- 专利标题: Exhaust gas purification catalyst
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申请号: US16303338申请日: 2017-05-12
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公开(公告)号: US10960389B2公开(公告)日: 2021-03-30
- 发明人: Yuki Takesue , Kyosuke Murakami , Ryota Onoe
- 申请人: CATALER CORPORATION
- 申请人地址: JP Shizuoka
- 专利权人: CATALER CORPORATION
- 当前专利权人: CATALER CORPORATION
- 当前专利权人地址: JP Shizuoka
- 代理机构: Occhiuti & Rohlicek LLP
- 优先权: JPJP2016-103467 20160524
- 国际申请: PCT/JP2017/018077 WO 20170512
- 国际公布: WO2017/204008 WO 20171130
- 主分类号: B01J23/10
- IPC分类号: B01J23/10 ; B01J23/44 ; B01J23/63 ; B01J35/00 ; B01J35/04 ; F01N3/10 ; B01J37/02
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 (APd/ARh) of Pd to Rh, disposed in first-stage upper layer A is 0.5≤(APd/ARh)≤3.
公开/授权文献
- US20200316579A1 EXHAUST GAS PURIFICATION CATALYST 公开/授权日:2020-10-08
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