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.

公开(公告)号：US20240001271A1

公开(公告)日：2024-01-04

申请号：US18254249

申请日：2021-12-01

Applicant: BASF CORPORATION

Inventor： Jun Cong Jiang ,  Yun Fei Qi ,  Florian Waltz ,  Stephan Siemund ,  Ye Shen ,  Attilio Siani ,  Thomas Schmitz ,  Xiao Min Yin

IPC: B01D39/20 ,  B01D53/94

CPC classification number: B01D39/20 ,  B01D2239/0471 ,  B01D53/9445

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 functional material layer, and the amount of the functional material layer in the region which is around the whole central axis of the particulate filter and accounts for 11.1 vol. % of the total volume of the particulate filter, is in the range from 13 to 40 wt. %, based on the total weight of the functional material layer, relates to the process for preparing the particulate filter and relates to a method for the treatment of exhaust gas from an internal combustion engine. The particulate filter according to the present invention has a centralized-distributed functional material layer in the radial direction, shows excellent filtration efficiency and low backpressure.

公开(公告)号：US11305260B2

公开(公告)日：2022-04-19

申请号：US16975611

申请日：2019-02-22

Applicant: BASF Corporation

Inventor： Yun Fei Qi ,  Jun Cong Jiang ,  Shau Lin Chen ,  Weiyong Tang ,  Yu Lin Qiu ,  Liang Fang Lv ,  Yan Zhu Lei

IPC: B01D53/94 ,  B01J23/46 ,  B01J35/04 ,  B01J35/10 ,  B01J37/02 ,  F01N3/10 ,  F01N3/22 ,  F01N3/28 ,  B01J37/08 ,  F01N3/022

Abstract: A catalyst for gasoline engine exhaust gas after-treatment, comprising Pt and optionally at least one other platinum group metal on a hydrothermal stable support material which is coated onto a gasoline particulate filter. The catalyst oxidizes particulate matter trapped in the gasoline particulate filter under low temperature and abates NOx, CO and HC. Also a process for preparing the catalyst is disclosed, and a method for after-treatment of gasoline engine exhaust gas using the catalyst is disclosed.