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公开(公告)号:US11613473B2
公开(公告)日:2023-03-28
申请号:US15770065
申请日:2016-10-27
IPC分类号: B01J37/03 , C01G25/02 , B01J21/06 , B01J37/04 , B01J35/10 , B01J37/08 , B01J37/06 , C01F17/32 , B01J23/10 , B01D53/94 , B01J37/10 , C01G25/00 , B01J13/00 , B01J35/00 , B01J35/02 , B01J23/20 , B01J23/28 , B01J23/30
摘要: A cerium-zirconium based mixed oxide composition have: (a) a Ce:Zr molar ratio of 1 or less, and (b) a cerium oxide content of 10-50% by weight. The composition has (i) a surface area of at least 18 m2/g, and a total pore volume as measured by N2 physisorption of at least 0.11 cm3/g, after ageing at 1100° C. in an air atmosphere for 6 hours, (ii) a surface area of at least 42 m2/g, and a total pore volume as measured by N2 physisorption of at least 0.31 cm3/g, after ageing at 1000° C. in an air atmosphere for 4 hours, and (iii) Dynamic Oxygen Storage Capacity (D-OSC) value as measured by H2-TIR of greater than 500 μmol/g at 600° C. after aging at 800° C. in an air atmosphere for 2 hours. A process contacts the exhaust gas with the composition Another process is for preparing the composition.
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公开(公告)号:US20230091978A1
公开(公告)日:2023-03-23
申请号:US17735813
申请日:2022-05-03
发明人: Ray Chrisman , Donald Bunning , Mark Nunley , Brooke Albin , Michael Bradford , Louis Kapicak , David James Schreck
IPC分类号: C07C29/132 , B01J23/30 , B01J19/00 , B01J19/24 , C07C29/17
摘要: By this invention processes are provided for the conversion of carbohydrate to ethylene glycol by retro-aldol catalysis and sequential hydrogenation using control methods having at least one of acetol (hydroxyacetone) and a tracer as inputs.
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公开(公告)号:US20230032459A1
公开(公告)日:2023-02-02
申请号:US17786983
申请日:2020-12-17
申请人: TOPSOE A/S
IPC分类号: B01J38/66 , B01J23/28 , B01J23/30 , B01J23/75 , B01J23/755 , B01J23/84 , B01J23/92 , B01J23/94 , B01J37/02 , B01J37/08 , B01J37/00
摘要: A method for activating an oxidic fresh hydroprocessing catalyst or the catalytically active material of a spent hydroprocessing catalyst comprising a refractory oxide support and one or more base metals selected from Ni, Co, Mo and W comprises optionally regenerating the catalyst, adjusting an aqueous activating solution, which contains an organic acid, to pH > 3 with an alkaline additive, impregnating the catalytically active material with the pH-adjusted aqueous activating solution, and heat-treating the catalyst at a temperature of 120-450° C.
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公开(公告)号:US11517854B2
公开(公告)日:2022-12-06
申请号:US16479669
申请日:2018-02-13
申请人: BASF Corporation
发明人: Robert Dorner , Martin Kalwei
IPC分类号: B01D53/94 , B01J21/06 , B01J21/12 , B01J23/30 , B01J23/42 , B01J35/00 , B01J37/02 , B01J37/08 , F01N3/10
摘要: The present invention relates to a diesel oxidation catalyst comprising a substrate and a wash-coat comprising a first layer and a second layer, wherein the substrate has a substrate length, a front end and a rear end, the washcoat comprising the first layer comprising a first metal oxide and comprising a platinum group metal supported on a metal oxide support material; the second layer comprising a second metal oxide and comprising one or more of an oxidic compound of vanadium, an oxidic compound of tungsten and a zeolitic material comprising one or more of Fe and Cu; wherein the first layer is at least partially disposed directly on the substrate, or is at least partially disposed directly on an intermediate layer which is disposed directly on the substrate over the entire length of the substrate, on x % of the length of the substrate from the front end of the substrate, and wherein the second layer is at least partially disposed directly on the substrate, or is at least partially disposed directly on the intermediate layer which is disposed directly on the substrate over the entire length of the substrate, on y % of the length of the substrate from the rear end of the substrate, wherein x is in the range of from 25 to 75 and y is in the range of from 25 to 75 and wherein x+y is in the range of from 95 to 105, wherein the intermediate layer comprises alumina.
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公开(公告)号:US11498055B2
公开(公告)日:2022-11-15
申请号:US17405231
申请日:2021-08-18
申请人: Umicore AG & Co. KG
发明人: Elodie Quinet , Stephan Malmberg , Nicola Soeger
摘要: The present invention relates to a catalyst comprising at least one oxide of vanadium, at least one oxide of tungsten, at least one oxide of cerium, at least one oxide of titanium and at least one oxide of antimony, and an exhaust system containing said oxides.
