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    Gasoline Engine Emissions Treatment Systems Having Particulate Filters
    3.
    发明申请
    Gasoline Engine Emissions Treatment Systems Having Particulate Filters 有权
    具有颗粒过滤器的汽油发动机排放处理系统

    公开(公告)号：US20110252773A1

    公开(公告)日：2011-10-20

    申请号：US13087497

    申请日：2011-04-15

    申请人： Mirko Arnold ,  Stephan Siemund ,  Attilio Siani ,  Knut Wassermann

    发明人： Mirko Arnold ,  Stephan Siemund ,  Attilio Siani ,  Knut Wassermann

    IPC分类号： F01N3/035 ,  B01D53/94

    CPC分类号： F01N3/035 ,  B01D46/2429 ,  B01D53/945 ,  B01D2046/2433 ,  B01D2046/2437 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/407 ,  B01D2255/9037 ,  B01D2255/908 ,  B01D2255/9202 ,  B01D2255/9205 ,  B01D2279/30 ,  B01J23/58 ,  B01J23/63 ,  B01J35/0006 ,  B01J35/023 ,  B01J35/1076 ,  B01J37/0215 ,  F01N3/0821 ,  F01N3/101 ,  F01N3/2066 ,  F01N13/009 ,  F01N13/0097 ,  F01N2510/06 ,  Y02T10/22

    摘要： Provided are exhaust systems and components suitable for use in conjunction with gasoline engines to capture particulates in addition to reducing gaseous emission such as hydrocarbons, nitrogen oxides, and carbon monoxides. Exhaust treatment systems comprising a three-way conversion (TWC) catalyst located on a particulate filters are provided. Coated particle filters having washcoat loadings in the range of 1 to 4 g/ft3 result in minimal impact on back pressure while simultaneously providing TWC catalytic activity and particle trapping functionality to meet increasingly stringent regulations such as Euro 6. Sufficient to high levels of oxygen storage components (OSC) are also delivered on and/or within the filter. The filters can have a coated porosity that is substantially the same as its uncoated porosity. The TWC catalytic material can comprise a particle size distribution such that a first set of particles has a first d90 particle size of 7.5 μm or less and a second set of particles has a second d90 particle size of more than 7.5 μm. Methods of making and using the same are also provided.

    摘要翻译： 提供了适于与汽油发动机结合使用的排气系统和部件，以除了还原气体排放物之外还捕获微粒，例如烃，氮氧化物和一氧化碳。 提供了包括位于微粒过滤器上的三元转化（TWC）催化剂的排气处理系统。 具有1至4g / ft 3范围内的洗涂层负载的涂覆颗粒过滤器对背压产生的影响最小，同时提供TWC催化活性和颗粒捕集功能，以满足越来越严格的规定，如欧6。足够高的氧气储存量 组件（OSC）也在过滤器上和/或内部传送。 过滤器可以具有与其未涂覆的孔隙度基本相同的涂层孔隙率。 TWC催化材料可以包括粒度分布，使得第一组颗粒具有7.5μm或更小的第一d90粒度，并且第二组颗粒具有大于7.5μm的第二d90粒度。 还提供了制备和使用它们的方法。

    Multilayered Catalyst Compositions
    4.
    发明申请
    Multilayered Catalyst Compositions 有权
    多层催化剂组合物

    公开(公告)号：US20100104491A1

    公开(公告)日：2010-04-29

    申请号：US12609622

    申请日：2009-10-30

    申请人： Michel Deeba ,  Stephan Siemund ,  Xinyi Wei ,  Stefan Kotrel ,  Knut Wassermann ,  Glenn Svoboda ,  Harold Rabinowitz

    发明人： Michel Deeba ,  Stephan Siemund ,  Xinyi Wei ,  Stefan Kotrel ,  Knut Wassermann ,  Glenn Svoboda ,  Harold Rabinowitz

    IPC分类号： B01D53/56 ,  B01D53/86

    CPC分类号： B01D53/945 ,  B01D53/9472 ,  B01D53/9477 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/9025 ,  B01D2255/908 ,  F01N3/2803 ,  F01N2370/02 ,  F01N2510/0682 ,  F01N2510/0684 ,  Y02T10/22

    摘要： A layered three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides is disclosed. Engine exhaust treatment system and methods of using the same are also provided. The catalytic material can be provided in layers such that a larger amount of oxygen storage component is provided in a downstream zone as compared to an upstream zone. For example, the upstream zone can be configured to have one, two, or three layers, and the downstream zone can be independently configured to have one, two, or three layers. In one or more embodiments, the catalyst supported on a carrier has three layers, where at least two of the layers are zoned to have an oxygen storage component being present in an upstream zone in an amount that is less than the oxygen storage component present in the downstream zone.

