Lanthanum Patents (Class 502/303)
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Publication number: 20110207601Abstract: An object of the present invention is to provide an exhaust gas-purifying catalyst containing a composite oxide catalyst and a refractory support and being less prone to cause a decrease in its activity even when used at high temperatures in an atmosphere with high oxygen concentration. An exhaust gas-purifying catalyst includes a composite oxide catalyst containing rare-earth element, alkaline-earth element and precious metal, a part of the rare-earth element and a part of the alkaline-earth element forming composite oxide, and the composite oxide and a part of the precious metal forming solid solution, and a refractory support supporting the composite oxide catalyst and including at least one of a first composite oxide represented by a general formula AB2O4, a second composite oxide having perovskite structure represented by a general formula LMO3, and a third composite oxide having pyrochlore structure represented by a general formula X2Y2O7.Type: ApplicationFiled: April 21, 2011Publication date: August 25, 2011Applicant: CATALER CORPORATIONInventors: Satoshi MATSUEDA, Mareo Kimura, Keiichi Narita
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Patent number: 8003565Abstract: A method and catalysts for producing a hydrogen-rich syngas are disclosed. According to the method a CO-containing gas contacts a water gas shift (WGS) catalyst, optionally in the presence of water, preferably at a temperature of less than about 450° C. to produce a hydrogen-rich gas, such as a hydrogen-rich syngas. Also disclosed is a water gas shift catalyst formulated from: a) Pt, its oxides or mixtures thereof; b) Ru, its oxides or mixtures thereof; and c) at least one of Li, Na, K, Rb, Cs, Mg, Ca, Sr, Ba, Sc, Y, Ti, Zr, V, Mo, Mn, Fe, Co, Rh, Ir, Ge, Sn, Sb, La, Ce, Pr, Sm, and Eu. Another disclosed catalyst formulation comprises Pt, its oxides or mixtures thereof; Ru, its oxides or mixtures thereof; Co, its oxides or mixtures thereof; and at least one of Li, Na, K, Rb, Cs, Mg, Ca, Sr, Ba, Sc, Y, Ti, Zr, V, Mo, Mn, Fe, Rh, Ir, Ge, Sn, Sb, La, Ce, Pr, Sm, and Eu, their oxides and mixtures thereof.Type: GrantFiled: April 28, 2006Date of Patent: August 23, 2011Assignees: Honda Giken Kogyo Kabushiki Kaisha, Freeslate, Inc.Inventors: Alfred Hagemeyer, Raymond E. Carhart, Karin Yaccato, Peter Strasser, Robert K. Grasselli, Christopher James Brooks, Cory Bernard Phillips
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Publication number: 20110201702Abstract: A ferrihydrite catalyst composition can comprise a ferrihydrite of a structural promoter metal, a chemical promoter metal and potassium to form an amorphous nanoparticulate. The ferrihydrite catalyst can be formed by dissolving an iron salt, a structural promoter metal salt and a chemical promoter metal salt in water to form an aqueous iron solution. A ferrihydrite solid can be precipitated from the aqueous iron solution by addition of a precipitating agent under conditions such that the ferrihydrite solid is a nanoparticulate. A potassium can be incorporated into the ferrihydrite solid to form a ferrihydrite catalyst precursor. The ferrihydrite catalyst precursor can be calcined to form the ferrihydrite catalyst. A synthesis gas can be readily converted to a fuel product by contacting the ferrihydrite catalyst with the synthesis gas under reaction conditions sufficient to form a fuel product mixture.Type: ApplicationFiled: August 16, 2010Publication date: August 18, 2011Inventors: Sumit Bali, Garima Bali, Edward M. Eyring, Richard D. Ernst, Ronald J. Pugmire
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Patent number: 7994090Abstract: Provided is a process for readily producing fine particles of a solid solution having a small particle size, comprising a solid solution of zirconia, ceria and a rare earth oxide in a desired composition, and being highly crystalline. The process for producing the fine particles of the solid solution comprises the following steps in the order named: obtaining a melt comprising, in terms of mol % on an oxide basis, from 5 to 50% ZrO2, CeO2 and RE2O3 (where RE is at least one member selected from rare earth elements other than Ce) in total, from 10 to 50% RO (where R is at least one member selected from the group consisting of Mg, Ca, Sr, Ba and Zn), and from 30 to 75% B2O3; quenching the melt to obtain an amorphous material; heating the amorphous material to obtain precipitates containing crystals of a solid solution with ZrO2, CeO2 and RE2O3; and separating the crystals of the solid solution from the precipitates to obtain fine particles of the solid solution.Type: GrantFiled: July 21, 2009Date of Patent: August 9, 2011Assignee: Asahi Glass Company, LimitedInventors: Yoshihisa Beppu, Kazuo Sunahara
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Publication number: 20110189559Abstract: The present invention refers to the conversion of gaseous or gasifiable fuels with high methane content, such as natural gas, biogas, synthesis gas or gas originated from various industrial process rejects, with or without prior desulfurization and elimination of other contaminants, in a solid oxide fuel cell (SOFC), with special anodes, based on mixed oxides or metal oxides with a perovskite type structure, either or not nano structured, into light hydrocarbons, primarily ethylene and ethane.Type: ApplicationFiled: June 29, 2009Publication date: August 4, 2011Applicants: OXITENO S.A. INDÚSTRIA E COMÉRCIO, INSTITUTO ALBERTO LUIZ COIMBRA DE PÓS-GRADUAÇÃO E PESQUISA DE ENGENHARIA - COPPE/UFRJInventors: Paulo Emílio Valadão De Miranda, Luís Guilherme Desá, Taísa Eva Fuziger Gutierres, Selma Aparecida Venâncio, Isabela Caldeira Leite Leocádio, Maria Auxiliadora Scaramelo Baldanza, Martin Schmal, Valéria Perfeito Vicentini
