytic nanowire of claim 1 , wherein the catalytic nanowire comprises Ln1Ln2O claim 1 , wherein Ln1 and Ln2 are each independently a lanthanide element claim 1 , wherein Ln1 and Ln2 are not the same and x is a number ranging from greater than 0 to less than 4.6. The catalytic nanowire of claim 1 , wherein the catalytic nanowire comprises LaNdO claim 1 , wherein x is a number ranging from greater than 0 to less than 4.7. The catalytic nanowire of claim 1 , wherein the catalytic nanowire comprises LaNdO claim 1 , LaNdO claim 1 , LaNdO claim 1 , LaNdO claim 1 , LaNdO claim 1 , LaNdO claim 1 , LaNdOor combinations thereof.8. The catalytic nanowire of claim 1 , wherein the catalytic nanowire comprises a lanthanide oxide.9. The catalytic nanowire of claim 8 , wherein the lanthanide oxide comprises a mixed oxide.10. The catalytic nanowire of claim 9 , wherein the mixed oxide comprises Y—La claim 9 , Z—La claim 9 , P—La claim 9 , Ce—La or combinations thereof.11. The catalytic nanowire of claim 1 , wherein the doping elements are selected from Eu claim 1 , Na claim 1 , Sr claim 1 , Ca claim 1 , Mg claim 1 , Sm ...

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Номер записи: 26
27-06-2013 дата публикации

ZINC AND/OR MANGANESE ALUMINATE CATALYST USEFUL FOR ALKANE DEHDYROGENATION

Номер: US20130165729A1
Автор: Laha Subhash Chandra, Selvanathan Antonisamy
Принадлежит: SAUDI BASIC INDUSTRIES CORPORATION

The present invention relates to a catalyst composition suitable for the dehydrogenation of alkanes having 2-8 carbon atoms comprising zinc and/or manganese aluminate, optionally further comprising sodium (Na), potassium (K), caesium (Cs), rubidium (Rb), strontium (Sr), barium (Ba), magnesium (Mg), calcium (Ca), gallium (Ga), germanium (Ge),tin (Sn), copper (Cu), zirconium (Zr), cobalt (Co), tungsten (W) or mixtures thereof, wherein said catalyst composition preferably is essentially platinum free. Furthermore, a method for preparing said catalyst composition and a process for dehydrogenating alkanes having 2-8 carbon atoms, preferably isobutane, comprising contacting the said catalyst composition with said alkanes is provided. 1. A catalyst composition suitable for the dehydrogenation of alkanes having 2-8 carbon atoms comprising zinc and/or manganese aluminate , wherein the relative molar ratios of the elements comprised in said composition are represented by the formula{'br': None, 'sub': 1-y', 'y', '2', '4, 'M/ZnMnAlO'}wherein:0-5 wt-% M based on the zinc and/or manganese aluminate is present in the catalyst composition and M is selected from the group of sodium (Na), potassium (K), caesium (Cs), rubidium (Rb), strontium (Sr), barium (Ba), magnesium (Mg), calcium (Ca), gallium (Ga), germanium (Ge), or tin (Sn), copper (Cu), zirconium (Zr), cobalt (Co), tungsten (W) and mixtures thereof, andy is in the range of 0-1.2. The catalyst composition according to claim 1 , wherein said catalyst composition is essentially platinum free.3. The catalyst composition according to claim 1 , wherein the zinc and/or manganese aluminate has spinel structure.4. The catalyst composition according to any claim 1 , wherein y=0.01-0.99.5. The catalyst composition according to claim 1 , wherein M is 0.01-0.1 wt-% gallium (Ga) or tin (Sn).6. The catalyst composition according to claim 1 , wherein in case y stands for 0 claim 1 , M is present in an amount from 0.01 to 1.Swt % based on ...

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Номер записи: 27
04-07-2013 дата публикации

Photoactive Material Comprising Nanoparticles of at Least Two Photoactive Constituents

Номер: US20130168228A1
Автор: Ozin Geoffrey A., Redel Engelbert
Принадлежит:

A photoactive material including nanoparticles of photoactive first and second constituents. The first and second constituents have respective conduction band energies, valence band energies and electronic band gap energies to enable photon-driven generation and separation of charge carriers in each of the first and second constituents by absorption of light in the solar spectrum. The first and second constituents are provided in an alternating layered arrangement of respective first and second layers or are mixed together in a single layer. The nanoparticles have diameters smaller than wavelengths of light in the solar spectrum, to provide optical transparency for absorption of light. The charge carriers, upon photoactivation, are able to participate in redox reactions occurring in the photoactive material. The photoactive material may enable redox reactions of carbon dioxide with at least one of hydrogen and water to produce a fuel. 1. A photoactive material comprising:nanoparticles of at least one first photoactive constituent; andnanoparticles of at least one second photoactive constituent;the at least one first and second constituents each being selected to have respective conduction band energies, valence band energies and electronic band gap energies, to enable photon-driven generation and separation of charge carriers in each of the at least one first and second constituents by absorption of light in the solar spectrum;the nanoparticles of each of the at least one first and second constituents being mixed together to form a layer;the nanoparticles of each of the at least one first and second constituents having diameters smaller than wavelengths of light in the solar spectrum, to provide optical transparency for absorption of light; andwherein the charge carriers, upon photoactivation, are able to participate in redox reactions occurring in the photoactive material.2. A photoactive material comprising:nanoparticles of at least one first photoactive ...

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Номер записи: 28
04-07-2013 дата публикации

PHOTOCATALYST POWDER AND PRODUCTION METHOD THEREOF

Номер: US20130172175A1
Автор: KIM Jee Yong, PARK Rae Eun
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Disclosed herein are photocatalyst powder and a production method thereof, and by having photocatalyst particles corn binded without reduction of a specific surface area, the reduction of the specific surface area is nearly none while the pores are developed, as well as the absorption rate with respect to light is superior, the method of producing photocatalyst powder includes forming initial photocatalyst powder by molding nanoparticles of photocatalyst substance into a certain shape through extrusion, and splitting the initial photocatalyst powder into a plurality of photocatalyst powder by injecting the initial photocatalyst powder into a predetermined splitting solution, the initial photocatalyst powder being split into the plurality of photocatalyst powder by the predetermined spliting solution. 1. A method of producing photocatalyst powder , comprising:forming an initial photocatalyst powder by molding nanoparticles of photocatalyst substance into a certain shape through extrusion; andsplitting the initial photocatalyst powder into a plurality of photocatalyst powder by injecting the initial photocatalyst powder into a predetermined splitting solution, the initial photocatalyst powder being split into the plurality of photocatalyst powder by the predetermined splitting solution.2. The method of claim 1 , further comprising:calcining the split photocatalyst powder at a predetermined temperature and at a predetermined pressure; andsintering the calcinated photocatalyst powder at a predetermined temperature and at a predetermined pressure.3. The method of claim 1 , wherein:the predetermined splitting solution is at least one selected from the group comprising amorphous solution, colloidal solution, distilled water and solution having visible ray inducing substance being at least one selected from the group comprising K, Mn and Na.4. The method of claim 1 , wherein:the predetermined splitting solution comprises amorphous solution having same substance as the ...

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Номер записи: 29
04-07-2013 дата публикации

Low-Alkali Catalyst Material and Process for Preparation Thereof

Номер: US20130172176A1
Автор: Gesenhues Ulrich, Grothe Sonja, Optehostert Regina, Proft Bernd, Rohe Bernd
Принадлежит: SACHTLEBEN CHEMIE GMBH

A catalyst material, more specifically a catalyst material based on TiO2/SiO2 in particulate form having a content of metal in the form of the metal oxide or metal oxide precursor, to processes for preparation thereof and to the use thereof in chemical catalysis, especially for removal of pollutants, such as nitrogen oxides from combustion gases 1. A catalyst material comprising:{'sub': 2', '2, 'sup': '2', 'TiO—SiOin particle form having an alkali metal content of less than 300 ppm and a specific BET surface area of 50-300 m/g,'}{'sub': '2', 'sup': '3', 'wherein the catalyst material comprises the TiOin anatase form and has a mesopore volume of greater than 0.35 cm/g, measured by nitrogen porosimetry, and the specific surface area is reduced by not more than 30% on thermal stressing at 650° C. for 50 hours.'}2. The catalyst material based on TiO—SiOas claimed in having a mesopore volume of greater than 0.5 cm/g claim 1 , measured by nitrogen porosimetry.3. The catalyst material based on TiO—SiOas claimed in having a specific BET surface area of 90-200 m/g.4. The catalyst material based on TiO—SiOas claimed in further comprising a content of metal oxide and/or metal oxide precursor.5. The catalyst material based on TiO—SiOas claimed in which further comprises vanadium oxide claim 4 , tungsten oxide claim 4 , or precursors thereof.6. A process for producing the low-alkali-metal catalyst material as claimed in comprising:{'sub': '2', 'reacting 1) a Ti-containing solution in the form of a titanyl sulfate solution or titanium sulfate having a concentration of dissolved Ti of, converted to an oxide basis, from 10 to 250 g of TiOper liter of solution and 2) a low-alkali-metal solution of hydrated precursors of one or more Si-oxygen compounds in the presence of ammonia; and'}filtering off and washing the obtained product; andsubjecting the product to a thermal treatment and optionally drying,wherein the hydrated precursors of Si-oxygen compounds comprise silicic acid, ...

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Номер записи: 30
11-07-2013 дата публикации

Hydrogenation Catalysts with Cobalt-Modified Supports

Номер: US20130178661A1
Автор: Heiko Weiner, Radmila Wollrab, Zhenhua Zhou
Принадлежит: Celanese International Corp

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

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Номер записи: 31
18-07-2013 дата публикации

Transparent Photocatalyst Coating

Номер: US20130180932A1
Автор: Fukumura Takuya, Mukherjee Rajesh, Sambandan Eka
Принадлежит: NITTO DENKO CORPORATION

Photocatalyst compositions and elements exhibiting desired photocatalytic activity levels and transparency. 1. A photocatalytic composition comprising a photocatalyst and a co-catalyst.2. The photocatalytic composition of claim 1 , wherein the co-catalyst improves the catalytic performance of the photocatalyst by at least about 1.2 claim 1 , as measured by the rate of photocatalytic decomposition of acetaldehyde.3. The photocatalytic composition of claim 1 , wherein the photocatalyst has a band gap of about 1.5 eV to about 3.5 eV.4. The photocatalytic composition of claim 1 , wherein the photocatalyst comprises tungsten or titanium.5. The photocatalytic composition of claim 1 , where the photocatalyst is doped with a naturally occurring element.6. The photocatalyst composition of claim 1 , where the photocatalyst is loaded with a transition metal claim 1 , a transition metal oxide claim 1 , or a transition metal hydroxide.7. The photocatalyst of claim 1 , wherein the photocatalyst comprises WO claim 1 , TiO claim 1 , or Ti(O claim 1 ,C claim 1 ,N):Sn.8. The photocatalytic composition of claim 1 , wherein the co-catalyst is a metal oxide capable of being reduced by electron transfer from the conduction band of the photocatalyst.9. The photocatalytic composition of claim 1 , wherein the co-catalyst is a metal oxide capable of reducing Oby electron transfer.10. The photocatalytic composition of claim 1 , wherein the co-catalyst is capable of converting atmospheric Oto superoxide radical ion.11. The photocatalytic composition of claim 10 , wherein the co-catalyst is capable of converting atmospheric Oto superoxide radical ion under ambient conditions.12. The photocatalytic composition of claim 1 , wherein the co-catalyst comprises anatase TiO claim 1 , SrTiO claim 1 , KTaO claim 1 , or KNbO.13. The photocatalytic composition of claim 1 , wherein the co-catalyst comprises InO claim 1 , TaO claim 1 , anatase TiO claim 1 , rutile TiO claim 1 , a combination of anatase and ...

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Номер записи: 32
25-07-2013 дата публикации

CATALYST FOR REMOVING NITROGEN OXIDES FROM THE EXHAUST GAS OF DIESEL ENGINES

Номер: US20130189172A1
Автор: Malmberg Stephan, Mueller Elena, Soeger Nicola, Spurk Paul
Принадлежит: UMICORE AG & CO. KG

The invention relates to a catalyst for removal of nitrogen oxides from the exhaust gas of diesel engines, and to a process for reducing the level of nitrogen oxides in the exhaust gas of diesel engines. The catalyst consists of a support body of length L and of a catalytically active coating which in turn may be formed from one or more material zones. The material zones comprise selectively catalytically reductive (SCR-active) mixed oxide consisting of cerium oxide, zirconium oxide, rare earth sesquioxide and niobium oxide and optionally tungsten oxide. In addition, the material zones comprise at least one compound selected from the group consisting of barium oxide, barium hydroxide, barium carbonate, strontium oxide, strontium hydroxide, strontium carbonate, praseodymium oxide, lanthanum oxide, magnesium oxide, mixed magnesium/aluminum oxide, alkali metal oxide, alkali metal hydroxide, alkali metal carbonate and mixtures thereof. Noble metal may optionally also be present in the catalyst. 1. A catalyst for removing nitrogen oxides from the exhaust gas of diesel engines , consisting of a support body of length L and a catalytically active coating composed of one or more material zones comprisinga) a catalytically active mixed oxide consisting of cerium oxide, zirconium oxide, rare earth sesquioxide and niobium oxide and optionally tungsten oxide; andb) at least one compound selected from the group consisting of barium oxide, barium hydroxide, barium carbonate, strontium oxide, strontium hydroxide, strontium carbonate, praseodymium oxide, lanthanum oxide, magnesium oxide, mixed magnesium/aluminum oxide, alkali metal oxide, alkali metal hydroxide, alkali metal carbonate and mixtures thereof.2. The catalyst as claimed in claim 1 , wherein the catalytically active mixed oxide claim 1 , based on the total amount thereof claim 1 , has the following composition:{'sub': '2', 'CeO: 15-50% by wt.'}{'sub': 2', '5, 'NbO: 3-25% by wt.'}{'sub': 2', '3, 'REO: 3-10% by wt.'}{'sub ...

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Номер записи: 33
01-08-2013 дата публикации

COMPOSITE, CATALYST INCLUDING THE SAME, FUEL CELL AND LITHIUM AIR BATTERY INCLUDING THE SAME

Номер: US20130196237A1
Автор: JIN Seon-ah, LEE Kang-hee, PAK Chan-ho, YOO Dae-jong
Принадлежит:

A composite including: a carbonaceous material; and a solid solution including a first metal and a cerium oxide, wherein the solid solution is disposed on the carbonaceous material. 1. A composite comprising:a carbonaceous material; anda solid solution comprising a first metal and a cerium oxide, wherein the solid solution is disposed on the carbonaceous material.2. The composite of claim 1 , wherein the first metal is at least one metal selected from Groups 3-8 claim 1 , 10-14 claim 1 , and 16.3. The composite of claim 2 , wherein the first metal is at least one selected from manganese (Mn) claim 2 , vanadium (V) claim 2 , copper (Cu) claim 2 , zinc (Zn) claim 2 , iron (Fe) claim 2 , cobalt (Co) claim 2 , and titanium (Ti).4. The composite of claim 3 , wherein the first metal is manganese.5. The composite of claim 1 , wherein the solid solution is present in an amount of about 5 to about 90 parts by weight claim 1 , based on 100 parts by weight of the composite.6. The composite of claim 1 , wherein an amount of the first metal is about 0.1 to about 1.5 moles claim 1 , based on 1 mole of cerium of the cerium oxide.7. The composite of claim 1 , wherein the composite comprises a composition represented by at least one selected from Formula 1 and Formula 2:{'br': None, 'sup': '1', 'sub': x', '2, 'MO—CeO/C\u2003\u2003Formula 1'}{'sup': '1', 'claim-text': {'br': None, 'sub': y', '1-y', '2, 'sup': '1', 'CeMO/C\u2003\u2003Formula 2'}, 'wherein in Formula 1, 1≦x≦3, Mis the first metal, and'}{'sup': '1', 'wherein in Formula 2, 0.01≦y≦0.99, Mis the first metal, and in Formulas 1 and 2, independently, the first metal is at least one metal selected from Groups 3-8, 10-14, and 16.'}8. The composite of claim 7 , wherein the first metal is manganese.9. A catalyst comprising the composite of and a second metal.10. The catalyst of claim 9 , wherein the second metal is at least one metal selected from Groups 8-11.11. The catalyst of claim 10 , wherein the second metal is at least one ...

