发明名称 |
Method of purifying a lean exhaust gas and catalytic system therefor |
摘要 |
A method of purifying the lean exhaust gas of lean mix engines or diesel engines. The exhaust gas is first contacted with a permanent reduction catalyst and subsequently contacted with a nitrogen oxide storage catalyst. This procedure yields a uniformly good conversion of pollutants of the exhaust gases under differing operating conditions both as regards the air ratios and the exhaust gas temperatures.
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申请公布号 |
US6089015(A) |
申请公布日期 |
2000.07.18 |
申请号 |
US19980078415 |
申请日期 |
1998.05.14 |
申请人 |
DEGUSSA-HUELS AKTIENGESELLSCHAFT |
发明人 |
STREHLAU, WOLFGANG;LOX, EGBERT;KREUZER, THOMAS;HOEHNE, JUERGEN |
分类号 |
F01N3/08;B01D53/86;B01D53/94;F01N3/28;(IPC1-7):F01N3/00 |
主分类号 |
F01N3/08 |
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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