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41. 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。

42. 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。

43. 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。

44. 发明授权

US07313911B2 Method of removing nitrogen oxides from the exhaust gas of a lean-burn internal combustion engine and exhaust-gas purification system therefor 有权
标题翻译：从稀燃内燃机的废气中除去氮氧化物的方法及其废气净化系统
公开(公告)号：US07313911B2
公开(公告)日：2008-01-01
申请号：US10547249
申请日：2004-02-26
申请人： Markus Pfeifer , Barry Van Setten , Paul Spurk , Yvonne Demel , Tobias Kuhl , Jürgen Gieshoff , Egbert Lox , Thomas Kreuzer
发明人： Markus Pfeifer , Barry Van Setten , Paul Spurk , Yvonne Demel , Tobias Kuhl , Jürgen Gieshoff , Egbert Lox , Thomas Kreuzer
IPC分类号： F01N3/00
CPC分类号： F01N3/2066 , B01D53/9431 , B01D53/9495 , F01N13/009 , F01N13/0093 , F01N2240/40 , F01N2610/02 , Y02T10/24
摘要： The present invention relates to a method of removing nitrogen oxides from the exhaust gas of a lean-burn internal combustion engine by selective catalytic reduction (SCR) using ammonia. The exhaust gas is routed first over a platinum-containing pre-catalyst and then over an SCR catalyst. The ammonia needed for the selective catalytic reduction is added to the exhaust gas upstream of the pre-catalyst at an exhaust-gas temperature below 250° C., while it is supplied to the exhaust gas between the pre-catalyst and the SCR catalyst at an exhaust gas temperature above 150° C. By adopting this procedure, a very large temperature range for the selective catalytic reduction with high nitrogen conversion rates is obtained.
摘要翻译：本发明涉及通过使用氨的选择性催化还原（SCR）从贫燃内燃机的废气中除去氮氧化物的方法。排气首先通过含铂预催化剂然后超过SCR催化剂。在低于250℃的排气温度下，将催化剂选择性还原所需的氨加入到预催化剂上游的废气中，同时向预催化剂和SCR催化剂之间的排气供应废气温度高于150℃。通过采用该方法，获得了具有高氮转化率的选择性催化还原的非常大的温度范围。

45. 发明申请

US20070110650A1 Catalyst arrangement and method of purifying the exhaust gas of internal combustion engines operated under lean conditions 有权
标题翻译：在精细条件下运行的内燃机的排气净化催化剂装置和方法
公开(公告)号：US20070110650A1
公开(公告)日：2007-05-17
申请号：US10567204
申请日：2004-07-29
申请人： Marcus Pfeifer , Nicola Soeger , Yvonne Demel , Tobias Kuhl , Paul Spurk , Jurgen Gieshoff , Egbert Lox , Thomas Kreuzer
发明人： Marcus Pfeifer , Nicola Soeger , Yvonne Demel , Tobias Kuhl , Paul Spurk , Jurgen Gieshoff , Egbert Lox , Thomas Kreuzer
IPC分类号： B01D50/00 , B01D53/94
CPC分类号： B01D53/945 , B01D53/9418 , B01D53/9422 , B01D53/9431 , B01D53/9454 , B01D2251/208 , B01D2255/1021 , B01D2255/204 , B01D2255/2042 , B01D2255/2065 , B01D2255/20707 , B01D2255/2073 , B01D2255/20738 , B01D2255/20761 , B01D2255/2092 , B01D2255/407 , B01D2255/504 , B01D2255/9155 , F01N3/035 , F01N3/0814 , F01N3/0821 , F01N3/0842 , F01N3/2066 , F01N3/2828 , F01N2250/12 , F01N2510/06 , Y02T10/22 , Y02T10/24
摘要： The invention relates to a catalyst arrangement for purifying the exhaust gases of internal combustion engines operated under lean conditions. It is proposed that a thinwalled, porous carrier be coated on one side with a nitrogen oxide storage catalyst and on the other side with an SCR catalyst. When the exhaust gas is passed through the catalytic coatings and the support material, a significant improvement in the nitrogen oxide conversion is achieved compared to a series arrangement of the catalysts on separate carriers. Wall flow filters have been found to be useful as thin-walled carriers.
摘要翻译：本发明涉及一种用于净化在稀薄条件下运行的内燃机废气的催化剂装置。建议在一侧用氮氧化物储存催化剂涂覆薄壁多孔载体，另一侧用SCR催化剂涂覆。当排气通过催化涂层和载体材料时，与单独的载体上的催化剂的串联排列相比，实现了氮氧化物转化率的显着改善。已经发现壁流式过滤器可用作薄壁载体。