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公开(公告)号:US11485717B2
公开(公告)日:2022-11-01
申请号:US17274123
申请日:2019-08-19
申请人: ENEOS CORPORATION
发明人: Shohei Takata , Kenta Ue , Takeshi Koike , Atsushi Kameyama
IPC分类号: C07D301/12 , B01J23/30 , B01J27/055 , B01J31/02 , C07D407/04 , C07D493/04
摘要: The invention provides a method for producing an epoxy compound by hydrogen peroxide using an organic compound having a carbon-carbon double bond as a raw material, wherein a by-product is suppressed from being generated and the epoxy compound is produced in a high yield. In particular, the invention provides a method for producing an epoxy compound involving oxidizing a carbon-carbon double bond in an organic compound with hydrogen peroxide in the presence of a catalyst, wherein the catalyst comprises a tungsten compound; a phosphoric acid, a phosphonic acid or salts thereof; and an onium salt having an alkyl sulfate ion represented by formula (I) as an anion: wherein R1 is a linear or branched aliphatic hydrocarbon group having 1 to 18 carbons, which may be substituted with 1 to 3 phenyl groups.
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公开(公告)号:US20220339615A1
公开(公告)日:2022-10-27
申请号:US17655181
申请日:2022-03-17
发明人: Lok Hang KEUNG , Juanfang CAI , King Ho SO , Ka Kit YEE , Ka Chun LEE , Lok-Shun LAI
IPC分类号: B01J35/00 , B01J37/04 , B01J37/03 , B01J37/08 , B01J23/30 , B01J23/72 , B01J35/02 , A61L2/08
摘要: The present invention provides a metal/metal oxide doped-WO3 flower-like assemblies as a photocatalyst applied to photocatalytic inactivation of influenza virus and bacteria under UV or visible light activation, and further provides a surface-modulator-driven synthesis method for producing WO3 flower-like assemblies, as well as doping methods for doping the metal/metal oxide to the WO3 flower-like assemblies. The metal/metal oxide doped in WO3 flower-like assemblies can further enhance the antiviral and antibacterial performances.
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公开(公告)号:US20220331782A1
公开(公告)日:2022-10-20
申请号:US17753553
申请日:2020-09-15
申请人: BASF CORPORATION
发明人: Liang CHEN , Feng ZHAO , Jia Di ZHANG
摘要: The present invention relates to a catalyst composition comprising a support, catalytically active species comprising a vanadium species, an antimony species and a tungsten species, and optionally, at least one further species selected from the group consisting of silicon species, aluminum species, zirconium species, titanium species, and cerium species; a catalytic article comprising the same, a method for preparing the catalytic article, and use of the catalyst composition or the catalytic article for selective catalytic reduction of nitrogen oxides in exhaust gases.
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9.
公开(公告)号:US11446635B2
公开(公告)日:2022-09-20
申请号:US16763653
申请日:2018-12-27
IPC分类号: B01J23/30 , B01J23/06 , B01J23/20 , B01J23/22 , B01J35/10 , B01J37/03 , B01J37/08 , C07C1/20 , B01J21/06
摘要: The present invention relates to a catalyst which is a composite oxide including at least one element X selected from the group consisting of elements belonging to Groups 3 to 6 of the periodic table, and at least one element Z selected from the group consisting of elements belonging to Group 14 of the periodic table, wherein the catalyst has mesopores.
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10.
公开(公告)号:US11439997B2
公开(公告)日:2022-09-13
申请号:US16332967
申请日:2017-09-28
申请人: TSINGHUA UNIVERSITY
发明人: Junhua Li , Xiansheng Li , Xiang Li , Yue Peng , Jianjun Chen
摘要: The invention belongs to the field of nitrogen oxide control in environmental protection science and technology, and particularly relates to the field of regeneration and utilization of SCR denitration catalyst with calcium poisoning, that is a neutral complex cleaning liquid and a regeneration method for denitration catalyst with calcium poisoning. The present invention uses a neutral polyether surfactant as a regeneration and calcium removal reagent to achieve a poisoned catalyst regeneration method with high calcium removal rate, low loss rate of active components and excellent recovery of denitrification activity; wherein the content of the polyether surfactant is in the range of 0.1-1 wt %; by the regeneration method of the present invention, the loading of active components which is required in the conventional regeneration process can be omitted, while the corrosion of equipment and catalyst can be reduced, thus capable of regenerating the denitration catalyst with high efficiency.
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