发明名称 |
Small pore molecular sieve supported copper catalysts durable against lean/rich aging for the reduction of nitrogen oxides |
摘要 |
A method of using a catalyst comprises exposing a catalyst to at least one reactant in a chemical process. The catalyst comprises copper and a small pore molecular sieve having a maximum ring size of eight tetrahedral atoms. The chemical process undergoes at least one period of exposure to a reducing atmosphere. The catalyst has an initial activity and the catalyst has a final activity after the at least one period of exposure to the reducing atmosphere. The final activity is within 30% of the initial activity at a temperature between 200 and 500° C. |
申请公布号 |
GB2507006(B) |
申请公布日期 |
2014.11.19 |
申请号 |
GB20130020065 |
申请日期 |
2010.04.19 |
申请人 |
JOHNSON MATTHEY PUBLIC LIMITED COMPANY |
发明人 |
PAUL JOSEPH ANDERSEN;HAI-YING CHEN;JOSEPH MICHAEL FEDEYKO;ERICH WEIGERT |
分类号 |
B01J29/04;B01D53/94;B01J29/072;B01J29/10;B01J29/14;B01J29/24;B01J29/46;B01J29/56;B01J29/63;B01J29/68;B01J29/83;B01J29/85 |
主分类号 |
B01J29/04 |
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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