发明名称 |
COLD START CATALYST AND ITS USE IN EXHAUST SYSTEMS |
摘要 |
A cold start catalyst is disclosed. The cold start catalyst comprises a zeolite catalyst and a supported platinum group metal catalyst. The zeolite catalyst comprises a base metal, a noble metal, and a zeolite. The supported platinum group metal catalyst comprises one or more platinum group metals and one or more inorganic oxide carriers. The invention also includes an exhaust system comprising the cold start catalyst. The cold start catalyst and the process result in improved NOx storage and NOx conversion, improved hydrocarbon storage and conversion, and improved CO oxidation through the cold start period.
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申请公布号 |
US2012308439(A1) |
申请公布日期 |
2012.12.06 |
申请号 |
US201113150659 |
申请日期 |
2011.06.01 |
申请人 |
CHEN HAI-YING;MULLA SHADAB;JOHNSON MATTHEY PUBLIC LIMITED COMPANY |
发明人 |
CHEN HAI-YING;MULLA SHADAB |
分类号 |
B01D53/34;B01J29/04;B01J29/12;B01J29/22;B01J29/44;B01J29/54;B01J29/62;B01J29/74;B01J29/83 |
主分类号 |
B01D53/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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