公开(公告)号：US06413904B1

公开(公告)日：2002-07-02

申请号：US09417915

申请日：1999-10-13

申请人： Wolfgang Strehlau ,  Ulrich Göbel ,  Rainer Domesle

发明人： Wolfgang Strehlau ,  Ulrich Göbel ,  Rainer Domesle

IPC分类号： B01J2358

CPC分类号： B01D53/9422 ,  B01D2255/1021 ,  B01D2255/1025 ,  B01D2255/202 ,  B01D2255/204 ,  B01D2255/2042 ,  B01D2255/2092 ,  B01D2255/407 ,  B01J23/58 ,  B01J23/63 ,  B01J27/053

摘要： A nitrogen oxide storage catalyst which contains at least one catalyst material and at least one nitrogen oxide storage component from the group of alkali and alkaline earth metals. The nitrogen oxide storage component, after completing catalyst preparation, is present as finely divided barium sulfate, strontium sulfate, a mixture or mixed crystals of the two sulfates, or as their complete or incomplete decomposition product with an average particle size of less than 1 &mgr;m. Barium sulfate and/or strontium sulfate act as feed materials for the active storage component in the storage catalyst according to the invention. As a result of the reductive exhaust gas compositions occurring under normal automobile driving conditions barium sulfate and strontium sulfate decompose to compounds which are able to store nitrogen oxides. This compensates for the loss of active storage components which occurs due to aging. Barium sulfate and/or strontium sulfate may be decomposed during production by means of reductive calcination in order to obtain a high initial loading of the catalyst with storage compounds. In this case, these sulfates are used as auxiliary agents in order to introduce the highest possible concentrations of storage compounds into the storage catalyst.

摘要翻译： 含有至少一种催化剂材料和至少一种来自碱金属和碱土金属组的氮氧化物储存组分的氮氧化物储存催化剂。 完成催化剂制备后，氮氧化物储存组分以细碎的硫酸钡，硫酸锶，两种硫酸盐的混合物或混合物形式存在，或作为其完全或不完全的分解产物，平均粒度小于1um 。 硫酸钡和/或硫酸锶作为根据本发明的储存催化剂中的活性储存组分的进料。 由于在正常的汽车驾驶条件下发生的还原废气组合物的结果是硫酸钡和硫酸锶分解成能够存储氮氧化物的化合物。 这补偿了由于老化而发生的主动存储组件的损失。 硫酸钡和/或硫酸锶可以通过还原煅烧在生产过程中分解，以便用储存化合物获得催化剂的初始负载量。 在这种情况下，这些硫酸盐用作辅助剂，以便将最高可能浓度的储存化合物引入储存催化剂中。

公开(公告)号：US06338831B1

公开(公告)日：2002-01-15

申请号：US09276903

申请日：1999-03-26

申请人： Wolfgang Strehlau ,  Ulrich Göbel ,  Rainer Domesle ,  Egbert Lox ,  Thomas Kreuzer

发明人： Wolfgang Strehlau ,  Ulrich Göbel ,  Rainer Domesle ,  Egbert Lox ,  Thomas Kreuzer

IPC分类号： B01D5350

CPC分类号： B01J20/08 ,  B01D53/508 ,  B01D53/94 ,  B01J20/041 ,  B01J20/28042 ,  B01J20/28057 ,  B01J20/3078 ,  B01J20/3204 ,  B01J20/3236

摘要： A sulfur oxide storage material contains a magnesium-aluminum spinel (MgO.Al2O3) and can be used as a so-called “sulfur trap” to remove sulfur oxides from oxygen-containing exhaust gases of industrial processes. In particular, it can be used for the catalytic purification of exhaust gas from internal-combustion engines to remove the sulfur oxides from the exhaust gas in order to protect the exhaust gas catalysts from sulfur poisoning. The material displays a molar ratio of magnesium oxide to aluminum oxide in the range of over 1.1:1, and the magnesium oxide present in stoichiometric excess is homogeneously distributed in a highly disperse form in the storage material.