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Номер записи: 34
01-08-2013 дата публикации

PROCESS FOR PREPARING ACROLEIN FROM GLYCEROL OR GLYCERIN

Номер: US20130197258A1
Автор: Belliere-Baca Virginie, Lauriol-Garbey Pascaline, Loridant Stéphane, Millet Jean-Marc
Принадлежит:

The invention concerns a method for preparing acrolein from glycerol or glycerine, wherein dehydration of the glycerol or glycerine is achieved in the presence of a catalyst based on zirconium oxide and which active phase consists in at least 1. A method for preparing acrolein from glycerol or glycerine , wherein dehydration of the glycerol or glycerine is achieved in the presence of a catalyst based on zirconium oxide and which active phase comprises at leasta) a silicon oxide, a zirconium oxide and at least one metal M oxide, said metal being selected from tungsten, cerium, manganese, niobium, tantalum, vanadium and titanium,b) a titanium oxide, a zirconium oxide and at least one metal M oxide, said metal being selected from tungsten, cerium, manganese, niobium, tantalum, vanadium and silicon.2. The method according to claim 1 , wherein the active phase comprises at least a silicon oxide claim 1 , a zirconium oxide claim 1 , a tungsten oxide and at least one metal M oxide claim 1 , said metal being selected from cerium claim 1 , manganese claim 1 , niobium claim 1 , tantalum claim 1 , vanadium and titanium claim 1 ,3. The method according to claim 2 , wherein the metal is titanium claim 2 ,4. The method according to claim 1 , wherein at least one of the oxides of said catalyst a) and b) is supported.5. The method according to claim 1 , wherein the (Zr/sum of the elements Si claim 1 , Ti claim 1 , W and M claim 1 , different from Zr) molar ratio varies from 0.5 to 200.6. The method according to claim 5 , wherein said molar ratio varies from 1 to 100.7. The method according to claim 1 , wherein the glycerol is in aqueous solution at a concentration of at least 1% by weight.8. The method according to claim 7 , wherein the glycerol concentration of the aqueous solution varies from 10 to 50% by weight.9. The method according to claim 1 , wherein the catalyst is regenerated.10. A method for making 3-(methylthio)propionic aldehyde MMP claim 1 , 2-hydroxy-4- claim 1 , ...

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Номер записи: 35
08-08-2013 дата публикации

Ce-BASED COMPOSITE OXIDE CATALYST, PREPARATION METHOD AND APPLICATION THEREOF

Номер: US20130202513A1
Автор: Changbin Zhang, Fudong Liu, Hong He, Shaoxin Wang, Wenpo Shan, XiaoYan Shi
Принадлежит: Research Center for Eco Environmental Sciences of CAS

Disclosed is a Ce-based composite oxide catalyst for selective catalytic reducing nitrogen oxides with ammonia, which comprises Ce oxide and at least one oxide of transition metal except Ce. The Ce-based composite oxide catalyst is prepared by a simple method which uses non-toxic and harmless raw materials, and it has the following advantages: high catalytic activity, and excellent selectivity for generating nitrogen etc. The catalyst can be applied in catalytic cleaning plant for nitrogen oxides from mobile and stationary sources.

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Номер записи: 36
15-08-2013 дата публикации

Method for the preparation of a catalysed particulate filter and catalysed particulate filter

Номер: US20130210609A1
Автор: Keld Johansen
Принадлежит: Haldor Topsoe AS

Method for the preparation of a catalysed particulate filter and a particulate filter. The method comprises the steps of a) providing a catalyst wash coat with a first catalyst active in burning off of soot and a second catalyst active in selective catalytic reduction of nitrogen oxides; b) coating a particulate filter body with the catalyst wash coat on the dispersion side and the permeate side of the filter body and within partition walls of the filter body; and c) drying and heat treating the coated filter body to obtain the catalysed particulate filter.

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Номер записи: 37
15-08-2013 дата публикации

PROCESS FOR PREPARING OLEFINS FROM SYNTHESIS GAS USING A COBALT AND MANGANESE CONTAINING CATALYST

Номер: US20130210941A1
Автор: Verhaak Michiel Johannes Franciscus Maria
Принадлежит:

The invention relates to a process for preparing olefins from synthesis gas, wherein the synthesis gas is contacted with a catalyst which contains cobalt, manganese and a third element selected from the group consisting of aluminium, gallium, indium, thallium, tin, lead and bismuth. Further, the invention relates to a process for preparing such catalyst, and to the catalyst so obtained. 1. Process for preparing olefins from synthesis gas , wherein the synthesis gas is contacted with a catalyst which contains cobalt , manganese and a third element selected from the group consisting of aluminium , gallium , indium , thallium , tin , lead and bismuth.2. Process according to claim 1 , wherein the catalyst contains cobalt claim 1 , manganese and tin.3. Process according to claim 1 , wherein the catalyst is pre-reduced at a temperature within the range of from 400 to 500° C.4. Process for preparing a supported catalyst claim 1 , wherein the catalyst contains cobalt claim 1 , manganese and a third element selected from the group consisting of aluminium claim 1 , gallium claim 1 , indium claim 1 , thallium claim 1 , tin claim 1 , lead and bismuth claim 1 , and is prepared by co-precipitation of a manganese salt and a cobalt salt on a support claim 1 , followed by impregnation with a salt of the third element.5. Process according to claim 4 , wherein the catalyst contains cobalt claim 4 , manganese and tin.6. Catalyst obtainable by the process of .7. Catalyst which contains cobalt claim 4 , manganese and a third element selected from the group consisting of aluminium claim 4 , gallium claim 4 , indium claim 4 , thallium claim 4 , tin claim 4 , lead and bismuth.8. Catalyst according to claim 7 , which contains cobalt claim 7 , manganese and tin.9. Catalyst according to claim 6 , wherein the catalyst contains cobalt claim 6 , manganese and tin. The present invention relates to a process for preparing olefins from synthesis gas (syngas) using a catalyst which contains cobalt ...

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Номер записи: 38
29-08-2013 дата публикации

OXIDE CATALYST, PROCESS FOR PRODUCING OXIDE CATALYST, PROCESS FOR PRODUCING UNSATURATED ACID, AND PROCESS FOR PRODUCING UNSATURATED NITRILE

Номер: US20130225862A1
Автор: Ichihara Takeo, Kato Takaaki, TATENO Eri
Принадлежит: ASAHI KASEI CHEMICALS CORPORATION

Disclosed is a process for producing an oxide catalyst for use in the gas-phase catalytic oxidation reaction or the like of propane or the like, the process comprising the steps of: (I) obtaining a preparation containing compounds of Mo, V, Nb, and Sb or Te at the predetermined atomic ratios; (II) drying the preparation to obtain a dry powder; and (III) calcining the dry powder, wherein the step (III) comprises the step of calcining the dry powder in the presence of a compound containing W in the form of a solid to obtain a pre-stage calcined powder or a mainly calcined powder, or the step of calcining the dry powder and calcining the obtained pre-stage calcined powder in the presence of the solid to obtain a mainly calcined powder, the solid satisfies the predetermined conditions, and the oxide catalyst comprises a catalytic component having the predetermined composition. 1. A particulate oxide catalyst for use in the gas-phase catalytic oxidation reaction or the gas-phase catalytic ammoxidation reaction of propane or isobutane ,the oxide catalyst containing a Mo compound, a V compound, a Nb compound, a compound of at least one element selected from the group consisting of Sb and Te, a W compound, and an optional compound of at least one element selected from the group consisting of Mn, B, Ti, Al, Ta, an alkali metal, an alkaline earth metal, La, Ce, Pr, Yb, Co, Y, and Sc, at atomic ratios represented by the following formula (0), wherein {'br': None, 'sub': Mo', 'V', 'W', 'Nb', 'X', 'Z, 'C:C:C:C:C:C=1:a:w:c:x:z \u2003\u2003(0)'}, 'W is concentrated within the surface of the particle of the oxide catalyst and in proximity thereto{'sub': Mo', 'V', 'W', 'Nb', 'X', 'Z, 'wherein Crepresents the atomic ratio of Mo; Crepresents the atomic ratio of V; Crepresents the atomic ratio of W; Crepresents the atomic ratio of Nb; Crepresents the atomic ratio of at least one element selected from the group consisting of Sb and Te; Crepresents the atomic ratio of at least one ...

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Номер записи: 39
19-09-2013 дата публикации

CARBON CATALYST FOR HYDROGEN PRODUCTION, METHOD FOR PRODUCING CATALYST, AND METHOD FOR PRODUCING HYDROGEN USING CATALYST

Номер: US20130243687A1
Автор: Fujii Chihiro, Kobayashi Rieko, Ozaki Jun-ichi
Принадлежит:

Provided are a carbon catalyst for hydrogen production having an excellent catalytic activity, a production method therefor, and a method of producing hydrogen using the catalyst. The carbon catalyst for hydrogen production is a carbon catalyst, which is obtained by carbonizing a raw material including an organic substance and a transition metal, the catalyst being used for hydrogen production by thermal decomposition of a hydrocarbon compound and/or an oxygen-containing organic compound. Further, the carbon catalyst for hydrogen production may be obtained by loading an alkaline earth metal on a carbonized material produced by the carbonization. 1. A carbon catalyst for hydrogen production , which is obtained by carbonizing a raw material including an organic substance containing a nitrogen atom and 1 to 20% by mass of iron , cobalt , nickel or manganese , the catalyst being used for hydrogen production by thermal decomposition of a hydrocarbon compound and/or an oxygen-containing organic compound.2. The carbon catalyst for hydrogen production according to claim 1 , wherein the catalyst for hydrogen production is obtained by loading an alkaline earth metal on a carbonized material produced by the carbonization.3. The carbon catalyst for hydrogen production according to claim 1 , wherein the carbon catalyst for hydrogen production has a hydrogen dissociation activity of 10 mmol/g or more claim 1 , which is calculated claim 1 , in a hydrogen-deuterium exchange reaction using a reaction tube filled with a predetermined weight of the carbon catalyst for hydrogen production claim 1 , by dividing a total decrease in hydrogen gas by the predetermined weight when the reaction tube is heated from 40° C. to 600° C. at a temperature increase rate of 10° C./min in a mixed gas including the hydrogen gas claim 1 , deuterium gas claim 1 , and argon gas at a hydrogen flow rate of 10 mL/min claim 1 , a deuterium flow rate of 10 mL/min claim 1 , and an argon flow rate of 30 mL/min.4. ...

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Номер записи: 40
19-09-2013 дата публикации

Catalyst for hydrocarbon steam cracking, method of preparing the same and method of preparing olefin by using the same

Номер: US20130244868A1
Автор: Jonghun Song, Jun-Han Kang, Junseon Choi
Принадлежит: LG Chem Ltd

The present invention relates to a catalyst for hydrocarbon steam cracking, a method of preparing the same, and a method of preparing olefin by the hydrocarbon steam cracking by using the catalyst, and more specifically, to a catalyst for hydrocarbon steam cracking for preparing light olefin including an oxide catalyst (0.5≦j≦120, 1≦k≦50, A is transition metal, and x is a number satisfying conditions according to valence of Cr, Zr, and A and values of j and k) represented by CrZr j A k O x , wherein the composite catalyst is a type that has an outer radius r 2 of 0.5 R to 0.96 R (where R is a radius of a cracking reaction tube), a thickness (t; r 2 −r 1 ) of 2 to 6 mm, and a length h of 0.5 r 2 to 10 r 2 , a method of preparing the same, and a method of preparing light olefin by using the same.

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Номер записи: 41
19-09-2013 дата публикации

Supported Catalyst of Digestion Residues of Titanyl Sulphate-Containing Black Solution

Номер: US20130244869A1
Автор: Auer Gerhard, Hipler Frank
Принадлежит: SACHTLEBEN PIGMENT GMBH

A composition includes titanium dioxide-containing digestion residue from titanium dioxide production, and at least one further component which is catalytically active. Dimensionally stable, catalytically active solids which are obtained from this composition can be used as catalyst, for example for minimizing nitrogen oxides. 1. A composition , comprising:an insoluble digestion residue occurring in the production of titanium dioxide using the sulphate process upon digestion of the titanium-bearing starting material with sulphuric acid, andat least one further component which is catalytically active comprising one or more tungsten- or vanadium-compounds,{'sub': 3', '2', '3, 'wherein the composition comprises at least 1.0% by weight tungsten, calculated as WO, and/or at least 0.05% by weight vanadium, calculated as VO, with respect to the solids content of the composition.'}2. A composition according to claim 1 , whereinthe digestion residue has been partially neutralised,optionally the impurities of the digestion residue, in particular the neutral salts, have been partially washed out, andoptionally the composition has been calcined.3. A composition according to claim 1 , wherein the sulphate content of the digestion residue is 1.0 to 6.0% by weight claim 1 , with respect to the solids content of the digestion residue.4. A composition according to claim 1 , wherein a pH value of the composition is adjusted to 1 to 5.5. A composition according to claim 1 , wherein it is present in the form of a filter cake or a suspension with a solids content of less than 90% by weight.6. A composition according to claim 1 , having has a Ti-content of 6 to 54% by weight.7. A composition according to claim 1 , wherein after calcination has a BET surface area of 3 to 70 m/g.8. A composition according to claim 1 , wherein it has a sulphate content of 0.1 to 10% by weight claim 1 , with respect to the solids proportion of the composition.9. A composition according to claim 1 , wherein ...

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Номер записи: 42
26-09-2013 дата публикации

CATALYSTS FOR THERMOCHEMICAL FUEL PRODUCTION AND METHOD OF PRODUCING FUEL USING THERMOCHEMICAL FUEL PRODUCTION

Номер: US20130252808A1
Автор: Haile Sossina M., YAMAZAKI Yoshihiro, Yang Chih-Kai
Принадлежит:

To provide a catalyst, which is formed from a perovskite oxide, for thermochemical fuel production, and a method of producing fuel using thermochemical fuel production that is capable of allowing a fuel to be produced in a thermochemical manner. 1. A catalyst for thermochemical fuel production , which is used for producing the fuel from thermal energy by using a two-step thermochemical cycle of a first temperature and a second temperature that is equal to or lower than the first temperature ,{'sub': '3±δ', 'wherein the catalyst is formed from a perovskite oxide having a compositional formula of AXO (provided that, 0≦δ<1) (here, A represents any one or more of a rare-earth element (excluding Ce), an alkaline earth metal element, and an alkali metal element, X represents one or more of a transition metal element and a metalloid element, and O represents oxygen).'}2. The catalyst for thermochemical fuel production according to claim 1 ,wherein the element A is one or more selected from a group consisting of La, Mg, Ca, Sr, and Ba, and the element X is one or more selected from a group consisting of Mn, Fe, Ti, Zr, V, Cr, Co, Ni, Cu, Zn, Mg, Al, Ga, In, C, Si, Ge, and Sn.3. The catalyst for thermochemical fuel production according to claim 2 ,wherein the element A is La, and the element X is Mn.4. The catalyst for thermochemical fuel production according to claim 1 ,wherein the element A is partially substituted with one or more of Sr, Ca, and Ba.5. The catalyst for thermochemical fuel production according to claim 1 ,wherein the element X is partially substituted with one or more of Fe, Ni, V, Cr, Sc, Ti, Co, Cu, and Zn.6. The catalyst for thermochemical fuel production according to claim 1 ,wherein the element A is La, the element X is Mn, La is partially substituted with Sr.7. The catalyst for thermochemical fuel production according to claim 6 , wherein the substituted concentration (x; x represents an amount with an amount of La before substitution being set to 1) ...

