| 发明名称 |
STAGED REDUCTANT INJECTION FOR IMPROVED NO x? REDUCTION |
| 摘要 |
<p>An external reductant for an SCR vehicular NOx emission control system is selectively injected to SCR catalysts which are only at catalytically active temperatures thereby avoiding reductant absorption in catalytically unactive catalysts and improving conversion response time.</p> |
| 申请公布号 |
EP1129278(B1) |
申请公布日期 |
2003.08.20 |
| 申请号 |
EP19990965765 |
申请日期 |
1999.11.05 |
| 申请人 |
ENGELHARD CORPORATION |
发明人 |
PATCHETT, JOSEPH, A. |
| 分类号 |
F01N3/08;B01D53/86;B01D53/94;F01N3/10;F01N3/20;F01N3/28;(IPC1-7):F01N3/20 |
主分类号 |
F01N3/08 |
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