公开(公告)号：US20230372905A1

公开(公告)日：2023-11-23

申请号：US18031458

申请日：2021-10-15

申请人： BASF Corporation

发明人： M. Shahjahan Kazi ,  Shiang Sung ,  Claire Chunjuan Zhang ,  Xiaolai Zheng ,  Sandip D. Shah ,  Andrew Thoms

IPC分类号： B01J23/42 ,  B01J21/04 ,  B01J23/44 ,  B01D53/92 ,  B01J35/10 ,  F01N3/20 ,  B01D53/94

CPC分类号： B01J23/42 ,  B01J21/04 ,  B01J23/44 ,  B01D53/925 ,  B01J35/1061 ,  B01J35/1019 ,  B01J35/1014 ,  F01N3/2066 ,  B01D53/945 ,  F01N2370/02 ,  F01N2330/06 ,  B01D2258/012 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2257/40 ,  B01D2257/502 ,  B01D2257/702

摘要： The present disclosure relates to oxidation catalyst compositions for use in a close-coupled diesel oxidation catalyst (ccDOC) application, in which the ccDOC can function as a heat generator under high space velocity conditions. The oxidation catalyst compositions include a high surface area support material doped with at least one metal oxide, and a platinum group metal (PGM) supported on the doped high surface area support material.

公开(公告)号：US20190178128A1

公开(公告)日：2019-06-13

申请号：US16278654

申请日：2019-02-18

申请人： BASF Corporation

发明人： Xiaoming Wang ,  Michel Deeba ,  Xiaolai Zheng ,  Sven Titlbach ,  Andreas Sundermann ,  Stephan Andreas Schunk

IPC分类号： F01N3/10 ,  B01J23/46 ,  B01D53/94 ,  B01J37/02 ,  B01J37/03 ,  B01J37/04 ,  B01J37/08 ,  B01J21/06 ,  B01J23/00 ,  B01J23/10 ,  B01J23/63

摘要： Composites of mixed metal oxides for an exhaust gas purifying catalyst comprise the following co-precipitated materials by weight of the composite: zirconia in an amount in the range of 55-99%; titania in an amount in the range of 1-25%; a promoter and/or a stabilizer in an amount in the range of 0-20%. These composites are effective as supports for platinum group metals (PGMs), in particular rhodium.

公开(公告)号：US10260395B2

公开(公告)日：2019-04-16

申请号：US15738879

申请日：2016-06-30

申请人： BASF Corporation

发明人： Yuejin Li ,  Xiaolai Zheng ,  Stanley A. Roth ,  Olga Gerlach ,  Andreas Sundermann

IPC分类号： F01N3/20 ,  B01D53/94 ,  B01J35/00 ,  B01J37/00 ,  B01J37/02 ,  B01J37/08 ,  B01J23/00 ,  B01J23/63 ,  B01J23/66 ,  B01J23/89 ,  B01J23/44 ,  B01J23/46 ,  B01J35/10

摘要： A nitrous oxide (N2O) removal catalyst composite is described, which includes: a N2O removal catalytic material on a carrier, wherein the catalytic material comprises a platinum group metal (PGM) component on a ceria-containing support having a single phase, cubic fluorite crystal structure. The catalytic material is effective to decompose nitrous oxide (N2O) to nitrogen (N2) and oxygen (O2) and/or to reduce N2O to N2 and water (H2O) and/or (CO2) under conditions of an exhaust stream of an internal combustion engine operating under conditions that are stoichiometric or lean with periodic rich transient excursions. Methods of making and using the same are also provided.

