专利检索 ap:("BASF CORPORATION" OR "BASF (CHINA) COMPANY LIMITED") AND inv:"ELLMERS, Inga" 第 1 页

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发明申请
PARTICULATE FILTER HAVING PARTIALLY COATED CATALYTIC LAYER 审中-公开

公开(公告)号：WO2023016489A1

公开(公告)日：2023-02-16

申请号：PCT/CN2022/111444

申请日：2022-08-10

申请人： BASF CORPORATION , BASF (CHINA) COMPANY LIMITED

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

IPC分类号： B01D53/94 , F01N3/022

摘要： 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.