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    METHOD AND DESULFURIZING NITROGEN OXIDE STORAGE CATALYSTS IN THE EXHAUST GAS SYSTEM OF A LEAN MIX ENGINE
    54.
    发明申请
    METHOD AND DESULFURIZING NITROGEN OXIDE STORAGE CATALYSTS IN THE EXHAUST GAS SYSTEM OF A LEAN MIX ENGINE 审中-公开
    炼油发动机排气系统中氮氧化物储存催化剂的方法与脱硫

    公开(公告)号：US20100064665A1

    公开(公告)日：2010-03-18

    申请号：US12520606

    申请日：2007-12-19

    申请人： Stephan Eckhoff ,  Susanne Philipp ,  Wilfried Mueller ,  Thomas Kreuzer

    发明人： Stephan Eckhoff ,  Susanne Philipp ,  Wilfried Mueller ,  Thomas Kreuzer

    IPC分类号： F01N9/00 ,  F01N3/00 ,  F01N3/10

    CPC分类号： F02D41/028 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0885 ,  F01N3/101 ,  F01N3/106 ,  F01N3/2033 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/04 ,  F01N13/107 ,  F01N2430/06 ,  F01N2430/08 ,  F01N2430/085 ,  F01N2560/025 ,  F01N2560/14 ,  F02D41/0082 ,  Y02T10/22 ,  Y02T10/26

    摘要： Lean burn engines require an exhaust gas system comprising nitrogen oxide storage catalysts for removal of nitrogen oxides from their exhaust gases. When the lean burn engine is operated with a sulphur-containing exhaust gas, the storage catalysts have to be desulphurized from time to time. During the desulphurization, there is the risk of high pollutant emissions. These emissions can be reduced when the cylinders of the lean burn engine are combined in two groups which release their exhaust gas to two assigned exhaust legs, in each of which is arranged at least one nitrogen oxide storage catalyst. The two exhaust legs are combined beyond the storage catalysts to form a common exhaust leg which contains a catalyst which possesses a three-way function under stoichiometric conditions. The two nitrogen oxide storage catalysts are desulphurized offset in time with respect to one another. While rich exhaust gas at a high temperature flows through one storage catalyst for desulphurization, lean exhaust gas flows through the second storage catalyst, in such a way that the combined exhaust gas is of stoichiometric composition over the entire desulphurization period. Under the stoichiometric conditions, the catalyst with three-way function is capable of converting hydrocarbons, carbon monoxide and nitrogen oxides to harmless components.

    摘要翻译： 精益燃烧发动机需要包括用于从其废气中除去氮氧化物的氮氧化物储存催化剂的废气系统。 当贫燃机用含硫废气进行操作时，必须不时地将储存催化剂脱硫。 在脱硫过程中，存在污染物排放高的风险。 当贫燃发动机的气缸组合成两组时，可以减少这些排放物，这两组燃烧器将废气排放到两个分配的排气支路，每个排放管排列有至少一个氮氧化物储存催化剂。 两个排气支路结合在储存催化剂之外以形成一个共同的排气支管，它包含一个在化学计量条件下具有三通功能的催化剂。 两种氮氧化物储存催化剂相对于彼此在时间上被脱硫。 虽然高温下的废气通过一个用于脱硫的储存催化剂流过，贫废气以这样的方式流过第二储存催化剂，使得组合废气在整个脱硫周期内具有化学计量组成。 在化学计量条件下，具有三向功能的催化剂能够将碳氢化合物，一氧化碳和氮氧化物转化为无害成分。

    METHOD FOR CATALYTICALLY COATING CERAMIC HONEYCOMB BODIES
    55.
    发明申请
    METHOD FOR CATALYTICALLY COATING CERAMIC HONEYCOMB BODIES 有权
    陶瓷蜂窝体材料催化涂层方法

    公开(公告)号：US20090305874A1

    公开(公告)日：2009-12-10

    申请号：US12158843

    申请日：2006-11-22

    申请人： Marcus Pfeifer ,  Paul Spurk ,  Markus Koegel ,  Egbert S.J. Lox ,  Thomas Kreuzer

    发明人： Marcus Pfeifer ,  Paul Spurk ,  Markus Koegel ,  Egbert S.J. Lox ,  Thomas Kreuzer

    IPC分类号： B01J29/072 ,  B01J23/30

    CPC分类号： B01J37/0215 ,  B01J35/04 ,  B01J35/10 ,  B01J35/1076 ,  C23C18/02 ,  C23C18/08 ,  Y10T428/24157

    摘要： The invention relates to a process for coating ceramic honeycomb bodies with a coating suspension containing, in a carrier liquid, catalyst components as solids and/or in dissolved form. The honeycomb bodies have parallel flow channels running through them. The walls of the flow channels generally have an open pore structure. To coat the channel walls and in particular also the interior surfaces of the pores with the coating suspension, it is proposed that the flow channels be temporarily alternately closed and the coating suspension be forced through the open pore structure of the channel walls. The coating is subsequently dried and calcined. To close the flow channels, it is possible to use thermally or chemically decomposable or soluble compositions which are decomposed or dissolved either during calcination or by means of a subsequent chemical treatment. The coated honeycomb bodies are preferably used for the purification of exhaust gases from automobiles.

