公开(公告)号：US11103858B2

公开(公告)日：2021-08-31

申请号：US16273371

申请日：2019-02-12

申请人： Johnson Matthey Public Limited Company

发明人： Andrew Francis Chiffey ,  Jack Corps ,  Laura Mitchell-Downie ,  Francois Moreau ,  Matthew O'Brien

IPC分类号： B01J29/78 ,  B01D53/94 ,  F01N3/08 ,  F01N13/00 ,  B01J21/04 ,  B01J21/12 ,  B01J23/44 ,  B01J23/63 ,  B01J23/656 ,  B01J29/74 ,  B01J35/00 ,  B01J35/02

摘要： 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.

公开(公告)号：US10975745B2

公开(公告)日：2021-04-13

申请号：US16517886

申请日：2019-07-22

申请人： JOHNSON MATTHEY PUBLIC LIMITED COMPANY

发明人： Andrew Francis Chiffey ,  Jack Corps ,  Laura Mitchell-Downie ,  Francois Moreau ,  Matthew O'Brien

IPC分类号： F01N3/022 ,  F01N3/08 ,  F01N13/00 ,  B01D53/94 ,  B01J23/656 ,  B01J29/74 ,  B01J29/78 ,  B01J35/04 ,  B01J37/02 ,  B01D53/18

摘要： 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.

公开(公告)号：US10213775B2

公开(公告)日：2019-02-26

申请号：US15285537

申请日：2016-10-05

申请人： Johnson Matthey Public Limited Company

发明人： Andrew Francis Chiffey ,  Jack Corps ,  Laura Mitchell-Downie ,  Francois Moreau ,  Matthew O'Brien

IPC分类号： B01J29/78 ,  B01J21/04 ,  B01J21/12 ,  B01D53/94 ,  B01J23/656 ,  B01J29/74 ,  B01J35/00 ,  B01J35/02 ,  B01J23/44 ,  B01J23/63 ,  F01N3/08 ,  F01N13/00

摘要： 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.