发明公开
- 专利标题: EXHAUST GAS PURIFYING CATALYST
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申请号: EP17802602.7申请日: 2017-05-12
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公开(公告)号: EP3466541A1公开(公告)日: 2019-04-10
- 发明人: TAKESUE, Yuki , MURAKAMI, Kyosuke , ONOE, Ryota
- 申请人: Cataler Corporation
- 申请人地址: 7800, Chihama Kakegawa-shi Shizuoka 437-1492 JP
- 专利权人: Cataler Corporation
- 当前专利权人: Cataler Corporation
- 当前专利权人地址: 7800, Chihama Kakegawa-shi Shizuoka 437-1492 JP
- 代理机构: Kramer Barske Schmidtchen Patentanwälte PartG mbB
- 优先权: JP2016103467 20160524
- 国际公布: WO2017204008 20171130
- 主分类号: B01J35/04
- IPC分类号: B01J35/04 ; B01D53/94 ; B01J23/63 ; F01N3/10 ; F01N3/28 ; B01J23/44 ; B01J23/46
摘要:
An exhaust gas purification catalyst of the present invention is provided with a base 10 and a catalyst coat layer 30. The catalyst coat layer is provided with Rh and Pd as noble metal catalysts. Herein Rh is disposed in a first-stage upper layer A and a second-stage upper layer C, and Pd is disposed in the first-stage upper layer A and a first-stage lower layer B, and in a second-stage lower layer D. A mass ratio (A Pd /A Rh ) of Pd to Rh, disposed in first-stage upper layer A is 0.5≤(A Pd /A Rh )≤3.
公开/授权文献
- EP3466541B1 EXHAUST GAS PURIFYING CATALYST 公开/授权日:2020-09-16
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