公开(公告)号：US10124292B2

公开(公告)日：2018-11-13

申请号：US15590535

申请日：2017-05-09

申请人： BASF Corporation

发明人： Chung-Zong Wan ,  Xiaolai Zheng ,  Susanne Stiebels ,  Claudia Zabel ,  Torsten Neubauer ,  R. Samuel Boorse

IPC分类号： F01N3/10 ,  B01D53/94 ,  F01N3/035 ,  F01N3/08 ,  F01N3/20 ,  F01N13/02 ,  B01D53/58 ,  B01D53/92 ,  F01N3/02 ,  F01N3/021

摘要： Provided are emissions treatment systems for an exhaust stream having an ammonia-generating component, such as a NOx storage reduction (NSR) catalyst or a lean NOx trap (LNT) catalyst, and an SCR catalyst disposed downstream of the ammonia-generating catalyst. The SCR catalyst can be a molecular sieve having the CHA crystal structure, for example SSZ-13 or SAPO-34, which can be ion-exchanged with copper. The LNT can be layered, having an undercoat washcoat layer comprising a support material, at least one precious metal, and at least one NOx sorbent selected from the group consisting of alkaline earth elements, rare earth elements, and combinations thereof and a top washcoat layer comprising a support material, at least one precious metal, and ceria in particulate form, the top washcoat layer being substantially free of alkaline earth components. The emissions treatment system is advantageously used for the treatment of exhaust streams from diesel engines and lean burn gasoline engines.

公开(公告)号：US20170241313A1

公开(公告)日：2017-08-24

申请号：US15590535

申请日：2017-05-09

申请人： BASF Corporation

发明人： Chung-Zong Wan ,  Xiaolai Zheng ,  Susanne Stiebels ,  Claudia Zabel ,  Torsten Neubauer ,  R. Samuel Boorse

IPC分类号： F01N3/035 ,  B01D53/94 ,  B01D53/58 ,  F01N3/10

CPC分类号： B01D53/9431 ,  B01D53/58 ,  B01D53/92 ,  B01D53/9418 ,  B01D53/9422 ,  B01D53/9472 ,  B01D53/9477 ,  B01D2251/2062 ,  B01D2255/102 ,  B01D2255/2042 ,  B01D2255/2045 ,  B01D2255/206 ,  B01D2255/2063 ,  B01D2255/2066 ,  B01D2255/2068 ,  B01D2255/20753 ,  B01D2255/20761 ,  B01D2255/2092 ,  B01D2255/50 ,  B01D2255/9022 ,  B01D2255/91 ,  B01D2255/9155 ,  B01D2255/9205 ,  B01D2258/012 ,  F01N3/02 ,  F01N3/021 ,  F01N3/035 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/10 ,  F01N3/103 ,  F01N3/206 ,  F01N3/2066 ,  F01N3/2073 ,  F01N13/02 ,  F01N2510/063 ,  F01N2510/0682 ,  Y02T10/24

摘要： Provided are emissions treatment systems for an exhaust stream having an ammonia-generating component, such as a NOx storage reduction (NSR) catalyst or a lean NOx trap (LNT) catalyst, and an SCR catalyst disposed downstream of the ammonia-generating catalyst. The SCR catalyst can be a molecular sieve having the CHA crystal structure, for example SSZ-13 or SAPO-34, which can be ion-exchanged with copper. The LNT can be layered, having an undercoat washcoat layer comprising a support material, at least one precious metal, and at least one NOx sorbent selected from the group consisting of alkaline earth elements, rare earth elements, and combinations thereof and a top washcoat layer comprising a support material, at least one precious metal, and ceria in particulate form, the top washcoat layer being substantially free of alkaline earth components. The emissions treatment system is advantageously used for the treatment of exhaust streams from diesel engines and lean burn gasoline engines.

公开(公告)号：US20230321635A1

公开(公告)日：2023-10-12

申请号：US18043964

申请日：2021-09-23

申请人： BASF Corporation ,  BASF SE

发明人： Yuejin Li ,  Andreas Sundermann ,  Xiaolai Zheng ,  Yipeng Sun ,  Karifala Dumbuya ,  Pascaline Tran

IPC分类号： B01J23/42 ,  B01J23/46 ,  B01J23/10 ,  B01J21/04 ,  B01J21/06 ,  B01J37/02 ,  B01J37/04 ,  B01D53/86 ,  F01N3/10

CPC分类号： B01J23/42 ,  B01J23/464 ,  B01J23/10 ,  B01J21/04 ,  B01J21/066 ,  B01J37/0201 ,  B01J37/04 ,  B01D53/865 ,  F01N3/101 ,  F01N2570/14 ,  F01N2570/10 ,  F01N2570/12 ,  F01N2330/18

