发明名称 |
CATALYST ARRANGEMENT AND METHOD OF PURIFYING THE EXHAUST GAS OF INTERNAL COMBUSTION ENGINES OPERATED UNDER LEAN CONDITIONS |
摘要 |
The invention relates to a catalyst arrangement for purifying the exhaust gases of internal combustion engines operated under lean conditions. It is proposed that a thinwalled, porous carrier be coated on one side with a nitrogen oxide storage catalyst and on the other side with an SCR catalyst. When the exhaust gas is passed through the catalytic coatings and the support material, a significant improvement in the nitrogen oxide conversion is achieved compared to a series arrangement of the catalysts on separate carriers. Wall flow filters have been found to be useful as thin-walled carriers.
|
申请公布号 |
KR20060069445(A) |
申请公布日期 |
2006.06.21 |
申请号 |
KR20067002428 |
申请日期 |
2004.07.29 |
申请人 |
UMICORE AG & CO. KG |
发明人 |
PFEIFER MARCUS;SOEGER NICOLA;DEMEL YVONNE;KUHL TOBIAS;SPURK PAUL CHRISTIAN;GIESHOFF JURGEN;LOX EGBERT;KREUZER THOMAS |
分类号 |
F01N3/08;B01D53/94;F01N3/035;F01N3/28 |
主分类号 |
F01N3/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|