    摘要翻译： 本发明涉及涂覆陶瓷蜂窝体的方法，该涂层悬浮液在载体液体中含有作为固体和/或溶解形式的催化剂组分。 蜂窝体具有平行的流动通道。 流动通道的壁通常具有开孔结构。 为了涂覆通道壁，特别是涂覆悬浮液的孔的内表面，建议将流动通道临时交替地封闭，并且将涂覆悬浮液强制通过通道壁的开孔结构。 随后将涂层干燥并煅烧。 为了封闭流动通道，可以使用在煅烧期间或通过随后的化学处理分解或溶解的热或可分解或可溶性组合物。 涂布的蜂窝体优选用于净化汽车废气。

    Method And Apparatus For Coating A Carrier
    58.
    发明申请
    Method And Apparatus For Coating A Carrier 审中-公开
    涂层载体的方法和装置

    公开(公告)号：US20080118628A1

    公开(公告)日：2008-05-22

    申请号：US10553359

    申请日：2004-04-16

    申请人： Michael Harris ,  Dieter Detterbeck ,  Egbert Lox ,  Thomas Kreuzer

    发明人： Michael Harris ,  Dieter Detterbeck ,  Egbert Lox ,  Thomas Kreuzer

    IPC分类号： B05C11/00 ,  C23C16/52

    CPC分类号： B01J35/04 ,  B01J37/0215 ,  B05D3/0493 ,  B05D7/22

    摘要： This invention relates to a method and a corresponding apparatus for coating open-pored bodies with at least one coating suspension. In particular, the coating suspension has solids and solutes in a liquid medium in a quantity in wet state which is to correspond to at least a required target quantity. The coating operation has a variation in the applied wet coating quantity from one body to the other. The method according to the invention is characterized by the steps of: coating the body with an actual quantity of the coating suspension, which is always larger than the required target quantity taking the variation of the coating operation into account, determining the difference between the actual quantity and the required target quantity, and reducing the difference between actual quantity and target quantity by removing still wet coating suspension.

    摘要翻译： 本发明涉及用至少一种涂层悬浮液涂覆开孔体的方法和相应的装置。 特别地，涂层悬浮液具有在湿状态下的液体介质中的固体和溶质，其至少对应于所需的目标量。 涂布操作具有从一个体到另一个体的涂覆湿涂布量的变化。 根据本发明的方法的特征在于以下步骤：考虑到涂层操作的变化，涂覆实际量的涂覆悬浮液，其总是大于所需目标量，确定实际的 数量和所需目标数量，并通过清除静态湿涂层悬浮液减少实际数量和目标数量之间的差异。

    Particle Filter Provided with Catalytic Coating
    59.
    发明申请
    Particle Filter Provided with Catalytic Coating 审中-公开
    带有催化涂层的颗粒过滤器

    公开(公告)号：US20080026141A1

    公开(公告)日：2008-01-31

    申请号：US11628657

    申请日：2005-06-04

    申请人： Marcus Pfeifer ,  Rainer Domesle ,  Nicola Soeger ,  Christian Kuehn ,  Roger Staab ,  Thomas Kreuzer

    发明人： Marcus Pfeifer ,  Rainer Domesle ,  Nicola Soeger ,  Christian Kuehn ,  Roger Staab ,  Thomas Kreuzer

    IPC分类号： B01D53/94 ,  B01J35/00 ,  B01J37/02 ,  B05D1/12 ,  F01N3/28

    CPC分类号： B01D53/944

    摘要： The invention relates to particle filters having an open pore structure for separating particles from fluids, which, for modification of their properties or for treatment of the fluid to be filtered, are provided with additional metal oxides or mixed metal oxides and optionally with further catalytically active components. In particular, the invention relates to particle filters treated with a catalytically active material, which is used for the treatment of the waste gases from combustion processes, in particular for the treatment of the exhaust gases of internal combustion engines. By impregnation of the filter bodies in a solution of a metal oxide sol or a mixed metal oxide sol, the preformed sol particles are deposited on the pore surfaces. Consequently, catalytic activations of the filter with good temperature stability in combination with a moderate increase in the exhaust gas back-pressure are possible.

    摘要翻译： 本发明涉及具有用于从流体中分离颗粒的开孔结构的颗粒过滤器，为了改变其性能或处理待过滤的流体，提供另外的金属氧化物或混合金属氧化物，并且任选具有进一步的催化活性 组件。 特别地，本发明涉及用催化活性材料处理的颗粒过滤器，其用于处理来自燃烧过程的废气，特别是用于处理内燃机的废气。 通过在金属氧化物溶胶或混合金属氧化物溶胶的溶液中浸渍过滤体，预先形成的溶胶颗粒沉积在孔表面上。 因此，具有良好的温度稳定性的过滤器的催化活化与废气背压的适度增加相结合是可能的。