发明授权
- 专利标题: Exhaust gas purification catalyst
- 专利标题(中): 废气净化催化剂
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申请号: US14110274申请日: 2012-04-06
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公开(公告)号: US08828900B2公开(公告)日: 2014-09-09
- 发明人: Nobuyuki Takagi , Yuichi Sobue , Hanae Ikeda , Masaya Kamada , Ryoichi Inde
- 申请人: Nobuyuki Takagi , Yuichi Sobue , Hanae Ikeda , Masaya Kamada , Ryoichi Inde
- 申请人地址: JP Toyota-shi, Aichi-ken
- 专利权人: Toyota Jidosha Kabushiki Kaisha
- 当前专利权人: Toyota Jidosha Kabushiki Kaisha
- 当前专利权人地址: JP Toyota-shi, Aichi-ken
- 代理机构: Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
- 优先权: JP2011-086552 20110408
- 国际申请: PCT/JP2012/059559 WO 20120406
- 国际公布: WO2012/137937 WO 20121011
- 主分类号: B01J29/00
- IPC分类号: B01J29/00 ; B01J29/06 ; B01J21/00 ; B01J21/04 ; B01J23/00 ; B01J23/02 ; B01J23/08 ; B01J23/40 ; B01J23/42 ; B01J23/44 ; B01J23/56 ; B01J20/00 ; B01J29/74 ; B01J37/02 ; B01D53/94 ; F01N3/08
摘要:
The exhaust gas purification catalyst according to the present invention has a substrate 54, a lower layer 57 disposed on this substrate 54, and an upper layer 58 disposed on this lower layer 57. The upper layer 58 is provided with a first catalyst and a second catalyst, and the lower layer 57 is provided with a first catalyst. This first catalyst has Al2O3 as a carrier and Pt and Pd as noble metals supported on the Al2O3, while the second catalyst typically has an Al2O3—ZrO2—TiO2 complex oxide as a carrier and has Pd as a noble metal supported on the Al2O3—ZrO2—TiO2 complex oxide. Moreover, the upper layer 58 has a hydrocarbon adsorbent 68.
公开/授权文献
- US20140057776A1 EXHAUST GAS PURIFICATION CATALYST 公开/授权日:2014-02-27
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