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Publication number: 20110185625Abstract: Solid mixed catalysts and methods for use in conversion of triglycerides and free fatty acids to biodiesel are described. A batch or continuous process may be used with the catalysts for transesterification of triglycerides with an alkyl alcohol to produce corresponding mono carboxylic acid esters and glycerol in high yields and purity. Similarly, alkyl and aryl carboxylic acids and free fatty acids are also converted to corresponding alkyl esters. The described catalysts are thermostable, long lasting, and highly active.Type: ApplicationFiled: August 20, 2009Publication date: August 4, 2011Applicant: SBI Fine Chemicals Inc.Inventors: Inder Pal Singh, Shradha Singh, Ritesh Patel, Bharat Mistry, Manish Mehta, Peter Omolo Otieno
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Publication number: 20110183840Abstract: An improved method for the formation of composite hydroxides or oxides comprising, on an oxide basis, Al2O3 and ZrO2, and optionally CeO2, La2O3, Nd2O3, Pr6O11, Sm2O3, Y2O3, and other rare earth oxides, comprising the steps of preparing an aqueous metal salt solution and forming a hydroxide precipitate slurry by combining the aqueous metal salt solution with an aqueous solution of a caustic alkali at a pH greater than 8.5 to precipitate out all the metal species. The variation in pH during the precipitation reaction is ±1. The invention also relates to composites formed by this method comprising 20-70 wt % Al2O3, 10-77 wt % ZrO2, 0-34 wt % CeO2 and 0-22 wt % REOs other than CeO2, and to composites per se comprising, on an oxide basis, 42-70 wt % Al2O3, 10-48 wt % ZrO2, 2-34 wt % CeO2 and 0-9 wt % REOs other than CeO2 and having the following properties after heating to 850° C. over four hours and holding at 850° C.Type: ApplicationFiled: April 6, 2011Publication date: July 28, 2011Applicant: MAGNESIUM ELEKTRON LIMITEDInventor: John G. DARAB
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Publication number: 20110183221Abstract: The present invention relates to a catalytic porous layer for oxygen activation that can be used in solid oxide fuel cells (SOFC) and dense ceramic membranes for oxygen separation at a high temperature. This porous layer is mainly composed of an electron and oxygen ion mixed conductive material and has a structure selected from simple perovskite-type structures, double perovskite-type structures or perovskite-related structures, i.e. structures such as the Ruddlesden-Popper, Dion-Jacobson and Aurivillius type.Type: ApplicationFiled: June 25, 2009Publication date: July 28, 2011Inventors: José Manuel Serra Alfaro, Vicente Bernardo Vert Belenguer, Sonia Escolástico Rozalén
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Patent number: 7985709Abstract: The invention described herein involves a novel approach to the production of oxidation/reduction catalytic systems. The present invention serves to stabilize the tin oxide reducible metal-oxide coating by co-incorporating at least another metal-oxide species, such as zirconium. In one embodiment, a third metal-oxide species is incorporated, selected from the group consisting of cerium, lanthanum, hafnium, and ruthenium. The incorporation of the additional metal oxide components serves to stabilize the active tin-oxide layer in the catalytic process during high-temperature operation in a reducing environment (e.g., automobile exhaust). Moreover, the additional metal oxides are active components due to their oxygen-retention capabilities. Together, these features provide a mechanism to extend the range of operation of the tin-oxide-based catalyst system for automotive applications, while maintaining the existing advantages.Type: GrantFiled: September 28, 2004Date of Patent: July 26, 2011Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Jeffrey D. Jordan, David R. Schryer, Patricia P. Davis, Bradley D. Leighty, Anthony N. Watkins, Jacqueline L. Schryer, Donald M. Oglesby, Suresh T. Gulati, Jerry C. Summers
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Publication number: 20110176988Abstract: The ammonia decomposition catalyst of the present invention is a catalyst for decomposing ammonia into nitrogen and hydrogen, including a catalytically active component containing at least one kind of transition metal selected from the group consisting of molybdenum, tungsten, vanadium, chromium, manganese, iron, cobalt, and nickel, preferably including: (I) a catalytically active component containing: at least one kind selected from the group consisting of molybdenum, tungsten, and vanadium; (II) a catalytically active component containing a nitride of at least one kind of transition metal selected from the group consisting of molybdenum, tungsten, vanadium, chromium, manganese, iron, cobalt, and nickel; or (III) a catalytically active component containing at least one kind of iron group metal selected from the group consisting of iron, cobalt, and nickel, and at least one metal oxide, thereby making it possible to effectively decompose ammonia into nitrogen and hydrogen at relatively low temperatures and atType: ApplicationFiled: September 17, 2009Publication date: July 21, 2011Inventors: Junji Okamura, Masaru Kirishiki, Masanori Yoshimune, Hideaki Tsuneki
