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公开(公告)号:US20220176354A1
公开(公告)日:2022-06-09
申请号:US17437972
申请日:2020-03-10
申请人: Cataler Corporation
发明人: Takahiro Noguchi , Ryota Onoe , Ryo Tasaki , Momoko Iwai , Yamato Matsushita
摘要: An exhaust gas purification catalyst provides excellent removal performance of methane, which is chemically stable. Exhaust gas purification catalyst includes a substrate that divides cells through which an exhaust gas flows and a catalyst layer that is provided on a surface of the substrate. The catalyst layer includes a palladium layer containing palladium that extends from a first end part which is an end part on the side into which an exhaust gas in the cells flows to a second end part which is an end part on the side from which an exhaust gas flows out, a platinum layer containing platinum that extends from the second end part to the first end part, and a rhodium layer containing rhodium that is laminated with both the palladium layer and the platinum layer.
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公开(公告)号:US20220176351A1
公开(公告)日:2022-06-09
申请号:US17441318
申请日:2020-03-27
申请人: Cataler Corporation , National University Corporation Tokai National Higher Education and Research System
发明人: Naoto Fujita , Mai Huong Tran , Keiichi Narita , Norihiko Aono , Atsushi Satsuma
摘要: The present invention provides an exhaust gas purification catalyst having an excellent purification performance for purifying chemically stable methane. A catalyst material 30 includes a carrier 32 formed of alumina and a catalyst 34 formed of at least one of palladium and a palladium oxide directly supported on the carrier 32. A specific surface area of the carrier 32 is preferably 20 m2/g or more 90 m2/g or less. In one preferred aspect, a proportion of Pd(100) and PdO(101) in crystal planes of the catalyst 34 at a joint surface between the catalyst 34 and the carrier 32 is 20 number % or more.
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公开(公告)号:US20220161250A1
公开(公告)日:2022-05-26
申请号:US17594037
申请日:2020-03-30
IPC分类号: B01J37/08 , B01J23/10 , B01J23/44 , B01J23/745 , B01J23/755 , B01J23/83 , B01J21/10 , B01J37/02
摘要: A co-deflagration process for the preparation of metallic, ceramic, or mixed ceramic-metallic particles optionally impregnated within or attached to a metallic, ceramic, or mixed ceramic-metallic support material includes mixing at least two components. Each of the components can be any of a nitrogen-rich ligand or a salt thereof, a complex or coordination polymer of the nitrogen-rich ligand or salt thereof with one of the at least one metal, and a cluster of the at least one metal, and optionally an organic or inorganic oxidant, gas generator, pyrotechnic, propellant, and/or explosive.
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公开(公告)号:US11338271B2
公开(公告)日:2022-05-24
申请号:US16965121
申请日:2019-01-24
发明人: Katsuya Tanba , Yoshiharu Okuda , Teiko Kuroda
摘要: A porous carbon material including a porous carbon material having a specific resistance value of 30 Ωcm or less at a packing density of 0.3 g/cc, wherein a mesopore volume (cm3/g) of the porous carbon material as measured by the BJH method is 0.5 cm3/g or greater.
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公开(公告)号:US20220152590A1
公开(公告)日:2022-05-19
申请号:US17665998
申请日:2022-02-07
申请人: Her Majesty the Queen in Right of Canada as Represented by the Minister of Natural Resources Canada
IPC分类号: B01J23/44 , B01D53/94 , B01J23/63 , B01J21/04 , B01J37/02 , B01D53/72 , B01J23/10 , B01J35/10
摘要: Provided herein is a methane oxidation catalyst having a support comprising alumina doped with lanthanum and comprising platinum and palladium as active phases. The platinum and palladium are present in the catalyst at an amount effective for producing an exhaust stream from a natural gas vehicle having reduced levels of methane. The catalyst disclosed herein may exhibit improvements in sulfur and water resistance.
