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.

公开(公告)号：US20240344473A1

公开(公告)日：2024-10-17

申请号：US18682744

申请日：2022-08-10

Applicant: BASF CORPORATION

Inventor： Inga ELLMERS ,  Florian WALTZ ,  Juncong JIANG ,  Attilio SIANI ,  Stephan SIEMUND ,  Thomas SCHMITZ

IPC: F01N3/035 ,  B01D53/94

CPC classification number: F01N3/035 ,  B01D53/945 ,  B01D53/9468 ,  B01D2255/102 ,  B01D2255/9022 ,  B01D2255/915 ,  B01D2258/01

Abstract: A catalyzed particulate filter for exhaust gas from an internal combustion engine, comprising: a particulate filter of total length L; a first catalytic layer coated onto the particulate filter, comprising a first composition, wherein the first composition comprising a first support material; and a first platinum group metal and/or a first catalytic active transitional metal; a second catalytic layer coated onto the particulate filter, comprising a second composition, wherein the second composition comprises a second support material; and said first catalytic layer is present on a portion of said particulate filter, and extends from either upstream or downstream end in axial direction of said particulate filter for a length L1, and L1 is in the range from 20 to 90% of L.

公开(公告)号：US20230330640A1

公开(公告)日：2023-10-19

申请号：US18042649

申请日：2021-08-06

Applicant: BASF CORPORATION

Inventor： Jun Cong JIANG ,  Ye Hui WU ,  Florian WALTZ ,  Attilio SIANI ,  Thomas SCHMITZ ,  Shau Lin CHEN

IPC: B01J23/78 ,  B01J23/02 ,  B01J21/04 ,  B01J23/34 ,  B01J35/04 ,  B01J35/10 ,  B01J35/02 ,  B01J35/00 ,  B01D53/94 ,  F01N3/28 ,  F01N3/022 ,  F01N3/10

CPC classification number: B01J23/78 ,  B01J23/02 ,  B01J21/04 ,  B01J23/34 ,  B01J35/04 ,  B01J35/1014 ,  B01J35/026 ,  B01J35/0026 ,  B01D53/94 ,  F01N3/2825 ,  F01N3/0226 ,  F01N3/101 ,  F01N3/106 ,  F01N3/0222 ,  B01D2255/2092 ,  B01D2255/2045 ,  B01D2255/30 ,  B01D2255/20707 ,  B01D2255/2047 ,  B01D2255/20738 ,  B01D2255/20715 ,  B01D2255/9207 ,  B01D2255/9202 ,  B01D2255/9155 ,  B01D2258/012 ,  B01D2257/702 ,  B01D2257/502 ,  B01D2257/404 ,  F01N2370/04 ,  F01N2330/06 ,  F01N2330/32

Abstract: Disclosed herein is a particulate filter for use in an emission treatment system of an internal combustion engine. The particulate filter provides high fresh filtration efficiency and has minimal to no impact on backpressures.

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.

公开(公告)号：US20210293168A1

公开(公告)日：2021-09-23

申请号：US17250544

申请日：2019-08-30

Applicant: BASF Corporation

Inventor： David SCHLERETH ,  Hao LI ,  Stephen SIEMUND ,  Thomas SCHMITZ ,  Attilio SIANI ,  Florian WALTZ

IPC: F01N3/035 ,  F01N3/10 ,  F01N3/022 ,  B01J23/63

Abstract: The present invention relates to a four-way conversion catalyst for the treatment of an exhaust gas stream of a gasoline engine, the catalyst comprising a porous wall-flow filter substrate comprising an inlet end, an outlet end, a substrate axial length extending between the inlet end and the outlet end, and a plurality of passages defined by porous internal walls of the porous wallflow filter substrate, wherein the plurality of passages comprise inlet passages having an open inlet end and a closed outlet end, and outlet passages having a closed inlet end and an open outlet end, wherein the interface between the passages and the porous internal walls is defined by the surface of the internal walls; wherein the porous internal walls comprise pores which comprise an oxidic component comprising a first refractory metal oxide, said first refractory metal oxide comprising aluminum, said oxidic component having a platinum group metal content in the range of from 0 to 0.001 weight-% based on the total weight of the oxidic component; wherein the catalyst further comprises a first three-way conversion catalytic coating, at least weight-% thereof being comprised in the pores of the internal walls, said first three-way conversion catalytic coating comprising an oxygen storage compound and a platinum group metal supported on a second refractory metal oxide.