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    Oxidation catalyst with low CO and HC light-off and systems and methods
    51.
    发明授权
    Oxidation catalyst with low CO and HC light-off and systems and methods 有权
    低CO和HC关闭的氧化催化剂和系统和方法

    公开(公告)号：US07947238B2

    公开(公告)日：2011-05-24

    申请号：US12643614

    申请日：2009-12-21

    申请人： Michel Deeba

    发明人： Michel Deeba

    IPC分类号： B01D53/94 ,  B01J23/44

    CPC分类号： B01D53/944 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/206 ,  B01D2255/407 ,  B01D2255/502 ,  B01D2255/9022 ,  B01D2255/9025 ,  B01D2255/912 ,  B01D2258/012 ,  B01J21/066 ,  B01J23/63 ,  B01J29/082 ,  B01J29/084 ,  B01J29/40 ,  B01J29/7007 ,  B01J29/85 ,  B01J29/89 ,  B01J35/023 ,  B01J35/04 ,  B01J37/0244 ,  B01J37/0246 ,  B01J37/0248 ,  B01J37/10 ,  Y02A50/2341

    摘要： An oxidation catalyst for the treatment of exhaust gas emissions, such as the oxidation of unburned hydrocarbons (HC), and carbon monoxide (CO) and the reduction of nitrogen oxides (NOx) from a diesel engine and methods of exhaust gas treatment are disclosed. More particularly, a washcoat composition is disclosed comprising at least two washcoat layers, a first washcoat comprising palladium supported on ceria-zirconia and ceria-zirconia-alumina and a second washcoat containing one or more of platinum and palladium and one or more hydrocarbon storage components. An undercoat may also be included in the catalyst. Also disclosed are method of exhaust gas treatment and diesel exhaust gas treatment systems that include the oxidation catalyst and a downstream soot filter.

    摘要翻译： 公开了一种用于处理废气排放的氧化催化剂，例如未燃烧的烃（HC）的氧化和一氧化碳（CO）以及来自柴油发动机的氮氧化物（NOx）的还原和废气处理方法。 更具体地，公开了一种修补基面涂料组合物，其包含至少两个修补基面涂层，第一修补基面涂层，其包含负载在二氧化铈 - 氧化锆和二氧化铈 - 氧化锆 - 氧化铝上的钯和含有一种或多种铂和钯的第二修补基面涂层和一种或多种烃储存组分 。 催化剂中也可以包含底涂层。 还公开了包括氧化催化剂和下游烟灰过滤器的废气处理方法和柴油机废气处理系统。

    Multilayered Catalyst Compositions
    55.
    发明申请
    Multilayered Catalyst Compositions 有权
    多层催化剂组合物

    公开(公告)号：US20090041643A1

    公开(公告)日：2009-02-12

    申请号：US11836397

    申请日：2007-08-09

    申请人： Michel Deeba ,  Stephan Siemund ,  Xinyi Wei

    发明人： Michel Deeba ,  Stephan Siemund ,  Xinyi Wei

    IPC分类号： B01D53/34

    CPC分类号： F01N3/2803 ,  B01D53/9445 ,  B01D53/945 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/9025 ,  B01D2255/908 ,  F01N2370/02 ,  F01N2510/0682 ,  Y02A50/2341 ,  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. 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。 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。

    Apparatus and method for vehicle emissions control
    59.
    发明授权
    Apparatus and method for vehicle emissions control 失效
    车辆排放控制装置和方法

    公开(公告)号：US06568179B2

    公开(公告)日：2003-05-27

    申请号：US09797236

    申请日：2001-03-01

    申请人： Michel Deeba

    发明人： Michel Deeba

    IPC分类号： F01N300

    CPC分类号： F01N3/2046 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0885 ,  F01N3/101 ,  F01N13/009 ,  F01N13/0093 ,  F01N2410/00 ,  F01N2570/04 ,  Y02A50/2324 ,  Y02T10/22 ,  Y02T10/24 ,  Y02T10/26