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Publication number: 20110178350Abstract: The object of the present invention is to provide the catalyst used in a process for preparation of alkenylaromatic compounds by dehydrogenating alkyl aromatic compounds by means of steam as a diluent, wherein the catalyst prevents the block and corrosion caused by the alkali metal component migrated from the catalyst, and the process for producing same, and the dehydrogenation method using it. The solid catalyst which has the high redox ability and comprises no alkali metal component migrated from the catalyst in the presence of steam with high temperature is used.Type: ApplicationFiled: September 22, 2008Publication date: July 21, 2011Applicants: WASEDA UNIVERSITY, SUED-CHEMIE CATALYSTS JAPAN, INC.Inventors: Eiichi Kikuchi, Yasushi Sekine, Yuji Mishima
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Patent number: 7981274Abstract: A catalytic element useful for promoting catalytic gas phase reactions is provided, comprising a porous ceramic body comprising a multiplicity of open pores having a coating comprising a basic oxide material and a catalyst material selected from transition metal and noble metal compounds.Type: GrantFiled: July 21, 2008Date of Patent: July 19, 2011Assignee: Pall CorporationInventors: Manfred Nacken, Steffen Heidenreich
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Patent number: 7981188Abstract: A porous ceramic honeycomb filter manufactured from an oxide-based ceramic material having a pore size distribution with d1?7.0 microns. Preferably, the oxide-based material is cordierite or aluminum titanate. Alternatively, the filter contains a cordierite-containing ceramic body with a narrow pore size distribution with db?1.00, wherein db=(d90?d10)/d50. Also disclosed is a batch mixture, method and honeycomb green body made from mixture of inorganic source materials selected from the group of magnesia sources, alumina sources, and silica sources, and a pore former having a narrow particle size distribution with dps?0.90, wherein dps={(dp90?dp10)/dp50}. The pore former is preferably selected from a group consisting of canna starch, sago palm starch, green mung bean starch, and single-mode potato starch.Type: GrantFiled: May 19, 2010Date of Patent: July 19, 2011Assignee: Corning IncorporatedInventors: Weiguo Miao, Paul John Shustack, Jennifer Lynn Skolny, Jianguo Wang, Yuming Xie
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Patent number: 7981390Abstract: Catalyst articles comprising substantially only a palladium precious metal component and related methods of preparation and use are disclosed. Disclosed is a catalyst article comprising a first layer formed on a carrier substrate, wherein the first layer comprises a refractory metal oxide and has a surface that is substantially uniform; and a second layer formed on the first layer, wherein the second layer comprises i) an oxygen storage component that is about 50-90% by weight of the second layer and ii) a palladium component in an amount of about 10-150 g/ft3 of palladium, wherein the palladium component is substantially the only platinum group metal component. One or more improved properties are exhibited by the catalyst article.Type: GrantFiled: December 22, 2009Date of Patent: July 19, 2011Assignee: BASF CorporationInventors: Michael P. Galligan, Xinsheng Liu, Pascaline H. Tran, Young Gin Kim, Ye Liu
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Patent number: 7981829Abstract: An exhaust gas purifying catalyst includes: a composite oxide represented by: (Aa-w-xMwM?x) (Si6-yNy)O27-z. A is a cation of at least one of La and Pr; M is a cation of at least one of Ba, Ca, and Sr; M? is a cation of at least one of Nd, Y, Al, Pr, Ce, Sr, Li, and Ca; N is a cation of at least one of Fe, Cu, and Al. The following are satisfied: 6?a?10, 0<w<5, 0?x<5, 0<w+x?5, 0?y?3, 0?z?3, A?M?, and x?0 when A is a cation of La. A noble metal ingredient which forms a solid solution with the composite oxide or is supported on the composite oxide, and an exhaust gas purifying catalyst product formed of a carrier made of a ceramic or metallic material, and a layer of the exhaust gas purifying catalyst supported on the carrier.Type: GrantFiled: May 12, 2010Date of Patent: July 19, 2011Assignee: Mitsui Mining & Smelting Co., Ltd.Inventors: Takashi Wakabayashi, Yuunosuke Nakahara
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Publication number: 20110172086Abstract: A catalyst unit is described comprising a cylinder with a length C and a diameter D, wherein said unit has five holes arranged in a pentagonal pattern extending longitudinally therethrough, with five flutes running along the length of the unit, said flutes positioned equidistant adjacent holes of said pentagonal pattern. The catalyst may be used particularly in steam reforming reactors.Type: ApplicationFiled: August 24, 2009Publication date: July 14, 2011Applicant: JOHNSON MATTHEY PLCInventors: David James Birdsall, Mileta Babovic, Mikael Per Uno Carlsson, Samuel Arthur French, Michiel Nijemeisland, William Maurice Sengelow, Edmund Hugh Stitt
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Patent number: 7976804Abstract: A catalyst for the decomposition of N2O under the conditions of the Ostwald process, comprising a carrier and a coating made of rhodium, rhodium/palladium or rhodium oxide applied thereto, ensures to yield NO with a particularly low content of laughing gas as the first process product.Type: GrantFiled: January 9, 2009Date of Patent: July 12, 2011Assignee: W.C. Heraeus GmbHInventors: Uwe Jantsch, Jonathan Lund, Marek Gorywoda, Marcus Kraus