    摘要翻译： 公开了具有同时催化烃和一氧化碳氧化和氮氧化物还原的能力的层状三向转化催化剂。 还提供了发动机废气处理系统及其使用方法。 催化材料可以分层提供，使得与上游区域相比，在下游区域中提供更大量的储氧组分。 例如，上游区域可以被配置为具有一个，两个或三个层，并且下游区域可以被独立地配置成具有一个，两个或三个层。 在一个或多个实施方案中，负载在载体上的催化剂具有三层，其中至少两层被划分为具有存储在上游区中的储氧组分，其量小于存在于 下游区。

    Catalyst Compositions
    5.
    发明申请
    Catalyst Compositions 有权
    催化剂组合物

    公开(公告)号：US20090041645A1

    公开(公告)日：2009-02-12

    申请号：US12014295

    申请日：2008-01-15

    申请人： Knut Wassermann ,  Stephan Siemund ,  Michel Deeba ,  Harold Rabinowitz

    发明人： Knut Wassermann ,  Stephan Siemund ,  Michel Deeba ,  Harold Rabinowitz

    IPC分类号： B01J23/10 ,  B01D53/94 ,  B01J23/44 ,  B01D53/34

    CPC分类号： B01J21/066 ,  B01J23/44 ,  B01J23/63 ,  B01J35/04 ,  B01J37/0244

    摘要： Provided are catalyst composites comprising: a catalytic material on a carrier, the catalytic material comprising a precious metal selected from a palladium component and an oxygen storage component, the oxygen storage component being present in an amount of at least 10% by weight, wherein substantially all of the oxygen storage component is in intimate contact with the palladium component and the catalytic material is effective to substantially simultaneously oxidize carbon monoxide and hydrocarbons and reduce nitrogen oxides. A catalyst composite comprising: a catalytic material on a carrier, the catalytic material comprising a palladium component and a ceria-zirconia composite support, the ceria being present in an amount in the range of 10 to 70% by weight, wherein substantially all of the ceria is in intimate contact with at least a portion of the palladium component. Methods of making and using these catalysts along with systems containing these catalysts are also provided.

    摘要翻译： 提供了催化剂复合材料，其包括：载体上的催化材料，催化材料包含选自钯组分和储氧组分的贵金属，所述储氧组分的存在量为至少10重量％，其中基本上 所有储氧组分与钯组分紧密接触，催化材料有效地基本上同时氧化一氧化碳和烃并还原氮氧化物。 一种催化剂复合材料，包括：在载体上的催化材料，所述催化材料包含钯组分和二氧化铈 - 氧化锆复合载体，所述二氧化铈的存在量为10至70重量％，其中基本上全部 二氧化铈与钯组分的至少一部分紧密接触。 还提供了制备和使用这些催化剂以及含有这些催化剂的体系的方法。

    Catalyst compositions
    8.
    发明授权
    Catalyst compositions 有权
    催化剂组合物

    公开(公告)号：US08038951B2

    公开(公告)日：2011-10-18

    申请号：US12014295

    申请日：2008-01-15

    申请人： Knut Wassermann ,  Stephen Siemund ,  Michel Deeba ,  Harold Rabinowitz

    发明人： Knut Wassermann ,  Stephen Siemund ,  Michel Deeba ,  Harold Rabinowitz

    IPC分类号： B01D50/00 ,  B01D53/34 ,  F01N3/00 ,  F01N3/10 ,  F23J11/00 ,  B01J23/00 ,  B01J23/44 ,  B01J23/42 ,  B01D53/56 ,  B01D53/94 ,  B01J8/02 ,  C01B21/00 ,  C01B23/00 ,  C01B25/00 ,  C01B31/00 ,  C01B33/00 ,  C01B35/00 ,  C01G28/00 ,  C01G30/00

    CPC分类号： B01J21/066 ,  B01J23/44 ,  B01J23/63 ,  B01J35/04 ,  B01J37/0244

    摘要： Provided are catalyst composites comprising: a catalytic material on a carrier, the catalytic material comprising a precious metal selected from a palladium component and an oxygen storage component, the oxygen storage component being present in an amount of at least 10% by weight, wherein substantially all of the oxygen storage component is in intimate contact with the palladium component and the catalytic material is effective to substantially simultaneously oxidize carbon monoxide and hydrocarbons and reduce nitrogen oxides. A catalyst composite comprising: a catalytic material on a carrier, the catalytic material comprising a palladium component and a ceria-zirconia composite support, the ceria being present in an amount in the range of 10 to 70% by weight, wherein substantially all of the ceria is in intimate contact with at least a portion of the palladium component. Methods of making and using these catalysts along with systems containing these catalysts are also provided.

    摘要翻译： 提供了催化剂复合材料，其包括：载体上的催化材料，催化材料包含选自钯组分和储氧组分的贵金属，所述储氧组分的存在量为至少10重量％，其中基本上 所有储氧组分与钯组分紧密接触，催化材料有效地基本上同时氧化一氧化碳和烃并还原氮氧化物。 一种催化剂复合材料，包括：在载体上的催化材料，所述催化材料包含钯组分和二氧化铈 - 氧化锆复合载体，所述二氧化铈的存在量为10至70重量％，其中基本上全部 二氧化铈与钯组分的至少一部分紧密接触。 还提供了制备和使用这些催化剂以及含有这些催化剂的体系的方法。