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    Catalytically active particulate filter
    2.
    发明授权
    Catalytically active particulate filter 有权

    公开(公告)号：US11179676B2

    公开(公告)日：2021-11-23

    申请号：US16954305

    申请日：2018-12-14

    申请人： UMICORE AG & CO. KG

    发明人： Jan Schoenhaber ,  Naina Deibel ,  Martin Roesch ,  Stephanie Spiess ,  Meike Gotthardt ,  Nicole Schichtel

    IPC分类号： B01D53/94 ,  B01J23/63 ,  B01J35/00 ,  B01J35/04 ,  F01N3/10 ,  F01N3/28 ,  B01J23/10 ,  B01J23/46 ,  B01J21/06 ,  F01N3/035

    摘要： The invention relates to a particulate filter for removing particles, carbon monoxide, hydrocarbons and nitrogen oxides out of the exhaust gas of combustion engines operated with stoichiometric air/fuel mixture, comprising a wall flow filter with length L and a coating Z, wherein the wall flow filter includes channels E and A which extend in parallel between a first and a second end of the wall flow filter and are separated by porous walls, which form surfaces OE or OA, and wherein the channels E are closed at the second end and the channels A are closed at the first end, characterised in that coating Z is located in the porous walls and extends from the first end of the wall flow filter over the entire length L, and includes active aluminum oxide, two different cerium/zirconium/rare earth metal mixed oxides and at least one platinum group metal.

    Catalytically active particulate filter
    4.
    发明授权
    Catalytically active particulate filter 有权

    公开(公告)号：US11623179B2

    公开(公告)日：2023-04-11

    申请号：US16954299

    申请日：2018-12-14

    申请人： UMICORE AG & CO. KG

    发明人： Jan Schoenhaber ,  Naina Deibel ,  Martin Roesch ,  Stephanie Spiess

    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.