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Patent number: 7977276Abstract: Disclosed is an exhaust gas purifying catalyst exhibiting excellent purification performance for a long period of time by suppressing coagulation of a noble metal. A catalyst powder comprises a noble metal and first and second compounds. In the catalyst powder, the first compound carries the noble metal and is separated from another first compound carrying a noble metal by the second compound. At least one catalyst layer comprising the catalyst powder is formed on an inner surface of a substrate. The catalyst layer has fine pores. A fine pore volume of fine pores having a fine pore diameter of greater than 0.1 ?m to less than or equal to 1 ?m is 10% to 60% of the fine pore volume of fine pores having a pore diameter of 1.0 ?m or less.Type: GrantFiled: April 4, 2008Date of Patent: July 12, 2011Assignee: Nissan Motor Co., Ltd.Inventors: Hiroto Kikuchi, Katsuo Suga, Masanori Nakamura, Hironori Wakamatsu, Kazuyuki Shiratori, Toshiharu Miyamura, Jun Ikezawa
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Publication number: 20110165045Abstract: An exhaust gas purification catalyst of the present invention contains at least a precious metal coated with lanthanum-containing alumina. In at least one embodiment, it is possible to provide: an exhaust gas purification catalyst which can (i) have an increase in heat resistance, and (ii) inhibit the precious metal from being mixed in alumina and therefore inhibit the precious metal from forming a solid solution in combination with alumina; and a method for efficiently purifying, by use of the catalyst, an exhaust gas emitted from an internal-combustion engine.Type: ApplicationFiled: August 27, 2009Publication date: July 7, 2011Inventors: Masanori Ikeda, Kosuke Mikita, Takahiro Ikegami, Yuji Ogino, Hideki Goto
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Publication number: 20110154807Abstract: A NOx trap comprises components comprising at least one platinum group metal, at least one NOx storage material and bulk ceria or a bulk cerium-containing mixed oxide deposited uniformly in a first layer on a honeycombed substrate monolith, the components in the first layer having a first, upstream, zone having increased activity relative to a second, downstream zone for oxidising hydrocarbons and carbon monoxide, and a second, downstream, zone having increased activity to generate heat during a desulphation event, relative to the first zone, wherein the second zone comprises a dispersion of rare earth oxide, wherein the rare earth oxide loading in the second zone is greater than the loading in the first zone. An exhaust system for a lean burn internal combustion engine, a vehicle comprising a lean burn internal combustion engine and the exhaust system and methods of making the NOx trap are also disclosed.Type: ApplicationFiled: December 21, 2010Publication date: June 30, 2011Applicant: Johnson Matthey Public Limited CompanyInventors: Guy Richard CHANDLER, Elizabeth Hazel MOUNTSTEVENS, Paul Richard PHILLIPS, Daniel SWALLOW
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Publication number: 20110160049Abstract: An exhaust gas purifying catalyst includes: rhodium; a zirconium-containing oxide which supports rhodium, and comprises: at least one element selected from the group consisting of calcium, lanthanum, cerium, neodymium and yttrium; and zirconium; and a NOx absorbing material comprising at least one selected from the group consisting of magnesium, barium, sodium, potassium and cesium. A degree of dispersion of rhodium is 20% or more after baking at 900° C. in air for three hours. A method for manufacturing the exhaust gas purifying catalyst includes: mixing the zirconium-containing oxide with water, thereby preparing an aqueous liquid of the zirconium-containing oxide; and supporting rhodium on the zirconium-containing oxide by mixing the aqueous liquid of the zirconium-containing oxide with an aqueous solution of a rhodium salt. A pH of a mixed liquid of the aqueous solution of the rhodium salt and the aqueous liquid of the zirconium-containing oxide is adjusted to 7 or more.Type: ApplicationFiled: June 8, 2009Publication date: June 30, 2011Inventors: Tetsuro Naito, Masanori Nakamura, Hironori Wakamatsu
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Patent number: 7967887Abstract: An exhaust aftertreatment filter and method is provided for filtering engine exhaust, and reduces the maximum temperature experienced by the filter including during regeneration including during burn-off of trapped contaminant particulate including carbon oxidation combustion.Type: GrantFiled: November 3, 2006Date of Patent: June 28, 2011Assignee: Cummins Filtration IP, Inc.Inventors: Thomas M. Yonushonis, Conrad J. Simon, III, Bryan E. Blackwell, Matthew L. Anderson, Gary Salemme
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Patent number: 7968490Abstract: A porous substance producing method for producing a porous substance; by holding particles for precursors of the porous substance in micelles or inverse micelles kept in a dispersed state in a solvent with a surfactant; by agglomerating the particles of the micelles or inverse micelles to each other; and by baking the agglomerated particles. The method comprises the step of agglomerating the particles of the micelles or inverse micelles to each other by performing a treatment to resolve the dispersed state of the micelles or inverse micelles containing the particles for the precursors, with the surfactant.Type: GrantFiled: July 11, 2005Date of Patent: June 28, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shinichi Takeshima, Akio Koyama
