公开(公告)号：US20100221161A1

公开(公告)日：2010-09-02

申请号：US12226857

申请日：2008-10-23

申请人： Wolfgang Schneider ,  Lothar Mussmann ,  Gerald Jeske ,  Michael Schiffer ,  Marcus Pfeifer

发明人： Wolfgang Schneider ,  Lothar Mussmann ,  Gerald Jeske ,  Michael Schiffer ,  Marcus Pfeifer

IPC分类号： B01D53/94 ,  F01N3/035 ,  B01D50/00

CPC分类号： F01N3/2066 ,  B01D53/9418 ,  B01D53/944 ,  B01D53/9477 ,  B01D2251/206 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2258/012 ,  B01J23/44 ,  F01N3/035 ,  F01N13/009 ,  F01N2570/14 ,  Y02T10/24

摘要： The invention relates to a special device for the purification of diesel exhaust gases, which device comprises, in the flow direction of the exhaust gas, an oxidation catalyst, a diesel particle filter with catalytically active coating, and, downstream of a device for introducing a reducing agent from an external reducing agent source, an SCR catalyst. The oxidation catalyst and the catalytically active coating of the diesel particle filter contain palladium and platinum. The ratio of the noble metals platinum and palladium in the overall system and on the individual components, oxidation catalyst and catalytically coated diesel particle filter, are coordinated with one another in such a way as to obtain firstly an optimum NO/NO2 ratio in the exhaust gas upstream of the downstream SCR catalyst, and secondly optimum heating and HC conversion behaviour during an active particle filter regeneration.

摘要翻译： 本发明涉及一种用于净化柴油机废气的专用装置，该装置在排气的流动方向上包括氧化催化剂，具有催化活性涂层的柴油颗粒过滤器，以及用于引入 还原剂来自外部还原剂源，SCR催化剂。 柴油颗粒过滤器的氧化催化剂和催化活性涂层含有钯和铂。 整个系统中的贵金属铂和钯与单个组分，氧化催化剂和催化涂层柴油颗粒过滤器的比例彼此协调，以便首先获得排气中最佳的NO / NO 2比例 下游SCR催化剂上游的气体，其次是活性颗粒过滤器再生过程中的最佳加热和HC转化行为。

公开(公告)号：US20100209327A1

公开(公告)日：2010-08-19

申请号：US12307696

申请日：2007-06-06

申请人： Nicola Soeger ,  Lothar Mussmann ,  Ralf Sesselmann ,  Katja Adelmann ,  Wolfgang Schneider

发明人： Nicola Soeger ,  Lothar Mussmann ,  Ralf Sesselmann ,  Katja Adelmann ,  Wolfgang Schneider

IPC分类号： B01D53/56 ,  B01J29/072 ,  B01D53/94

CPC分类号： F01N3/2066 ,  B01D53/9418 ,  B01D2251/2062 ,  B01D2255/102 ,  B01D2255/20707 ,  B01D2255/20723 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/20776 ,  B01D2255/50 ,  B01D2255/911 ,  B01D2255/9202 ,  B01J29/072 ,  B01J35/0006 ,  B01J37/0246 ,  F01N2370/04 ,  F01N2610/02 ,  Y02A50/2325 ,  Y02T10/24

摘要： The reductive removal of nitrogen oxides from the exhaust gas from internal combustion engines operated predominantly under lean conditions takes place in a selective catalytic reduction (SCR) of the nitrogen oxides by means of ammonia or a compound which can be decomposed into ammonia as reducing agent. Conventional SCR catalysts typically have a relatively narrow working temperature window, usually 350° C. to 520° C., in which good nitrogen oxide conversions can be achieved with sufficient selectivity. SCR catalyst formulations whose working window is in the temperature range from 150° C. to 350° C. generally not be used at higher temperatures since they oxidize the ammonia required as reducing 18 agent to nitrogen oxides at above 350° C. To cover the entire exhaust gas temperature range typical of vehicles having been operating internal combustion engines extending from 200° C. to 600° C., it has therefore mostly been necessary to use complicated exhaust gas systems containing a plurality of catalysts having different working temperature ranges. Disclosed is a structured SCR catalyst whose working range extends over a significantly broader temperature window and by means of which complicated exhaust gas units can be considerably simplified, with a saving of components.

摘要翻译： 来自主要在贫条件下运行的内燃机的废气中的氮氧化物的还原除去通过氨或可分解成氨作为还原剂的化合物在氮氧化物的选择性催化还原（SCR）中进行。 常规SCR催化剂通常具有相对窄的工作温度窗口，通常为350℃至520℃，其中可以以足够的选择性实现良好的氮氧化物转化。 工作窗口在150°C至350°C温度范围内的SCR催化剂配方通常不会在较高温度下使用，因为它们会将需要的氨氧化为在高于350°C的氮氧化物所需的氨。 已经运行内燃机的车辆的典型的整个排气温度范围从200℃延伸到600℃，因此大多需要使用包含具有不同工作温度范围的多个催化剂的复杂的废气系统。 公开了一种结构化SCR催化剂，其工作范围在明显更宽的温度窗口上延伸，并且借助于这些SCR催化剂可以显着简化复杂的废气单元，同时节省了部件。

公开(公告)号：US5874638A

公开(公告)日：1999-02-23

申请号：US755853

申请日：1996-12-02

申请人： Yves Chauvin ,  Helene Olivier ,  Lothar Mussmann

发明人： Yves Chauvin ,  Helene Olivier ,  Lothar Mussmann

IPC分类号： B01J31/16 ,  C07B61/00 ,  C07C45/50 ,  C07C47/02 ,  C07C47/12

CPC分类号： C07C45/50

摘要： A hydroformylation process for unsaturated compounds such as monoolefins and diolefins is carried out in an ionic medium in which the catalytic species is dissolved, but in which the reaction products (aldehydes) formed are only slightly soluble or are insoluble. The ionic medium is liquid at a temperature below 90.degree. C. and comprises at least one quaternary ammonium and/or phosphonium cation and at least one anion which is preferably selected from the group formed by tetrafluoroborate when the cation is ammonium, hexafluorophosphate, hexafluoroantimonate, hexafluoroarsenate, perfluoroalkylsulphonates, fluorosulphonate, bis-perfluoroalkylsulphonyl amides or dichlorocuprate, tetrachlorocuprate, tetrachloroaluminate, or trichlorozincate. At the end of the reaction, the organic phase is separated out and the polar phase containing the catalyst is used again.

摘要翻译： 用于不饱和化合物如单烯烃和二烯烃的加氢甲酰化方法在其中溶解催化物质的离子介质中进行，但其中形成的反应产物（醛）仅仅是微溶或不溶解的。 离子介质在低于90℃的温度下是液体，并且包含至少一种季铵和/或鏻阳离子和至少一种阴离子，当阳离子是铵，六氟磷酸盐，六氟锑酸盐时，优选选自四氟硼酸盐形成的基团， 六氟砷酸盐，全氟烷基磺酸盐，氟磺酸盐，双全氟烷基磺酰胺或二氯磷酸盐，四氯磷酸盐，四氯铝酸盐或三氯酸锌。 在反应结束时，分离有机相，再次使用含有催化剂的极性相。