摘要翻译： 硫氧化物储存材料含有镁 - 铝尖晶石（MgO·Al 2 O 3），并且可以用作所谓的“硫阱”，以从工业过程的含氧废气中除去硫氧化物。 特别地，其可以用于从内燃机排出的废气的催化净化，以从废气中除去硫氧化物，以保护废气催化剂免受硫中毒。 该材料显示氧化铝与氧化铝的摩尔比在1.1:1以上，以化学计量过量存在的氧化镁以高分散形式均匀地分布在储存材料中。

公开(公告)号：US06220022B1

公开(公告)日：2001-04-24

申请号：US09180112

申请日：1999-08-04

申请人： Wilfried Müller ,  Jürgen Leyrer ,  Rainer Domesle ,  Klaus Ostgathe ,  Egbert Lox ,  Thomas Kreuzer

发明人： Wilfried Müller ,  Jürgen Leyrer ,  Rainer Domesle ,  Klaus Ostgathe ,  Egbert Lox ,  Thomas Kreuzer

IPC分类号： F01N310

CPC分类号： B01D53/9454 ,  Y02T10/22

摘要： A catalyst system for the treatment of exhaust gases from a diesel engine includes a first and a second catalyst reducing catalyst arranged in series in an exhaust gas treatment system. The first catalyst is located near the engine in a region of the exhaust gas treatment system in which the exhaust gas temperature reaches temperatures of more than 200° C. under full engine load. The second catalyst is located further from the engine in a region of the exhaust gas treatment system in which the exhaust gas temperature reaches a maximum of 500° C. under full engine load. The maximum nitrogen oxides reduction in the first catalyst takes place at a lower temperature than the maximum nitrogen oxides reduction in the second catalyst.

摘要翻译： 用于处理来自柴油发动机的废气的催化剂系统包括在废气处理系统中串联布置的第一和第二催化剂还原催化剂。 第一催化剂位于排气处理系统的区域内的发动机附近，其中在全发动机负荷下，废气温度达到超过200℃的温度。 第二催化剂在排气处理系统的一个区域内比发动机更远，其中在全发动机负荷下废气温度达到最大值500℃。 第一催化剂中的最大氮氧化物还原在比第二催化剂中的最大氮氧化物还原更低的温度下进行。

公开(公告)号：US20060154816A1

公开(公告)日：2006-07-13

申请号：US10535589

申请日：2003-11-04

申请人： Rainer Domesle ,  Thomas Kreuzer ,  Egbert Lox

发明人： Rainer Domesle ,  Thomas Kreuzer ,  Egbert Lox

IPC分类号： B01J21/04

CPC分类号： B01J37/0018 ,  B01J35/0006 ,  B01J35/04 ,  B01J35/06 ,  B01J37/0217 ,  F01N2250/02 ,  F01N2330/10

摘要： The invention relates to a process for the coating of a catalyst support with a catalytically active coat using a coating dispersion, the catalyst support containing at least two partial structures which differ in their absorptivity for the coating dispersion. The process is characterised in that the absorptivity of the partial structures is modified relative to one another by precoating of the catalyst support with a material which can be burnt out or with liquid, and the catalytic coat is then applied to the filter body in a known manner, dried and/or calcined.

摘要翻译： 本发明涉及一种使用涂料分散体涂覆具有催化活性涂层的催化剂载体的方法，所述催化剂载体含有至少两种对于涂料分散体的吸收率不同的部分结构。 该方法的特征在于，部分结构的吸收率相对于彼此通过用可燃烧或用液体的材料预涂覆催化剂载体而改变，然后将催化涂层以已知的方式施加到过滤器体上 方式，干燥和/或煅烧。

公开(公告)号：US06710014B2

公开(公告)日：2004-03-23

申请号：US09852151

申请日：2001-05-10

申请人： Rainer Domesle ,  Thomas Kreuzer ,  Egbert Lox

发明人： Rainer Domesle ,  Thomas Kreuzer ,  Egbert Lox

IPC分类号： B01J2104

CPC分类号： B01J37/0215 ,  B01J35/04 ,  Y10T29/49345 ,  Y10T428/24149 ,  Y10T428/2982 ,  Y10T428/2991

摘要： A honeycomb body made from a ceramic material with improved radial pressure resistance that is of cylindrical shape and features a first and a second end face and a cylindrical shell and that is traversed from one end face to the other by axially parallel channels formed by channel walls and distributed across the cross section of the honeycomb body in a regular grid pattern, in which design an outer marginal zone of the honeycomb body, the thickness of which amounts to several channel diameters, encloses a central area. The increase in radial pressure resistance of the honeycomb body is achieved by reinforcing the ceramic material of the cylindrical shell and of the channel walls in the outer marginal zone of the honeycomb body by depositing on or in it one or several inorganic substances for the purpose of increasing its mechanical stability.

