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公开(公告)号：US20230249164A1
公开(公告)日：2023-08-10
申请号：US18010222
申请日：2021-06-24
Applicant: BASF CORPORATION
Inventor： Wen-Mei Xue
CPC classification number: B01J29/763 , B01D53/9418 , B01J35/04 , B01J37/04 , B01J35/026
Abstract: The present disclosure provides a selective catalytic reduction (SCR) catalyst composition prepared from a first un-promoted zeolite having a first silica-to-alumina ratio (SAR) from about 5 to about 100, a promoter precursor, and a second un-promoted zeolite having a second silica-to-alumina ratio (SAR) from about 5 to about 100. The present disclosure further provides a method of forming the SCR catalyst composition, a catalytic article comprising the SCR catalyst composition, an engine exhaust gas treatment system comprising the SCR catalyst composition, and a method of removing nitrogen oxides from exhaust gas from a lean burn engine using the SCR catalyst composition.
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公开(公告)号：US11448110B2
公开(公告)日：2022-09-20
申请号：US16323145
申请日：2017-08-04
Applicant: BASF Corporation
Inventor： Wen-Mei Xue , Jeff H. Yang , Stanley A. Roth , Kenneth E. Voss , Sandip D. Shah , Jaya L. Mohanan
IPC: F01N3/20 , B01J29/072 , B01J37/02 , B01J37/08 , B01J35/00 , B01J29/76 , B01D53/94 , B01J29/06 , B01J29/068 , B01J29/80 , B01J29/72 , B01J29/74 , B01J29/00 , B01J29/54 , B01J29/56 , B01J37/30
Abstract: Certain selective catalytic reduction (SCR) articles, systems and methods provide for high NOx conversion while at the same time low N2O formation. The articles, systems and methods are suitable for instance for the treatment of exhaust gas of diesel engines. Certain articles have zoned coatings containing copper-containing molecular sieves disposed thereon, where for example a concentration of catalytic copper in an upstream zone is lower than the concentration of catalytic copper in a downstream zone.
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公开(公告)号：US20190168199A1
公开(公告)日：2019-06-06
申请号：US16323154
申请日：2017-08-04
Applicant: BASF Corporation
Inventor： Jeff H. Yang , Wen-Mei Xue , Stanley A. Roth , Kenneth E. Voss , Qi Fu , Subramanian Prasad , Barbara K. Slawski , Jaya L. Mohanan , Sandip D. Shah
IPC: B01J29/76 , B01J35/00 , B01J35/04 , B01J37/30 , B01J37/06 , B01J37/00 , B01J37/10 , B01J37/02 , B01D53/94 , F01N3/20 , F01N3/035 , F01N3/10
Abstract: Certain selective catalytic reduction (SCR) articles, systems and methods provide for high NOx conversion while at the same time low N2O formation. The articles, systems and methods are suitable for instance for the treatment of exhaust gas of diesel engines. Certain articles have zoned coatings disposed thereon, for example, a zoned coating comprising an upstream zone comprising a coating layer comprising a steam-activated iron-containing molecular sieve and a downstream zone comprising a coating layer comprising a high copper-containing molecular sieve.
