发明名称 |
Exhaust gas cleaning catalyst with an axially varying precious metal concentration and processes for making the catalyst |
摘要 |
The present invention relates to an exhaust gas cleaning catalyst comprising on a honeycomb carrier a catalytic coating. Said honeycomb carrier has an upstream end and a downstream end and a plurality of flow channels are running from the upstream end to the downstream end. The catalytic coating comprises catalytically active precious metal components of which at least one component exhibits a concentration profile along the honeycomb carrier starting with a low concentration at the upstream end which increases along the flow channels up to a maximum value and then decreases again to the downstream end.
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申请公布号 |
US7906454(B2) |
申请公布日期 |
2011.03.15 |
申请号 |
US20050588943 |
申请日期 |
2005.01.18 |
申请人 |
UMICORE AG & CO. KG |
发明人 |
WOLF ANKE;LINDNER DIETER;FEGER MATTHIAS;ROESCH MARTIN;LOX EGBERT;KREUZER THOMAS |
分类号 |
B01J23/00;B01D50/00;B01D53/34;B01D53/94;B01J21/00;B01J23/40;B01J23/44;B01J23/46;B01J35/00;B01J37/02;B21D39/00;B32B3/12;F01N3/08;F01N3/28 |
主分类号 |
B01J23/00 |
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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