摘要： The present invention provides a catalyst composition comprising a) platinum; b) rhodium; and c) a ceria-alumina composite, a zirconia composite or a mixture thereof, wherein platinum is supported on the ceria-alumina composite, zirconia composite or mixture thereof, wherein rhodium is supported on the ceria-alumina composite, zirconia composite or mixture thereof, wherein CeO2 in the ceria alumina composite is 1.0 to 50 wt. %, based on the total weight of the ceria-alumina composite, wherein the amount of ZrO2 in the zirconia composite is 50 to 99 wt. %, based on the total weight of the zirconia composite. The present invention also provides a catalytic article comprising the catalyst composition and its preparation.

公开(公告)号：US10906032B2

公开(公告)日：2021-02-02

申请号：US15752968

申请日：2016-08-18

申请人： BASF Corporation ,  N.E. Chemcat Corporation

发明人： Xiaolai Zheng ,  Michel Deeba ,  Xiaofan Yang ,  Qi Fu ,  Knut Wassermann ,  Makoto Nagata ,  Yasuharu Kanno ,  Hiroki Nakayama

IPC分类号： B01J29/85 ,  B01J29/76 ,  B01J23/755 ,  B01J23/10 ,  B01J23/745 ,  B01J21/06 ,  B01J35/00 ,  B01J35/04 ,  B01J37/30 ,  B01J37/08 ,  B01J37/02 ,  B01D53/94 ,  F01N3/20 ,  F01N3/28 ,  F01N3/10 ,  F01N13/00 ,  B01J23/00 ,  B01J23/63 ,  B01J23/83 ,  B01J35/10 ,  B01J29/072

摘要： Described are catalysts effective to abate NOx, hydrocarbons, and carbon monoxide from a gasoline engine exhaust gas. Such catalysts include a substrate having a first and second material disposed thereon, the first material effective to catalyze selective catalytic reduction of nitrogen oxides in the presence of ammonia and the second material effective to abate hydrocarbons and carbon monoxide, the first material comprising a molecular sieve promoted with copper and/or iron in a low loading, the second material comprising at least one oxide of Ni, Fe, Mn, Co, and Cu on a support selected from oxides of Ce, Ce—Zr, Zr, Mn, Pr and combinations thereof. Also described are gasoline engine exhaust gas treatment systems and methods of treating exhaust gas from a gasoline engine.

公开(公告)号：US20180195425A1

公开(公告)日：2018-07-12

申请号：US15738879

申请日：2016-06-30

申请人： BASF Corporation

发明人： Yuejin Li ,  Xiaolai Zheng ,  Stanley A. Roth ,  Olga Gerlach ,  Andreas Sundermann

IPC分类号： F01N3/20 ,  B01D53/94 ,  B01J35/00 ,  B01J37/00 ,  B01J37/02 ,  B01J37/08

CPC分类号： F01N3/208 ,  B01D53/9404 ,  B01D53/9418 ,  B01D53/9427 ,  B01D53/9445 ,  B01D53/9477 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/1028 ,  B01D2255/104 ,  B01D2255/106 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/2068 ,  B01D2255/207 ,  B01D2255/20715 ,  B01D2255/9202 ,  B01D2255/9207 ,  B01D2257/402 ,  B01D2258/012 ,  B01J23/002 ,  B01J23/44 ,  B01J23/464 ,  B01J23/63 ,  B01J23/66 ,  B01J23/894 ,  B01J35/0006 ,  B01J35/002 ,  B01J35/0026 ,  B01J35/1014 ,  B01J35/1038 ,  B01J37/0018 ,  B01J37/0201 ,  B01J37/0205 ,  B01J37/082 ,  B01J37/088 ,  B01J2523/00 ,  Y02C20/10 ,  Y02T10/22 ,  Y02T10/24 ,  B01J2523/36 ,  B01J2523/3706 ,  B01J2523/3712 ,  B01J2523/3725 ,  B01J2523/48 ,  B01J2523/822 ,  B01J2523/3718 ,  B01J2523/17 ,  B01J2523/18 ,  B01J2523/827 ,  B01J2523/19 ,  B01J2523/824 ,  B01J2523/828