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公开(公告)号：US20160101411A1
公开(公告)日：2016-04-14
申请号：US14973353
申请日：2015-12-17
Applicant: BASF CORPORATION
Inventor： Ivor Bull , Wen-Mei Xue , Patrick Burk , R. Samuel Boorse , William M. Jaglowski , Gerald Stephen Koermer , Ahmad Moini , Joseph A. Patchett , Joseph C. Dettling , Matthew Tyler Caudle
CPC classification number: B01J29/723 , B01D53/56 , B01D53/8628 , B01D53/9413 , B01D53/9418 , B01D53/9431 , B01D53/9477 , B01D2251/206 , B01D2251/2062 , B01D2251/2067 , B01D2255/20715 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , B01D2255/9032 , B01D2255/904 , B01D2255/9155 , B01D2257/40 , B01D2257/404 , B01D2258/012 , B01J23/42 , B01J23/8926 , B01J29/061 , B01J29/068 , B01J29/072 , B01J29/743 , B01J29/76 , B01J29/763 , B01J29/80 , B01J35/0006 , B01J35/04 , B01J37/0246 , B01J2029/062 , C01B39/46 , Y02T10/24 , Y10T428/24149
Abstract: Zeolite catalysts and systems and methods for preparing and using zeolite catalysts having the CHA crystal structure are disclosed. The catalysts can be used to remove nitrogen oxides from a gaseous medium across a broad temperature range and exhibit hydrothermal stable at high reaction temperatures. The zeolite catalysts include a zeolite carrier having a silica to alumina ratio from about 15:1 to about 256:1 and a copper to alumina ratio from about 0.25:1 to about 1:1.
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公开(公告)号：US08735311B2
公开(公告)日：2014-05-27
申请号：US13790973
申请日：2013-03-08
Applicant: BASF Corporation
Inventor： Ivor Bull , Wen-Mei Xue , Patrick Burk , R. Samuel Boorse , William M. Jaglowski , Gerald Stephen Koermer , Ahmad Moini , Joseph A. Patchett , Joseph C. Dettling , Matthew Tyler Caudle
IPC: B01J29/06
CPC classification number: B01J29/723 , B01D53/56 , B01D53/8628 , B01D53/9413 , B01D53/9418 , B01D53/9431 , B01D53/9477 , B01D2251/206 , B01D2251/2062 , B01D2251/2067 , B01D2255/20715 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , B01D2255/9032 , B01D2255/904 , B01D2255/9155 , B01D2257/40 , B01D2257/404 , B01D2258/012 , B01J23/42 , B01J23/8926 , B01J29/061 , B01J29/068 , B01J29/072 , B01J29/743 , B01J29/76 , B01J29/763 , B01J29/80 , B01J35/0006 , B01J35/04 , B01J37/0246 , B01J2029/062 , C01B39/46 , Y02T10/24 , Y10T428/24149
Abstract: Zeolite catalysts and systems and methods for preparing and using zeolite catalysts having the CHA crystal structure are disclosed. The catalysts can be used to remove nitrogen oxides from a gaseous medium across a broad temperature range and exhibit hydrothermal stable at high reaction temperatures. The zeolite catalysts include a zeolite carrier having a silica to alumina ratio from about 15:1 to about 256:1 and a copper to alumina ratio from about 0.25:1 to about 1:1.
Abstract translation: 公开了沸石催化剂和制备和使用具有CHA晶体结构的沸石催化剂的体系和方法。 催化剂可用于在宽温度范围内从气态介质中除去氮氧化物，并在高反应温度下表现出水热稳定性。 沸石催化剂包括具有约15:1至约256:1的二氧化硅与氧化铝的沸石载体，铜与氧化铝的比例为约0.25:1至约1:1。
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Patent Agency Ranking
公开(公告)号：US20180156090A1
公开(公告)日：2018-06-07
申请号：US15735509
申请日：2016-06-10
Applicant: BASF Corporation
Inventor： Wen-Mei Xue , John K. Hochmuth
CPC classification number: F01N3/101 , B01J23/44 , F01N3/103 , F01N3/106 , F01N3/2066 , F01N3/2073 , F01N13/009 , F01N13/0097 , F01N2510/063 , Y02T10/22 , Y02T10/24
Abstract: Described are exhaust gas treatment systems for treatment of a gasoline engine exhaust gas stream. The exhaust gas treatment systems comprise an ammonia generating and hydrocarbon oxidation catalyst, a TWC catalyst, and an ammonia selective catalytic reduction (SCR) catalyst downstream of the TWC catalyst. The ammonia generating and hydrocarbon oxidation catalyst comprises a refractory metal oxide support, a platinum component, and a palladium component. The ammonia generating and hydrocarbon oxidation catalyst is substantially free of ceria and substantially free of NOx storage components. The platinum and palladium components are present in a platinum to palladium ratio of greater than about 1 to 1.
