发明名称 |
COMPOSITIONS UTILISABLES COMME PIEGE A NOx, A BASE DE MANGANESE ET D'UN ALCALIN OU D'UN ALCALINO-TERREUX ET UTILISATION DANS LE TRAITEMENT DES GAZ D'ECHAPPEMENT |
摘要 |
The invention concerns compositions used as NOx trap, based on manganese and an alkaline or an alkaline-earth and their use for treating exhaust gases. Said compositions comprise a carrier and an active phase; and they are characterised in that the active phase is based on manganese and at least another element A selected among alkalines or alkaline-earths, the manganese and element A being chemically bound. Said compositions can be used in a process for treating gases to reduce nitrogen oxide emissions, as NOx traps, said gases being derived from internal combustion engines and in particular diesel engines or lean-burn engines. |
申请公布号 |
FR2791907(B1) |
申请公布日期 |
2002.06.21 |
申请号 |
FR19990004524 |
申请日期 |
1999.04.12 |
申请人 |
RHODIA CHIMIE |
发明人 |
BIRCHEM THIERRY;HEDOUIN CATHERINE;SEGUELONG THIERRY |
分类号 |
F01N3/10;B01D53/56;B01D53/81;B01D53/94;B01J20/06;B01J23/34 |
主分类号 |
F01N3/10 |
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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