公开(公告)号：US20230330598A1

公开(公告)日：2023-10-19

申请号：US18028800

申请日：2021-09-29

Applicant: BASF Corporation

Inventor： Gerd Grubert ,  Alfred Punke ,  Arne Tobias Niggebaum ,  Sven Jare Lohmeier ,  Emre Emmez ,  Torsten Neubauer ,  Jeffrey B. Hoke ,  Shiang Sung

IPC: B01D53/94 ,  B01J29/67 ,  B01J29/74 ,  B01J23/34 ,  B01J35/00 ,  F01N3/10 ,  F01N3/20 ,  F01N3/28 ,  F01N13/00

CPC classification number: B01D53/9422 ,  B01D53/9477 ,  B01D53/9418 ,  B01D53/944 ,  B01J29/67 ,  B01J29/7415 ,  B01J23/34 ,  B01J35/0006 ,  F01N3/106 ,  F01N3/2066 ,  F01N3/2803 ,  F01N3/2026 ,  F01N13/009 ,  B01D2255/50 ,  B01D2255/91 ,  B01D2258/012 ,  B01D2257/404 ,  B01D2255/1023 ,  B01D2255/1021 ,  B01D2255/2073 ,  B01D2255/2092 ,  B01D2255/9022 ,  F01N2610/1453 ,  F01N2370/04 ,  F01N2330/30

Abstract: The present invention relates a system for the treatment of an exhaust gas of a diesel combustion engine, said system comprising a specific NOx adsorber component, a diesel oxidation catalyst (DOC) component, a selective catalytic reduction (SCR) component, a gas heating component, and a reductant injector, wherein in said system, the specific NOx adsorber component is arranged upstream of the gas heating component, the reductant injector is arranged up-stream of the SCR component, the gas heating component is arranged upstream of the reductant injector, the DOC component is arranged upstream of the reductant injector, and the DOC component and the gas heating component are directly consecutive components. Further, the present invention relates a process for preparing such a system and use thereof.

公开(公告)号：US20230398532A1

公开(公告)日：2023-12-14

申请号：US18033863

申请日：2021-10-28

Applicant: BASF Corporation

Inventor： Gerd Grubert ,  Arne Tobias Niggebaum ,  Sven Jare Lohmeier ,  Torsten Neubauer

IPC: B01J37/02 ,  B01J23/63 ,  B01J35/00 ,  F01N3/10 ,  B01D53/94 ,  B01J29/70 ,  B01J6/00 ,  B01J20/08 ,  B01J35/10

CPC classification number: B01J37/0244 ,  B01J23/63 ,  B01J35/0006 ,  F01N3/101 ,  B01D53/945 ,  B01D53/9481 ,  B01J29/70 ,  B01J6/001 ,  B01J20/08 ,  B01J35/1042 ,  F01N2510/0684 ,  B01J21/04

Abstract: The present invention relates to a catalyst, in particular to a three-way diesel catalyst, for the treatment of a diesel exhaust gas, the catalyst comprising a substrate and two specific coatings disposed thereon, wherein the first coating particularly comprises a first platinum group metal component supported on a first oxidic support material, a second platinum group metal component supported on a second oxidic support material, and a first oxygen storage component, wherein at least 30 weight-% of the first oxygen storage component consist of cerium oxide, calculated as CeOa, and wherein the second coating particularly comprises a third platinum group metal component and a fourth platinum group metal component, wherein the third platinum group metal component and the fourth platinum group metal component are supported on a third oxidic support material. Further, a process for the preparation of such a catalyst is disclosed as well as a use thereof.