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41. 发明授权

US07238639B2 Oxygen storage material based on cerium oxide, a process for its preparation and its use 失效
标题翻译：基于氧化铈的储氧材料，其制备方法及其应用
公开(公告)号：US07238639B2
公开(公告)日：2007-07-03
申请号：US09931162
申请日：2001-08-17
申请人： Lothar Mussmann , Dieter Lindner , Martin Votsmeier , Egbert Lox , Thomas Kreuzer
发明人： Lothar Mussmann , Dieter Lindner , Martin Votsmeier , Egbert Lox , Thomas Kreuzer
IPC分类号： B01J23/00
CPC分类号： B01D53/945 , B01J23/10 , B01J35/1014 , B01J35/1019 , B01J37/03 , B01J37/18 , C01B13/02 , C01B13/0262 , C01B13/0281 , C01F17/0018 , C01P2002/52 , C01P2006/12 , Y02A50/2324 , Y02T10/22
摘要： An oxygen storage material based on cerium oxide with at least one other oxide of the metals silicon and zirconium, wherein the cerium oxide and the other oxides are present in the form of a mixed oxide. The material is obtainable in that hydroxidic precursors of the mixed oxide are first prepared in a manner known per se using a wet-chemical route, these precursors are optionally dried at temperatures between 80 and 300° C. and the dried precursors are then treated under a hydrogen-containing atmosphere at a temperature between 600 and 900° C. for a period of 1 to 10 hours. The reductive thermal treatment endows the material with a greatly improved dynamic behavior as compared with conventional calcination in air.
摘要翻译：一种基于氧化铈与金属硅和锆的至少一种其它氧化物的储氧材料，其中氧化铈和其它氧化物以混合氧化物的形式存在。该材料可以以混合氧化物的氢氧化物前体首先以本身已知的方式使用湿化学途径制备，这些前体任选地在80-300℃的温度下干燥，然后将干燥的前体在在600-900℃的温度下加入含氢气氛1至10小时。与空气中的常规煅烧相比，还原热处理赋予材料大大改善的动态特性。

42. 发明授权

US06342465B1 Process for preparing a catalyst 有权
标题翻译：催化剂的制备方法
公开(公告)号：US06342465B1
公开(公告)日：2002-01-29
申请号：US09205280
申请日：1998-12-04
申请人： Harald Klein , Jürgen Leyrer , Rainer Domesle , Egbert Lox , Thomas Kreuzer
发明人： Harald Klein , Jürgen Leyrer , Rainer Domesle , Egbert Lox , Thomas Kreuzer
IPC分类号： B01J2342
CPC分类号： B01J23/40 , B01J37/0248
摘要： A process for preparing a catalyst which has a catalytically active coating of high surface area finely divided materials and catalytically active components on an inert carrier structure. A powder mixture of the finely divided materials used is impregnated with a solution of precursor compounds of the catalytically active components. By suitable combination of the finely divided materials and the precursor compounds and appropriate management of the impregnation process, a highly dispersed deposition and adsorption of the catalytically active components is ensured on the finely divided materials. Then ai aqueous coating dispersion is produced using the impregnated powder mixture and the carrier structure is coated therewith. The coating is then dried and calcined.
摘要翻译：一种在惰性载体结构上制备具有高表面积细碎材料和催化活性组分的催化活性涂层的催化剂的方法。所使用的细碎材料的粉末混合物用催化活性组分的前体化合物的溶液浸渍。通过精细分散的材料和前体化合物的合适组合以及浸渍过程的适当管理，在精细分散的材料上确保高度分散的催化活性组分的沉积和吸附。然后使用浸渍的粉末混合物制备ai水性涂料分散体，并用其涂覆载体结构。然后将涂层干燥并煅烧。

43. 发明授权

US06180075B2 Exhaust gas catalyst 失效
标题翻译：废气催化剂
公开(公告)号：US06180075B2
公开(公告)日：2001-01-30
申请号：US09056641
申请日：1998-04-08
申请人： Dieter Lindner , Lothar Mussmann , Renee Van Yperen , Thomas Kreuzer , Egbert Lox
发明人： Dieter Lindner , Lothar Mussmann , Renee Van Yperen , Thomas Kreuzer , Egbert Lox
IPC分类号： B01J802
CPC分类号： B01D53/945 , B01J23/63 , B01J23/894 , B01J23/8946 , Y02T10/22
摘要： A single-layered three-way catalytic converter containing palladium as the only catalytically active noble metal, with high activity and heat resistance. The catalyst contains, in addition to finely divided, stabilized aluminum oxide, at least one finely divided cerium/zirconium mixed oxide and optionally finely divided nickel oxide as well as highly dispersed amounts of cerium oxide, zirconium oxide and barium oxide. The palladium is distributed largely uniformly throughout the entire catalyst.
摘要翻译：包含钯作为唯一催化活性贵金属的单层三元催化转化器，具有高活性和耐热性。除了细分散的稳定化的氧化铝之外，催化剂还含有至少一种细碎的铈/锆混合氧化物和任选的细碎的氧化镍以及高分散量的氧化铈，氧化锆和氧化钡。钯在整个催化剂中大部分均匀分布。