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Номер записи: 43
26-09-2013 дата публикации

COMPOSITE OXIDE CATALYST AND METHOD FOR PRODUCING THE SAME

Номер: US20130253217A1
Автор: ISHII Yusuke, Kato Takaaki
Принадлежит: ASAHI KASEI CHEMICALS CORPORATION

A method for producing a complex oxide catalyst containing a complex oxide represented by the formula: 1. A complex oxide catalyst used for a vapor-phase catalytic oxidation reaction or vapor-phase catalytic ammoxidation reaction of propane or isobutane , the catalyst comprising a complex oxide represented by the following formula (1):{'br': None, 'sub': 1', 'a', 'b', 'c', 'd', 'e', 'n, 'MoVSbNbWZO\u2003\u2003(1)'}(wherein a component Z represents one or more elements selected from La, Ce, Pr, Yb, Y, Sc, Sr, and Ba; a, b, c, d, e, and n each represent an atomic ratio of an element to one Mo atom; 0.1≦a≦0.4, 0.1≦b≦0.4, 0.01≦c≦0.3, 0≦d≦0.2, and 0≦e≦0.1; an atomic ratio a/b is 0.85≦a/b<1.0, and an atomic ratio a/c is 1.4 Подробнее

Номер записи: 44
17-10-2013 дата публикации

VANADIUM/TITANIA CATALYST COMPRISING NATURAL MANGANESE ORE FOR REMOVING NITROGEN OXIDES AND DIOXIN IN WIDE OPERATING TEMPERATURE RANGE AND METHOD OF USING THE SAME

Номер: US20130272942A1
Автор: CHO Sung Pill, CHOI Sang Hyun, HONG Seok Joo, HONG Sung Chang, HONG Sung Ho, LEE Do Gyong, LEE Jun Yub
Принадлежит:

Disclosed is a vanadium/titania-based catalyst including natural manganese ore for removing nitrogen oxides and dioxin in a wide operating temperature range and a method of using the same. Specifically, this invention pertains to a vanadium/titania (V/TiO)-based catalyst, including natural manganese ore, and a method for removing nitrogen oxides and dioxin over a wide operating temperature range, in which the WTiOcatalyst for selective catalytic reduction of nitrogen oxides and removal of dioxin contained in flue gas includes 5-30 wt of natural manganese ore. 119.-. (canceled)20. A method for removing nitrogen oxides , dioxin or a mixture thereof contained in flue gas , which is conducted at 150-400° C. at a gas hourly space velocity of 1 ,000-60 ,000 hrin the presence of a catalyst comprising:(i) vanadium supported on titania, the vanadium being supported in an amount of 0.5-10 wt %, based on the element, of titania; and(ii) 5-30 wt % natural manganese ore having pyrolusite,wherein the catalyst is prepared by a method comprising the following steps:a) drying and calcining natural manganese ore followed by making powders of the dried and calcined natural manganese ore;b) separately, wet impregnating titania in a solution of vanadium precursor, followed by drying and calcining to give the vanadium supported on titania; andc) wet mixing said dried and calcined natural manganese ore with said vanadium supported on titania using ball milling, followed by drying and calcining, andwherein nitrogen oxides are removed by selective catalytic reduction, while dioxin is removed by oxidation, andwherein the natural manganese ore further comprises Si, Al, Fe, Ca and Mg in the form of oxide in addition to manganese oxide.21. The method according to claim 20 , wherein the step b) further comprises supporting the titania with tungsten oxides prior to or simultaneously with the step of wet impregnating claim 20 , the amount of tungsten oxides being in an amount of up to 15 wt % ...

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Номер записи: 45
17-10-2013 дата публикации

METHOD FOR PRODUCING UNSATURATED NITRILE

Номер: US20130274500A1
Автор: Shoji Sadao, Tamura Sho
Принадлежит: ASAHI KASEI CHEMICALS CORPORATION

A method for producing an unsaturated nitrile by subjecting propane to a vapor-phase catalytic ammoxidation reaction using a fluidized bed reactor in the presence of a composite oxide catalyst containing Mo, V, and Nb, the method comprising the step of: 1. A method for producing an unsaturated nitrile by subjecting propane to a vapor-phase catalytic ammoxidation reaction using a fluidized bed reactor in the presence of a composite oxide catalyst containing Mo , V , and Nb , wherein the method comprising a step of:adding a tungsten compound into the fluidized bed reactor to adjust a molar ratio (W/Mo ratio) of a tungsten contained in the tungsten compound to a molybdenum contained in the composite oxide catalyst that exist within the fluidized bed reactor so that the molar ratio is in a range of 0.0001 to 0.1.2. The method for producing the unsaturated nitrile according to claim 1 , comprising a step of adding a molybdenum compound into the fluidized bed reactor.4. The method for producing the unsaturated nitrile according to or claim 1 , wherein the composite oxide is carried on 20 to 70% by mass of silica based on a whole amount of the catalyst in terms of SiO. 1. Field of the InventionThe present invention relates to a method for subjecting propane to a vapor-phase catalytic ammoxidation reaction to produce a corresponding unsaturated nitrile.2. Description of the Related ArtIt is conventionally known that a method for subjecting propylene to a vapor-phase catalytic ammoxidation reaction to produce a corresponding unsaturated nitrile. In recent years, attention has been directed to a method for subjecting propane instead of propylene to a vapor-phase catalytic ammoxidation reaction to produce a corresponding unsaturated nitrile.Hitherto, in subjecting propane to a vapor-phase catalytic ammoxidation to produce a corresponding unsaturated nitrile, various techniques have been examined, for example, a technique for adding a molybdenum compound into a reactor during ...

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Номер записи: 46
31-10-2013 дата публикации

CARRIER FOR NOx REDUCTION CATALYST

Номер: US20130287665A1
Автор: Katsumi Nochi, Masanao Yonemura, Masashi Kiyosawa
Принадлежит: Mitsubishi Heavy Industries Ltd

A NOx reduction catalyst carrier yields a NOx reduction catalyst with an improved permissible dose of poisoning substances such as arsenic. More specifically, the present invention relates to a NOx reduction catalyst carrier comprising TiO 2 , having a honeycomb structure and having a specific surface area greater than 100 m 2 /g.

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Номер записи: 47
31-10-2013 дата публикации

PREPARATION METHOD AND USE OF MANGANESE DIOXIDE NANO-ROD

Номер: US20130287677A1
Автор: Deng Huiren, Wang Yaobing, Zhou Mingjie
Принадлежит: OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTD.

Provided are a preparation method and use of manganese dioxide nano-rod. The preparation method comprises the following steps: mixing manganese salt solution and hydrogen peroxide solution to prepare a mixed solution, and adjusting the pH value of the mixed solution to 4-6; subjecting the mixed solution to hydrothermal reaction at 150-190° C. to produce manganese dioxide precipitate; cooling the product of the hydrothermal reaction, and collecting the manganese dioxide precipitate after solid-liquid separating; washing and drying the manganese dioxide precipitate to obtain the manganese dioxide nano-rod. The method is simple, does not need high temperature calcination, and consumes little energy and oxidant, while the purity of the manganese dioxide is high. The manganese dioxide nano-rod has a high catalytic effect on decomposing hydrogen peroxide. 1. A preparation method of manganese dioxide nano-rods , comprising the steps of:mixing manganese salt solution and hydrogen peroxide to prepare a mixed solution, and adjusting the pH of the mixed solution to 4-6;subjecting the mixed solution of pH 4-6 to hydrothermal reaction at 150-190° C., to produce manganese dioxide precipitate;subjecting the product of the hydrothermal reaction to solid-liquid separation after cooling and collecting the manganese dioxide precipitate;washing and drying the manganese dioxide precipitate to obtain manganese dioxide nano-rods.2. The method according to claim 1 , wherein the mole ratio of manganese salt in the manganese salt solution to hydrogen peroxide is 1:0.05 to 1:0.5.3. The method according to claim 1 , wherein the mole ratio of manganese salt in the manganese salt solution to hydrogen peroxide is 1:0.3 claim 1 , and manganese salt in the manganese salt solution is at least one of manganese nitrate claim 1 , manganese carbonate claim 1 , manganese sulfate claim 1 , manganese chloride and manganese acetate.4. The method according to claim 1 , wherein the hydrothermal reaction is ...

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Номер записи: 48
31-10-2013 дата публикации

AMMONIA OXIDATION/DECOMPOSITION CATALYST

Номер: US20130288890A1
Автор: Araki Sadao, Hikazudani Susumu, Mori Takuma
Принадлежит: HITACHI ZOSEN CORPORATION

Provided is an ammonia oxidation/decomposition catalyst which can decrease the reduction temperature of a support, which is required for the catalyst to have a property of being activated at room temperature, and also can render a property of being activated at a temperature lower than room temperature. The ammonia oxidation/decomposition catalyst of the present invention is an ammonia oxidation/decomposition catalyst, comprising: a catalyst support composed of a composite oxide of cerium oxide and zirconium oxide; and at least one metal selected from the group consisting of metals of group 6A, group 7A, group 8, and group 1B as a catalytically active metal deposited thereon, characterized in that the molar concentration of zirconium oxide in the catalyst support is from 10 to 90%. 1. An ammonia oxidation/decomposition catalyst , comprising: a catalyst support composed of a composite oxide of cerium oxide and zirconium oxide; and at least one metal selected from the group consisting of metals of group 6A , group 7A , group 8 , and group 1B as a catalytically active metal deposited thereon , characterized in that the molar concentration of zirconium oxide in the catalyst support is from 10 to 90%.2. The ammonia oxidation/decomposition catalyst according to claim 1 , which is in a honeycomb form.3. The ammonia oxidation/decomposition catalyst according to claim 1 , which is in a pellet or raschig ring form. The present invention relates to an ammonia oxidation/decomposition catalyst which is used in a combustion improver for an ammonia engine using ammonia as a fuel or in a hydrogen production reaction in a fuel cell, etc.Conventionally, in order to produce hydrogen by decomposing ammonia, it is necessary to allow a reaction of the following formula (I) to proceed in the presence of a ruthenium-based ammonia decomposition catalyst.NH3/2H+1/2N  (I)ΔH=46.1 kJ/molSince the reaction of the formula (I) is an endothermic reaction, in order to obtain a stable ammonia ...

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Номер записи: 49
14-11-2013 дата публикации

Novel Glycerol Dehydration Catalyst and Production Method Therefor

Номер: US20130303801A1
Автор: Kawaguchi Toru, Magatani Yasuhiro, Okumura Kimito, Ueda Wataru
Принадлежит:

Provided is a novel catalyst that can produce acrolein and acrylic acid in high yields using glycerol as starting material. The disclosed glycerol dehydration catalyst has niobic oxide synthesized by hydrothermal synthesis as the main component. 1. A catalyst used in a production of acrolein and acrylic acid by dehydration reaction of glycerin , characterized by said catalyst comprises niobium oxide (NbO , in which Nb is niobium and x is any number) prepared by hydrothermal synthesis technique.2. The catalyst of claim 1 , wherein said niobium oxide (NbO) has each one diffraction peak at 2θ=22.6±0.3° and 2θ=46.1±0.3° respectively in the X-ray diffraction pattern (Cu—Kα claim 1 , λ=1.5418 nm).3. The catalyst of or claim 1 , wherein the said niobium oxide contains further tungsten and has following formula: WNbOx in which Nb is niobium claim 1 , b>0 claim 1 , x is a value determined by the oxidation numbers of Nb and W.4. The catalyst of any one of to claim 1 , represented by the following general formula (1):{'br': None, 'sub': a', 'b', 'x', '2, 'A(WNbO).nHO \u2003\u2003(1)'}in which A is at least one member selected from elements belonging to Group 1 to Group 16 of the Periodic Table of Elements and ammonium, W is tungsten, Nb is niobium, a≦0, b≦0, x is a number determined by oxidation numbers of the elements, and n is a any positive number.5. The catalyst of any one of to claim 1 , wherein said niobium oxide is added with at least one salt of elements belonging to Group 1 to Group 16 of the Periodic Table of Elements and ammonium.6. A method for preparing a catalyst used in a production of acrolein and acrylic acid by dehydration reaction of glycerin claim 1 , characterized in that said catalyst is prepared by oxidizing a niobium compound which is changed to an oxide under heat by hydrothermal synthesis technique.7. Use of the catalyst according to any one of to in a process for preparing acrolein and acrylic acid by catalytic dehydration of glycerin. This invention ...

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Номер записи: 50
21-11-2013 дата публикации

Coprocessing of biofeeds with group vi metal catalysts

Номер: US20130310618A1
Автор: Bradley R. Fingland, Patrick Loring Hanks
Принадлежит: ExxonMobil Research and Engineering Co

Feedstocks containing biocomponent materials are coprocessed with mineral feeds using a Group VI metal catalyst prior to hydrodesulfurization of the feedstocks. The Group VI metal catalyst is optionally a physically promoted Group VI metal catalyst.

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Номер записи: 51
28-11-2013 дата публикации

Method of Simultaneously Removing Sulfur and Mercury from Hydrocarbon Material Using Catalyst by Means of Hydrotreating Reaction

Номер: US20130313165A1
Автор: Do Kyoung Kim, Do Woan Kim, Han Seung PAN, Kyung Soo Jun, Sang Il Lee, Seung Hoon Oh, Sun Choi, Woo Kyung Kim, Woo Young Kim
Принадлежит: SK Innovation Co Ltd

Disclosed herein is a method of simultaneously removing sulfur and mercury from a hydrocarbon material, including: hydrotreating the hydrocarbon material containing sulfur and mercury in the presence of a catalyst including a metal supported with a carrier to convert sulfur into hydrogen sulfide, and adsorb mercury on a metal active site or a carrier of the catalyst in the form of mercury sulfide.

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Номер записи: 52
28-11-2013 дата публикации

Manganese Oxides and Their Use in the Oxidation of Alkanes

Номер: US20130317272A1
Автор: Helge Jaensch, Wilfried J. Mortier
Принадлежит: ExxonMobil Chemical Patents Inc

Catalytic structures are provided comprising octahedral tunnel lattice manganese oxides ion-exchanged with metal cations or mixtures thereof. The structures are useful as catalysts for the oxidation of alkanes and may be prepared by treating layered manganese oxide under highly acidic conditions, optionally drying the treated product, and subjecting it to ion exchange.

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Номер записи: 53
05-12-2013 дата публикации

Novel Visible-Light-Responsive Photocatalyst with Environmental Resistance

Номер: US20130324393A1
Автор: Konishi Yoshinari, Sayama Kazuhiro
Принадлежит:

To provide a novel visible light-responsive photocatalyst or tungsten oxide visible light-responsive semiconductor improved in environmental resistance under an alkaline condition. 1. A method for improving environmental resistance of tungsten oxide under an alkaline condition without losing photocatalytic function thereof caused by visible light , the method comprising:adding to tungsten oxide at least one element selected from the group consisting of copper, tantalum, niobium, lanthanum, bismuth, calcium, chromium, manganese and zinc.2. The method according to claim 1 , wherein an amount of the at least one element added is 0.005 to 0.50 in terms of a molar ratio to tungsten.3. The method according to claim 2 , wherein the amount of the at least one element added is 0.01 to 0.15 in terms of the molar ratio to tungsten.4. A tungsten oxide visible light-responsive photocatalyst claim 2 ,{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'wherein the tungsten oxide visible light-responsive photocatalyst is improved in environmental resistance by the method according .'}5. The method according to claim 1 , wherein the at least one element contains bismuth claim 1 , and the method further comprises burning the tungsten oxide at 400° C. to 700° C. to improve photocatalytic activity thereof.6. A tungsten oxide visible light-responsive photocatalyst claim 1 ,{'claim-ref': {'@idref': 'CLM-00005', 'claim 5'}, 'wherein the tungsten oxide visible light-responsive photocatalyst is improved in environmental resistance and photocatalytic activity by the method according to .'}7. The method according to claim 1 , further comprising:subjecting a product obtained in the adding to an alkaline treatment to improve photocatalytic activity thereof.8. (canceled) The present invention relates to a novel visible light-responsive photocatalyst having environmental resistance.Photocatalysts responsive to sunlight or indoor light to adsorb, decompose, and remove environmental contaminants, or ...

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Номер записи: 54
12-12-2013 дата публикации

SILICA-STABILIZED ULTRAFINE ANATASE TITANIA, VANADIA CATALYSTS, AND METHODS OF PRODUCTION THEREOF

Номер: US20130331259A1
Автор: Chapman David M.
Принадлежит: Cristal USA Inc.

