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公开(公告)号:US20190143272A1
公开(公告)日:2019-05-16
申请号:US16308730
申请日:2017-06-07
Applicant: BASF Corporation
Inventor: Natalia TRUKHAN , Michaela MALTRY , Ulrich MUELLER , Stefan MARX , Karifala DUMBUYA , Mathias FEYEN
IPC: B01D53/94 , B01J37/02 , B01J37/08 , B01J35/10 , B01J31/16 , B01J29/76 , B01J35/04 , B01J37/10 , B01J37/00 , C01B39/48 , B01D53/86 , F01N3/20 , F01N3/28
Abstract: The present invention relates to a process for the preparation of a catalyst for selective catalytic reduction comprising• (i) preparing a mixture comprising a metal-organic framework material comprising an ion of a metal or metalloid selected from groups 2-5, groups 7-9, and groups 11-14 of the Periodic Table of the Elements, and at least one at least monodentate organic compound, a zeolitic material containing a metal as a non-framework element, optionally a solvent system, and optionally a pasting agent,• (ii) calcining of the mixture obtained in (i); and further relates to a catalyst per se comprising a composite material containing an amorphous mesoporous metal and/or metalloid oxide and a zeolitic material, wherein the zeolitic material contains a metal as non-framework element, as well as to the use of said catalyst.
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公开(公告)号:US20210339228A1
公开(公告)日:2021-11-04
申请号:US17250794
申请日:2019-09-12
Applicant: BASF Corporation
Inventor: Karifala DUMBUYA , Thomas SCHMITZ , Florian WALTZ , Stephan SIEMUND
IPC: B01J23/656 , F01N3/10 , B01J21/04 , B01J37/02 , F01N3/035
Abstract: The disclosure relates to a three-way conversion catalyst for the treatment of an exhaust gas comprising nitrogen monoxide, carbon monoxide, and hydrocarbon, wherein the catalyst comprises: (i) a substrate; (ii) a first coating comprising rhodium supported on a first oxidic component; (iii) a second coating comprising palladium supported on a non-zeolitic oxidic material, wherein the non-zeolitic oxidic material comprises manganese and a second oxidic component, wherein the second coating consists of 0 weight-% to 0.001 weight-% of platinum; wherein the first coating is disposed on the substrate over x % of the axial length, with x ranging from 80 to 100; wherein the second coating extends over y % of the axial length from the inlet end to the outlet end and is disposed on the first coating, with y ranging from 20 to x.
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公开(公告)号:US20220212170A1
公开(公告)日:2022-07-07
申请号:US17595321
申请日:2020-06-23
Applicant: BASF Corporation
Inventor: Shiang SUNG , Xiaolai ZHENG , Aleksei VJUNOV , Chunxin JI , Karifala DUMBUYA
IPC: B01J23/46 , B01J35/00 , B01J37/08 , B01J37/03 , B01J23/10 , B01J37/04 , B01J35/04 , B01D53/94 , F01N3/10 , F01N3/28
Abstract: The presently claimed invention provides a catalytic article and an exhaust gas treatment system. The catalytic article comprises platinum supported on a first support comprising ceria containing metal oxide component; rhodium supported on a second support selected from a refractory alumina component, an oxygen storage component or a combination thereof; and a substrate, wherein said catalytic article is essentially free of palladium. The presently claimed invention also provides a process for preparing the catalytic article and use of the catalytic article and the exhaust gas treatment system for purifying a gaseous exhaust stream comprising hydrocarbons, carbon monoxide, and nitrogen oxide.
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4.
公开(公告)号:US20190383184A1
公开(公告)日:2019-12-19
申请号:US16484874
申请日:2018-03-13
Applicant: BASF Corporation
Inventor: Karifala DUMBUYA , Claudia ZABEL , Shiang SUNG
Abstract: A diesel oxidation catalyst, comprising a washcoat comprising four layers, the washcoat being disposed on a substrate, wherein the washcoat comprises a first layer comprising a first platinum group metal supported on a first metal oxide support material, which first layer is disposed on the substrate; a second layer comprising a second platinum group metal supported on a second metal oxide support material, and comprising a fifth platinum group metal, which second layer is disposed on the first layer; a third layer comprising a third platinum group metal supported on a third metal oxide support material and comprising a zeolitic material comprising Fe and comprising a sixth platinum group metal; and a fourth layer comprising a fourth platinum group metal and a fourth metal oxide; wherein the substrate has a length, a front end and a rear end; wherein the first layer is disposed on the substrate on the entire length of the substrate, wherein the second layer is disposed on the first layer on the entire length of the substrate; wherein the third layer is at least partially disposed on the second layer on x % of the length of the substrate from the front end of the substrate; wherein the fourth layer is at least partially disposed on the second layer on y % of the length of the substrate from the rear end of the substrate; wherein x is in the range of from 30 to 70, y is in the range of from 30 to 70 and x+y is in the range of from 95 to 115.
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公开(公告)号:US20230191372A1
公开(公告)日:2023-06-22
申请号:US18000306
申请日:2021-06-30
Applicant: BASF CORPORATION
Inventor: Karifala DUMBUYA , Thomas SCHMITZ , Chunxin JI , Florian WALTZ , Stephan SIEMUND , Holger SCHWEKENDIEK
IPC: B01J23/889 , B01J37/02 , B01D53/94 , B01J6/00 , B01J37/03 , B01J35/02 , B01J35/10 , F01N3/022 , F01N3/10
CPC classification number: B01J23/8892 , B01J37/0201 , B01J37/0215 , B01D53/945 , B01J37/0236 , B01J6/001 , B01J37/038 , B01J35/023 , B01J35/1019 , F01N3/0222 , F01N3/101 , B01J35/1014
Abstract: Disclosed herein is a catalyst for particulate combustion which is essentially free of platinum group metal compounds and the catalyst comprises a carrier and at least one metal oxide chosen from iron oxide and manganese oxide, and combinations thereof.
