公开(公告)号：US20190299159A1

公开(公告)日：2019-10-03

申请号：US16447243

申请日：2019-06-20

Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY

Inventor： Andrew Francis Chiffey ,  Oliver Cooper ,  Christopher Daly ,  Mark Feaviour ,  Steven Merrick ,  Francois Moreau ,  Matthew O'Brien ,  David Thompsett

IPC: B01D53/94 ,  F01N3/10 ,  B01J37/00 ,  B01J23/644 ,  B01J37/02 ,  F01N3/08 ,  B01J29/78 ,  B01J37/10 ,  B01J35/04 ,  B01J35/00 ,  B01J29/80 ,  B01J29/83 ,  B01J23/656

Abstract: An oxidation catalyst is described for treating an exhaust gas produced by a diesel engine comprising a catalytic region and a substrate, wherein the catalytic region comprises a catalytic material comprising: bismuth (Bi), antimony (Sb) or an oxide thereof; a platinum group metal (PGM) selected from the group consisting of (i) platinum (Pt), (ii) palladium (Pd) and (iii) platinum (Pt) and palladium (Pd); and a support material, which is a refractory oxide; wherein the platinum group metal (PGM) is supported on the support material; and wherein the bismuth (Bi), antimony (Sb) or an oxide thereof is supported on the support material and/or the refractory oxide comprises the bismuth, antimony or an oxide thereof.

公开(公告)号：US10357743B2

公开(公告)日：2019-07-23

申请号：US15293364

申请日：2016-10-14

Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY

Inventor： Andrew Francis Chiffey ,  Oliver Cooper ,  Christopher Daly ,  Mark Feaviour ,  Steven Merrick ,  Francois Moreau ,  Matthew O'Brien ,  David Thompsett

IPC: B01D53/94 ,  B01J23/644 ,  B01J23/656 ,  B01J29/78 ,  B01J35/04 ,  F01N3/10 ,  B01J35/00 ,  B01J37/02 ,  B01J37/10 ,  B01J29/80 ,  B01J29/83 ,  B01J37/00 ,  F01N3/08

Abstract: An oxidation catalyst is described for treating an exhaust gas produced by a diesel engine comprising a catalytic region and a substrate, wherein the catalytic region comprises a catalytic material comprising: bismuth (Bi), antimony (Sb) or an oxide thereof; a platinum group metal (PGM) selected from the group consisting of (i) platinum (Pt), (ii) palladium (Pd) and (iii) platinum (Pt) and palladium (Pd); and a support material, which is a refractory oxide; wherein the platinum group metal (PGM) is supported on the support material; and wherein the bismuth (Bi), antimony (Sb) or an oxide thereof is supported on the support material and/or the refractory oxide comprises the bismuth, antimony or an oxide thereof.