发明申请
US20130095997A1 METHOD FOR PRODUCING CATALYST COMPOSITION, CATALYST COMPOSITION, DIESEL PARTICULATE FILTER USING THE SAME, AND EXHAUST GAS PURIFICATION SYSTEM
有权
制备催化剂组合物的方法，催化剂组合物，使用其的柴油颗粒过滤器和排气净化系统
- 专利标题： METHOD FOR PRODUCING CATALYST COMPOSITION, CATALYST COMPOSITION, DIESEL PARTICULATE FILTER USING THE SAME, AND EXHAUST GAS PURIFICATION SYSTEM
- 专利标题（中）： 制备催化剂组合物的方法，催化剂组合物，使用其的柴油颗粒过滤器和排气净化系统
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申请号： US13805091申请日： 2011-05-10
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公开(公告)号： US20130095997A1公开(公告)日： 2013-04-18
- 发明人: Yoshiyuki Michiaki , Takuma Honda , Shin Hamada
- 申请人： Yoshiyuki Michiaki , Takuma Honda , Shin Hamada
- 申请人地址： JP Tokyo
- 专利权人： DOWA ELECTRONICS MATERIALS CO., LTD.
- 当前专利权人： DOWA ELECTRONICS MATERIALS CO., LTD.
- 当前专利权人地址： JP Tokyo
- 优先权： JP2010-176573 20100805
- 国际申请： PCT/JP2011/060693 WO 20110510
- 主分类号： B01J35/00
- IPC分类号： B01J35/00 ; B01J23/44 ; B01D53/94 ; B01J23/18
摘要：
Provided is a catalyst having the ability to combust PM at relatively low temperatures and having high HC and CO removal (conversion) efficiency even at the above operating temperature. In the catalyst composition, at least one kind of platinum group element selected from Pt, Rh, and Pd is dispersed in and supported by a platinum group-supporting carrier containing at least one kind of element selected from Zr, Al, Y, Si, Bi, Pr, and Tb, and the platinum group-supporting carrier is supported on the surface of a Ce oxide containing Ce as an essential component. The catalyst composition has both PM combustion activity and gas purification activity.
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