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Patent number: 7964527Abstract: Catalytic compositions useful, e.g., for the treatment of internal combustion engine exhaust gases, are based on zirconium oxide in a weight proportion of at least 25%, from 15% to 60% of cerium oxide, from 10% to 25% of yttrium oxide, from 2% to 10% of lanthanum oxide and from 2% to 15% of another rare earth oxide, have a specific surface of at least 15 m2/g and a cubic phase, and are prepared from a mixture of zirconium, cerium, yttrium, lanthanum and the additional rare earth, by precipitating such mixture with a base, heating the precipitate in an aqueous medium, adding thereto a surfactant and calcining the precipitate.Type: GrantFiled: February 13, 2007Date of Patent: June 21, 2011Assignee: Rhodia OperationsInventors: Olivier Larcher, Stephan Verdier, Emmanuel Rohart, Aimin Huang
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Patent number: 7960307Abstract: A sulfur reduction catalyst useful to reduce the levels of sulfur in a cracked gasoline product comprises a metal vanadate compound. The metal vanadate compound can be supported on a molecular sieve such as a zeolite in which the metal vanadate compound is primarily located on the exterior surface of the pore structure of the zeolite and on the surface of any matrix material used to bind or support the zeolite.Type: GrantFiled: March 6, 2007Date of Patent: June 14, 2011Assignee: BASF CorporationInventors: Xingtao Gao, James Fu
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Publication number: 20110137029Abstract: A process for preparing an amine by reacting a primary or secondary alcohol, aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group of ammonia and primary and secondary amines, in the presence of a supported copper-, nickel- and cobalt-containing catalyst, wherein the catalytically active material of the catalyst, before the reduction thereof with hydrogen, comprises oxygen compounds of aluminum, of copper, of nickel, of cobalt and of tin, and in the range from 0.2 to 5.0% by weight of oxygen compounds of yttrium, of lanthanum, of cerium and/or of hafnium, each calculated as Y2O3, La2O3, Ce2O3 and Hf2O3 respectively, and catalysts as defined above.Type: ApplicationFiled: December 2, 2010Publication date: June 9, 2011Applicant: BASF SEInventors: PETR KUBANEK, Wolfgang Mägerlein, Johann-Peter Melder, Thomas Heidemann
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Patent number: 7956005Abstract: An object of the present invention is to provide an exhaust gas-purifying catalyst containing a composite oxide catalyst and a refractory support and being less prone to cause a decrease in its activity even when used at high temperatures in an atmosphere with high oxygen concentration. An exhaust gas-purifying catalyst includes a composite oxide catalyst containing rare-earth element, alkaline-earth element and precious metal, a part of the rare-earth element and a part of the alkaline-earth element forming composite oxide, and the composite oxide and a part of the precious metal forming solid solution, and a refractory support supporting the composite oxide catalyst and including at least one of a first composite oxide represented by a general formula AB2O4, a second composite oxide having perovskite structure represented by a general formula LMO3, and a third composite oxide having pyrochlore structure represented by a general formula X2Y2O7.Type: GrantFiled: March 28, 2008Date of Patent: June 7, 2011Assignee: Cataler CorporationInventors: Satoshi Matsueda, Mareo Kimura, Keiichi Narita
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Patent number: 7955529Abstract: This invention discloses the synthesis of a bifunctional La0.6Ca0.4Co1-xIrxO3 (x=0˜1) perovskite compound with a superb bifunctional catalytic ability for the oxygen reduction and generation in alkaline electrolytes. Synthetic routes demonstrated include solid state reaction, amorphous citrate precursor, and mechanical alloying. The interested compound demonstrates notable enhancements over commercially available La0.6Ca0.4CoO3.Type: GrantFiled: May 6, 2009Date of Patent: June 7, 2011Assignee: National Chiao Tung UniversityInventors: Pu-Wei Wu, Yun-Min Chang
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Publication number: 20110111949Abstract: Provided is an exhaust gas-purifying catalyst excelling in an exhaust gas-purifying performance. The exhaust gas-purifying catalyst contains a substrate, and a catalyst layer formed on the substrate and containing a precious metal and praseodymium.Type: ApplicationFiled: January 13, 2011Publication date: May 12, 2011Applicant: CATALER CORPORATIONInventors: Ichiro KITAMURA, Akimasa HIRAI, Kenichi TAKI
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Publication number: 20110111952Abstract: An exhaust gas purifying catalyst (1) is composed of: a noble metal (2); a first compound (3); and a second compound (4). The noble metal (2) is supported on the first compound (3). The exhaust gas purifying catalyst (1) includes units having a structure in which the first compound (3) supporting the noble metal (2) is surrounded by the second compound (4), and the first compound (3) supporting the noble metal (2) is isolated from one another by the second compound (4). The noble metal (2) is one or more selected from [Pt, Pd and Rh], the first compound (3) contains Ti as a main component, and the second compound (4) contains, as a main component, one or more selected from [Al and Si].Type: ApplicationFiled: June 4, 2009Publication date: May 12, 2011Inventors: Kazuyuki Shiratori, Masanori Nakamura, Hironori Wakamatsu, Katsuo Suga