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公开(公告)号:US11331651B2
公开(公告)日:2022-05-17
申请号:US16123211
申请日:2018-09-06
申请人: UMICORE AG & CO. KG
发明人: Ryan J. Andersen , John G. Nunan , Curt M. Ellis , Geon Seog Son
IPC分类号: B01J23/42 , B01J21/04 , B01J21/06 , B01J21/08 , B01J21/10 , B01J23/44 , B01J23/46 , F01N3/035 , F01N3/10
摘要: The present invention relates to a catalyst comprising a carrier substrate of the length L extending between substrate ends a and b and three washcoat zones A, B and C wherein washcoat zone A comprises one or more first platinum group metals and extends starting from substrate end a over a part of the length L,
washcoat zone C comprises one or more first platinum group metals and extends starting from substrate end b over a part of the length L, and washcoat zone B comprises the same components as washcoat zone A and in addition, one or more second platinum group metals and extends between washcoat zones A and C, wherein L=LA+LB+LC, wherein LA is the length of washcoat zone A, LB is the length of substrate length B and LC is the length of substrate length C.-
公开(公告)号:US20220136417A1
公开(公告)日:2022-05-05
申请号:US17451352
申请日:2021-10-19
发明人: Paul Millington , Maria C. Vlachou
摘要: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end and an outlet end with an axial length L; a first catalytic region comprising a first platinum group metal (PGM) component supported on a first PGM support material, wherein the first PGM component comprises rhodium (Rh) and platinum (Pt); and wherein Pt and Rh has a weight ratio of at least 1:10.
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公开(公告)号:US11318448B2
公开(公告)日:2022-05-03
申请号:US16960953
申请日:2019-01-25
IPC分类号: B01J23/74 , B01J23/883 , B01J21/04 , B01J35/10 , B01J37/02 , B01J23/46 , B01J23/64 , B01J23/86 , B01J23/42 , B01J23/44 , B01J23/84 , B01J23/755 , B01J23/888 , B01J23/88 , B01J23/85 , B01J23/882 , B01J23/75 , B01J23/652 , B01J35/00 , B01J37/08 , B01J37/00
摘要: A catalyst comprising a carrier and a metals component impregnated in the carrier, the carrier comprising alumina; and the metals component comprising a first metals fraction and a second metals fraction, the first metals fraction comprising at least one metal selected from chromium, molybdenum, or tungsten, and the second metals fraction comprising at least two metals selected from cobalt, rhodium, iridium, nickel, palladium, or platinum, wherein the catalyst has a first pore volume of 0.28 to 0.45 mL/g for pores having a pore diameter of 12 nm to less than 16 nm, and a second pore volume of 0.15 to 0.28 mL/g for pores of 2.0 nm to less than 12.0 nm.
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公开(公告)号:US20220118432A1
公开(公告)日:2022-04-21
申请号:US17432455
申请日:2020-07-13
发明人: Myungji Suh , Dong Hyun Ko , Minkee Choi , Kyunglim Hyun
摘要: A catalyst for a hydrogenation reaction including: a polymer support; and a catalytic component supported on the polymer support. The polymer support includes a repeating unit represented by Formula 1 or 2.
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公开(公告)号:US20220111365A1
公开(公告)日:2022-04-14
申请号:US17556102
申请日:2021-12-20
发明人: Guido William ARU
IPC分类号: B01J23/89 , C01B32/50 , B01J8/18 , B01J8/26 , B01J21/04 , B01J21/08 , B01J21/12 , B01J23/42 , B01J23/44 , B01J23/63 , B01J35/00 , B01J35/08 , B01J35/10 , B01J37/02 , B01J37/08 , C10G11/04
摘要: The invention is directed to a CO to CO2 combustion promoter comprising microsphere sized porous silica and/or alumina comprising particles further comprising on or more Group VIII noble metals wherein the noble metal is distributed in the particle as an eggshell such that a higher content of noble metal is present in the outer region of the particle as compared to the content of noble metal in the center of the particle.
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