The invention is directed to compositions and processes for the production of silica-stabilized ultrafine anatase titanias and which may further comprise tungsten and vanadia. The surface stabilization may be by treatment of the TiOparticles with a low molecular weight and/or small nanoparticle form of silica such as, in preferred embodiments, a tetra(alkyl)ammonium silicate or silicic acid, which serves to efficiently maintain the anatase phase and prevent crystal growth under severe thermal and hydrothermal conditions, even in the presence of vanadia. The vanadia catalysts produced from the novel titanias have equal or improved catalytic activity for selective catalytic reduction of NOx compared to conventional vanadia supported silica-titania based catalysts. The invention is further directed to diesel emission catalytic devices comprising the novel titania-based catalyst compositions. 1. A method of producing a catalyst support material , comprising:{'sub': '2', 'providing a slurry comprising TiO;'}{'sub': 2', '2', '2', '3', '2', '3', '2', '2', '3', '2, 'combining the TiOslurry with (1) a silica precursor solution comprising SiOsubstantially in a low molecular weight and/or SiOcomprising small nanoparticles and with (2) WOto form a TiO—WO—SiOmixture; wherein the silica precursor solution is combined with the TiOslurry before, after, or while the WOis combined with the TiOslurry; and'}{'sub': 2', '3', '2, 'washing and sintering the TiO—WO—SiOmixture to form a silica-stabilized titania support material.'}2. The method of wherein the silica-stabilized titania support material claim 1 , comprises:{'sub': 2', '2', '3, 'sup': '2', '86%-94% dry weight of TiO, 3%-9% dry weight of a SiO, and 3%-7% dry weight of WO; and wherein the titania support material primarily comprises a surface area of at least 80 m/gm before sintering.'}3. The method of wherein the TiOof the slurry comprise preformed titanium hydroxide claim 1 , titanium oxy-hydroxide or titanium dioxide ...

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Номер записи: 55
09-01-2014 дата публикации

Silicon carbide porous body, honeycomb structure, and electric heating type catalyst carrier

Номер: US20140011667A1
Автор: Katsuhiro Inoue, Kiyoshi MATSUSHIMA, Takahiro Tomita, Yoshimasa Kobayashi
Принадлежит: NGK Insulators Ltd

A silicon carbide porous body according to the present invention contains silicon carbide particles, metallic silicon, and an oxide phase, in which the silicon carbide particles are bonded together via at least one of the metallic silicon and the oxide phase. The primary component of the oxide phase is cordierite, and the open porosity is 10% to 40%. Preferably, the silicon carbide porous body contains 50% to 80% by weight of silicon carbide, 15% to 40% by weight of metallic silicon, and 1% to 25% by weight of cordierite. Preferably, the volume resistivity is 1 to 80 Ωcm, and the thermal conductivity is 30 to 70 W/m·K.

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Номер записи: 56
16-01-2014 дата публикации

EXHAUST GAS PURIFYING CATALYST, EXHAUST GAS PURIFYING MONOLITH CATALYST, AND METHOD FOR MANUFACTURING EXHAUST GAS PURIFYING CATALYST

Номер: US20140018235A1
Автор: Akaishi Misaki, Hanaki Yasunari, Ito Junji, Naito Tetsuro, Wakamatsu Hironori
Принадлежит:

An exhaust gas purifying catalyst having a high purifying ability even if noble metal is not used as an essential component, an exhaust gas purifying monolith catalyst, and a method for manufacturing an exhaust gas purifying catalyst, are provided. The exhaust gas purifying catalyst includes an oxide having an oxygen storage and release capacity, and an oxide represented by the following formula (1) supported on the oxide having the oxygen storage and release capacity, 19.-. (canceled)10. An exhaust gas purifying catalyst , comprising:an oxide having an oxygen storage and release capacity; and {'br': None, 'sub': x', '1-x', '3-δ, 'LaMM′O\u2003\u2003(1)'}, 'an oxide represented by formula (1) supported on the oxide having the oxygen storage and release capacity,'}(wherein La represents lanthanum, M represents at least one element selected from the group consisting of barium (Ba), strontium (Sr) and calcium (Ca), M′ represents at least one element selected from the group consisting of iron (Fe), cobalt (Co), nickel (Ni) and manganese (Mn), δ represents an oxygen deficiency amount, and x and δ fulfill conditions represented by 0 Подробнее

Номер записи: 57
16-01-2014 дата публикации

PREPARATION METHOD OF DENITRATION CATALYST

Номер: US20140018236A1
Автор: Hikazudani Susumu, Hino Naoe
Принадлежит: HITACHI ZOSEN CORPORATION

Provided is a preparation method of a denitration catalyst for treating nitrogen oxides contained in exhaust gas discharged from gas turbines for generating plants, coil fired boilers, etc., in which the catalytic activity can be improved, and furthermore, an increase of the cost of producing the catalyst is not involved. The preparation method of a denitration catalyst used when reacting nitrogen oxides with reducing agent ammonia to decompose the nitrogen oxides into nitrogen and water, and including titanium oxide and vanadium as catalytic active ingredients thereof, is characterized in that the vanadium precursor is ammonium metavanadate powder, the ammonium metavanadate powder containing particles having a particle diameter of 10 μm or less in a cumulative ratio of 20% or more. The ammonium metavanadate powder is preferably a reclaimed product including vanadium recovered from petroleum-based combustion ash such as heavy oil ash. 1. A method for preparing a denitration catalyst which is used when reacting nitrogen oxides with ammonia as a reducing agent to decompose the nitrogen oxides into nitrogen and water and which includes titanium oxide , vanadium and tungsten as catalytic active ingredients thereof , characterized in that a precursor of the vanadium is ammonium metavanadate powder , the ammonium metavanadate powder containing particles having a particle diameter of 10 μm or less in a cumulative content of 20% or more.2. The method for preparing a denitration catalyst according to claim 1 , characterized in that the ammonium metavanadate powder is a reclaimed product including vanadium recovered from petroleum-based combustion ash claim 1 , such as heavy oil ash. The present invention relates to a preparation method of a denitration catalyst for treating nitrogen oxides contained in exhaust gas discharged from, for example, a gas turbines for generating plants, coal fired boilers, etc.Denitration catalysts used for treating nitrogen oxides contained in ...

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Номер записи: 58
16-01-2014 дата публикации

PROCESS FOR HETEROGENEOUSLY CATALYZED GAS PHASE PARTIAL OXIDATION OF (METH)ACROLEIN TO (METH)ACRYLIC ACID

Номер: US20140018572A1
Автор: Blickhan Nina, Drochner Alfons, Duerr Nadine, Jekewitz Tim, KARPOV Andrey, Menning Nadine, Mueller-Engel Klaus Joachim, Petzold Tina, Rosowski Frank, SCHMIDT Sabine, Vogel Herbert, WELKER-NIEUWOUDT Cathrin Alexandra
Принадлежит: BASF SE

A process for preparing (meth)acrylic acid by heterogeneously catalyzed gas phase partial oxidation of (meth)acrolein over a multimetal oxide composition which comprises the elements Mo, V and W and is obtained by a hydrothermal preparation route, and the multimetal oxide composition obtainable by this preparation route. 1. A process , comprising heterogeneously catalyzing a partial oxidation of (meth)acrolein to (meth)acrylic acid in the gas phase over a catalytically active multimetal oxide composition of formula (I):{'br': None, 'sub': 12', 'a', 'b', 'c', 'd', 'c', 'f', 'g', 'n, 'sup': 1', '2', '3', '4', '5', '6, 'MoVXXXXXXO\u2003\u2003(I),'}wherein:{'sup': '1', 'Xrepresents W, Nb, Ta, Cr, Ce, or a mixture thereof;'}{'sup': '2', 'Xrepresents Cu, Ni, Co, Fe, Mn, Zn, or a mixture thereof;'}{'sup': '3', 'Xrepresents Sb, Te, Bi, or a mixture thereof;'}{'sup': '4', 'Xrepresents H, one or more alkali metals, or a mixture thereof;'}{'sup': '5', 'Xrepresents one or more alkaline earth metals;'}{'sup': '6', 'Xrepresents Si, Al, Ti, Zr, or a mixture thereof;'}a represents 1 to 6;b represents 0.2 to 8;c represents 0 to 18;d represents 0 to 40;e represents 0 to 4;f represents 0 to 4;g represents 0 to 40;n represents a number determined by the valency and frequency of the elements in the formula (I) other than oxygen;{'sup': '1', 'at least 50 mol % of a total molar amount of elements Xpresent in the multimetal oxide composition of formula (I) is the element W; and'}the multimetal oxide composition of formula (I) is prepared by hydrothermally treating a mixture of sources of elemental constituents in the presence of water in a pressure vessel, such that a newly forming solid is removed as a precursor composition which is converted to the catalytically active multimetal oxide composition of formula (I) by thermal treatment.2. The process according to claim 1 , wherein the catalytically active multimetal oxide composition satisfies formula (II):{'br': None, 'sub': 12', 'a', 'b', ...

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Номер записи: 59
30-01-2014 дата публикации

Process for preparing olefins from synthesis gas using a cobalt and manganese containing catalyst

Номер: US20140031198A1
Автор: Michael Johannes Franciscus Maria Verhaak
Принадлежит: Shell Oil Co

The invention relates to a process for preparing a supported catalyst, wherein the catalyst contains cobalt, manganese and a third element selected from the group consisting of aluminium, gallium, indium, thallium, tin, lead and bismuth, and is prepared by co-precipitation of a manganese salt and a cobalt salt on a support, followed by impregnation with a salt of the third element. Further, the invention relates to the catalyst so obtained.

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Номер записи: 60
20-02-2014 дата публикации

LAYERED COMPLEX OXIDE, OXIDATION CATALYST AND DIESEL PARTICULATE FILTER

Номер: US20140050629A1
Автор: Masuda Kouji, Munakata Fumio
Принадлежит:

Provided are a layered complex oxide that can lower PM oxidation temperature and increase oxidation rate, and a nitrogen oxides reduction catalyst, a three-way catalyst, a DPF and an oxidation catalyst, each of which includes the layered complex oxide. The layered complex oxide has a layered perovskite structure and has a composition represented by the formula: (LnA)MnO (wherein Ln is La and/or Nd, A is Sr and/or Ca, α is degree of A-site deficiency, δ is the oxygen deficit amount, and X, δ and α satisfy 0 Подробнее

Номер записи: 61
06-03-2014 дата публикации

Light Absorbing Oxide Materials for Photovoltaic and Photocatalytic Applications and Devices

Номер: US20140060643A1
Автор: Brent A. APGAR, Lane W. Martin, Sungki Lee
Принадлежит: University of Illinois

Provided are materials, methods and devices for absorption of visible or solar terrestrial electromagnetic radiation. The disclosed materials, methods and devices employ a multi-component oxide material comprising a solar terrestrial light absorbing metallic oxide and a catalytic oxide to achieve conversion of absorbed visible or solar terrestrial electromagnetic radiation into useful work, such as for photocatalytic or photovoltaic applications.

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Номер записи: 62
06-03-2014 дата публикации

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

Номер: US20140065044A1
Автор: Ito Tomoaki, NAGATA Makoto, Okajima Toshinori
Принадлежит: N.E. CHEMCAT CORPORATION

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

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Номер записи: 63
13-03-2014 дата публикации

Method for Transforming Nitrogen-Containing Compounds

Номер: US20140072508A1
Автор: Arno Tissler, Frank Klose, Grigory Reznikov, Silke Sauerbeck
Принадлежит: Clariant Produkte Deutschland GmbH

The invention relates to a method for the selective catalytic transformation of nitrogen-containing compounds. The transformation relates to the selective catalytic reduction (SCR) of nitrogen oxides, or the selective catalytic oxidation (SCO) of nitrogen hydrides and nitrogen-containing organic compounds, preferably in waste gas flows of combustion processes with motors and without motors and industrial applications. The catalytic converter comprises a titano-(silico)-alumo-phosphate.

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Номер записи: 64
20-03-2014 дата публикации

CATALYSTS FOR OXIDATIVE COUPLING OF METHANE AND SOLUTION COMBUSTION METHOD FOR THE PRODUCTION OF THE SAME

Номер: US20140080699A1
Автор: Ghose Ranjita, Hwang Hyun Tae, Varma Arvind
Принадлежит:

A method for making a metal oxide material and catalyzing the oxidative coupling of methane, including mixing a metal cation-containing oxidizer portion and a reducing fuel portion with water to define an aqueous solution, evaporatively removing water from the aqueous solution to yield a concentrated liquid, burning the concentrated liquid yield an homogeneous metal oxide powder, flowing methane from a first source and oxygen from a second source over the homogeneous metal oxide powder, and catalyzing an oxidative coupling of methane reaction with the homogeneous metal oxide powder. The homogeneous metal oxide powder contains metal oxides selected from the group including LaSrAlO, LaAlO, SrAlO, NaWO—Mn/SiO, and combinations thereof. 1. A method for producing metal oxide catalysts for oxidative coupling of methane reactions , comprising:measuring predetermined stoichiometric amounts of metal cation contributors to define a predetermined metal cation precursor;measuring a predetermined amount of reducing fuel;mixing the predetermined amount of fuel, the predetermined metal cation precursor and water to define an aqueous solution;evaporating water from the aqueous solution to define a concentrated solution;igniting the concentrated solution;combustively reacting the metal cation precursor with the fuel to yield a metal oxide2. The method of wherein metal cation containing portion contains members of the group comprising lanthanum nitrate hexahydrate claim 1 , strontium nitrate claim 1 , aluminum nitrate nonahydrate claim 1 , sodium tungsten oxide dehydrate claim 1 , manganese nitrate tetrahydrate claim 1 , tetraethoxysilane claim 1 , and combinations thereof claim 1 , and wherein the reducing fuel is glycine claim 1 , hydrazine claim 1 , oxalates claim 1 , citric acid etc and combinations thereof.3. The method of and further comprising:flowing methane from a first source over the metal oxide;flowing oxygen from a second source over the metal oxide;mixing methane from ...

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Номер записи: 65
20-03-2014 дата публикации

Catalytic Process for Production of Pyridine Carboxylic Acid Amides

Номер: US20140081029A1
Автор: AGARWAL Ashutosh, KUMAR MAHENDRA, SINGH Shailendra Kumar
Принадлежит:

An improved catalytic process for the production of pyridine carboxylic acid amides, by catalytic hydration reaction of pyridine nitriles with solid heterogeneous catalyst wherein the process involve effective utilization and recycling of the catalytic components, and reactants. 1. A process for producing pyridine carboxylic acid amide compounds , analogs , substituted forms , derivatives , or pharmaceutically acceptable salts , esters , prodrugs , solvates and hydrates thereof , the process comprising:a catalytic hydrolysis of pyridine nitrile compound with water in the presence of a solid heterogeneous catalyst, optionally in alcohol,wherein the catalyst, water and other reactant materials are reused and wherein the catalyst, when deactivated is regenerated and reused in the process.2. The process according to claim 1 , wherein the catalyst is selected from the group comprising oxides claim 1 , hydroxides claim 1 , carbonates claim 1 , bicarbonates claim 1 , nitrates claim 1 , sulphates claim 1 , halides claim 1 , acetates claim 1 , chelates claim 1 , complexes claim 1 , nanoparticles of metals from group IIA claim 1 , IIIB claim 1 , IVB claim 1 , VB claim 1 , VIB claim 1 , VIIB claim 1 , VIIIB claim 1 , IB claim 1 , IIB claim 1 , IIIA and IVA of the periodic table and mixtures thereof.3. The process according to claim 1 , wherein the catalyst is selected from the group comprising oxides claim 1 , hydroxides claim 1 , carbonates claim 1 , bicarbonates claim 1 , nitrates claim 1 , sulphates claim 1 , halides claim 1 , acetates claim 1 , chelates claim 1 , complexes claim 1 , nanoparticles of manganese claim 1 , cobalt claim 1 , nickel claim 1 , lead claim 1 , copper claim 1 , aluminium claim 1 , rhuthenium claim 1 , silver claim 1 , zinc claim 1 , cadmium claim 1 , iron claim 1 , molybdenum claim 1 , chromium claim 1 , magnesium claim 1 , vanadium claim 1 , zirconium claim 1 , indium and mixtures thereof.4. The process according to claim 1 , wherein the water used ...