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MODIFIED COBALT OXIDE BASED CATALYST FOR PRODUCING HYDROGEN, ITS PREPARATION METHOD AND USES THEREOF
Publication number: 20110104047Abstract: Provided herein is a modified cobalt oxide based catalyst that includes cobalt oxide and lanthanum. The lanthanum is dispersed within the cobalt oxide, wherein the lanthanum is about 5-20% by weight of the modified cobalt oxide based catalyst. The method of producing the lanthanum modified cobalt oxide based catalyst and its use in producing hydrogen are also disclosed.Type: ApplicationFiled: January 26, 2010Publication date: May 5, 2011Applicant: NATIONAL DEFENSE UNIVERSITYInventors: Chuin-Tih YEH, Chen-Bin WANG, Chia-Chan LEE -
Publication number: 20110105304Abstract: Architecture comprising ceramic or metallic foam, characterized in that the foam has a constant axial and radial porosity between 10 to 90% with a pore size between 2 to 60 ppi, and at least one continuous and/or discontinuous, axial and/or radial concentration of catalytic active(s) phase(s) from 0.01 wt % to 100 wt %, preferentially from 0.1 to 20 wt. %, and in that the architecture has a microstructure comprising specific area ranging between 0.1 to 30 m2/g, a grain size between 100 nm and 20 microns and a skeleton densification above 95%.Type: ApplicationFiled: June 15, 2009Publication date: May 5, 2011Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Ex ploitation Des Procedes Georges ClaudeInventors: Pascal Del-Gallo, Thierry Chartier, Mathieu Cornillac, Raphael Faure, Daniel Gary, Fabrice Rossignol
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Publication number: 20110105305Abstract: An architecture made of a ceramic or a metallic foam has at least one continuous and/or discontinuous, axial and/or radial porosity gradient ranging from 10 to 90% associated to a pore size range from 2 to 60 ppi, at least one continuous and/or discontinuous, axial and/or radial concentration gradient of catalytic active(s) phase(s) from 0.01 wt % to 100 wt % preferentially from 0.1 wt % to 20 wt %, and a microstructure with a specific area ranging between 0.1 to 30 m2/g, a grain size between 100 nm and 20 microns and a skeleton densification above 95%.Type: ApplicationFiled: June 16, 2009Publication date: May 5, 2011Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges ClaudeInventors: Pascal Del-Gallo, Daniel Gary, Thierry Chartier, Mathieu Cornillac, Raphael Faure, Fabrice Rossingnol
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Publication number: 20110097252Abstract: The inventive composition, according to a first embodiment, consists essentially of a cerium oxide and a zirconium oxide in an atomic ratio Ce/Zr of at least 1. According to a second embodiment, said composition is based on cerium oxide, zirconium oxide with an atomic ratio Ce/Zr of at least 1 and at least one rare earth oxide other than cerium. After calcination at 1100° C., said composition has a specific surface of at least 9 m2/g in the second embodiment. The inventive composition can be used as a catalyst especially for the treatment of waste gases from internal combustion engines.Type: ApplicationFiled: December 23, 2010Publication date: April 28, 2011Applicant: RHODIA ELECTRONICS AND CATALYSISInventors: Olivier LARCHER, Emmanuel Rohart
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Patent number: 7928035Abstract: A modified catalyst support exhibiting attrition resistance and/or deaggregation resistance is provided. A catalyst composition including the modified catalyst support is also provided. A process to produce a modified catalyst support including treatment of a support slurry with a solution of monosilicic acid is provided. A process to use a catalyst including the modified catalyst support in a Fischer-Tropsch synthesis is provided.Type: GrantFiled: June 25, 2010Date of Patent: April 19, 2011Assignee: Syntroleum CorporationInventors: Heinz J. Robota, Shelly Goodman
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Patent number: 7923408Abstract: Diesel particulate filter that can lower the particulate matter (PM) combustion start temperature and use material containing silicon (Si) for a carrier. The carrier, which has a filter function, is allowed to support a perovskite-type complex oxide expressed by formula (1) as follows, wherein 0<x<0.7 and 0?y?1: formula (1)=La1-xBaxMnyFe1-yO3.Type: GrantFiled: February 20, 2007Date of Patent: April 12, 2011Assignees: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Dowa Electronics Materials Co., Ltd.Inventors: Masashi Takahashi, Hiroshi Tanada, Takuya Yano
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Publication number: 20110082030Abstract: Precursor cations of A and B elements of an ABO3 perovskite in aqueous solution are formed as an ionic complex gel with citric acid or other suitable polybasic carboxylic acid. The aqueous gel is coated onto a desired catalyst substrate and calcined to form, in-situ, particles of the crystalline perovskite as, for example, an oxidation catalyst on the substrate. In one embodiment, a perovskite catalyst such as LaCoO3 is formed on catalyst supporting cell walls of an extruded ceramic monolith for oxidation of NO in the exhaust gas of a lean burn vehicle engine.Type: ApplicationFiled: October 1, 2009Publication date: April 7, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Chang H. Kim, Wei Li, Kevin A. Dahlberg
