发明授权
- 专利标题: Method for preventing the contamination by platinum of an SCR catalyst
- 专利标题(中): 防止SCR催化剂被铂污染的方法
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申请号: US14407725申请日: 2013-06-10
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公开(公告)号: US09492787B2公开(公告)日: 2016-11-15
- 发明人: Frank-Walter Schuetze , Marcus Pfeifer , Michael Schiffer , Martin Symalla , Christoph Hengst
- 申请人: Umicore AG & CO. KG
- 申请人地址: DE Hanau-Wolfgang
- 专利权人: UNICORE AG & CO. KG
- 当前专利权人: UNICORE 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: EP12171948 20120614
- 国际申请: PCT/EP2013/001689 WO 20130610
- 国际公布: WO2013/185900 WO 20131219
- 主分类号: B01J23/42
- IPC分类号: B01J23/42 ; B01J23/52 ; B01J33/00 ; B01D53/94 ; B01J35/00 ; F01N3/20 ; B01J29/072
摘要:
The invention relates to a method for preventing the contamination by platinum of an SCR catalyst in an exhaust-gas treatment system, said system comprising an oxidation catalyst containing platinum on the inflow side of the SCR catalyst. The outflow side of the oxidation catalyst comprises a material zone which removes traces of platinum contained in the exhaust-gas stream.
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