摘要翻译： 一种由陶瓷材料制成的蜂窝体，其具有圆柱形形状的具有改进的径向耐压性，并且具有第一和第二端面和圆柱形壳体，并且通过由通道壁形成的轴向平行通道从一个端面横向延伸到另一个端面 并且以规则的格栅图案分布在蜂窝体的横截面上，其中设计为蜂窝体的外边缘区域，其厚度相当于几个通道直径，包围中心区域。 蜂窝体的径向耐压性的增加是通过在蜂窝体的外边缘区域中加载陶瓷材料和蜂窝体的外边缘区域中的通道壁来实现的，其中一个或几个无机物质用于 增加其机械稳定性。

公开(公告)号：US06475951B1

公开(公告)日：2002-11-05

申请号：US09513341

申请日：2000-02-25

申请人： Rainer Domesle ,  Ulrich Göbel ,  Lothar Mussmann ,  Egbert Lox ,  Thomas Kreuzer

发明人： Rainer Domesle ,  Ulrich Göbel ,  Lothar Mussmann ,  Egbert Lox ,  Thomas Kreuzer

IPC分类号： B01J2300

CPC分类号： B01D53/945 ,  B01J23/002 ,  B01J23/58 ,  B01J23/63 ,  B01J37/0205 ,  B01J37/0248 ,  B01J2523/00 ,  Y02T10/22 ,  B01J2523/3712 ,  B01J2523/48

摘要： A powdered catalyst material based on aluminum oxide, which contains at least one basic metal oxide and at least one noble metal from the platinum group of the Periodic Table of Elements in addition to aluminum oxide. The catalyst material is obtainable by loading a support material already stabilized by basic oxides by renewed impregnation with further basic oxides. After drying and calcining this post-impregnated material at temperatures below 800° C., the catalytically active noble metals are also incorporated into the support material by impregnation.

摘要翻译： 基于氧化铝的粉末状催化剂材料，其除了氧化铝之外还含有至少一种碱金属氧化物和至少一种来自元素周期表的铂族的贵金属。 催化剂材料可以通过用另外的碱性氧化物再次浸渍加载已经通过碱性氧化物稳定的载体材料而获得。 在低于800℃的温度下干燥和煅烧该浸渍后材料之后，催化活性的贵金属也通过浸渍掺入载体材料中。

公开(公告)号：US06228292B1

公开(公告)日：2001-05-08

申请号：US09309504

申请日：1999-05-11

申请人： Martin Foerster ,  Andreas Gutsch ,  Rainer Domesle ,  Ralph Kiessling ,  Oliver Stöhr

发明人： Martin Foerster ,  Andreas Gutsch ,  Rainer Domesle ,  Ralph Kiessling ,  Oliver Stöhr

IPC分类号： B29B900

CPC分类号： B01J37/0027 ,  B01J2/00

摘要： A suspension, dispersion or emulsion is introduced into a burner. A two-stage after-treatment is then carried out. The resulting powder can be employed as a catalyst.

摘要翻译： 将悬浮液，分散体或乳液引入燃烧器。 然后进行两阶段后处理。 所得粉末可用作催化剂。

公开(公告)号：US06145303A

公开(公告)日：2000-11-14

申请号：US276131

申请日：1999-03-25

申请人： Wolfgang Strehlau ,  Ulrich Gobel ,  Egbert Lox ,  Wilfried Muller ,  Rainer Domesle

发明人： Wolfgang Strehlau ,  Ulrich Gobel ,  Egbert Lox ,  Wilfried Muller ,  Rainer Domesle

IPC分类号： B01D53/86 ,  B01D53/94 ,  B01J21/16 ,  F01N3/08 ,  F01N3/10 ,  F01N3/20 ,  F01N3/24 ,  F01N3/28 ,  F01N9/00 ,  F01N13/02 ,  F02D41/14 ,  F01N3/00 ,  B01D47/00

CPC分类号： B01D53/9422 ,  B01D53/949 ,  F01N13/009 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0871 ,  B01D2255/102 ,  B01D2255/202 ,  B01D2255/204 ,  B01D2255/2061 ,  B01D2255/2063 ,  B01D2255/91 ,  F01N2340/02 ,  Y02T10/22

摘要： A process is disclosed for operating an exhaust gas treatment unit for an internal combustion engine which is operated with lean normalized air/fuel ratios over most of the operating period. The exhaust gas treatment unit contains a nitrogen oxides storage catalyst with an activity window .DELTA.T.sub.NOX for the storage of nitrogen oxides at normalized air/fuel ratios of greater than 1 and release of the nitrogen oxides at normalized air/fuel ratios of less than or equal to 1 and a sulfur trap, located upstream of the nitrogen oxides storage catalyst, with a sulfur desorption temperature T.sub.S,DeSOx above which the sulfates stored on the sulfur trap are decomposed at normalized air/fuel ratios of less than or equal to 1. The nitrogen oxides contained in the exhaust gas are stored on the nitrogen oxides storage catalyst and the sulfur oxides are stored on the sulfur trap at normalized air/fuel ratios greater than 1 and exhaust gas temperatures T.sub.K within the activity window T.sub.NOX, wherein at the same time the exhaust gas temperature just upstream of the sulfur trap is lower than its sulfur desorption temperature T.sub.S,DeSOx. By cyclic lowering of the normalized air/fuel ratio in the exhaust gas to less than 1 the stored nitrogen oxides are released again from the storage catalyst. After each predetermined number N.sub.1 of nitrogen oxides storage cycles, sulfur is removed from the sulfur trap. This takes place by raising the exhaust gas temperature just upstream of the sulfur trap to above its sulfur desorption temperature T.sub.S,DeSOx and also lowering the normalized air/fuel ratio in the exhaust gas to less than 1.

