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.