发明授权
US09486793B2 Start-up catalyst for use upstream of a gasoline particulate filter
有权
起动催化剂用于汽油微粒过滤器的上游
- 专利标题: Start-up catalyst for use upstream of a gasoline particulate filter
- 专利标题(中): 起动催化剂用于汽油微粒过滤器的上游
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申请号: US14405768申请日: 2013-06-05
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公开(公告)号: US09486793B2公开(公告)日: 2016-11-08
- 发明人: Raoul Klingmann , Joel Despres , Martin Roesch , Joerg-Michael Richter , Stephanie Spiess
- 申请人: Umicore AG & CO. KG
- 申请人地址: DE Hanau-Wolfgang
- 专利权人: UMICORE AG & CO. KG
- 当前专利权人: UMICORE AG & CO. KG
- 当前专利权人地址: DE Hanau-Wolfgang
- 代理机构: Smith, Gambrell & Russell, LLP
- 优先权: EP12171015 20120606
- 国际申请: PCT/EP2013/001644 WO 20130605
- 国际公布: WO2013/182302 WO 20131212
- 主分类号: B01D53/34
- IPC分类号: B01D53/34 ; B01D53/56 ; B01D53/94 ; B01D50/00 ; B01J8/02 ; B01J23/00 ; B01J23/02 ; B01J23/08 ; B01J23/10 ; B01J23/40 ; B01J23/42 ; B01J23/44 ; B01J23/56 ; B01J21/04 ; B01J35/04 ; B01J37/02 ; B01J35/00 ; B01J23/63 ; B01J23/46
摘要:
The present invention describes a double-layer three-way catalyst on an inert catalyst support comprising a first layer in direct contact with the inert catalyst support, comprising active alumina, a cerium/zirconium mixed oxide and palladium and a second layer applied to the first layer and in direct contact with the exhaust gas to be purified, comprising active alumina and rhodium, characterized in that the second layer is free of cerium and cerium containing materials, the use of such catalyst for cleaning the exhaust gases of a motor vehicle equipped with a gasoline engine and an exhaust gas treatment system comprising such catalyst up stream of a gasoline particulate filter (GPF).
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