发明公开
- 专利标题: EXHAUST GAS PURIFYING CATALYST
- 专利标题(中): 排气净化催化剂
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申请号: EP07744976.7申请日: 2007-06-05
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公开(公告)号: EP2045010A1公开(公告)日: 2009-04-08
- 发明人: TAKEUCHI, Michihiko , ORI, Hirotaka , YOSHIDA, Takeru , ISHIBASHI, Kazunobu , HACHISUKA, Ichiro
- 申请人: Cataler Corporation , Toyota Jidosha Kabushiki Kaisha
- 申请人地址: 7800, Chihama Kakegawa-shi Shizuoka 437-1492 JP
- 专利权人: Cataler Corporation,Toyota Jidosha Kabushiki Kaisha
- 当前专利权人: Cataler Corporation,Toyota Jidosha Kabushiki Kaisha
- 当前专利权人地址: 7800, Chihama Kakegawa-shi Shizuoka 437-1492 JP
- 代理机构: Kuhnen & Wacker
- 优先权: JP2006164900 20060614
- 国际公布: WO2007145152 20071221
- 主分类号: B01J23/63
- IPC分类号: B01J23/63 ; B01D53/94 ; B01J35/10 ; F01N3/10
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.
公开/授权文献
- EP2045010B1 EXHAUST GAS PURIFYING CATALYST 公开/授权日:2011-09-21
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