46. 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。

47. 发明授权

US06843971B2 Process and catalyst for reducing nitrogen oxides 有权
标题翻译：用于还原氮氧化物的方法和催化剂
公开(公告)号：US06843971B2
公开(公告)日：2005-01-18
申请号：US09838119
申请日：2001-04-20
申请人： Adolf Schäfer-Sindlinger , Marcus Pfeifer , Paul Spurk , Yvonne Demel , Thomas Kreuzer , Egbert Lox
发明人： Adolf Schäfer-Sindlinger , Marcus Pfeifer , Paul Spurk , Yvonne Demel , Thomas Kreuzer , Egbert Lox
IPC分类号： F01N3/08 , B01D53/34 , B01D53/56 , B01D53/74 , B01D53/86 , B01D53/94 , B01J8/02 , B01J21/00 , B01J23/80 , B01J29/06 , B01J29/064 , B01J29/072 , B01J29/076 , B01J29/46 , B01J35/04 , B01J37/02 , B01J37/30 , C01B21/00 , C01B21/04 , F01N3/10 , F01N3/20 , F01N3/28
CPC分类号： F01N3/2066 , B01D53/9418 , B01D53/9477 , B01D2251/2067 , B01D2255/2065 , B01D2255/20738 , B01D2255/20761 , B01D2255/504 , B01D2255/808 , B01J29/072 , B01J29/46 , B01J35/04 , B01J37/0215 , F01N2610/02 , Y02T10/24
摘要： A process for reducing the nitrogen oxides present in a lean exhaust gas from an internal combustion engine by selective catalytic reduction on a reduction catalyst using ammonia, wherein a fraction of the nitrogen monoxide present in the exhaust gas is oxidized to nitrogen dioxide before the exhaust gas, together with ammonia, is passed over the reduction catalyst. The reduction catalyst contains a zeolite exchanged with transition metals and oxidation of the nitrogen monoxide is performed in such a way that the exhaust gas contains 30 to 70 vol. % of nitrogen dioxide before contact with the reduction catalyst.
摘要翻译：一种通过使用氨在还原催化剂上选择性催化还原来还原来自内燃机的贫废气中存在的氮氧化物的方法，其中废气中存在的一氧化氮的一部分在排气之前被氧化为二氧化氮与氨一起通过还原催化剂。还原催化剂含有与过渡金属交换的沸石，一氧化氮的氧化以排气含有30〜70体积％与还原催化剂接触之前的二氧化氮的％。

48. 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。

49. 发明授权

US6103660A Method of depositing catalytically active components on high-surface area support materials 失效
标题翻译：在高表面积支撑材料上沉积催化活性成分的方法
公开(公告)号：US6103660A
公开(公告)日：2000-08-15
申请号：US55908
申请日：1998-04-07
申请人： Renee Van Yperen , Dieter Lindner , Lothar Mussmann , Egbert Lox , Thomas Kreuzer
发明人： Renee Van Yperen , Dieter Lindner , Lothar Mussmann , Egbert Lox , Thomas Kreuzer
IPC分类号： B01J21/16 , B01J23/58 , B01J23/63 , B01J37/02 , B01J37/03 , B01J23/40
CPC分类号： B01J37/035 , B01J23/63 , B01J37/0234 , B01J37/031
摘要： A method of depositing catalytically active components on high-surface carrier materials is disclosed by dispersing the carrier materials in water and mixing this dispersion with an aqueous solution of soluble precursors of the catalytically active components. The pH of the dispersion is adjusted to a value between 6 and 8 before the aqueous solution of the precursors is supplied by capillary injection under constant agitation of the dispersion and thereafter, if necessary, the precursors of the catalytically active components are precipitated on the carrier material by capillary injection of a dilute base.
摘要翻译：通过将载体材料分散在水中并将该分散体与催化活性组分的可溶性前体的水溶液混合来公开在高表面载体材料上沉积催化活性组分的方法。在不断搅拌分散体之前，通过毛细管注入前体的水溶液，然后如果需要，催化活性组分的前体在载体上沉淀，将分散体的pH调节至6至8之间的值材料通过毛细管注入稀碱。

50. 发明授权

US5928981A Diesel catalytic converter 失效
标题翻译：柴油催化转化器
公开(公告)号：US5928981A
公开(公告)日：1999-07-27
申请号：US838846
申请日：1997-04-11
申请人： Jurgen Leyrer , Dieter Lindner , Egbert Lox , Thomas Kreuzer , Wilfried Muller , Rainer Domesle
发明人： Jurgen Leyrer , Dieter Lindner , Egbert Lox , Thomas Kreuzer , Wilfried Muller , Rainer Domesle
IPC分类号： B01D53/86 , B01D53/94 , B01J29/03 , B01J29/068 , B01J29/08 , B01J29/40 , B01J29/44 , B01J29/80 , B01J29/06 , B01J8/00 , B01J29/22
CPC分类号： B01D53/945 , B01J29/068 , B01J29/80 , B01J2229/16 , B01J29/084 , B01J29/40 , Y02T10/22
摘要： A catalyst for purifying the exhaust gases from diesel engines. The catalyst contains a zeolite mixture of several zeolites with different moduli and platinum group metals as well as further metal oxides from the group aluminum silicate, aluminum oxide and titanium oxide, wherein the aluminum silicate has a ratio by weight of silicon dioxide to aluminum oxide of 0.005 to 1 and the platinum group metals are deposited on only the further metal oxides.
摘要翻译：用于净化柴油发动机废气的催化剂。催化剂含有具有不同模量和铂族金属的几种沸石以及来自硅酸铝，氧化铝和氧化钛的其它金属氧化物的沸石混合物，其中硅酸铝的二氧化硅与氧化铝的重量比 0.005至1，并且铂族金属仅沉积在另外的金属氧化物上。

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