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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.
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公开(公告)号：US11103858B2
公开(公告)日：2021-08-31
申请号：US16273371
申请日：2019-02-12
Applicant: Johnson Matthey Public Limited Company
Inventor： Andrew Francis Chiffey , Jack Corps , Laura Mitchell-Downie , Francois Moreau , Matthew O'Brien
IPC: B01J29/78 , B01D53/94 , F01N3/08 , F01N13/00 , B01J21/04 , B01J21/12 , B01J23/44 , B01J23/63 , B01J23/656 , B01J29/74 , B01J35/00 , B01J35/02
Abstract: A NOx absorber catalyst for treating an exhaust gas from a lean burn engine. The NOx absorber catalyst comprises a molecular sieve catalyst comprising a noble metal and a molecular sieve, wherein the molecular sieve contains the noble metal; an oxygen storage material for protecting the molecular sieve catalyst; and a substrate having an inlet end and an outlet end.
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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.
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Patent Agency Ranking
公开(公告)号：US11359530B2
公开(公告)日：2022-06-14
申请号：US15285579
申请日：2016-10-05
Applicant: Johnson Matthey Public Limited Company
Inventor： David Bergeal , Gavin Brown , Andrew Francis Chiffey , Francois Moreau , Matthew O'Brien
Abstract: An exhaust system for treating an exhaust gas produced by a lean burn engine comprising: (i) a NOx absorber catalyst comprising a molecular sieve catalyst disposed on a substrate, wherein the molecular sieve catalyst comprises a noble metal and a molecular sieve, wherein the molecular sieve contains the noble metal; (ii) means for introducing hydrocarbons into the exhaust gas; and (iii) a lean NOx trap; wherein the NOx absorber catalyst is upstream of both the means for introducing hydrocarbons into the exhaust gas and the lean NOx trap.
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公开(公告)号：US10975745B2
公开(公告)日：2021-04-13
申请号：US16517886
申请日：2019-07-22
Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
Inventor： Andrew Francis Chiffey , Jack Corps , Laura Mitchell-Downie , Francois Moreau , Matthew O'Brien
IPC: F01N3/022 , F01N3/08 , F01N13/00 , B01D53/94 , B01J23/656 , B01J29/74 , B01J29/78 , B01J35/04 , B01J37/02 , B01D53/18
Abstract: A NOx absorber catalyst for treating an exhaust gas from a diesel engine. The NOx absorber catalyst comprises a first NOx absorber material comprising a molecular sieve catalyst, wherein the molecular sieve catalyst comprises a noble metal and a molecular sieve, and wherein the molecular sieve contains the noble metal; a second NOx absorber material comprising palladium (Pd) supported on an oxide of cerium; and a substrate having an inlet end and an outlet end.
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公开(公告)号：US10213775B2
公开(公告)日：2019-02-26
申请号：US15285537
申请日：2016-10-05
Applicant: Johnson Matthey Public Limited Company
Inventor： Andrew Francis Chiffey , Jack Corps , Laura Mitchell-Downie , Francois Moreau , Matthew O'Brien
IPC: B01J29/78 , B01J21/04 , B01J21/12 , B01D53/94 , B01J23/656 , B01J29/74 , B01J35/00 , B01J35/02 , B01J23/44 , B01J23/63 , F01N3/08 , F01N13/00
Abstract: A NOx absorber catalyst for treating an exhaust gas from a lean burn engine. The NOx absorber catalyst comprises a molecular sieve catalyst comprising a noble metal and a molecular sieve, wherein the molecular sieve contains the noble metal; an oxygen storage material for protecting the molecular sieve catalyst; and a substrate having an inlet end and an outlet end.
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公开(公告)号：US11759770B2
公开(公告)日：2023-09-19
申请号：US17726686
申请日：2022-04-22
Applicant: Johnson Matthey Public Limited Company
Inventor： Jillian Collier , Francois Moreau , Matthew O'Brien , Paul Richard Phillips , Sanyuan Yang
CPC classification number: B01J29/74 , B01D53/944 , B01D53/9413 , B01D53/9481 , B01J35/04 , F01N3/035 , F01N3/0842 , F01N3/2066 , F01N3/2803 , B01D2255/1021 , B01D2255/1023 , B01D2255/50 , B01D2255/91 , B01D2255/9155 , B01J2229/18 , F01N2370/04
Abstract: A passive NOx absorber for treating an exhaust gas from a diesel engine is described. The passive NOx absorber comprises a first washcoat region comprising a zeolite catalyst, the zeolite catalyst comprising a noble metal and a zeolite having a SAR of 2-15.
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公开(公告)号：US20220339613A1
公开(公告)日：2022-10-27
申请号：US17726686
申请日：2022-04-22
Applicant: Johnson Matthey Public Limited Company
Inventor： Jillian Collier , Francois Moreau , Matthew O'Brien , Paul Richard Phillips , Sanyuan Yang
Abstract: A passive NOx absorber for treating an exhaust gas from a diesel engine is described. The passive NOx absorber comprises a first washcoat region comprising a zeolite catalyst, the zeolite catalyst comprising a noble metal and a zeolite having a SAR of 2-15.
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