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公开(公告)号:US10213768B2
公开(公告)日:2019-02-26
申请号:US15692021
申请日:2017-08-31
发明人: Guy Richard Chandler , Paul Richard Phillips , Stuart David Reid , Wolfgang Strehlau , Daniel Swallow
IPC分类号: F01N3/10 , B01J23/46 , B01D53/94 , B01J21/04 , B01J23/00 , B01J23/02 , B01J23/10 , B01J23/44 , B01J35/00 , B01J35/04 , B01J35/10 , B01J37/02 , B01J37/08 , F01N3/08 , F01N3/28
摘要: A NOx trap catalyst is disclosed. The NOx trap catalyst comprises a noble metal, a NOx storage component, a support, and a first ceria-containing material. The first ceria-containing material is pre-aged prior to incorporation into the NOx trap catalyst, and may have a surface area of less than 80 m2/g. The invention also includes exhaust systems comprising the NOx trap catalyst, and a method for treating exhaust gas utilizing the NOx trap catalyst.
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公开(公告)号:US10532344B2
公开(公告)日:2020-01-14
申请号:US16273271
申请日:2019-02-12
发明人: Guy Richard Chandler , Paul Richard Phillips , Stuart David Reid , Wolfgang Strehlau , Daniel Swallow
IPC分类号: B01J35/00 , B01J23/46 , F01N3/28 , B01D53/94 , B01J21/04 , B01J23/00 , B01J23/02 , B01J23/10 , B01J23/44 , B01J35/04 , B01J35/10 , B01J37/02 , B01J37/08 , F01N3/08
摘要: A NOx trap catalyst is disclosed. The NOx trap catalyst comprises a noble metal, a NOx storage component, a support, and a first ceria-containing material. The first ceria-containing material is pre-aged prior to incorporation into the NOx trap catalyst, and may have a surface area of less than 80 m2/g. The invention also includes exhaust systems comprising the NOx trap catalyst, and a method for treating exhaust gas utilizing the NOx trap catalyst.
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公开(公告)号:US11179706B2
公开(公告)日:2021-11-23
申请号:US16810913
申请日:2020-03-06
发明人: Gregory Gregori , Paul Phillips , Julian Pritzwald-Stegmann , Stuart David Reid , Wolfgang Strehlau
IPC分类号: B01J29/74 , B01J23/10 , B01J21/04 , B01J23/44 , B01J35/00 , B01J35/04 , B01D53/94 , F01N3/28 , F01N3/20 , F01N3/08 , F01N3/10
摘要: A lean NOx trap catalyst and its use in an emission treatment system for internal combustion engines is disclosed. The lean NOx trap catalyst comprises a first layer for storing nitrogen oxides (NOx) under lean exhaust gas conditions and releasing and/or reducing stored NOx during rich exhaust gas conditions, and a second layer, said second layer comprising a first zone for oxidizing carbon monoxide (CO) and/or hydrocarbons (HC), and a second zone for oxidizing nitric oxide (NO), and a substrate having an inlet end and an outlet end.
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公开(公告)号:US20200282385A1
公开(公告)日:2020-09-10
申请号:US16810913
申请日:2020-03-06
发明人: Gregory Gregori , Paul Phillips , Julian Pritzwald-Stegmann , Stuart David Reid , Wolfgang Strehlau
IPC分类号: B01J29/74 , B01J23/10 , B01J21/04 , B01J23/44 , B01J35/00 , B01J35/04 , B01D53/94 , F01N3/28 , F01N3/08 , F01N3/20
摘要: A lean NOx trap catalyst and its use in an emission treatment system for internal combustion engines is disclosed. The lean NOx trap catalyst comprises a first layer for storing nitrogen oxides (NOx) under lean exhaust gas conditions and releasing and/or reducing stored NOx during rich exhaust gas conditions, and a second layer, said second layer comprising a first zone for oxidizing carbon monoxide (CO) and/or hydrocarbons (HC), and a second zone for oxidizing nitric oxide (NO), and a substrate having an inlet end and an outlet end.
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