CATALYZED FILTER FOR TREATING EXHAUST GAS
    7.
    发明申请
    CATALYZED FILTER FOR TREATING EXHAUST GAS 审中-公开
    用于处理排气的催化过滤器

    公开(公告)号:WO2014194229A1

    公开(公告)日:2014-12-04

    申请号:PCT/US2014/040290

    申请日:2014-05-30

    Abstract: Provided is a diesel particulate filter capable of removing soot from an exhaust gas while operating at low backpressure, the filter comprising (a) a wall-flow filter substrate (23) having a mean pore size, an inlet side (30), an outlet side (32), and a porous interior (23) between the inlet and outlet sides; and (b) a catalyst composition (44) coated from the inlet side of the substrate, wherein the catalyst composition has a d5Q particle size distribution, wherein the dso particle size distribution is less than the mean pore size divided by 4.9, and wherein the outlet side is substantially free of a catalyst coating.

    Abstract translation: 本发明提供一种柴油机微粒过滤器,其能够在低背压下操作时从废气中除去烟灰,该过滤器包括(a)具有平均孔径的壁流过滤器基材(23),入口侧(30),出口 (32)和位于入口侧和出口侧之间的多孔内部(23); 和(b)从所述基材的入口侧涂覆的催化剂组合物(44),其中所述催化剂组合物具有d50粒度分布,其中所述dso粒度分布小于平均孔径除以4.9,并且其中 出口侧基本上不含催化剂涂层。

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