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Номер записи: 66
07-01-2016 дата публикации

PEROVSKITE WITH AN OVLERLAYER SCR COMPONENT AS AN AMMONIA OXIDATION CATALYST AND A SYSTEM FOR EXHAUST EMISSION CONTROL ON DIESEL ENGINES

Номер: US20160001228A1
Автор: Chang Hsiao-Lan, Chen Hai-Ying
Принадлежит:

An ammonia slip control catalyst having a layer containing perovskite and a separate layer containing an SCR catalyst is described. The ammonia slip catalyst can have two stacked layers, with the top overlayer containing an SCR catalyst, and the bottom layer containing a perovskite. The ammonia slip catalyst can alternatively be arranged in sequential layers, with the SCR catalyst being upstream in the flow of exhaust gas relative to the perovskite. A system comprising the ammonia slip catalyst upstream of a PGM-containing ammonia oxidation catalyst and methods of using the system are described. The system allows for high ammonia oxidation with good nitrogen selectivity. Methods of making and using the ammonia slip catalyst to reduce ammonia slip and selectively convert ammonia to Nare described. 1. An ammonia slip catalyst comprising a first layer comprising an SCR catalyst and a second layer comprising a perovskite , wherein the first layer is arranged to contact an exhaust gas before the second layer.2. The ammonia slip catalyst of claim 1 , wherein the first layer is an overlayer located over the second layer.3. The ammonia slip catalyst of claim 1 , wherein the first layer is supported on a first support material and the second layer is supported on a second support material.4. The ammonia slip catalyst of claim 1 , wherein the SCR catalyst comprises an oxide of a base metal claim 1 , a molecular sieve claim 1 , a metal exchanged molecular sieve or a mixture thereof.5. The ammonia slip catalyst of claim 4 , wherein the base metal is selected from the group consisting of cerium (Ce) claim 4 , chromium (Cr) claim 4 , cobalt (Co) claim 4 , copper (Cu) claim 4 , iron (Fe) claim 4 , manganese (Mn) claim 4 , molybdenum (Mo) claim 4 , nickel (Ni) claim 4 , tungsten (W) and vanadium (V) claim 4 , and mixtures thereof.6. The ammonia slip catalyst of claim 1 , wherein the SCR catalyst comprises a metal exchanged molecular sieve and the metal is selected from the group ...

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Номер записи: 67
07-01-2021 дата публикации

METHOD FOR MAKING CATALYST FOR OZONE DECOMPOSITION

Номер: US20210001310A1
Автор: CAO RAN-RAN, Liu Yang, ZHANG PENG-YI
Принадлежит:

A method for making a catalyst for ozone decomposition includes: adding a reducing agent into a water solution of a permanganate salt to obtain a first reaction liquid, and heating the first reaction liquid under continuous stirring to form a birnessite-type manganese dioxide; and adding the birnessite-type manganese dioxide into a water solution of an ammonium salt to obtain a second reaction liquid, and heating the second reaction liquid under continuous stirring to form the catalyst. 1. A method for making a catalyst for ozone decomposition , the method comprising:adding a reducing agent into a water solution of a permanganate salt to obtain a first reaction liquid, and heating the first reaction liquid under continuous stirring to form a birnessite-type manganese dioxide; andadding the birnessite-type manganese dioxide into a water solution of an ammonium salt to obtain a second reaction liquid, and heating the second reaction liquid under continuous stirring to form the catalyst.2. The method of claim 1 , wherein the ammonium salt is selected from the group consisting of ammonium sulfate claim 1 , ammonium chloride claim 1 , ammonium nitrate claim 1 , ammonium carbonate claim 1 , ammonium bicarbonate claim 1 , and any combination thereof.3. The method of claim 1 , wherein a concentration of the ammonium salt in the water solution of the ammonium salt is about 5 g/L to about 400 g/L.4. The method of claim 1 , wherein a heating temperature of the first reaction liquid is about 25° C. to about 90° C.5. The method of claim 1 , wherein the permanganate salt is selected from the group consisting of potassium permanganate claim 1 , sodium permanganate claim 1 , ammonium permanganate claim 1 , and any combination thereof.6. The method of claim 1 , wherein a concentration of the permanganate salt in the water solution of the ammonium salt is about 0.1 g/L to about 100 g/L.7. The method of claim 1 , wherein a mass ratio of the reducing agent to the permanganate is about ...

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Номер записи: 68
05-01-2017 дата публикации

Egg-shell type hybrid structure of highly dispersed nanoparticle-metal oxide support, preparation method thereof, and use thereof

Номер: US20170001168A1
Автор: Dong Hyun Chun, Heon Jung, Ho Tae Lee, Jae In Kwon, Ji Chan Park, Jung Il Yang, Sung Jun Hong
Принадлежит: Korea Institute of Energy Research KIER

The present invention relates to an egg-shell type hybrid structure of highly dispersed nanoparticles-metal oxide support, a preparation method thereof, and a use thereof. Specifically, the present invention relates to an egg-shell type hybrid structure of highly dispersed nanoparticles-metal oxide support, providing an excellent platform in a size of nanometers or micrometers which can support nanoparticles selectively in the porous shell portion by employing a metal oxide support with an average diameter of nanometers or micrometers including a core of nonporous metal oxide and a shell of porous metal oxides, a preparation method thereof, and a use thereof.

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Номер записи: 69
02-01-2020 дата публикации

CATALYST FOR HYDROGENATION OF CARBONYL COMPOUND AND ALCOHOL PRODUCTION METHOD

Номер: US20200001276A1
Автор: AOSHIMA Takayuki, MATSUO Takeshi, Yoshikawa Yumiko
Принадлежит: MITSUBISHI CHEMICAL CORPORATION

Provided is a catalyst including a metal component including a first component that is rhenium and one or more second components selected from the group consisting of silicon, gallium, germanium, and indium and a carrier on which the metal component is supported, the carrier including an oxide of a metal belonging to Group 4 of the periodic table. Also provided is an alcohol production method in which a carbonyl compound is treated using the above catalyst. It is possible to produce an alcohol by a hydrogenation reaction of a carbonyl compound with high selectivity and high efficiency while reducing side reactions. 1. An alcohol production method in which an alcohol is produced from a carbonyl compound , the method comprising producing an alcohol by contacting a carbonyl compound with a catalyst , the catalyst comprising a metal component comprising a first component that is rhenium and one or more second components selected from the group consisting of silicon , gallium , germanium , and indium and a carrier on which the metal component is supported , the carrier comprising an oxide of a metal belonging to Group 4 of the periodic table.2. The alcohol production method according to claim 1 , wherein a mass ratio of elements that are the second components included in the catalyst to the rhenium element included in the catalyst is in a range of 0.1 to 10.3. The alcohol production method according to claim 1 , wherein the oxide of a metal belonging to Group 4 of the periodic table claim 1 , the oxide being included in the catalyst claim 1 , comprises titanium oxide and/or zirconium oxide.4. The alcohol production method according to claim 1 , wherein the catalyst is a catalyst prepared by a method comprising attaching the metal component to a carrier comprising a sulfate ion.5. The alcohol production method according to claim 4 , wherein the sulfate ion content in the carrier is 0.01% by mass to 10% by mass of the mass of the carrier.6. The alcohol production method ...

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Номер записи: 70
04-01-2018 дата публикации

CATALYST FOR 1,3-BUTADIENE SYNTHESIS, METHOD FOR PRODUCING CATALYST FOR 1,3-BUTADIENE SYNTHESIS, APPARATUS FOR PRODUCING 1,3-BUTADIENE, AND METHOD FOR PRODUCING 1,3-BUTADIENE

Номер: US20180001304A1
Автор: MIYAMA Toshihito, NISHINO Tomoaki
Принадлежит: Sekisui Chemical Co., Ltd.

[1] A catalyst for synthesizing 1,3-butadiene by contact with ethanol, which comprises tungsten oxide and magnesium oxide. [2] The catalyst, wherein a mass ratio of the magnesium oxide to the tungsten oxide (magnesium oxide/tungsten oxide) is 0.1 to 200. [3] The catalyst, wherein the mass ratio is at least 5. [4] The catalyst, wherein amounts of the tungsten oxide and the magnesium oxide relative to 100% by mass of the catalyst are as follows: the amount of the tungsten oxide: 0.1 to 90% by mass; and the amount of the magnesium oxide: 10 to 90% by mass. 1. A catalyst for synthesizing 1 ,3-butadiene by contact with ethanol , which comprises tungsten oxide and magnesium oxide.2. The catalyst according to claim 1 , wherein a mass ratio of the magnesium oxide to the tungsten oxide (magnesium oxide/tungsten oxide) is 0.1 to 200.3. The catalyst according to claim 1 , wherein the mass ratio is at least 5.4. The catalyst according to claim 1 , wherein amounts of the tungsten oxide and the magnesium oxide relative to 100% by mass of the catalyst are as follows:the amount of the tungsten oxide: 0.1 to 90% by mass; andthe amount of the magnesium oxide: 10 to 90% by mass.5. The catalyst according to claim 1 , which further comprises at least one inorganic oxide other than tungsten oxide and magnesium oxide.6. The catalyst according to claim 5 , wherein an amount of the inorganic oxide other than tungsten oxide and magnesium oxide is 0.1 to 89.9% by mass relative to 100% by mass of the catalyst.7. The catalyst according to claim 6 , wherein amounts of the tungsten oxide claim 6 , the magnesium oxide claim 6 , and the inorganic oxide other than tungsten oxide and magnesium oxide relative to 100% by mass of the catalyst are as follows:the amount of the tungsten oxide: 0.1 to 89.9% by mass;the amount of the magnesium oxide: 10 to 90% by mass; andthe amount of the inorganic oxide other than tungsten oxide and magnesium oxide: 0.1 to 89.9% by mass.8. The catalyst according to claim 6 ...

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Номер записи: 71
04-01-2018 дата публикации

GOLD-BASED CATALYST FOR THE OXIDATIVE ESTERIFICATION OF ALDEHYDES TO OBTAIN CARBOXYLIC ESTERS

Номер: US20180001307A1
Автор: Groemping Matthias, KRILL Steffen, LYGIN Alexander, TEPPERIS Andreas
Принадлежит: Evonik Roehm GmbH

Catalysts for oxidative esterification can be used, for example, fro converting (meth)acrolein to methyl (meth)acrylate. The catalysts are especially notable for high mechanical and chemical stability even over very long time periods, including activity and/or selectivity relatively in continuous operation in media having even a small water content. 1. A hydrolysis-resistant catalyst , comprising:a) 0.01 to 10 mol % of gold,b) 40 to 94 mol % of silicon,c) 3 to 40 mol % of aluminium, andd) 2 to 40 mol % of at least one element selected from the group consisting of alkali metals, alkaline earth metals, lanthanoids having atomic numbers 57 to 71, Y, Sc, Ti, Zr, Cu, Mn, Pb and Bi,wherein components b) to d) are present as oxides and the stated amounts of components a) to d) relate to 100 mol % of the composition of the catalyst without oxygen,wherein the catalyst is in the form of particles and is suitable for the oxidative esterification of aldehydes to carboxylic esters,wherein the catalyst has a shell structure comprising a core and at least one shell, where at least 80% of the total amount of component a) is part of a shell, andwherein the catalyst has a PZC value between 7 and 11.2. The catalyst according to claim 1 , which claim 1 , except for the oxygen claim 1 , consists of components a) to d).3. The catalyst according to claim 1 , wherein the catalyst comprises between 0.05 and 2 mol % of component a).4. The catalyst according to claim 1 , wherein component a) is in the form of particles having a mean diameter between 2 and 10 nm.5. The catalyst according to claim 1 , wherein the catalyst particles have an average diameter between 10 and 200 μm and a spherical shape.6. The catalyst according to claim 1 , wherein the catalyst comprises between 2 and 30 mol % of Mg claim 1 , Ce claim 1 , La claim 1 , Y claim 1 , Zr claim 1 , Mn claim 1 , Pb and/or Bi as component d).7. The catalyst according to claim 1 , wherein the catalyst has a core and two shells claim 1 , ...

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Номер записи: 72
03-01-2019 дата публикации

METHOD FOR THE PREPARATION OF A ZONE COATED CATALYSED MONOLITH

Номер: US20190001318A1
Автор: Johansen Keld
Принадлежит: Haldor Topsoe A/S

Method for zone coating of monolithic substrates by using different sol-solution containing different catalyst carrier precursors and metal catalyst precursors and suction of one of the sol-solution up into pores in the walls of the zone to be coated, solely by capillary forces and another different sol-solution into the walls of another zone to be coated by capillary forces. 1. A method for the preparation of a catalysed monolith zone coated with different catalysts , comprising the steps ofa) providing a porous monolith substrate with a plurality of longitudinal flow channels separated by gas permeable partition walls, the monolith substrate having a first end face and at a distance to the first end face a second end face;b) providing a first sol solution in an amount corresponding to at least the pore volume in a first catalyst zone of the gas permeable partition walls to be coated with the first sol solution, the first sol solution containing water soluble or suspended precursors of one or more catalytically active compounds and water soluble or suspended precursors or oxides of one or metal oxides catalyst carrier compounds, at least one of the one or more precursors or oxides is suspended and at least one of the one or more precursors is dissolved in the sol solution;c) providing a second sol solution in an amount corresponding to at least the pore volume in a second catalyst zone of the gas permeable partition walls to be coated with the second sol solution, the second sol solution containing water soluble or suspended precursors of one or more catalytically active compounds different to the catalytically active compounds in the first sol solution and water soluble or suspended precursors or oxides of one or more metal oxides catalyst carrier compounds, at least one of the one or more precursors or oxides is suspended and at least one of the one or more precursors is dissolved in the second sol solution;d) placing the porous monolith substrate substantially ...

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Номер записи: 73
07-01-2021 дата публикации

NANOLOG AND NANOPARTICLES AND METHOD OF FORMATION

Номер: US20210002144A1
Автор: Aguf Vladimir, Kossoy Anna, Margolin Alexander
Принадлежит:

A nanostructure is provided that in one embodiment includes a cluster of cylindrical bodies. Each of the cylindrical bodies in the cluster are substantially aligned with one another so that their lengths are substantially parallel. The composition of the cylindrical bodies include tungsten (W) and sulfur (S), and each of the cylindrical bodies has a geometry with at least one dimension that is in the nanoscale. Each cluster of cylindrical bodies may have a width dimension ranging from 0.2 microns to 5.0 microns, and a length greater than 5.0 microns. In some embodiments, the cylindrical bodies are composed of tungsten disulfide (WS). In another embodiment the nanolog is a particle comprised of external concentric disulfide layers which encloses internal disulfide folds and regions of oxide. Proportions between disulfide and oxide can be tailored by thermal treatment and/or extent of initial synthesis reaction. 1. A nanostructure comprising:a cluster of substantially cylindrical bodies, the substantially cylindrical bodies in said cluster are directly in contact with one another along their lengths and are substantially aligned with one another so that their lengths are substantially parallel, the composition of the cylindrical bodies comprising tungsten (W) and sulfur (S), and each of the cylindrical bodies has a geometry with at least one dimension that is in the nanoscale.2. The nanostructure of claim 1 , wherein each cluster of cylindrical bodies has a width dimension ranging from 0.2 microns to 5.0 microns claim 1 , and a length greater than 5.0 microns.3. The nanostructure of claim 1 , wherein each cylindrical body has a hollow core across its entire length.4. The nanostructure of claim 3 , wherein an oxide layer between the tungsten and sulfur containing body and the hollow core.5. The nanostructure of claim 1 , wherein the cylindrical body has a solid core in at least one portion of the cylindrical body along its length.6. A method of forming a nanostructure ...

