APPARATUS FOR TREATING DIESEL EXHAUST GASES
    5.
    发明申请
    APPARATUS FOR TREATING DIESEL EXHAUST GASES 审中-公开
    用于处理柴油机排气的装置

    公开(公告)号:US20090320456A1

    公开(公告)日:2009-12-31

    申请号:US12304847

    申请日:2007-01-02

    Abstract: The invention relates to an apparatus for treating diesel exhaust gases including a diesel particulate filter. The invention also relates to a method for manufacturing and using such an apparatus. A particulate filter (DFP) according to the invention has a coating, there is used a sol having the average particle size of the particles below 100 nm, preferably below 50 nm and that a particulate oxidation and that a particulate oxidation catalyst (POC) has been connected in front of the particulate filter in relation to the flow direction of the exhaust gas, which includes at least partially open channels for leading the exhaust gas.

    Abstract translation: 本发明涉及一种用于处理柴油机废气的设备,包括柴油机微粒过滤器。 本发明还涉及一种制造和使用这种装置的方法。 根据本发明的颗粒过滤器(DFP)具有涂层,使用具有低于100nm,优选低于50nm的颗粒的平均粒径的溶胶,并且颗粒氧化和颗粒氧化催化剂(POC)具有 相对于排气的流动方向连接在颗粒过滤器的前方,废气的流动方向包括用于引导废气的至少部分开放的通道。

    Adsorbent catalyst
    9.
    发明授权
    Adsorbent catalyst 有权
    吸附剂催化剂

    公开(公告)号:US06818582B2

    公开(公告)日:2004-11-16

    申请号:US09828898

    申请日:2001-04-10

    Applicant: Teuvo Maunula

    Inventor: Teuvo Maunula

    Abstract: An adsorbent catalyst for reducing the amounts of nitrogen oxides, hydrocarbons and carbon monoxide contained in exhaust or combustion gases, which catalyst adsorbs nitrogen oxides, when the exhaust or combustion gases contain in excess of oxygen, and liberates and reduces the adsorbed nitrogen oxides, when the gases contain oxygen in stoichiometric amounts or less, which adsorbent catalyst include a porous support material the surface area of which is large and which contains at least the following: a first catalytic metal, which is preferably Pt, a first NOx adsorbent, which preferably contains at least one of the following metals: Ba and Sr, a second NOx adsorbent, which preferably contains at least one of the following metals: La and Y, and a redox NOx adsorbent, which preferably contains at least one of the following metals: Ce, Zr, Ti, Nb, Mn, Pr, Nd, Sm, Eu and G. The invention also relates to methods for reducing the amounts of nitrogen oxides, hydrocarbons and carbon monoxide contained in exhaust or combustion gases.

    Abstract translation: 一种用于减少废气或燃烧气体中所含的氮氧化物,烃和一氧化碳的量的吸附剂催化剂,当废气或燃烧气体含有超过氧气时,催化剂吸附氮氧化物,并释放和减少吸附的氮氧化物,当 气体含有化学计量量或更少的氧,该吸附剂催化剂包括其表面积大且至少包含以下物质的多孔载体材料:优选Pt的第一催化金属,第一NOx吸附剂,其优选地 含有以下金属中的至少一种:Ba和Sr,第二NOx吸附剂,其优选含有以下金属中的至少一种:La和Y,以及优选含有以下金属中的至少一种的氧化还原NOx吸附剂: Ce,Zr,Ti,Nb,Mn,Pr,Nd,Sm,Eu和G.本发明还涉及减少氮氧化物,烃和一氧化碳 包含在排气或燃烧气体中。

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