Catalyst compositions, catalytic articles, systems and processes using protected molecular sieves
    1.
    发明授权
    Catalyst compositions, catalytic articles, systems and processes using protected molecular sieves 有权
    使用保护的分子筛的催化剂组合物,催化剂,系统和方法

    公开(公告)号:US08980209B2

    公开(公告)日:2015-03-17

    申请号:US14104731

    申请日:2013-12-12

    Abstract: Described are catalyst compositions, catalytic articles, methods of manufacturing catalytic articles and exhaust gas treatment systems and methods that utilize the catalytic articles. The catalyst composition comprises an oxidation catalyst comprising a washcoat layer including a platinum group metal supported on a refractory metal oxide support and porous molecular sieve particles having internal pores, the molecular sieve particles protected by a protecting material selected from an organic wax encapsulating the molecular sieve particles, a polymer encapsulating the molecular sieve particles, an inorganic oxide deposited on the surface of the molecular sieve particles, or an organic compound filling the internal pores of the molecular sieve particles, wherein the protecting material prevents interaction of the molecular sieve particles with the platinum group metal.

    Abstract translation: 描述了催化剂组合物,催化剂制品,催化制品的制造方法和排气处理系统以及利用催化制品的方法。 催化剂组合物包含氧化催化剂,其包含负载在难熔金属氧化物载体上的铂族金属和具有内部孔的多孔分子筛颗粒的修补基面涂层,所述分子筛颗粒由选自包封分子筛的有机蜡保护的材料保护 颗粒,包封分子筛颗粒的聚合物,沉积在分子筛颗粒表面上的无机氧化物或填充分子筛颗粒内孔的有机化合物,其中保护材料防止分子筛颗粒与 铂族金属。

    Catalyst Compositions, Catalytic Articles, Systems And Processes Using Protected Molecular Sieves
    5.
    发明申请
    Catalyst Compositions, Catalytic Articles, Systems And Processes Using Protected Molecular Sieves 有权
    催化剂组合物,催化制品,使用保护分子筛的系统和工艺

    公开(公告)号:US20140170044A1

    公开(公告)日:2014-06-19

    申请号:US14104731

    申请日:2013-12-12

    Abstract: Described are catalyst compositions, catalytic articles, methods of manufacturing catalytic articles and exhaust gas treatment systems and methods that utilize the catalytic articles. The catalyst composition comprises an oxidation catalyst comprising a washcoat layer including a platinum group metal supported on a refractory metal oxide support and porous molecular sieve particles having internal pores, the molecular sieve particles protected by a protecting material selected from an organic wax encapsulating the molecular sieve particles, a polymer encapsulating the molecular sieve particles, an inorganic oxide deposited on the surface of the molecular sieve particles, or an organic compound filling the internal pores of the molecular sieve particles, wherein the protecting material prevents interaction of the molecular sieve particles with the platinum group metal.

    Abstract translation: 描述了催化剂组合物,催化剂制品,催化制品的制造方法和排气处理系统以及利用催化制品的方法。 催化剂组合物包含氧化催化剂,其包含负载在难熔金属氧化物载体上的铂族金属和具有内部孔的多孔分子筛颗粒的修补基面涂层,所述分子筛颗粒由选自包封分子筛的有机蜡保护的材料保护 颗粒,包封分子筛颗粒的聚合物,沉积在分子筛颗粒表面上的无机氧化物或填充分子筛颗粒内孔的有机化合物,其中保护材料防止分子筛颗粒与 铂族金属。

    Molecular Sieve Catalyst Compositions, Catalytic Composites, Systems, And Methods
    8.
    发明申请
    Molecular Sieve Catalyst Compositions, Catalytic Composites, Systems, And Methods 审中-公开
    分子筛催化剂组合物,催化复合材料,系统和方法

    公开(公告)号:US20150367337A1

    公开(公告)日:2015-12-24

    申请号:US14741756

    申请日:2015-06-17

    Abstract: Described is a selective catalytic reduction catalyst comprising a zeolitic framework material of silicon and aluminum atoms, wherein a fraction of the silicon atoms are isomorphously substituted with a tetravalent metal. The catalyst can include a promoter metal such that the catalyst effectively promotes the reaction of ammonia with nitrogen oxides to form nitrogen and H2O selectively over a temperature range of 150 to 650° C. In another aspect, described is a selective catalytic reduction composite comprising an SCR catalyst material and an ammonia storage material comprising a transition metal having an oxidation state of IV. The SCR catalyst material promotes the reaction of ammonia with nitrogen oxides to form nitrogen and H2O selectively over a temperature range of 150° C. to 600° C., and the SCR catalyst material is effective to store ammonia at temperatures of 400° C. and above. A method for selectively reducing nitrogen oxides, and a method for simultaneously selectively reducing nitrogen oxide and storing ammonia are also described. Additionally, an exhaust gas treatment system is also described.

    Abstract translation: 描述了包含硅和铝原子的沸石骨架材料的选择性催化还原催化剂,其中一部分硅原子被四价金属同晶取代。 催化剂可以包括促进剂金属,使得催化剂有效地促进氨与氮氧化物的反应,以在150至650℃的温度范围内选择性地形成氮和H 2。另一方面,描述了选择性催化还原复合材料,其包含 SCR催化剂材料和包含具有IV氧化态的过渡金属的氨储存材料。 SCR催化剂材料促进氨与氮氧化物的反应,在150℃至600℃的温度范围内选择性地形成氮和H2O,SCR催化剂材料在400℃的温度下有效储存氨。 以上。 还描述了选择性还原氮氧化物的方法,以及同时选择性地还原氮氧化物和储存氨的方法。 此外,还描述了废气处理系统。

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