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公开(公告)号:US20190099749A1
公开(公告)日:2019-04-04
申请号:US16051671
申请日:2018-08-01
IPC分类号: B01J35/10 , B01J29/85 , B01J29/06 , B01J29/04 , B01J35/04 , B01J37/02 , F01N3/035 , F01N3/029 , B01D53/94
摘要: The present invention provides an exhaust gas purification catalyst provided with: a substrate of wall flow structure in which inlet cells and outlet cells are partitioned by porous partition walls; and a catalyst layer disposed at least inside the partition wall and including a catalyst body. The catalyst layer satisfies the following conditions: (1) the pore volume of pores no larger than 5 μm, as measured in accordance with a mercury intrusion technique, is 24000 mm3 or greater per L of volume of the substrate; and (2) a permeability coefficient measured by a Perm porometer is 0.6 μm2 to 4.4 μm2.