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Patent number: 7915196Abstract: A method of preparing a steam reforming catalyst characterized by improved resistance to attrition loss when used for cracking, reforming, water gas shift and gasification reactions on feedstock in a fluidized bed reactor, comprising: fabricating the ceramic support particle, coating a ceramic support by adding an aqueous solution of a precursor salt of a metal selected from the group consisting of Ni, Pt, Pd, Ru, Rh, Cr, Co, Mn, Mg, K, La and Fe and mixtures thereof to the ceramic support and calcining the coated ceramic in air to convert the metal salts to metal oxides.Type: GrantFiled: October 7, 2005Date of Patent: March 29, 2011Assignee: Alliance for Sustainable Energy, LLCInventors: Yves O. Parent, Kim Magrini, Steven M. Landin, Marcus A. Ritland
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Publication number: 20110071017Abstract: The present invention provides a cerium oxide-zirconium oxide-based mixed oxide having superior platinum dispersibility and a suitable OSC, and a simple production process thereof. The cerium oxide-zirconium oxide-based mixed oxide comprises cerium oxide and zirconium oxide, wherein (1) the weight ratio of CeO2:ZrO2 is 60:40 to 90:10, and (2) the cerium oxide and the zirconium oxide are present as a mixture, the zirconium oxide being composed of a solid solution in which tetragonal or cubic zirconium oxide contains cerium.Type: ApplicationFiled: September 21, 2010Publication date: March 24, 2011Applicant: DAIICHI KIGENSO KAGAKU KOGYO CO., LTD.Inventors: Hiroshi Okamoto, Masatoshi Maruki
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Publication number: 20110070139Abstract: One embodiment of the invention may include a product comprising a catalyst combination comprising a perovskite catalyst and a second catalyst that is not a perovskite catalyst.Type: ApplicationFiled: October 19, 2010Publication date: March 24, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Chang H. Kim, David B. Brown, Wei Li, Steven J. Schmieg, Gongshin Qi
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Patent number: 7909986Abstract: Reduced emissions of gas phase reduced nitrogen species in the off gas of an FCC regenerator operated in a partial or incomplete mode of combustion is achieved by contacting the off gas with an oxidative catalyst/additive composition having the ability to reduce gas phase nitrogen species to molecular nitrogen and to oxidize CO under catalytic cracking conditions. The oxidative catalyst/additive composition is used in an amount less than the amount necessary to prevent afterburn. Fluidizable particles of the oxidative catalyst/additives are circulated throughout the partial or incomplete burn FCC unit along with the FCC catalyst inventory. The flue gas having a reduced content of gas phase reduced nitrogen species and NOx is passed to a downstream CO boiler, preferably a low NOx CO boiler. In the CO boiler, as CO is oxidized to CO2, a reduced amount of gas phase reduced nitrogen species is oxidized to NOx, thereby providing an increase in the overall reduction of NOx emitted into the environment.Type: GrantFiled: May 6, 2009Date of Patent: March 22, 2011Assignee: W. R. Grace & Co.-Conn.Inventors: George Yaluris, John Allen Rudesill
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Patent number: 7910514Abstract: An inorganic fiber catalyst includes an alumina-silica fiber base material, and a plurality of catalyst component particles contained in the alumina-silica fiber base material. A mean particle diameter of the catalyst component particles contained in at least a surface portion of the alumina-silica fiber base material is 50 nm or less, and a standard deviation of particle diameters of the catalyst component particles is 30 or less.Type: GrantFiled: July 10, 2008Date of Patent: March 22, 2011Assignees: Nissan Motor Co., Ltd., Nitivy Co., Ltd.Inventors: Hideaki Morisaka, Masahiro Takaya, Yasunari Hanaki, Kouji Masuda, Michiaki Sagesaka, Naoki Harakawa
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Patent number: 7909904Abstract: A method for producing a ceramic honeycomb structure comprises providing a honeycomb body having a side surface, a first cut end surface, a second cut end surface opposite the first end surface, and a maximum width (W), and removing material from at least one of the cut end surfaces of the honeycomb body to reduce the length (L), wherein the step of removing material comprises abrasively removing material from at least one of the ends with a rotating abrasive tool, such as by grinding, and wherein L/W is greater than 0.75. The method may achieve end flatness, parallelism, surface roughness and length accuracy, or combinations thereof which heretofore, were unachievable. Face finished ceramic honeycomb structures having low surface roughness (Ra), high degree of parallelism and accurate lengths are also disclosed.Type: GrantFiled: March 19, 2007Date of Patent: March 22, 2011Assignee: Corning IncorporatedInventor: Bruce Patrick Allen