44. 发明授权

US06171565B2 Process for the operation of a nitrogen oxides storage catalyst 有权
标题翻译：氮氧化物储存催化剂的操作方法
公开(公告)号：US06171565B2
公开(公告)日：2001-01-09
申请号：US09227589
申请日：1999-01-08
申请人： J{umlaut over (u)}rgen Höhne , Wolfgang Strehlau , Egbert Lox , Thomas Kreuzer
发明人： J{umlaut over (u)}rgen Höhne , Wolfgang Strehlau , Egbert Lox , Thomas Kreuzer
IPC分类号： B01D5356
CPC分类号： B01D53/9445 , B01D53/9495 , B01D2255/91 , F01N3/0842 , F01N3/085 , F01N9/005 , F01N11/00 , F01N11/007 , F01N2550/03 , F01N2570/04 , F01N2570/16 , F01N2900/0422 , F02D41/0275 , F02D41/028 , F02D2200/0806 , F02D2200/0808 , Y02A50/2341 , Y02T10/22 , Y02T10/24 , Y02T10/47
摘要： A process of operating a nitrogen oxides storage catalyst of an exhaust gas treatment system is described. The process relates to the cycling of the normalized air/fuel ratio &lgr;-value of the exhaust gas exiting the engine, in which a lambda value greater than 1 represents oxygen-rich, lean burn conditions in which a sorption phase for the sorption of nitrogen oxides takes place; and in which a lambda value less than 1 represents oxygen-poor, rich burn conditions in which a desorption and conversion phase for the desorption and conversion of nitrogen oxides takes place. The &lgr;-value of the exhaust gas downstream from the storage catalyst is monitored during the desorption and conversion phase to determine the end of the desorption and conversion phase based on the &lgr;-value falling below a predetermined threshold value. Advantages of the process described include the ability to distinguish permanent from temporary damage to the nitrogen oxides storage catalyst, the ability to compensate for the slow deterioration in storage capacity, and the ability to determine when the storage capacity of the catalyst falls below a certain minimum capacity after which the storage catalyst must be either replaced or thermally treated while still installed in the exhaust gas treatment system.
摘要翻译：描述了操作废气处理系统的氮氧化物存储催化剂的方法。该过程涉及离开发动机的废气的归一化空气/燃料比率lambd值的循环，其中大于1的λ值表示富氧的稀燃条件，其中用于吸附氮的吸附相氧化物发生; 并且其中小于1的λ值表示氧贫，富氧燃烧条件，其中发生用于解吸和转化氮氧化物的解吸和转化相。在解吸和转化阶段期间监测从储存催化剂下游排出的废气的羔羊值，以基于羔羊值低于预定阈值确定解吸和转化阶段的结束。所述方法的优点包括将永久物与临时损伤区分为氮氧化物储存催化剂的能力，补偿储存容量缓慢劣化的能力以及确定催化剂的储存容量何时低于某一最低值的能力容量之后，储存催化剂必须被替换或热处理，同时仍然安装在废气处理系统中。

45. 发明授权

US6001318A Process for lowering nitrogen oxide levels in combustion engine exhaust gas 失效
标题翻译：降低内燃机废气中氮氧化物含量的方法
公开(公告)号：US6001318A
公开(公告)日：1999-12-14
申请号：US996215
申请日：1997-12-22
申请人： Hans Van Den Tillaart , Jurgen Leyrer , Egbert Lox , Thomas Kreuzer , Stephan Eckhoff
发明人： Hans Van Den Tillaart , Jurgen Leyrer , Egbert Lox , Thomas Kreuzer , Stephan Eckhoff
IPC分类号： F01N3/22 , B01D53/86 , B01D53/94 , F01N3/20 , F01N3/24 , F01N3/28 , B01D47/00 , B01J8/00 , F01N3/00 , F01N3/10
CPC分类号： B01D53/9409 , B01D53/9495 , F01N2610/03
摘要： A process is disclosed for lowering nitrogen oxide levels in combustion engine exhaust gas by a reduction catalyst and by controlling the exhaust gas temperature upstream from the catalyst to a constant value, at which the catalyst exhibits maximum conversion for nitrogen oxides. It is possible to maintain maximum conversion over a wide range of engine outlet temperatures of the exhaust gas.
摘要翻译：公开了一种通过还原催化剂降低内燃机废气中的氮氧化物含量并通过将催化剂上游的废气温度控制在恒定值的方法，在该值下催化剂表现出氮氧化物的最大转化率。可以在废气的发动机出口温度范围内保持最大转换。