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Номер записи: 74
07-01-2021 дата публикации

CATALYST, AND METHOD FOR DIRECT CONVERSION OF SYNGAS TO PREPARE LIGHT OLEFINS

Номер: US20210002184A1
Автор: Bao Xinhe, Jiao Feng, PAN Xiulian
Принадлежит:

A process for direct synthesis of light olefins uses syngas as the feed raw material. This catalytic conversion process is conducted in a fixed bed or a moving bed using a composite catalyst containing components A and B (A+B). The active ingredient of catalyst A is metal oxide; and catalyst B is an oxide supported zeolite. A carrier is one or more of AlO, SiO, TiO, ZrO, CeO, MgO and GaOhaving hierarchical pores; the zeolite is one or more of CHA and AEI structures. The loading of the zeolite is 4%-45% wt. A weight ratio of the active ingredients in the catalyst A and the catalyst B is within a range of 0.1-20, and preferably 0.3-5. The total selectivity of the light olefins comprising ethylene, propylene and butylene can reach 50-90%, while the selectivity of a methane byproduct is less than 15%. 1. A catalyst , wherein the catalyst is a composite catalyst composed of A+B; the catalyst component A and the catalyst component B are compounded by mechanical mixing method; the active ingredients of the catalyst component A are active metal oxides; the catalyst component B are supported zeolites; the carrier is at least one of porous AlO , SiO , TiO , ZrO , CeO , MgO and GaO; the zeolite is at least one of CHA and AEI structures; the loading of the zeolite is 4%-45% wt; and the active metal oxide is at least one of MnO , MnCrO , MnAlO , MnZrO , ZnO , ZnCrO , ZnAlO , CoAlOand FeAlO.2. The catalyst according to claim 1 , wherein at least one of porous AlO claim 1 , SiO claim 1 , TiO claim 1 , ZrO claim 1 , CeO claim 1 , MgO and GaOin the catalyst component B is used as the carrier; specific surface area is 30-250 m/g; pore volume is 0.25-0.80 ml/g; through calculation according to the specific surface area claim 1 , mesoporous specific surface area occupies 30-75% and macroporous specific surface area occupies 25-70%; and the zeolite is used as an active component and dispersed on the carrier by in situ growth or physical mixing mode.3. The catalyst according to claim 1 , ...

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Номер записи: 75
07-01-2021 дата публикации

CONTINUOUS OR SEMI-CONTINUOUS PROCESS FOR THE PREPARATION OF ETHYLENE GLYCOL AND CATALYST SYSTEM FOR USE THEREIN

Номер: US20210002192A1
Автор: Dekker Paula, McKay Benjamin, SINGH Jagdeep, van der Waal Jan Cornelis
Принадлежит:

A continuous or semi-continuous process for the preparation of ethylene glycol from a carbohydrate source including: 1. A continuous or semi-continuous process for the preparation of ethylene glycol from a carbohydrate source including:reacting, in a reactor, at a temperature in the range from equal to or more than 170° C. to equal to or less than 270° C., at least a portion of a carbohydrate source in the presence of hydrogen, a solvent, and a catalyst system, to yield ethylene glycol;wherein the catalyst system includes:a homogeneous catalyst, which homogeneous catalyst contains tungsten; anda heterogeneous catalyst, which heterogeneous catalyst contains one or more transition metals from groups 8, 9 and 10 of the Periodic Table of the Elements supported on a carrier;and wherein continuously or periodically additional heterogeneous catalyst is added to the reactor.2. The process according to claim 1 , wherein the selectivity towards ethylene glycol is maintained by continuously or periodically adding additional heterogeneous catalyst to the reactor.3. The process according to claim 2 , wherein the ethylene glycol selectivity is maintained below a threshold of 85% by continuously or periodically adding additional heterogeneous catalyst to the reactor.4. The process according to claim 2 , wherein the ethylene glycol selectivity is maintained within a range of equal to or more than 35% to equal to or less than 85% by continuously or periodically adding additional heterogeneous catalyst to the reactor.5. The process according to any one of to claim 2 , wherein the ethylene glycol selectivity is continuously or periodically determined and compared with a one or more pre-set thresholds and wherein additional heterogeneous catalyst is provided to the reactor if such a threshold is reached or exceeded.6. The process according to any one of to claim 2 , wherein the catalyst system is a catalyst system including:a) a homogeneous catalyst, that is residing in the reactor, ...

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Номер записи: 76
07-01-2021 дата публикации

Core-Shell Copolymer, Method for Preparing the Same and Thermoplastic Resin Composition Containing the Same

Номер: US20210002193A1
Автор: Kim Yoon Ho, Lee Hye Rim, Yoo Ki Hyun
Принадлежит: LG CHEM, LTD.

A core-shell copolymer, a method of making the same, and a thermoplastic resin including the same are disclosed herein. In some embodiments, a core-shell copolymer including a core and a shell surrounding the core, wherein the core includes a first alkyl(meth)acrylate monomer-derived repeating unit having 1 to 8 carbon atoms and a terminal-modified polydimethylsiloxane crosslinking agent-derived crosslinking part wherein the terminal-modified polydimethylsiloxane crosslinking agent includes a second alkyl(meth)acrylate monomer-derived modified part at both terminals of the polydimethylsiloxane. 1. A core-shell copolymer comprising:a core; anda shell surrounding the core,wherein the core includes a first alkyl(meth)acrylate monomer-derived repeating unit having 1 to 8 carbon atoms and a terminal-modified polydimethylsiloxane crosslinking agent-derived crosslinking part, andwherein the terminal-modified polydimethylsiloxane crosslinking agent includes a second alkyl(meth)acrylate monomer-derived modified part at both terminals of the polydimethylsiloxane.2. The core-shell copolymer of claim 1 , wherein the core has an average particle diameter of 150 nm to 500 nm.3. The core-shell copolymer of claim 1 , wherein the core has an average particle diameter of 185 nm to 260 nm.5. The core-shell copolymer of claim 4 , wherein Rand Rare each independently an alkylene group having 1 to 8 carbon atoms claim 4 , and n is 10 to 330.6. The core-shell copolymer of claim 1 , wherein the core includes 70 parts by weight to 95 parts by weight of the first alkyl(meth)acrylate monomer-derived repeating unit and 0.01 parts by weight to 5 parts by weight of the terminal-modified polydimethylsiloxane crosslinking agent-derived crosslinking part claim 1 , based on 100 parts by weight of the core-shell copolymer.7. The core-shell copolymer of claim 1 , wherein the core includes 83 parts by weight to 88 parts by weight of the first alkyl(meth)acrylate monomer-derived repeating unit and 0.1 ...

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Номер записи: 77
05-01-2017 дата публикации

PROPYLENE PRODUCTION USING A MESOPOROUS SILICA FOAM METATHESIS CATALYST

Номер: US20170001925A1
Автор: ABUDAWOUD RAED, AITANI ABDULLAH M., Akhtar Mohammad Naseem, Al-Khattaf Sulaiman Saleh, Al-Yami Mohammed A., Bhuiyan Tazul Islam, Palani Arudra
Принадлежит:

Embodiments of a metathesis process for producing propylene comprise providing a metathesis catalyst comprising an amorphous mesoporous silica foam impregnated with metal oxides, where the metathesis catalyst has a pore size distribution of at least 3 nm to 40 nm and a total pore volume of at least 0.700 cm/g. The process further involves producing a product stream comprising propylene by contacting a feed stream comprising butene with the metathesis catalyst. 1. A metathesis process for producing propylene comprising:{'sup': '3', 'providing a metathesis catalyst comprising an amorphous mesoporous silica foam impregnated with metal oxides, where the metathesis catalyst has a pore size distribution of at least 3 nm to 40 nm and a total pore volume of at least 0.700 cm/g; and'}producing a product stream comprising propylene by contacting a feed stream comprising butene with the metathesis catalyst.2. The process of further comprising tri-block copolymer structuring agent claim 1 , where the tri-block copolymer structuring agent is poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) structure.3. The process of where the metathesis catalyst catalyzes isomerization of 2-butene to 1-butene followed by cross-metathesis of 2-butene and 1-butene into a metathesis product stream comprising propylene4. The process of where at least 90% of the 2-butene is converted to 1-butene via isomerization.5. The process of where the pore size distribution is from at least 4 nm to 10 nm and the total pore volume is from at least 0.800 cm/g to 1.5 cm/g.6. The process of where the metathesis catalyst has a total acidity from 0.125 mmol/g to 0.500 mmol/g claim 1 , and a surface area of 400 to 500 m/g.7. The process of where the metal oxide is an oxide of molybdenum claim 1 , rhenium claim 1 , tungsten claim 1 , or combinations thereof.8. The process of where the metal oxide is tungsten oxide.9. The process of where the metathesis catalyst has a molar ratio for ...

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Номер записи: 78
05-01-2017 дата публикации

SYSTEMS AND METHODS FOR PRODUCING PROPYLENE

Номер: US20170001926A1
Автор: Jamal Aqil, Shaikh Sohel, Zhang Zhonglin
Принадлежит: Saudi Arabian Oil Company

According to one embodiment described in this disclosure, a process for producing propylene may comprise at least partially metathesizing a first stream comprising at least about 10 wt. % butene to form a metathesis-reaction product, at least partially cracking the metathesis-reaction product to form a cracking-reaction product comprising propylene, and at least partially separating propylene from the cracking-reaction product to form a product stream comprising at least about 80 wt. % propylene. 1. A process for producing propylene , the process comprising:{'sup': '3', 'at least partially metathesizing a first composition comprising at least 10 wt. % butene to form a metathesis-reaction product, where the first composition is metathesized with a metathesis catalyst comprising a mesoporous silica catalyst impregnated with metal oxide, where the mesoporous silica catalyst includes a pore size distribution of about 2.5 nm to about 40 nm and a total pore volume of at least about 0.600 cm/g;'}at least partially cracking the metathesis-reaction product to form a cracking-reaction product comprising propylene, where the metathesis-reaction product is cracked with a cracking catalyst comprising a mordenite framework inverted (MFI) structured silica catalyst, where the MFI structured silica catalyst includes total acidity of 0.001 mmol/g to 0.1 mmol/g; andat least partially separating propylene from the cracking-reaction product to form a product composition comprising at least 80 wt. % propylene.2. The process of claim 1 , where the MFI structured silica catalyst has a pore size distribution of at least 1.5 nm to 3 nm.3. The process of claim 1 , where the MFI structured silica catalyst is free of acidity modifiers selected from the group consisting of rare earth modifiers claim 1 , phosphorus modifiers claim 1 , potassium modifiers claim 1 , and combinations thereof.4. The process of claim 1 , where the metathesis catalyst is positioned generally upstream of the cracking ...

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Номер записи: 79
05-01-2017 дата публикации

DUAL CATALYST SYSTEM FOR PROPYLENE PRODUCTION

Номер: US20170001927A1
Автор: AITANI ABDULLAH M., Akhtar Mohammad Naseem, Al-Khattaf Sulaiman Saleh, Al-Yami Mohammed A., Bhuiyan Tazul Islam, Palani Arudra, Shaikh Sohel
Принадлежит:

Embodiments of processes for producing propylene utilize a dual catalyst system comprising a mesoporous silica catalyst impregnated with metal oxide and a mordenite framework inverted (MFI) structured silica catalyst downstream of the mesoporous silica catalyst, where the mesoporous silica catalyst includes a pore size distribution of at least 2.5 nm to 40 nm and a total pore volume of at least 0.600 cm/g, and the MFI structured silica catalyst has a total acidity of 0.001 mmol/g to 0.1 mmol/g. The propylene is produced from the butene stream via metathesis by contacting the mesoporous silica catalyst and subsequent cracking by contacting the MFI structured silica catalyst. 1. A process for production of propylene comprising: [{'sup': '3', 'a mesoporous silica catalyst impregnated with metal oxide, where the mesoporous silica catalyst includes a pore size distribution of about 2.5 nm to about 40 nm and a total pore volume of at least about 0.600 cm/g, and'}, 'a mordenite framework inverted (MFI) structured silica catalyst downstream of the mesoporous silica catalyst, where the MFI structured silica catalyst includes a total acidity of 0.001 mmol/g to 0.1 mmol/g,, 'providing a dual catalyst system comprisingproducing propylene from a stream comprising butene via metathesis and cracking by contacting the stream comprising butene with the dual catalyst system, where the stream comprising butene contacts the mesoporous silica catalyst before contacting the MFI structured silica catalyst.2. The process of where the MFI structured silica catalyst has a pore size distribution of at least 1.5 nm to 3 nm.3. The process of where the MFI structured silica catalyst is free of acidity modifiers selected from the group consisting of rare earth modifiers claim 1 , phosphorus modifiers claim 1 , potassium modifiers claim 1 , and combinations thereof.4. The process of where the mesoporous silica catalyst catalyzes isomerization of 2-butene to 1-butene followed by cross-metathesis of ...

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Номер записи: 80
05-01-2017 дата публикации

Systems and methods for producing propylene

Номер: US20170001928A1
Автор: AQIL Jamal, Sohel Shaikh, Zhonglin Zhang
Принадлежит: Saudi Arabian Oil Co

According to one or more embodiments described herein, a process for producing propylene, the process comprising at least partially metathesizing a first portion of a first stream to form a first metathesis-reaction product, at least partially cracking the first metathesis-reaction product to form a cracking-reaction product, the cracking reaction product comprising propylene and ethylene, at least partially separating ethylene from at least the cracking reaction product to form a first recycle stream, combining the first recycle stream with a second portion of the first stream to a form a mixed stream, and at least partially metathesizing the mixed stream to from a second metathesis-reaction product. In embodiments, the second metathesis-reaction product may comprise propylene, the first stream may comprise butene, and the first recycle stream may comprise ethylene.

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Номер записи: 81
04-01-2018 дата публикации

PROCESS FOR PREPARING ETHYLENE GLYCOL FROM A CARBOHYDRATE

Номер: US20180002258A1
Автор: Gruter Gerardus Johannes Maria, van der Waal Jan Cornelis
Принадлежит:

Ethylene glycol is prepared from a carbohydrate source in a process, 1. Process for preparing ethylene glycol from a carbohydrate source ,wherein hydrogen, the carbohydrate source, a liquid diluent and a catalyst system are introduced as reactants into a reaction zone;wherein the catalyst system comprises a tungsten compound and at least one hydrogenolysis metal selected from the groups 8, 9 or 10 of the Periodic Table of the Elements;wherein the diluent that is introduced into the reaction zone comprises an alkylene glycol; andwherein the carbohydrate source is reacted with hydrogen in the presence of the catalyst system to yield an ethylene glycol-containing product.2. Process according to claim 1 , wherein the diluents comprises ethylene glycol.3. Process according to claim 1 , wherein the carbohydrate source is selected from the group consisting of polysaccharides claim 1 , oligosaccharides claim 1 , disaccharides claim 1 , and monosaccharides.4. Process according to claim 1 , wherein the carbohydrate source is selected from the group consisting of cellulose claim 1 , starch claim 1 , hemicellulose claim 1 , hemicellulose sugars claim 1 , glucose and combinations thereof.5. Process according to claim 1 , wherein the catalyst system comprises a tungsten compound that has an oxidation state of at least +2.6. Process according to claim 1 , wherein the catalyst system comprises a tungsten compound selected from the group consisting of tungstic acid (HWO) claim 1 , ammonium tungstate claim 1 , ammonium metatungstate claim 1 , ammonium paratungstate claim 1 , tungstate compounds comprising at least one Group 1 or 2 element claim 1 , metatungstate compounds comprising at least one Group 1 or 2 element claim 1 , paratungstate compounds comprising at least one Group 1 or 2 element claim 1 , tungsten oxide (WO) claim 1 , heteropoly compounds of tungsten claim 1 , and combinations thereof.7. Process according to claim 6 , wherein the catalyst system comprises tungstic acid ...