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公开(公告)号：US09981258B2
公开(公告)日：2018-05-29
申请号：US15656132
申请日：2017-07-21
Applicant: BASF Corporation
Inventor： Wen-Mei Xue , Attilio Siani , John K. Hochmuth , Markus Kinne , Stefan Kielbassa
IPC: B01D53/94 , F01N3/08 , F01N3/28 , B01J21/04 , B01J21/06 , B01J23/63 , B01J35/00 , B01J35/04 , B01J37/02
CPC classification number: B01J35/0006 , B01D53/9422 , B01D53/945 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/2042 , B01D2255/2047 , B01D2255/2065 , B01D2255/20715 , B01D2255/2092 , B01D2255/407 , B01D2255/9022 , B01D2255/908 , B01D2255/91 , B01D2258/012 , B01J21/04 , B01J21/066 , B01J23/63 , B01J35/002 , B01J35/04 , B01J37/0244 , B01J37/0248 , F01N3/0842 , F01N3/2828 , F01N2510/0684 , Y02T10/22 , Y02T10/24
Abstract: A layered catalyst composite for the treatment of exhaust gas emissions, effective to provide lean NOx trap functionality and three-way conversion functionality is described. Layered catalyst composites can comprise catalytic material on a substrate, the catalytic material comprising at least two layers. The first layer comprising rare earth oxide-high surface area refractory metal oxide particles, an alkaline earth metal supported on the rare earth oxide-high surface area refractory metal oxide particles, and at least one first platinum group metal component supported on the rare earth oxide-high surface area refractory metal oxide particles. The second layer comprising a second platinum group metal component supported on a first oxygen storage component (OSC) and/or a first refractory metal oxide support and, optionally, a third platinum group metal supported on a second refractory metal oxide support or a second oxygen storage component.
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公开(公告)号：US09931596B2
公开(公告)日：2018-04-03
申请号：US15503903
申请日：2015-10-21
Applicant: BASF CORPORATION
Inventor： Xiaolai Zheng , Chunxin Ji , Wen-Mei Xue , Matthew J. Schladt , Xiaoming Wang , Tian Luo , Michel Deeba , Knut Wassermann
CPC classification number: B01D53/945 , B01D53/9418 , B01D53/9477 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/2042 , B01D2255/2065 , B01D2255/20715 , B01D2255/20761 , B01D2255/2092 , B01D2255/50 , B01D2255/502 , B01D2255/9022 , B01D2255/912 , B01D2255/9207 , B01J23/56 , B01J23/63 , B01J29/005 , B01J29/40 , B01J29/46 , B01J29/7007 , B01J29/76 , B01J29/7615 , B01J29/763 , B01J29/80 , B01J29/85 , B01J35/0006 , B01J37/0244 , B01J37/0246 , B01J2523/00 , Y02T10/24 , B01J2523/25 , B01J2523/31 , B01J2523/37 , B01J2523/3712 , B01J2523/48 , B01J2523/824 , B01J2523/822 , B01J2523/828
Abstract: An emissions treatment system for an exhaust stream of an internal combustion engine including hydrocarbons, carbon monoxide, and nitrogen oxides is provided. The disclosed system can include an exhaust conduit in fluid communication with the internal combustion engine via an exhaust manifold; a first three-way conversion catalyst (TWC-1) located downstream of the internal combustion engine in the exhaust conduit; an SCR-HCT catalyst comprising a selective catalytic reduction catalyst and a hydrocarbon trap downstream of the TWC-1 in the exhaust conduit; and a third catalyst downstream of the SCR-HCT combination in the exhaust conduit, the third catalyst comprising a platinum group metal (PGM) e.g., in an amount effective to oxidize hydrocarbons. Methods of making and using such systems and components thereof are also provided.
