- 专利标题: Catalytically active particulate filter
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申请号: US16954299申请日: 2018-12-14
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公开(公告)号: US11623179B2公开(公告)日: 2023-04-11
- 发明人: Jan Schoenhaber , Naina Deibel , Martin Roesch , Stephanie Spiess
- 申请人: UMICORE AG & CO. KG
- 申请人地址: DE 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 Wolfgang
- 代理机构: Smith, Gambrell & Russell, LLP
- 优先权: EP17208614 20171219
- 国际申请: PCT/EP2018/084888 WO 20181214
- 国际公布: WO2019/121367 WO 20190627
- 主分类号: B01J21/04
- IPC分类号: B01J21/04 ; B01J21/06 ; B01J21/08 ; B01J21/12 ; B01J23/42 ; B01J23/44 ; B01J23/46 ; B01J23/63 ; B01D53/94 ; F01N3/035 ; F01N3/10
摘要:
The present invention relates to a particulate filter which comprises a wall-flow filter of length L and two different catalytically active coatings Y and Z, wherein the wall-flow filter comprises channels E and A that extend in parallel between a first and a second end of the wall-flow filter and are separated by porous walls which form the surfaces OE and OA, respectively, and wherein the channels E are closed at the second end and the channels A are closed at the first end, and wherein the coatings Y and Z have the same oxygen storage components and the same carrier materials for noble metals. The invention is characterized in that the coating Y is located in the channels E on the surfaces OE and the coating Z is located in the channels A on the surfaces OA.
公开/授权文献
- US20210086134A1 CATALYTICALLY ACTIVE PARTICULATE FILTER 公开/授权日:2021-03-25
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