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Номер записи: 82
04-01-2018 дата публикации

METHOD FOR SYNTHESIZING AN ALKENOIC ACID

Номер: US20180002267A1
Автор: Li Xiukai, Zhang Yugen
Принадлежит:

There is provided a method for synthesizing an alkenoic acid, in particular acrylic acid comprising the step of oxidizing an alkenyl alcohol in the presence of a metal oxide catalyst to form the alkenoic acid. The invention further provides a step of deoxydehydrating a polyol, including glycerol to obtain said alkenyl alcohol including an allyl alcohol. 1. A method for synthesizing an alkenoic acid comprising the step of oxidizing an alkenyl alcohol in the presence of a metal oxide catalyst to form said alkenoic acid , wherein said metal oxide catalyst has the formula MoVWO x is a number between 1 to 10;', 'y is a number between 0.05 to 10;', 'm is a number between 1 to 10; and', 'd is calculated based on the formula 3x+2y+3m., 'where'}2. The method of claim 1 , further comprising claim 1 , before said oxidizing step claim 1 , the step of deoxydehydrating a polyol to obtain said alkenyl alcohol.3. The method of claim 2 , wherein said polyol is a triol claim 2 , tetraol claim 2 , pentanol or hexanol.4. The method of claim 3 , wherein said polyol is selected from the group consisting of glycerol claim 3 , 2-methyl-1 claim 3 ,2 claim 3 ,3-propanetriol claim 3 , 1 claim 3 ,2 claim 3 ,3-butanetriol claim 3 , 2-methyl-1 claim 3 ,2 claim 3 ,3-butanetriol claim 3 , 2-methyl-1 claim 3 ,2 claim 3 ,3 claim 3 ,4-butanetetraol claim 3 , 1 claim 3 ,2 claim 3 ,3-pentanetriol claim 3 , 1 claim 3 ,2 claim 3 ,3-hexanetriol claim 3 , xylitol claim 3 , sorbitol claim 3 , arabinitol claim 3 , ribitol claim 3 , mannitol claim 3 , galactitol claim 3 , iditol claim 3 , erythritol claim 3 , threitol and mixtures thereof.5. The method of claim 1 , wherein said alkenyl alcohol is 2-alkenyl alcohol.6. The method of claim 5 , wherein said 2-alkenyl alcohol is selected from the group consisting of allyl alcohol claim 5 , 2-buten-1-ol claim 5 , 2-hexen-1-ol claim 5 , 2-penten-1 claim 5 ,4 claim 5 ,5-triol claim 5 , 2 claim 5 ,4-hexadien-1 claim 5 ,6-diol claim 5 , 2-hexene-1 claim 5 ,4 claim 5 ,5 ...

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Номер записи: 83
07-01-2021 дата публикации

ULTRASONIC OXIDATIVE DESULFURIZATION OF HEAVY FUEL OILS

Номер: US20210002562A1
Автор: CARBOGNANI Lante Antonio, PEREIRA ALMAO Pedro, SCOTT Carlos Eduardo
Принадлежит:

The invention relates to systems and methods for ultrasonic oxidative desulfurization of heavy fuel oils. In various embodiments, the methods include combinations of ultrasonic sulfone decomposition processes and/or catalytic decomposition processes. 1. A method for desulfurization of a heavy fuel oil containing sulfur comprising the steps of:a) subjecting a heavy fuel oil to an ultrasonic oxidation process in the presence ofan aqueous oxidizing agent to form a sulfone rich effluent;b) subjecting the sulfone rich effluent to one or more of:i) a hydro catalytic sulfones decomposition process (HDP), orii) a steam catalytic sulfone decomposition process (SDP)to form a desulfurized heavy fuel oil.2. The method as in where step b) i) includes processing the sulfone rich effluent through a hydro catalytic reactor having a reducing/desulfonating hydrogenating catalyst selected from: MoC claim 1 , MoOC claim 1 , MoOCNo.3. The method as in where step b) i) includes processing the sulfone rich effluent through a hydro catalytic reactor having an oxidizing/desulfonating hydroprocessing catalyst selected from metallic carbides claim 1 , oxy-carbides and nitrides and mixtures of thereof.4. The method as in where step b) i) includes processing the sulfone rich effluent through a hydro catalytic reactor having an oxidizing/desulfonating hydroprocessing catalyst selected from molybdenum and tungsten and mixtures thereof.5. The method as in where step b) i) includes processing the sulfone rich effluent through a hydro catalytic reactor having an oxidizing/desulfonating hydroprocessing catalyst selected from bi- claim 1 , tri- claim 1 , tetra or penta-metallic oxides combinations having elements from groups 1 and 2 including Na claim 1 , K claim 1 , Cs claim 1 , Ca claim 1 , Mg or Ba;elements from groups 4, 5, 6 7, 8, 9 10, 11 including Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Mo, Zr or Ce and elements from groups 13, 14, 15 including Al, Si, P which maybe impregnated with noble metals ...

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Номер записи: 84
03-01-2019 дата публикации

Sustainable Oxygen Carriers for Chemical Looping Combustion with Oxygen Uncoupling and Methods for Their Manufacture

Номер: US20190003704A1
Автор: Anita Skulimowska, Asunción ARANDA
Принадлежит: Institutt for Energiteknikk IFE

An oxygen carrier (OC) for use in Chemical Looping technology with Oxygen Uncoupling (CLOU) for the combustion of carbonaceous fuels, in which commercial grade metal oxides selected from the group consisting of Cu, Mn, and Co oxides and mixtures thereof constitute a primary oxygen carrier component. The oxygen carrier contains, at least, a secondary oxygen carrier component which is comprised by low-value industrial materials which already contain metal oxides selected from the group consisting of Cu, Mn, Co, Fe, Ni oxides or mixtures thereof. The secondary oxygen carrier component has a minimum oxygen carrying capacity of 1 g of O2 per 100 g material in chemical looping reactions. Methods for the manufacture of the OC are also disclosed.

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Номер записи: 85
01-01-2015 дата публикации

CATALYST AND PROCESS FOR PREPARING ACROLEIN AND/OR ACRYLIC ACID BY DEHYDRATION REACTION OF GLYCERIN

Номер: US20150005526A1
Автор: Devaux Jean-Francois, Dubois Jean-Luc, Magatani Yasuhiro, Okumura Kimito
Принадлежит:

A catalyst composition comprising at least an heteropolyacid deposited on a porous titania carrier. 126-. (canceled)27. A process for preparing acrolein by dehydration of glycerin , carried out in the presence of a catalyst , wherein the catalyst composition comprising at least an heteropolyacid in which protons in the hetropolyacid may be partially exchanged by at least one cation selected from elements belonging to Group 1 to Group 16 of the Periodic Table of Elements that have been deposited on a porous titania carrier.29. The process of claim 27 , in which said titania carrier comprises rutile or anatase or amorphous titanium oxide.30. The process of claim 27 , in which said titania earner comprises at least 80% anatase.31. The process of claim 27 , in which said cation is at least one alkali metal cation.32. The process of claim 27 , in which said alkali metal is cesium.33. The process of claim 28 , in which said compound contains at least one element selected from the group comprising W claim 28 , Mo and V.34. A process for preparing acrolein by dehydration of glycerin claim 28 , carried out in the presence of a catalyst claim 28 , wherein the catalyst is prepared according to a method for preparing a catalyst composition comprising impregnating a titania carrier with a solution of at least one metal selected from elements belonging to the Group 1 to Group 16 of the Periodic Table of Elements or onium claim 28 , drying and firing the resulting solid mixture claim 28 , secondly impregnating the resulting solid mixture with a solution of heteropolyacid claim 28 , drying claim 28 , and firing the resulting solid mixture.35. A process for preparing acrolein by dehydration of glycerin claim 28 , carried out in the presence of a catalyst claim 28 , wherein the catalyst is prepared according to a method for preparing a catalyst composition comprising impregnating a titania carrier with a solution of heteropolyacid claim 28 , drying and firing the resulting solid ...

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Номер записи: 86
12-01-2017 дата публикации

CATALYTIC CONVERTER

Номер: US20170007985A1
Автор: Bauer Juergen, Dotzel Ralf, Jodlauk Joerg Walter, Leppelt Rainer, Muench Joerg Werner
Принадлежит:

In order to specify a catalytic converter, especially SCR catalytic converter, with maximum catalytic activity, this catalytic converter has at least one catalytically active component and additionally at least one porous inorganic filler component having meso- or macroporosity. The organic porous filler component has a proportion of about 5 to 50% by weight. More particularly, a diatomaceous earth or a pillared clay material is used as the porous inorganic filler component. 1. A catalytic converter comprising: (a) a base component comprising at least one catalytically active component , a binder component and optionally fibres that provide mechanical stability; and (b) at least one porous inorganic filler component , wherein the inorganic filler component has at least mesoporosity.2. The catalytic converter according to claim 1 , wherein at least one catalytically active component is an SCR catalyst.3. The catalytic converter according to claim 1 , wherein:the at least one catalytically active component, the binder component, and the fibers, if present, are present in a defined ratio of proportions by weight relative to one another, andthe catalytic converter has at least a same catalytic activity as a comparative catalytic converter without a filler component and with the same catalytically active component, the binder component, and the fibers, if present, having same defined ratio of proportions relative to one another.4. The catalytic converter according to claim 1 , wherein the inorganic porous filler component is present within the range from 5 to 50% by weight relative to the total weight of the catalytic converter.5. The catalytic converter according to claim 4 , wherein the inorganic porous filler component is present within the range from 10 to 25% by weight claim 4 , relative to the weight of the catalytic converter.6. The catalytic converter according to claim 1 , wherein the at least one porous filler component comprises a clay material.7. The ...

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Номер записи: 87
08-01-2015 дата публикации

MICROWAVE CATALYST AND PREPARATION PROCESS AND USE THEREOF

Номер: US20150010455A1
Автор: Gao Lingfei, Jiang Zunfang, Mao Guiyue, WANG Hongli, Wang Meng, Wang Zhe, Zhou Jicheng
Принадлежит:

Provided is a microwave catalyst. The microwave catalyst comprises: i) an active catalyst component comprising a metal and/or a metal oxide; ii) a microwave-absorbing component comprising at least one of CuO, ferrite spinel, and active carbon; and iii) a support. The microwave catalyst can be used for denitration by microwave catalysis, and has advantages such as high denitration efficiency, low energy consumption, environmental friendliness, and low costs. Also provided is a process for preparing the microwave catalyst and the use thereof. 1. A microwave catalyst , comprising:i) an active catalyst component, comprising a metal and/or a metal oxide;ii) a microwave-absorbing component, comprising at least one of CuO, ferrite spinel, and active carbon; andiii) a support.2. The microwave catalyst according to claim 1 , wherein the metal is at least one selected from the group consisting of Cu claim 1 , Mn claim 1 , Ce claim 1 , Ti claim 1 , V claim 1 , Mg claim 1 , and Fe claim 1 , preferably Cu; and the metal oxide is at least one oxide selected from the oxides of Cu claim 1 , Mn claim 1 , Ce claim 1 , Ti claim 1 , V claim 1 , Mg claim 1 , and Fe claim 1 , preferably CuO.3. The microwave catalyst according to claim 1 , wherein the support has a porous structure capable of absorbing microwave claim 1 , preferably being active carbon and/or a molecular sieve.4. The microwave catalyst according to claim 3 , wherein the molecular sieve is a ZSM-type molecular sieve claim 3 , Y-type molecular sieve claim 3 , or 13-type molecular sieve claim 3 , preferably a ZSM-5 molecular sieve.5. The microwave catalyst according to claim 1 , wherein the catalyst preferably contains Cu-ZSM-5 or Cu—Y.6. The microwave catalyst according to claim 5 , wherein the content of Cu in Cu-ZSM-5 is in the range from 2% to 12% by mass.7. The microwave catalyst according to claim 5 , wherein the content of Cu in Cu—Y is in the range from 2% to 15% by mass.8. The microwave catalyst according to claim 1 ...

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Номер записи: 88
11-01-2018 дата публикации

Hydrocarbon Synthesis Catalyst, Its Preparation Process and Its Use

Номер: US20180008961A1
Автор: BOTHA Jan Mattheus, Cullen Adam, Meyer Rita, Taljaard Jana Heloise, Visagie Jacobus Lucas
Принадлежит:

The present invention relates to catalysts, more particularly to a cobalt-containing catalyst composition. The present invention further relates to a process for preparing a cobalt-containing catalyst precursor, a process for preparing a cobalt-containing catalyst, and a hydrocarbon synthesis process wherein such a catalyst is used. According to a first aspect of the invention, there is provided a cobalt-containing catalyst composition comprising cobalt and/or a cobalt compound supported on and/or in a catalyst support; the catalyst composition also including a titanium compound on and/or in the catalyst support, and a manganese compound on and/or in the catalyst support. 1. A cobalt-containing catalyst composition comprising cobalt and/or a cobalt compound supported on and/or in a catalyst support; the catalyst composition also including a titanium compound on and/or in the catalyst support , and a manganese compound on and/or in the catalyst support.2. The catalyst composition of wherein the catalyst composition includes a dopant capable of enhancing the reducibility of the cobalt compound.3. The catalyst composition of either one of or wherein the catalyst support is selected from the group consisting of alumina in the form of one or more aluminium oxides; silica (SiO); titania (TiO); magnesia (MgO); zinc oxide (ZnO); silicon carbide; and mixtures thereof.4. The catalyst composition of wherein the catalyst support is an alumina catalyst support or a silica (SiO) catalyst support.5. A process for preparing a cobalt-containing catalyst precursor claim 3 , the process comprising introducing a cobalt compound onto and/or into a catalyst support; prior to and/or during and/or subsequent to introducing the cobalt compound onto and/or into the catalyst support claim 3 , introducing a titanium compound onto and/or into the catalyst support; and prior to claim 3 , and/or during claim 3 , and/or subsequent to introducing the cobalt compound onto and/or into the catalyst ...

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Номер записи: 89
14-01-2016 дата публикации

Catalysts for the mechanocatalytic oxidative depolymerization of polymer-containing materials and methods of making oxidized reaction products using same

Номер: US20160009621A1
Автор: Richard Blair
Принадлежит: University of Central Florida Research Foundation Inc UCFRF

The presently disclosed and/or claimed inventive concept(s) relates generally to oxidative oxidized reaction products made from the mechanocatalytic oxidative depolymerization of lignin. More particularly, but without limitation, the mechanocatalytic oxidative depolymerization of lignin is performed in a non-aqueous/non-solvent based and solvent-free process, i.e., via a solid-solid mechanocatalytic oxidative reaction methodology. In one particular embodiment, the process of making such oxidative oxidized reaction products includes, without limitation, the step of mechanocatalytically reacting an oxidation catalyst with lignin or a lignin-containing material. The oxidative reaction products obtained from the process include, for example, at least one of vanillin, and syringealdehyde, vanillic acid, and syringic acid.

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Номер записи: 90
14-01-2021 дата публикации

SELECTIVE CATALYTIC REDUCTION CATALYST COMPOSITION

Номер: US20210008524A1
Автор: Bauer Jürgen, Dotzel Ralf, Muench Joerg Werner, Purova Ralitsa, SCHWIEGER Wilhelm, Selvam Thangaraj, Shahid Ameen
Принадлежит:

A SCR catalyst composition comprises a SCR catalyst; and a binder comprising a porous inorganic material, wherein the porous inorganic material comprises a disordered arrangement of delaminated layers, has a disordered porous structure, and has a multimodal pore size distribution comprising at least a first modal maximum having a macroporous or mesoporous pore size and a second modal maximum having a microporous pore size. The SCR catalyst composition can be manufactured using the method comprising the steps of: (i) providing an inorganic material having a layered structure; (ii) contacting the material with a cationic surfactant to form a swollen material; (iii) agitating the swollen material to form an agitated material; and (iv) calcining the agitated material to recover a delaminated inorganic material, wherein an SCR catalyst is mixed with the inorganic material prior to step (iv). 1. A selective catalytic reduction (SCR) catalyst composition comprising:a SCR catalyst; anda binder comprising a porous inorganic material,wherein the porous inorganic material comprises a disordered arrangement of delaminated layers, has a disordered porous structure, and has a multimodal pore size distribution comprising at least a first modal maximum having a macroporous or mesoporous pore size and a second modal maximum having a microporous pore size.2. The SCR catalyst composition of claim 1 , wherein the multimodal pore size distribution is bimodal.3. The SCR catalyst composition of claim 1 , wherein a powder X-ray diffraction pattern of the porous inorganic material obtained using Cu Kα radiation is devoid of peaks at 2θ values of 10° or less.4. The SCR catalyst composition of claim 1 , wherein the first modal maximum has a mesoporous and/or macroporous pore size.5. The SCR catalyst of claim 1 , wherein the delaminated layers are delaminated silicate layers.6. The SCR catalyst composition of claim 1 , wherein the porous inorganic material comprises one or more of: a clay ...