46. 发明授权

US07811969B2 Method for coating a catalyst carrier containing two different partial structures with a catalytically active coating, and catalyst obtained thereby 有权
标题翻译：用催化活性涂层涂覆含有两种不同部分结构的催化剂载体的方法和由此得到的催化剂
公开(公告)号：US07811969B2
公开(公告)日：2010-10-12
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 characterized 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。

47. 发明授权

US07351677B2 Process for regenerating a nitrogen oxides storage catalyst 有权
标题翻译：再生氮氧化物储存催化剂的方法
公开(公告)号：US07351677B2
公开(公告)日：2008-04-01
申请号：US10630303
申请日：2003-07-29
申请人： Friedemann Rohr , Peter Kattwinkel , Stefan D. Peter , Thomas Kreuzer , Egbert Lox
发明人： Friedemann Rohr , Peter Kattwinkel , Stefan D. Peter , Thomas Kreuzer , Egbert Lox
IPC分类号： B01J20/34
CPC分类号： F02D41/0275 , B01D53/9495 , B01D53/96 , F01N3/0885 , F01N2430/06 , F01N2560/026 , Y02T10/20
摘要： The present invention provides a process and a device for regeneration of a nitrogen oxide storage catalyst in the exhaust system of a diesel engine. The process comprises a first and a second regeneration strategy. The first regeneration strategy is applied when the exhaust gas temperature is above a threshold value and comprises changing the air/fuel-ratio from a lean to a rich value during a first regeneration period. The second regeneration strategy is applied when the exhaust gas temperature is below a threshold value and comprises switching the air/fuel-ratio back and forth between lean and rich air/fuel-ratios, forming a sequence of between 2 and 10 rich pulses and between 2 and 10 lean pulses during a second regeneration period.
摘要翻译：本发明提供一种用于在柴油发动机的排气系统中再生氮氧化物存储催化剂的方法和装置。该方法包括第一和第二再生策略。当废气温度高于阈值时，应用第一再生策略，并且包括在第一再生期间将空气/燃料比从贫值改变为浓值。当废气温度低于阈值时，应用第二再生策略，并且包括在稀空燃比之间来回切换空燃比，形成富二脉冲之间的序列，介于在第二再生期间的2和10个贫脉冲。

48. 发明申请

US20060052243A1 Oxygen storage material, process for its preparation and its application in a catalyst 有权
标题翻译：储氧材料，其制备方法及其在催化剂中的应用
公开(公告)号：US20060052243A1
公开(公告)日：2006-03-09
申请号：US11263353
申请日：2005-10-31
申请人： Mamoun Muhammed , Othon Adamopoulos , Tassilo Bog , Lothar Mussmann , Dieter Lindner , Martin Votsmeier , Matthias Feger , Egbert Lox , Thomas Kreuzer
发明人： Mamoun Muhammed , Othon Adamopoulos , Tassilo Bog , Lothar Mussmann , Dieter Lindner , Martin Votsmeier , Matthias Feger , Egbert Lox , Thomas Kreuzer
IPC分类号： B01J23/00 , B01J23/10
CPC分类号： C01G25/00 , B01D53/945 , B01D2255/206 , B01D2255/908 , B01J23/002 , B01J23/10 , B01J37/03 , B01J2523/00 , B82Y30/00 , C01B13/0262 , C01B13/0281 , C01F17/0018 , C01F17/0043 , C01G25/006 , C01P2002/50 , C01P2002/60 , C01P2004/64 , C01P2006/12 , Y02T10/22 , B01J2523/23 , B01J2523/3712 , B01J2523/31 , B01J2523/48 , B01J2523/3706
摘要： An oxygen storage material comprising cerium oxide and at least one second oxide of a metal M1 is disclosed as well as a process for manufacturing the material and the use of this material in an exhaust gas cleaning catalyst. In a preferred embodiment the oxygen storage material comprises particles from a Ce/M1 mixed oxide solid solution coated with an oxide of another metal M2. Metal M1 e.g. can be calcium or zirconium while metal M2 most preferably is aluminum.
摘要翻译：公开了一种包含氧化铈和至少一种金属M 1 O 2的第二氧化物的储氧材料，以及用于制造材料的方法以及在废气清洁催化剂中使用该材料。在优选的实施方案中，储氧材料包含涂覆有另一种金属M 2 O 2的氧化物的Ce / M 1混合氧化物固溶体的颗粒。金属M 1，例如可以是钙或锆，而金属M 2最优选是铝。