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公开(公告)号：US09611774B2
公开(公告)日：2017-04-04
申请号：US14467250
申请日：2014-08-25
Applicant: BASF Corporation
Inventor： Wen-Mei Xue , Xinyi Wei , Marcus Hilgendorff , Patrick Burk
IPC: B01D50/00 , F01N3/20 , B01J27/232 , B01D53/94 , F01N3/10 , F01N3/035 , B01J37/02 , B01J35/00 , B01J23/63 , B01J35/02 , B01J23/00 , B01J23/10 , B01J37/10 , B01J35/04 , B01J35/10
CPC classification number: F01N3/2066 , B01D53/94 , B01D53/9418 , B01D53/944 , B01D53/945 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/1028 , B01D2255/2042 , B01D2255/2065 , B01D2255/9022 , B01D2255/91 , B01D2258/012 , B01J23/002 , B01J23/10 , B01J23/63 , B01J27/232 , B01J35/0006 , B01J35/0013 , B01J35/002 , B01J35/023 , B01J35/04 , B01J35/1009 , B01J35/1014 , B01J37/0201 , B01J37/0248 , B01J37/10 , B01J2523/00 , F01N3/035 , F01N3/101 , F01N2250/02 , F01N2610/02 , Y02C20/10 , Y02T10/22 , B01J2523/22 , B01J2523/25 , B01J2523/31 , B01J2523/3712 , B01J2523/48 , B01J2523/824 , B01J2523/828
Abstract: A catalyst for the treatment of exhaust gas emissions is disclosed. The catalyst can comprise ceria-alumina particles having a ceria phase present in a weight percent of the composite in the range of about 20% to about 80% on an oxide basis, an alkaline earth metal component supported on the ceria-alumina particles, wherein the CeO2 is present in the form of crystallites that are hydrothermally stable and have an average crystallite size less than 160 Å after aging at 950° C. for 5 hours in 2% O2 and 10% steam in N2.
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公开(公告)号：US20160101412A1
公开(公告)日：2016-04-14
申请号：US14973560
申请日：2015-12-17
Applicant: BASF CORPORATION
Inventor： Ivor Bull , Wen-Mei Xue , Patrick Burk , R. Samuel Boorse , William M. Jaglowski , Gerald Stephen Koermer , Ahmad Moini , Joseph A. Patchett , Joseph C. Dettling , Matthew Tyler Caudle
CPC classification number: B01J29/723 , B01D53/56 , B01D53/8628 , B01D53/9413 , B01D53/9418 , B01D53/9431 , B01D53/9477 , B01D2251/206 , B01D2251/2062 , B01D2251/2067 , B01D2255/20715 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , B01D2255/9032 , B01D2255/904 , B01D2255/9155 , B01D2257/40 , B01D2257/404 , B01D2258/012 , B01J23/42 , B01J23/8926 , B01J29/061 , B01J29/068 , B01J29/072 , B01J29/743 , B01J29/76 , B01J29/763 , B01J29/80 , B01J35/0006 , B01J35/04 , B01J37/0246 , B01J2029/062 , C01B39/46 , Y02T10/24 , Y10T428/24149
Abstract: Zeolite catalysts and systems and methods for preparing and using zeolite catalysts having the CHA crystal structure are disclosed. The catalysts can be used to remove nitrogen oxides from a gaseous medium across a broad temperature range and exhibit hydrothermal stable at high reaction temperatures. The zeolite catalysts include a zeolite carrier having a silica to alumina ratio from about 15:1 to about 256:1 and a copper to alumina ratio from about 0.25:1 to about 1:1.
Abstract translation: 公开了沸石催化剂和制备和使用具有CHA晶体结构的沸石催化剂的体系和方法。 催化剂可用于在宽温度范围内从气态介质中除去氮氧化物，并在高反应温度下表现出水热稳定性。 沸石催化剂包括具有约15:1至约256:1的二氧化硅与氧化铝的沸石载体，铜与氧化铝的比例为约0.25:1至约1:1。
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