摘要翻译： 公开了一种用于操作用于内燃机的排气处理单元的方法，该内燃机在大部分操作周期内以精简的归一化空气/燃料比操作。 废气处理单元包含具有活性窗口DELTA TNOX的氮氧化物存储催化剂，用于在标准化的空气/燃料比大于1时储存氮氧化物，并且在标准化的空气/燃料比小于或等于 至1和位于氮氧化物储存催化剂上游的硫捕集器，具有硫解吸温度TS，DeSOx，其上储存在硫阱上的硫酸盐在标准化的空气/燃料比小于或等于1时分解。 废气中含有的氮氧化物被储存在氮氧化物储存催化剂上，硫氧化物以规定的大于1的空气/燃料比和废气温度TK存储在活性窗口TNOX内，其中同时 硫阱的上游排气温度低于其脱硫温度TS，DeSOx。 通过将排气中的归一化空气/燃料比循环降低到小于1，储存的氮氧化物再次从储存催化剂释放。 在氮氧化物存储循环的每个预定数量的N1之后，从硫阱中除去硫。 这通过将硫捕集器正好上游的废气温度提高到高于其硫解吸温度TS，DeSOx并且将排气中的归一化空气/燃料比降至小于1来进行。

公开(公告)号：US5628925A

公开(公告)日：1997-05-13

申请号：US413943

申请日：1995-03-30

申请人： Rainer Domesle ,  Bernd Engler ,  Egbert Lox

发明人： Rainer Domesle ,  Bernd Engler ,  Egbert Lox

IPC分类号： B01J35/04 ,  B01J37/02 ,  B21D47/00 ,  B23K26/26 ,  F01N3/28 ,  B23K26/00

CPC分类号： B23K26/26 ,  B01J35/04 ,  F01N3/281 ,  B23K2201/02

摘要： A method is disclosed for manufacturing a monolithic metal support with a coated, gas-permeable shaped body. The shaped body is formed of one or more smooth and/or corrugated metal foil strips previously coated with a dispersion coating. During or after formation of the shaped body, the metal foil strips are joined by soldering or welding to at least one adjacent metal foil strip or to at least one adjacent layer of the same metal foil strip.

摘要翻译： 公开了一种用于制造具有涂覆的气体可渗透成形体的整体式金属支撑件的方法。 成形体由预先涂覆有分散涂层的一个或多个平滑和/或波纹的金属箔带形成。 在成型体的形成期间或之后，通过焊接或焊接将金属箔带连接到至少一个相邻的金属箔条或至少相邻的金属箔条的相邻层。

公开(公告)号：US4455246A

公开(公告)日：1984-06-19

申请号：US383212

申请日：1982-05-28

申请人： Sabine Schmidt ,  Peter Kleinschmit ,  Rudolf Schwarz ,  Rainer Domesle

发明人： Sabine Schmidt ,  Peter Kleinschmit ,  Rudolf Schwarz ,  Rainer Domesle

IPC分类号： C04B14/06 ,  C04B30/00 ,  C04B30/02 ,  C04B43/00

CPC分类号： C04B30/00 ,  C04B14/06 ,  Y10S428/92

摘要： Heat insulation mixtures are employed both in the form of compacts and in the form of loose ballast. Heat insulating materials which contain an opacifier and thereby are impervious to the radiation which occurs possess extraordinarily good insulating activity. By using quartz powder of a specific particle size spectrum as opacifier, there can be attained optimal insulating properties preferred at high temperatures of use. This type of heat insulating material can be produced by mixing the individual components. It can contain known filler components and binders.

摘要翻译： 绝热混合物既采用压实形式又以松散镇流器的形式使用。 含有遮光剂的绝热材料，因此不利于发生的辐射具有非常好的绝缘活性。 通过使用特定粒径谱的石英粉作为遮光剂，可以获得在使用高温下优选的最佳绝缘特性。 这种绝热材料可以通过混合各个部件来制造。 它可以包含已知的填充剂组分和粘合剂。