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109 条记录 (耗时 0.023 秒)

    Catalytically coated ceramic honeycomb bodies
    22.
    发明授权
    Catalytically coated ceramic honeycomb bodies 有权
    催化涂层陶瓷蜂窝体

    公开(公告)号：US09278347B2

    公开(公告)日：2016-03-08

    申请号：US13594015

    申请日：2012-08-24

    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： B01J21/00 ,  B01J29/00 ,  B01J21/04 ,  B01J23/02 ,  B01J37/02 ,  B01J35/04 ,  B01J35/10 ,  C23C18/02 ,  C23C18/08

    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 for catalytically coating ceramic honeycomb bodies
    23.
    发明授权
    Method for catalytically coating ceramic honeycomb bodies 有权
    催化涂覆陶瓷蜂窝体的方法

    公开(公告)号：US08278236B2

    公开(公告)日：2012-10-02

    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： B01J21/00 ,  B01J29/00

    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。

    Catalytic Soot Filter and Use Thereof in Treatment of Lean Exhaust Gases
    26.
    发明申请
    Catalytic Soot Filter and Use Thereof in Treatment of Lean Exhaust Gases 审中-公开
    催化烟尘过滤器及其在精益排气中的应用

    公开(公告)号：US20090285736A1

    公开(公告)日：2009-11-19

    申请号：US12465141

    申请日：2009-05-13

    申请人： Adolf SCHAFER-SINDLINGER ,  Marcus Pfeifer ,  Ulrich Hackbarth ,  Wilfried Muller ,  Egbert Lox ,  Thomas Kreuzer ,  Roger Staab ,  Michael Hoffmann ,  Jurgen Gieshoff

    发明人： Adolf SCHAFER-SINDLINGER ,  Marcus Pfeifer ,  Ulrich Hackbarth ,  Wilfried Muller ,  Egbert Lox ,  Thomas Kreuzer ,  Roger Staab ,  Michael Hoffmann ,  Jurgen Gieshoff

    IPC分类号： B01D53/94 ,  B01D50/00

    CPC分类号： B01J23/6562 ,  B01D53/944 ,  B01D2255/102 ,  B01D2255/202 ,  B01D2255/204 ,  B01D2255/206 ,  B01D2255/50 ,  B01D2255/908 ,  B01D2257/502 ,  B01D2257/702 ,  B01J23/56 ,  F01N3/0222 ,  F01N3/0253 ,  F01N3/035 ,  F01N2430/085 ,  F01N2510/065 ,  F01N2570/12 ,  F01N2570/16 ,  F02B3/06 ,  F02D41/024 ,  F02D41/025 ,  F02D41/029 ,  F02D41/405 ,  Y02A50/2341 ,  Y02T10/26 ,  Y02T10/44

    摘要： The invention provides a process for reducing the amounts of carbon monoxide, hydrocarbons and soot particles in the lean exhaust gas from an internal combustion engine using a particle filter, wherein the soot particles have a soot ignition temperature TZ and the particle filter is regenerated from time to time by raising the temperature of the particle filter to above the soot ignition temperature and burning the soot particles, wherein the temperature of the filter is increased to the temperature required to initiate soot ignition by burning additional fuel on the catalytic coating when the exhaust gas back pressure reaches a predetermined value. The process is characterised in that the particle filter is provided with a catalytic coating comprising a first group of components for reducing the ignition temperature of soot, said first group of components contains at least one oxygen storage component and at least one platinum group metal selected from the group consisting of platinum, palladium and rhodium. In a preferred embodiment of the process the catalytic coating further comprises a second group of components for oxidising carbon monoxide and hydrocarbons, said second group of components comprises at least a support material selected from the group consisting of aluminium oxide, silicon oxide, titanium oxide, zirconium oxide and zeolite and at least one platinum group metal selected from the group consisting of platinum, palladium and rhodium deposited on said support materials.

    摘要翻译： 本发明提供了一种减少来自使用颗粒过滤器的内燃机的贫废气中的一氧化碳，碳氢化合物和烟灰颗粒的量的方法，其中烟灰颗粒具有烟灰着火温度TZ，并且颗粒过滤器从时间再生 通过将颗粒过滤器的温度升高到烟炱点燃温度以上并燃烧烟灰颗粒，其中过滤器的温度通过在催化涂层上燃烧附加燃料而增加到启动烟灰点火所需的温度 背压达到预定值。 该方法的特征在于，颗粒过滤器设置有包含用于降低烟灰的点燃温度的第一组成分的催化涂层，所述第一组组分含有至少一种储氧组分和至少一种选自以下的铂族金属： 由铂，钯和铑组成的组。 在该方法的优选实施方案中，催化涂层还包含用于氧化一氧化碳和烃的第二组组分，所述第二组组分至少包含选自氧化铝，氧化硅，氧化钛， 氧化锆和沸石以及选自沉积在所述载体材料上的铂，钯和铑中的至少一种铂族金属。

    METHOD FOR THE REACTIVATION OF THERMALLY AGED NITROGEN OXIDE STORAGE CATALYTIC CONVERTERS
    29.
    发明申请
    METHOD FOR THE REACTIVATION OF THERMALLY AGED NITROGEN OXIDE STORAGE CATALYTIC CONVERTERS 有权
    热老化氧化物储存催化转化器的反应方法

    公开(公告)号：US20090131243A1

    公开(公告)日：2009-05-21

    申请号：US11995590

    申请日：2006-07-15

    申请人： Meike Wittrock ,  Ulrich Goebel ,  Thomas Kreuzer ,  Cristina Maria Casapu ,  Jan-Dierk Grunwaldt ,  Marek Maciejewski ,  Alfons Baiker