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Номер записи: 91
14-01-2021 дата публикации

REGENERATION METHOD AND DEVICE OF POISONING HONEYCOMB CATALYST

Номер: US20210008536A1
Автор: Shen Boxiong
Принадлежит: HEBEI UNIVERSITY OF TECHNOLOGY

The present invention provides a regeneration method and a regeneration device of a poisoning honeycomb catalyst, and belongs to the field of catalyst regeneration. The regeneration method of the poisoning honeycomb catalyst provided by the present invention includes the following steps: carrying out microwave heating treatment on the poisoning honeycomb catalyst, and then spraying liquid nitrogen into cells of the poisoning honeycomb catalyst so that the poisoning honeycomb catalyst is regenerated. The regeneration method provided by the present invention is simple, and the efficiency of the regenerated catalyst can be increased by 90% more than the original efficiency. According to the regeneration device of a poisoning honeycomb catalyst provided by the present invention, the catalyst regeneration is carried out by using the regeneration device provided by the present invention, the regeneration operation is simple, and the catalytic efficiency of the regenerated catalyst is improved. 1. A regeneration method of a poisoning honeycomb catalyst , comprising the following steps:carrying out microwave heating treatment on the poisoning honeycomb catalyst, and then spraying liquid nitrogen into cells of the poisoning honeycomb catalyst so that the poisoning honeycomb catalyst is regenerated.2. The regeneration method according to claim 1 , wherein the microwave heating treatment and liquid nitrogen spraying treatment are carried out repeatedly for 3-5 times.3. The regeneration method according to claim 1 , wherein through-cells are formed in the poisoning honeycomb catalyst claim 1 , and side lengths or diameters of the cells are 3-12 mm.4. The regeneration method according to claim 1 , wherein an active ingredient of the poisoning honeycomb catalyst comprises VO-WO/TiO.5. The regeneration method according to claim 1 , wherein the power of the microwave heating treatment is 600-1200 W; the temperature of microwave heating is 400-480° C.; and the time of microwave ...

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Номер записи: 92
12-01-2017 дата публикации

NITROGEN OXIDES (NOx) STORAGE CATALYST

Номер: US20170009623A1
Автор: Armitage Andrew, CHIFFEY ANDREW FRANCIS, GOODWIN John Benjamin, LASTRA-CALVO Nuria, LEELAND James, Moreau François, PHILLIPS PAUL RICHARD, REID STUART DAVID, SWALLOW DANIEL, XUEREB David
Принадлежит:

A catalyst for storing nitrogen oxides (NO) in an exhaust gas from a lean burn engine comprising a NOstorage material and a substrate, wherein the NOstorage material comprises a NOstorage component and an NO oxidation promoter on a support material, wherein the NO oxidation promoter is manganese or an oxide, hydroxide or carbonate thereof. 1. A catalyst for storing nitrogen oxides (NO) in an exhaust gas from a lean burn engine comprising a NOstorage material and a substrate , wherein the NOstorage material comprises a NOstorage component and an NO oxidation promoter on a support material , wherein the NO oxidation promoter is manganese or an oxide , hydroxide or carbonate thereof.2. A catalyst according to claim 1 , wherein the storage material comprises a mixed oxide of magnesium oxide (MgO) and aluminium oxide (AlO).3. A catalyst according to claim 1 , wherein the NOstorage component comprises (i) an oxide claim 1 , a carbonate or a hydroxide of an alkali metal; (ii) an oxide claim 1 , a carbonate or a hydroxide of an alkaline earth metal; and/or (iii) an oxide claim 1 , a carbonate or a hydroxide of a rare earth metal claim 1 , preferably the NOstorage component comprises an oxide claim 1 , a carbonate or a hydroxide of barium (Ba).4. A catalyst according to claim 1 , wherein the NOstorage material further comprises a platinum group metal (PGM) selected from platinum claim 1 , palladium and a combination of platinum and palladium.5. A catalyst according to claim 1 , wherein the NOstorage material does not comprise at least one of platinum and palladium.6. A catalyst according to comprising a NOstorage region disposed on the substrate claim 1 , wherein the NOstorage region comprises the NOstorage material.7. A catalyst according to claim 6 , wherein the NOstorage region further comprises a NOtreatment material claim 6 , wherein the NOtreatment material comprises at least one of a first NOtreatment component and a second NOtreatment component.8. A catalyst ...

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Номер записи: 93
10-01-2019 дата публикации

Solid-phase catalyst for decomposing hydrogen peroxide and method for producing same

Номер: US20190009253A1
Автор: Beom Sik Kim, Iljeong Heo, Jeong Kwon Suh, Ji Hoon Park, Ji Na Choi, Soo Min KIM, Tae Sun Chang, YUN Ho Jeong
Принадлежит: Korea Research Institute of Chemical Technology KRICT, NF CO Ltd

The present invention provides a solid-phase catalyst for decomposing hydrogen peroxide comprising a permanganate salt and a manganese (II) salt. The solid-phase catalyst stays a solid state in the form of nanoparticles at the time of hydrogen peroxide decomposition, and thus can be recovered for reuse and also has an excellent decomposition rate. In the method for producing a solid-phase catalyst for decomposing hydrogen peroxide according to the present invention, a solid-phase catalyst is produced from a solution containing a permanganate salt, a manganese (II) salt, and an organic acid, so that the produced solid-phase catalyst is precipitated as a solid component even after a catalytic reaction, and thus is reusable and environmentally friendly, and cost reduction can be achieved through the simplification of a catalyst production technique.

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Номер записи: 94
10-01-2019 дата публикации

COMPOSITE CATALYST FOR COAL DEPOLYMERIZATION AND USING METHOD THEREFOR

Номер: US20190009256A1
Автор: HAO Xiaogang, HUAI Juntian, Huang Wei, LIANG Litong, Liu Jianwei, Zhang Qian, Zhang Zhonglin
Принадлежит:

A composite catalyst for coal depolymerization, the catalyst includes an agent A and an agent B. The agent A includes an iron salt-based catalyst, and the agent B includes a metal salt-based catalyst different from the iron salt-based catalyst. The agent A and the agent B are alternately added during use. 1. A composite catalyst for coal depolymerization , comprising an agent A and an agent B; wherein the agent A and the agent B are alternately added during use; the agent A comprises an iron salt-based catalyst; and the agent B comprises a metal salt-based catalyst different from the iron salt-based catalyst.2. The composite catalyst of claim 1 , wherein a weight percentage of the iron salt-based catalyst is 3% to 25% in the agent A.3. The composite catalyst of claim 2 , wherein the iron salt-based catalyst consists of at least one of ferric chloride and ferric nitrate.4. The composite catalyst of claim 3 , wherein the agent A further consists of at least one of a first inorganic accelerator claim 3 , a first organic accelerator claim 3 , a first surfactant and a first solvent.5. The composite catalyst of claim 4 , wherein the agent. A comprises the iron salt-based catalyst claim 4 , the first inorganic accelerator claim 4 , the first organic accelerator claim 4 , the first surfactant claim 4 , and the first solvent;weight percentages of the first inorganic accelerator, the first organic accelerator and the first surfactant are 0.5 to 2%, 1 to 10%, and 0 05 to 2.0% in the agent A, respectively; and a balance is the first solvent.6. The composite catalyst of claim 5 , wherein the first inorganic accelerator consists of at least one of potassium permanganate claim 5 , potassium dichromate claim 5 , potassium peroxydisulfate claim 5 , and hydrogen peroxide; the first organic accelerator consists of at least one of methanol and ethanol; the first surfactant consists of at least one of fatty alcohol oxyethylene ether claim 5 , sodium dodecyl benzene sulfonate claim 5 , ...

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Номер записи: 95
11-01-2018 дата публикации

METHOD FOR CATALYTIC CONVERSION OF KETOACIDS AND HYDROTREAMENT TO HYDROCARBONS

Номер: US20180009731A9
Автор: IKONEN Elias, KÄLDSTRÖM Mats, LINDBLAD Marina, SELÄNTAUS Maaria
Принадлежит: Neste Oyj

Catalytic conversion of ketoacids is disclosed, including methods for increasing the molecular weight of ketoacids. An exemplary method includes providing in a reactor a feedstock having at least one ketoacid. The feedstock is then subjected to one or more C—C-coupling reaction(s) in the presence of a catalyst system having a first metal oxide and a second metal oxide. 1. A method for increasing the molecular weight of a ketoacid , the method comprising:providing in a reactor a feedstock having at least one ketoacid; andsubjecting the feedstock to one or more C—C-coupling reaction(s), wherein the C—C-coupling reaction(s) are conducted in a presence of a solid acid catalyst system having a first metal oxide and a second metal oxide, and wherein a content of the at least one ketoacid in the feedstock is at least 30 wt-%.2. The method according to claim 1 , wherein the catalyst system has a specific surface area of from 10 to 500 m/g.3. The method according to claim 1 , wherein a total amount of the acid sites of the catalyst system ranges between 30 and 500 μmol/g.4. The method according to claim 1 , wherein the at least one ketoacid is a γ-ketoacid acid.5. The method according to claim 1 , wherein the content of the at least one ketoacid in the feedstock is at least 40 wt-% claim 1 , and/or the content of water in the feedstock is less than 5.0 wt-%.6. The method according to claim 1 , wherein the first metal oxide comprises:an oxide of one of W, Be, B, Mg, Si, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Sr, Y, Zr, Nb, Mo, Cd, Sn, Sb, Bi, La, Ce, Th, and the second metal oxide comprises:an oxide of one of Zr, Ti, Si, Al, V, Cr or a combination of these, the first metal oxide not being same as the second metal oxide.7. The method according to claim 1 , wherein the first metal oxide is supported on a metal oxide carrier claim 1 , wherein the carrier is selected from the group consisting of zirconia claim 1 , titania claim 1 , silica claim 1 , vanadium oxide claim 1 ...

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Номер записи: 96
09-01-2020 дата публикации

CATALYST FOR OXIDATIVE COUPLING OF METHANE, PREPARATION METHOD THEREOF AND APPLICATION THEREOF

Номер: US20200009534A1
Автор: HE Mingyuan, Liu Ye, Lu Yong, Wang Pengwei, Zhang Xin, Zhao Guofeng
Принадлежит:

A catalyst for oxidative coupling of methane, and preparation and application thereof. The catalyst comprises: a manganese sesquioxide, a tungstate, a manganese composite oxide having a perovskite structure and/or a spinel structure, and a carrier. The manganese sesquioxide, tungstate, and manganese composite oxide having a perovskite structure and/or a spinel structure are supported on the carrier, or the manganese sesquioxide and tungstate are supported on the admixture of the said manganese composite oxide having a perovskite structure and/or a spinel structure and the said carrier. Based on 100 parts by weight of the catalyst, the content of the manganese sesquioxide is a parts by weight, the content of the tungstate is b parts by weight, the content of the manganese composite oxide having the perovskite structure and/or the spinel structure is c parts by weight. e content of the carrier is d parts by weight. 0 Подробнее

Номер записи: 97
09-01-2020 дата публикации

MATERIALS AND METHODS FOR OXIDATIVE DEHYDROGENATION OF ALKYL AROMATIC COMPOUNDS INVOLVING LATTICE OXYGEN OF TRANSITION METAL OXIDES

Номер: US20200009539A1
Автор: GAO Yunfei, Li Fanxing, ZHU Xing
Принадлежит:

In one aspect, the disclosure relates to a process for dehydrogenating a first dehydrogenation reactant into its unsaturated counterparts. The disclosed process comprises introducing a dehydrogenation reactant to a metal oxide catalyst having dehydrogenation activity, and dehydrogenating the dehydrogenation reactant to provide its unsaturated counterpart and hydrogen; selectively combusting the hydrogen released during dehydrogenation using a lattice oxygen from the metal oxide catalyst, resulting in a reduced metal oxide catalyst and steam; re-oxidizing the reduced metal oxide catalyst by introducing a gaseous oxidant to the reduced metal oxide catalyst; and optionally re-using the re-oxidized metal oxide catalyst for catalytic conversion and combustion. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure. 1. A process for oxidative dehydrogenation , comprising:a. introducing one or more dehydrogenation reactants to a metal oxide catalyst having dehydrogenation activity, and dehydrogenating the one or more dehydrogenation reactants to provide a dehydrogenated reaction product and hydrogen;b. selectively combusting the hydrogen released during dehydrogenation using a lattice oxygen from the metal oxide catalyst, resulting in a reduced metal oxide catalyst and steam;c. re-oxidizing the reduced metal oxide catalyst by introducing a gaseous oxidant to the reduced metal oxide catalyst; and optionallyd. re-using the re-oxidized metal oxide catalyst for a subsequent dehydrogenation and/or selective combustion.2. The process of claim 1 , wherein the dehydrogenation reactants comprise an alkyl aromatic hydrocarbon or a substituted alkyl aromatic hydrocarbon and the dehydrogenated reaction product comprises an alkene aromatic hydrocarbon or substituted alkene aromatic hydrocarbon claim 1 , respectively.3. The process of claim 1 , wherein the dehydrogenation reactants ...

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Номер записи: 98
09-01-2020 дата публикации

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

Номер: US20200009544A1
Автор: Changsheng Chen, Hengdong YANG, Jianglin HU, Ke Ding, Kun Wang, Qingmei JIANG, Wei Zeng, Weiqi Hua, Yanfang SONG, Yang Yang, YUAN Li, Yunhai LIU
Принадлежит: Wanhua Chemical Group Co Ltd

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

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Номер записи: 99
10-01-2019 дата публикации

CATALYSTS FOR PETROCHEMICAL CATALYSIS

Номер: US20190010096A1
Автор: Alcid Marian, Cizeron Joel M., Gamoras Joel, McCormick Jarod, Nyce Greg, Ras Erik-Jan, Rosenberg Daniel, Rumplecker Anja, Schammel Wayne P., Scher Erik C., Zurcher Fabio R.
Принадлежит:

Metal oxide catalysts comprising various dopants are provided. The catalysts are useful as heterogeneous catalysts in a variety of catalytic reactions, for example, the oxidative coupling of methane to C2 hydrocarbons such as ethane and ethylene. Related methods for use and manufacture of the same are also disclosed. 185-. (canceled)86. A method for the oxidative coupling of methane , the method comprising contacting methane with a catalyst at temperatures ranging from about 550° C. to about 750° C. , wherein the method comprises a methane conversion of greater than 20% and a C2 selectivity of greater than 50% , and wherein the catalyst comprises the following formula:{'br': None, 'sub': x', 'y', 'z, 'ABO;'} A is an element from the lanthanides or group 2, 3, 4, 6 or 13;', 'B is an element from groups 4, 12 or 13 of the periodic table or Ce, Pr, Nd, Sm, Eu, Gd, Tb or Ho;', 'O is an oxygen anion; and', 'x, y and z are each independently numbers greater than 0,, 'whereinthe catalyst further comprising one or more dopants from any one of groups 2, 3 or the lanthanides, and provided that A and B are not the same.87. The method of claim 86 , wherein A is Ba claim 86 , Zr claim 86 , Sr claim 86 , Sm claim 86 , Hf claim 86 , Gd claim 86 , Er claim 86 , Y claim 86 , Ca claim 86 , La claim 86 , Mg claim 86 , W claim 86 , B claim 86 , Tb or Ce.88. The method of claim 86 , wherein B is Zn claim 86 , Hf claim 86 , Zr claim 86 , Al claim 86 , Ti claim 86 , Pr claim 86 , Nd claim 86 , Ce claim 86 , Sm claim 86 , Eu claim 86 , Gd claim 86 , Tb or Ho.89. The method of claim 86 , wherein A is from group 2 claim 86 , and B is from group 4.90. The method of claim 86 , wherein A is Ba claim 86 , Sr or Ca.91. The method of claim 86 , wherein B is Ti claim 86 , Zr or Hf.92. The method of claim 86 , wherein the catalyst has the formula ABO.93. The method of claim 86 , wherein the catalyst comprises one or more dopant from group 2.94. The method of claim 86 , wherein the catalyst comprises ...

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Номер записи: 100