摘要： A nitrous oxide (N2O) removal catalyst composite is described, which includes: a N2O removal catalytic material on a carrier, wherein the catalytic material comprises a platinum group metal (PGM) component on a ceria-containing support having a single phase, cubic fluorite crystal structure. The catalytic material is effective to decompose nitrous oxide (N2O) to nitrogen (N2) and oxygen (O2) and/or to reduce N2O to N2 and water (H2O) and/or (CO2) under conditions of an exhaust stream of an internal combustion engine operating under conditions that are stoichiometric or lean with periodic rich transient excursions. Methods of making and using the same are also provided.

公开(公告)号：US09931596B2

公开(公告)日：2018-04-03

申请号：US15503903

申请日：2015-10-21

申请人： BASF CORPORATION

发明人： Xiaolai Zheng ,  Chunxin Ji ,  Wen-Mei Xue ,  Matthew J. Schladt ,  Xiaoming Wang ,  Tian Luo ,  Michel Deeba ,  Knut Wassermann

IPC分类号： B01D53/94 ,  F01N3/20 ,  B01J23/56 ,  B01J29/70 ,  B01J29/76

CPC分类号： 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

摘要： 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.

公开(公告)号：US20180029016A1

公开(公告)日：2018-02-01

申请号：US15548657

申请日：2016-02-08

申请人： BASF Corporation

发明人： Shiang Sung ,  Patrick William McCanty ,  Stanley A. Roth ,  Xiaolai Zheng ,  Olga Gerlach ,  Markus Kögel

IPC分类号： B01J23/656 ,  B01J35/00 ,  B01J35/04 ,  F01N3/10 ,  B01J37/08 ,  B01J37/20 ,  B01D53/94 ,  B01J23/63 ,  B01J37/02

CPC分类号： B01J23/6562 ,  B01D53/9418 ,  B01D53/944 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/2042 ,  B01D2255/2065 ,  B01D2255/2073 ,  B01D2255/2092 ,  B01D2255/30 ,  B01D2255/40 ,  B01D2255/9025 ,  B01D2255/91 ,  B01D2255/9155 ,  B01J23/002 ,  B01J23/63 ,  B01J29/061 ,  B01J29/068 ,  B01J29/076 ,  B01J29/088 ,  B01J29/126 ,  B01J29/166 ,  B01J29/185 ,  B01J29/22 ,  B01J29/26 ,  B01J29/405 ,  B01J29/44 ,  B01J29/48 ,  B01J29/655 ,  B01J29/67 ,  B01J29/69 ,  B01J29/7057 ,  B01J29/7065 ,  B01J29/7415 ,  B01J29/743 ,  B01J29/7815 ,  B01J29/783 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0236 ,  B01J37/0244 ,  B01J37/0246 ,  B01J37/0248 ,  B01J37/08 ,  B01J37/10 ,  B01J37/20 ,  B01J2523/00 ,  F01N3/106 ,  F01N3/2066 ,  F01N2370/02 ,  B01J2523/25 ,  B01J2523/31 ,  B01J2523/3712 ,  B01J2523/72 ,  B01J2523/824 ,  B01J2523/828 ,  B01J2523/41

摘要： An oxidation catalyst composite, methods, and systems for the treatment of exhaust gas emissions from a diesel engine are described. More particularly, described is an oxidation catalyst composite including a first oxidation component comprising a first refractory metal oxide support, palladium (Pd) and platinum (Pt); a NOx storage component comprising one or more of alumina, silica, titania, ceria, or manganese; and a second oxidation component comprising a second refractory metal oxide, a zeolite, and Pt. The oxidation catalyst composite is sulfur tolerant, adsorbs NOx and thermally releases the stored NOx at temperature less than 350° C.