    发明人： Meike Wittrock ,  Ulrich Goebel ,  Thomas Kreuzer ,  Cristina Maria Casapu ,  Jan-Dierk Grunwaldt ,  Marek Maciejewski ,  Alfons Baiker

    IPC分类号： B01J38/06

    CPC分类号： B01J38/06 ,  B01D53/9409 ,  B01J23/002 ,  B01J23/10 ,  B01J23/63 ,  B01J23/92 ,  B01J23/96 ,  B01J2523/00 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0885 ,  F01N3/103 ,  F01N13/02 ,  F01N2430/08 ,  F01N2550/03 ,  F02B29/0437 ,  F02D41/0055 ,  F02D41/0275 ,  Y02A50/2322 ,  Y02T10/22 ,  B01J2523/25 ,  B01J2523/3712 ,  B01J2523/828

    摘要： Nitrogen oxide storage catalysts are used for removing the nitrogen oxides present in the lean-burn exhaust gas of lean-burn engines. Here, the purifying action is based on the nitrogen oxides being stored in the form of nitrates by the storage material of the storage catalyst during a lean-burn operating phase of the engine and the previously formed nitrates being decomposed in a subsequent rich-burn operating phase of the engine and the nitrogen oxides which are being liberated again being reacted with the reducing exhaust gas constituents over the storage catalyst to form nitrogen, carbon dioxide and water. Storage catalysts are thermally aged by high temperatures. The aging is due to sintering of the catalytically active noble metal components of the catalyst and to formation of compounds of the storage components with the support materials. According to the invention, the formation of compounds of the storage materials can be largely reversed by treatment of the storage material with a gas mixture comprising nitrogen dioxide and/or carbon dioxide and water vapor at temperatures of from 300 to 500° C. The reactivation can be carried out either directly on the vehicle by setting appropriate exhaust gas conditions or during a routine service by removal of the catalyst from the vehicle and treatment with a gas mixture in an appropriate apparatus.

    摘要翻译： 氮氧化物储存催化剂用于除去贫燃发动机的稀燃废气中存在的氮氧化物。 这里，净化作用是基于在发动机的稀薄燃烧操作阶段期间由储存催化剂的储存材料以硝酸盐的形式储存的氮氧化物，并且先前形成的硝酸盐在随后的富燃烧操作中被分解 再次释放的发动机和氮氧化物的相与还原废气成分反应，形成氮气，二氧化碳和水。 储存催化剂通过高温热老化。 老化是由于催化剂的催化活性贵金属组分的烧结以及用载体材料形成储存组分的化合物。 根据本发明，存储材料的化合物的形成可以通过在包含二氧化氮和/或二氧化碳和水蒸汽的气体混合物中在300-500℃的温度下处理储存材料而大大地逆转。再活化 可以直接在车辆上进行，通过设定适当的废气条件或者在例行服务期间通过从车辆中除去催化剂并在合适的装置中用气体混合物进行处理。

    Method for Operating a Nitrogen Oxide Storage Catalytic Converter in a Motor Vechicle with Consideration of Regional Fuel Qualities
    30.
    发明申请
    Method for Operating a Nitrogen Oxide Storage Catalytic Converter in a Motor Vechicle with Consideration of Regional Fuel Qualities 审中-公开
    在考虑区域燃料质量的汽车机器中操作氮氧化物储存催化转化器的方法

    公开(公告)号：US20080314030A1

    公开(公告)日：2008-12-25

    申请号：US12158099

    申请日：2006-11-22

    申请人： Wilfried Mueller ,  Thomas Kreuzer ,  Ulrich Goebel ,  Friedemann Rohr

    发明人： Wilfried Mueller ,  Thomas Kreuzer ,  Ulrich Goebel ,  Friedemann Rohr

    IPC分类号： F01N9/00

    CPC分类号： F02D41/0275 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0885 ,  F01N9/00 ,  F01N11/00 ,  F02D41/0025 ,  F02D41/3076 ,  F02D2200/701 ,  Y02T10/47

    摘要： The fuel qualities for vehicles differ, for example, in Europe on a regional basis. This applies in particular to the sulphur content of the fuel. If vehicles with modern lean engines or with diesel engines which are equipped with nitrogen oxide storage-type catalytic converters in order to reduce the nitrogen oxide content in their exhaust gas pass through regions with a sulphur content in the fuel which is above the sulphur content which is specified for the vehicle, the engine controller will correspondingly frequently initiate desulphurization of the storage-type catalytic converter after the vehicle has been refuelled with this fuel. Any desulphurization entails an increased level of fuel consumption and greater ageing of the catalytic converter. It is proposed to avoid these adverse effects in that in lean motors the engine controller switches to stoichiometric operation in such a case, and in a diesel engine said engine controller prevents the desulphurization. The information about the region in which the vehicle is moving at a particular time can be transmitted to the engine controller by a navigation system.

    摘要翻译： 车辆的燃料质量在欧洲区域不同。 这尤其适用于燃料的硫含量。 如果配备有氮氧化物存储型催化转化器以减少其废气中的氮氧化物含量的现代精益发动机或柴油发动机的车辆通过燃料中硫含量高于硫含量的区域 为车辆指定，发动机控制器将相应地频繁地启动储存型催化转化器在车辆加油之后的脱硫。 任何脱硫都需要增加燃料消耗水平和催化转化器的老化。 建议避免在这种情况下，在稀薄电动机中，发动机控制器切换到化学计量操作的这些不利影响，并且在柴油发动机中，所述发动机控制器防止脱硫。 关于车辆在特定时间移动的区域的信息可以由导航系统发送到发动机控制器。