公开(公告)号：US20230016066A1

公开(公告)日：2023-01-19

申请号：US17756120

申请日：2020-11-22

Applicant: BASF CORPORATION

Inventor： Yipeng Sun ,  Aleksei Vjunov ,  Ke-Bin Low

IPC: B01D53/94

Abstract: The present disclosure generally relates to emission control catalyst articles comprising a platinum group metal (PGM) enriched zone, methods of making such emission control catalyst articles, and methods of using such emission control catalyst articles.

公开(公告)号：US20240424444A1

公开(公告)日：2024-12-26

申请号：US18274002

申请日：2022-01-25

Applicant: BASF Corporation

Inventor： Jun Cong Jiang ,  Yipeng Sun ,  Aleksei Vjunov ,  Ye Hui Wu ,  Attilio Siani

IPC: B01D53/94 ,  B01J23/46 ,  B01J23/63 ,  B01J35/00 ,  B01J35/56 ,  B01J37/02 ,  B01J37/08 ,  F01N3/035

Abstract: The disclosure relates to a particulate filter for the treatment of exhaust gas from an internal combustion engine, wherein the particulate filter comprises a catalyst material layer comprising at least one platinum group metal, and the average loading of platinum group metal in the region which is around the whole central axis of the particulate filter and accounts for 20 to 70 vol. % of the total volume of the particulate filter, is 1.1 to 10 times the average loading of platinum group metal in the remaining part of the particulate filter. The particulate filter according to the present invention has a centralized-distributed PGM in the radial direction, shows excellent HC, NOx, and CO conversions and low backpressure.