公开(公告)号：EP3411147A1

公开(公告)日：2018-12-12

申请号：EP17747084.6

申请日：2017-02-01

Applicant: BASF Corporation

Inventor： SHACKLADY-MCATEE, Danielle Maria ,  LIU, Ye ,  TRAN, Pascaline

IPC: B01J35/02 ,  B01J37/02 ,  B01J21/04 ,  B01J21/08 ,  B01J23/72 ,  B01J23/40 ,  B01J37/08 ,  B01D53/94 ,  B01D53/92

CPC classification number: B01D53/945 ,  B01D2255/1025 ,  B01D2255/2065 ,  B01D2255/20715 ,  B01D2255/2073 ,  B01D2255/20761 ,  B01D2255/2092 ,  B01D2255/9022 ,  B01J21/066 ,  B01J23/002 ,  B01J23/8892 ,  B01J23/8986 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0009 ,  B01J37/0036 ,  B01J37/0201 ,  B01J37/0225 ,  B01J37/0244 ,  B01J37/088 ,  B01J2523/00 ,  B01J2523/17 ,  B01J2523/31 ,  B01J2523/3712 ,  B01J2523/48 ,  B01J2523/72 ,  B01J2523/822 ,  Y02T10/22

Abstract: The invention provides a catalyst article including a substrate underlying a multi-layer catalyst composition and a multi-layer catalyst composition comprising a first layer and a second layer, the first layer positioned between the substrate and the second layer, wherein the first layer comprises a first porous refractory oxide material impregnated with at least one base metal component and the second layer comprises a second porous refractory oxide material impregnated with at least one platinum group metal. Either the second porous refractory oxide material is a porous refractory oxide material other than alumina or the catalyst composition further comprises an intermediate layer between the first layer and the second layer, the intermediate layer comprising a refractory oxide material other than alumina. Methods of making and using the catalyst article are also provided, as well as emission treatment systems comprising the catalyst article.