    摘要： An apparatus and method for vehicle emissions control are disclosed. More particularly, an apparatus and method for insuring that the temperature of a vehicle's exhaust gas stream entering the underfloor catalytic converter during engine operation does not exceed the temperature at which the capability of the multi-functional catalyst in the converter to absorb NOx starts to fall off. A first temperature sensor is provided in the exhaust outlet leading from the exhaust manifold of the engine and a second temperature sensor is provided in the catalytic converter. The catalytic converter contains a multi-functional catalyst such as a three-way conversion catalyst and a NOx trap as well as a NOx sensor at its outlet for sensing when NOx breakthrough is occurring. The sensors transmit their readings to a controller which transmits signal to a proportional valve located in the exhaust outlet downstream of the first temperature sensor. In response to the signals received from the controller, the proportional valve divides the exhaust gas stream received from the engine exhaust manifold into a first stream in communication with the catalytic converter and a second stream in communication with a heat exchanger. Any stream exiting the heat exchanger is then blended with the non-heat exchanged stream and the blended stream is passed into the catalytic converter. The amount of the exhaust gas stream in the first conduit will vary from that in the second conduit such that the temperature entering the catalytic converter is maintained in the range of about 300 to about 600° C. during the lean mode operation of the engine and further such that the multi-functional catalyst is periodically purged of NOx and/or SOx.

    摘要翻译： 公开了一种用于车辆排放控制的装置和方法。 更具体地，涉及一种用于确保在发动机运转期间进入地板下催化转化器的车辆的废气流的温度不超过转化器中的多功能催化剂吸收NOx的能力开始下降的温度的装置和方法 关闭 第一温度传感器设置在从发动机的排气歧管引出的排气出口中，并且第二温度传感器设置在催化转化器中。 催化转化器包含多功能催化剂，例如三元转化催化剂和NOx捕集器，以及在其出口处的NOx传感器，用于在发生NOx突破时感测。 传感器将其读数传送到控制器，该控制器将信号传输到位于第一温度传感器下游的排气出口中的比例阀。 响应于从控制器接收的信号，比例阀将从发动机排气歧管接收的废气流分成与催化转化器连通的第一流和与热交换器连通的第二流。 然后将离开热交换器的任何物流与未热交换的流混合，并将混合的物流进入催化转化器。 第一导管中的废气流的量将与第二导管中的排气流量不同，使得在发动机的稀薄模式运行期间进入催化转化器的温度保持在约300至约600℃的范围内， 进一步使得多功能催化剂周期性地清除NOx和/或SOx。

    Multi-zoned catalytic trap and methods of making and using the same
    60.
    发明授权
    Multi-zoned catalytic trap and methods of making and using the same 有权

    公开(公告)号：US06375910B1

    公开(公告)日：2002-04-23

    申请号：US09527910

    申请日：2000-03-17

    申请人： Michel Deeba ,  Uwe Dahle ,  Stefan Brandt

    发明人： Michel Deeba ,  Uwe Dahle ,  Stefan Brandt

    IPC分类号： B01D5394

    CPC分类号： B01J23/63 ,  B01D53/9422 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2022 ,  B01D2255/2027 ,  B01D2255/2042 ,  B01D2255/9022 ,  B01D2255/903 ,  B01D2258/012 ,  B01J23/58 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0242 ,  B01J37/0244 ,  B01J37/0248 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/2828 ,  F01N2330/00 ,  F01N2330/06 ,  F01N2570/14 ,  F01N2610/03 ,  Y02A50/2344

    摘要： A multi-zoned catalytic trap for conversion of NOx in an exhaust gas stream which emanates from an engine which is operated with periodic alternations between lean, and stoichiometric or rich, conditions. The catalytic trap comprises a first zone, a second zone and, optionally, one or more intermediate zones disposed between the first zone and the second zone. Each of the zones comprises a catalytic trap material coated on a refractory carrier member. In the first zone, the catalytic trap material comprises a refractory metal oxide support having dispersed thereon a palladium catalytic component in the amount of about 30 to about 300 g/ft3, a platinum catalytic component in the amount of 0 to about 100 g/ft3 and a rhodium catalytic component in the amount of 0 to about 10 g/ft3; and a NOx sorbent comprising one or more basic oxygenated compounds of one or more alkaline earth metals and optionally, one or more basic oxygenated compounds of one or more alkali metals. In the second zone, the catalytic trap material comprises a refractory metal oxide support having dispersed thereon a palladium catalytic component in the amount of 0 to about 50 g/ft3, a platinum catalytic component in the amount of about 10 to about 100 g/ft3 and a rhodium catalytic component in the amount of about 5 to about 20 g/ft3; and a NOx sorbent comprising one or more basic oxygenated compounds of one or metals selected from the group consisting of alkali metals and alkaline earth metals. In the optional zone(s), the catalytic trap material comprises a refractory metal oxide support having dispersed thereon a palladium catalytic component in the amount of about 25 to about 75 g/ft3, a platinum catalytic component in the amount of about 5 to about 30 g/ft3 and a rhodium catalytic component in the amount of 0 to about 10 g/ft3; and a NOx sorbent comprising one or more basic oxygenated compounds of one or metals selected from the group consisting of alkali metals and alkaline earth metals.