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Patent number: 7906015Abstract: Reduced emissions of gas phase reduced nitrogen species in the off gas of an FCC regenerator operated in a partial or incomplete mode of combustion is achieved by contacting the off gas with an oxidative catalyst/additive composition having the ability to reduce gas phase nitrogen species to molecular nitrogen and to oxidize CO under catalytic cracking conditions. The oxidative catalyst/additive composition is used in an amount less than the amount necessary to prevent afterburn. Fluidizable particles of the oxidative catalyst/additives are circulated throughout the partial or incomplete burn FCC unit along with the FCC catalyst inventory. The flue gas having a reduced content of gas phase reduced nitrogen species and NOx is passed to a downstream CO boiler, preferably a low NOx CO boiler. In the CO boiler, as CO is oxidized to CO2, a reduced amount of gas phase reduced nitrogen species is oxidized to NOx, thereby providing an increase in the overall reduction of NOx emitted into the environment.Type: GrantFiled: September 29, 2005Date of Patent: March 15, 2011Assignee: W.R. Grace & Co.-Conn.Inventors: George Yaluris, John Allen Rudesill
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Publication number: 20110053763Abstract: Catalyst compositions include finely divided nanoscale particles of at least one supported oxide selected from among zirconium oxide, titanium oxide or a mixed zirconium/titanium oxide deposited onto an alumina-based or aluminum-oxyhydroxide-based support, wherein, after calcination for 4 hours at 900° C., the at least one support oxide is in the form of nanoscale particles deposited onto the support, the size of said particles being at most 10 nm when the at least one supported oxide is based is zirconium oxide and being at most 15 nm when the at least one supported oxide is titanium oxide or a mixed zirconium/titanium oxide; such catalyst compositions are especially useful for the selective reduction of NOx.Type: ApplicationFiled: February 23, 2009Publication date: March 3, 2011Applicant: RHODIA OPERATIONSInventors: Stephan Verdier, Guillaume Criniere, Simon Ifrah, Rui Jorge Coelho Marques
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Publication number: 20110045968Abstract: A catalyst layer includes: a first mixed oxide particle component 4 which contains Ce and Rh 8 and in which Rh is partially exposed at particle surfaces; and a second mixed oxide particle component 5 containing Ce, Zr, and a rare earth metal except Ce. The particle size distribution of the first mixed oxide particle component 4 has a peak in the particle size range from 100 nm to 300 nm, both inclusive. The particle size distribution of the second mixed oxide particle component 5 has a peak in a particle size range larger than the particle size range in which the first mixed oxide particle component 4 has the peak. At least part of particles of the first mixed oxide particle component 4 is attached to at least part of particles of the second mixed oxide particle component 5.Type: ApplicationFiled: July 29, 2010Publication date: February 24, 2011Applicant: MAZDA MOTOR CORPORATIONInventors: Masaaki AKAMINE, Hideharu IWAKUNI, Hisaya KAWABATA, Yasuhiro OCHI, Yuki MURAKAMI, Susumu MINEOI, Akihide TAKAMI, Masahiko SHIGETSU
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Publication number: 20110044874Abstract: An oxidation catalyst deposited on a substrate is described for the destruction of CO and volatile organic compounds, in particular halogenated organic compounds, from an emissions stream at temperatures from 250° C. to 450° C. The oxidation catalyst includes at least two platinum group metals, one of which is either platinum or ruthenium, supported on refractory oxides, such as a solid solution of CeO2 and ZrO2, and tin oxide and/or silica.Type: ApplicationFiled: August 21, 2009Publication date: February 24, 2011Applicant: SUD-CHEMIE INC.Inventors: Zhongyuan Dang, Nirmal Singh, Martin Morrill, Greg Cullen
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Publication number: 20110039691Abstract: An object of the present invention is to provide a catalyst support which can maintain the purifying ability of HC, CO and NO even after being exposed to a high temperature atmosphere such as about 1000° C. for a long term and a method which can easily produce the catalyst support. According to the present invention there is provided a method for producing a catalyst support of porous alumina formed with pores within which magneto-plumbite type complex oxide ((La.Type: ApplicationFiled: August 20, 2010Publication date: February 17, 2011Applicant: KABUSHIKI KAISHA F.C.C.Inventors: Akihiko Tomoda, Ryou Suzuki, Shintaro Yagi
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Publication number: 20110034331Abstract: An exhaust gas purifying catalyst including: a plurality of first compounds 5 which have precious metal particles 3 supported thereon and are formed into a particle shape; and second compounds 7 which are arranged among the plurality of first compounds 5 and separate the first compounds 5 from one another, wherein pore volumes of the precious metal particles 3, the first compounds 5 and the second compounds 7 are 0.24 to 0.8 cm3/g.Type: ApplicationFiled: October 13, 2010Publication date: February 10, 2011Inventors: Hiroto KIKUCHI, Masanori Nakamura, Hironori Wakamatsu, Hideaki Morisaka, Hirofumi Yasuda, Katsuo Suga, Kazuyuki Shiratori, Kenji Uesugi, Toshiharu Miyamura
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Patent number: 7884046Abstract: A process for hydrogenating an organic compound which has at least one carbonyl group, in which the organic compound is hydrogenated in the presence of a shaped article which contains (i) an oxidic material comprising copper oxide, aluminum oxide and lanthanum oxide, and (ii) powdered metallic copper, copper flakes, powdered cement, graphite or a mixture thereof, is provided.Type: GrantFiled: October 29, 2009Date of Patent: February 8, 2011Assignee: BASF SEInventors: Sylvia Huber-Dirr, Michael Hesse, Andrea Haunert, Henrik Junicke