49. 发明授权

US06534439B2 Catalyst for reducing nitrogen oxides in oxidizing and reducing atmospheres 失效
标题翻译：在氧化和还原气氛中还原氮氧化物的催化剂
公开(公告)号：US06534439B2
公开(公告)日：2003-03-18
申请号：US09345787
申请日：1999-07-01
申请人： Hans van den Tillaart , Jürgen Leyrer , Wolfgang Strehlau , Egbert Lox , Thomas Kreuzer , Carsten Plog , Renato Andorf , Norbert Markert , Thomas Stengel
发明人： Hans van den Tillaart , Jürgen Leyrer , Wolfgang Strehlau , Egbert Lox , Thomas Kreuzer , Carsten Plog , Renato Andorf , Norbert Markert , Thomas Stengel
IPC分类号： B01J2340
CPC分类号： B01D53/9418 , B01D2255/1028 , B01D2255/504 , B01J23/468 , B01J35/006 , Y02T10/24
摘要： A catalyst for reducing nitrogen oxides in oxidizing and reducing atmospheres which contains iridium on a support material. Silicon dioxide or a dealuminized zeolite in the acid H form with a modulus of more than 20, preferably more than 100, or mixtures thereof are used as support materials. Iridium is deposited on the external surfaces of these support materials with average particle sizes between 10 and 30 nm. The catalyst is particularly suitable for treating exhaust gases from lean-burn gasoline engines or from diesel engines.
摘要翻译：用于在氧化还原气氛中还原氮氧化物的催化剂，其在载体材料上含有铱。酸性H形式的二氧化硅或脱铝沸石的模量大于20，优选大于100，或其混合物用作支撑材料。铱沉积在这些载体材料的外表面上，平均粒径在10和30nm之间。该催化剂特别适用于处理来自稀燃汽油发动机或柴油发动机的废气。

50. 发明授权

US06238525B1 Process for reducing the nitrogen oxides content of exhaust gas from an internal combustion engine 失效
标题翻译：降低来自内燃机的废气的氮氧化物含量的方法
公开(公告)号：US06238525B1
公开(公告)日：2001-05-29
申请号：US09299630
申请日：1999-04-27
申请人： Egbert Lox , Jürgen Gieshoff , Wolfgang Strehlau , Thomas Kreuzer
发明人： Egbert Lox , Jürgen Gieshoff , Wolfgang Strehlau , Thomas Kreuzer
IPC分类号： C01B2100
CPC分类号： F01N3/0842 , B01D53/32 , B01D53/92 , B01D53/9431 , F01N3/0807 , F01N3/0892 , F01N2240/28 , F02B1/04
摘要： A process for reducing the nitrogen oxides content of the exhaust gas from an internal combustion engine includes treating the exhaust gas in an electric gas discharge such that at least one of nitrogen dioxide or nitric acid are formed from nitrogen oxides in the exhaust gas; storing the nitrogen dioxides and/or the nitric acid in the form of nitrates on a nitrogen oxides storage material during phases when the engine operates with a greater than a stoichiometric air/fuel ratio (i.e., the storage phase); decomposing the nitrates to give nitrogen oxides during brief phases when the engine operates with a less than the stoichiometric air/fuel ratio (i.e., the desorption phase); and reducing the nitrogen oxides which are released from the storage material to nitrogen. The nitrogen oxides storage material may be located in an electric gas discharge zone, and the exhaust gas may be passed through the discharge and then over the storage material.
摘要翻译：用于降低来自内燃机的废气的氮氧化物含量的方法包括以排气中的氮氧化物形成至少一种二氧化氮或硝酸的电气放电来处理排气，当发动机以大于化学计量的空气/燃料比（即储存阶段）运转时，在氮氧化物储存材料中将氮氧化物和/或硝酸以硝酸盐的形式储存在相中。当发动机以小于化学计量的空气/燃料比（即，解吸阶段）运行时，在短时间内分解硝酸盐以产生氮氧化物; 并将从储存材料释放的氮氧化物还原成氮气。氮氧化物存储材料可以位于电气放电区域中，并且排气可以通过排出物，然后通过存储材料。

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