发明名称 |
EXHAUST GAS PURIFYING CATALYST |
摘要 |
The present invention provides an exhaust gas purification catalyst comprising a base material, and a two or more layered catalyst coating layer, formed on the base material, wherein the two or more layers have upper and lower layers, and wherein the upper layer contains a large amount of noble metal per liter of the base material more than that of the lower layer, and the lower layer contains a large amount of an oxygen storage/release material per liter of the base material more than that of the upper layer. This exhaust gas purification catalyst has more excellent H 2 S purifying performance than conventional catalysts while maintaining purifying performance against NOx and the other exhaust gas components.
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申请公布号 |
EP2045010(A1) |
申请公布日期 |
2009.04.08 |
申请号 |
EP20070744976 |
申请日期 |
2007.06.05 |
申请人 |
CATALER CORPORATION;TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
TAKEUCHI, MICHIHIKO;ORI, HIROTAKA;YOSHIDA, TAKERU;ISHIBASHI, KAZUNOBU;HACHISUKA, ICHIRO |
分类号 |
B01J23/63;B01D53/94;B01J35/10;F01N3/10 |
主分类号 |
B01J23/63 |
代理机构 |
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