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6.
公开(公告)号:US20210172361A1
公开(公告)日:2021-06-10
申请号:US17045332
申请日:2019-04-23
Applicant: BASF CORPORATION
Inventor: Marcus HILGENDORFF , Karifala DUMBUYA , Matthias PETER , Andreas SUNDERMANN
Abstract: The present invention relates to a selective catalytic reduction catalyst for the treatment of an exhaust gas of a diesel engine comprising: a flow-through substrate comprising an inlet end, an outlet end, a substrate axial length extending from the inlet end to the outlet end and a plurality of passages defined by internal walls of the flow through substrate extending therethrough; a coating disposed on the surface of the internal walls of the substrate, wherein the coating comprises a non-zeolitic oxidic material comprising manganese and one or more of the metals of the groups 4 to 11 and 13 of the periodic table, and further comprises one or more of a vanadium oxide and a zeolitic material comprising one or more of copper and iron.
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公开(公告)号:US20240424445A1
公开(公告)日:2024-12-26
申请号:US18692603
申请日:2022-09-08
Applicant: BASF CORPORATION
Inventor: Xiaolai ZHENG , Stephen JOHNSON , Yipeng SUN , Yuejin LI , Shiang SUNG , Chunxin JI , Pascaline TRAN , Pramod RAVINDRAN , Karifala DUMBUYA
IPC: B01D53/94 , B01J21/04 , B01J23/10 , B01J23/63 , B01J35/00 , B01J37/02 , B01J37/08 , F01N3/10 , F01N3/28
Abstract: The present invention provides a catalytic article comprising a substrate: a bottom washcoat deposited on the substrate; and a top washcoat deposited on the bottom coat, wherein the bottom washcoat comprises a zoned configuration, wherein the zoned configuration comprises a first zone and a second zone, wherein the first zone comprises palladium supported on ceria-zirconia mixed oxide or alumina or both, wherein the second zone comprises platinum supported on a ceria-alumina composite, wherein the top washcoat comprises rhodium supported on an alumina or a ceria-alumina composite. The present invention also provides a process for the preparation of the catalytic article, and it use for purifying a gaseous exhaust stream.
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公开(公告)号:US20220032277A1
公开(公告)日:2022-02-03
申请号:US17309015
申请日:2019-10-30
Applicant: BASF Corporation
Inventor: Matthias PETER , Karifala DUMBUYA , Miriam SCHUBERT , Ahmad MOINI , Yu DAI , Stefan MAURER , Haiyang ZHU , Yi LIU , Wen-Mei XUE , Ming-Ming WEI , Maria HEENEMANN
Abstract: A process for preparing a catalyst comprising a zeolitic material comprising copper, the process comprising (i) preparing an aqueous mixture comprising water, a zeolitic material comprising copper, a source of copper other than the zeolitic material comprising copper, and a non-zeolitic oxidic material selected from the group consisting of alumina, silica, titania, zirconia, ceria, a mixed oxide comprising one or more of Al, Si, Ti, Zr, and Ce and a mixture of two or more thereof; (ii) disposing the mixture obtained in (i) on the surface of the internal walls of a substrate comprising an inlet end, an outlet end, a substrate axial length extending from the inlet end to the outlet end and a plurality of passages defined by internal walls of the substrate extending therethrough; and optionally drying the substrate comprising the mixture disposed thereon; (iii) calcining the substrate obtained in (ii).
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公开(公告)号:US20210379530A1
公开(公告)日:2021-12-09
申请号:US17309016
申请日:2019-10-30
Applicant: BASF CORPORATION
Inventor: Matthias PETER , Susanne STIEBELS , Karifala DUMBUYA , Claudia ZABEL
IPC: B01D53/94 , F01N3/10 , F01N3/20 , F01N3/021 , F01N3/28 , B01J29/76 , B01J21/06 , B01J37/04 , B01J37/08 , B01J35/10 , B01J35/02 , B01J37/02 , B01J21/12 , B01J35/00 , B01J35/04 , B01J21/18
Abstract: A selective catalytic reduction catalyst for the treatment of an exhaust gas stream of a passive ignition engine, the catalyst comprising a porous wall-flow filter substrate comprising an inlet end, an outlet end, a substrate axial length (w) extending between the inlet end and the outlet end, and a plurality of passages defined by porous internal walls of the porous wall flow filter substrate; wherein the catalyst further comprises a first coating, said first coating extending over x % of the substrate axial length from the inlet end toward the outlet end of the substrate, x being in the range of from 10 to 100, wherein the first coating comprises copper and an 8-membered ring pore zeolitic material; wherein the catalyst further comprises a second coating, the second coating extending over y % of the substrate axial length from the outlet end toward the inlet end of the substrate, y being in the range of from 20 to 90, wherein the second coating comprises copper, and optionally an 8-membered ring pore zeolitic material; wherein the catalyst optionally further comprises a third coating; wherein x+y is at least 90; wherein y % of w from the outlet end toward the inlet end of the substrate define the outlet zone of the coated substrate and (100−y) % of w from the inlet end toward the outlet end of the substrate define the inlet zone of the coated substrate; wherein the ratio of the loading of copper in the inlet zone, Cu(in), calculated as CuO, relative to the loading of copper in the outlet zone, Cu(out), calculated as CuO, Cu(in):Cu(out), is less than 1:1.
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