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1. 发明授权

US08062601B2 Emission SCR NOX aftertreatment system having reduced SO3 generation and improved durability 有权
标题翻译：排放SCR NOX后处理系统具有减少的SO3产生和改善的耐久性
公开(公告)号：US08062601B2
公开(公告)日：2011-11-22
申请号：US12912095
申请日：2010-10-26
申请人： Yisun Cheng , Clifford Norman Montreuil , Giovanni Cavataio , Douglas Allen Dobson , Christine Kay Lambert
发明人： Yisun Cheng , Clifford Norman Montreuil , Giovanni Cavataio , Douglas Allen Dobson , Christine Kay Lambert
IPC分类号： B01D50/00 , F01N3/10
CPC分类号： F01N3/2066 , F01N3/023 , F01N3/035 , F01N3/106 , F01N13/009 , F01N2570/10 , F01N2570/14 , Y02A50/2344 , Y02T10/24
摘要： An exemplary emission treatment system for reducing gases from the exhaust of an engine includes an exhaust passage for transporting the exhaust from the engine. A selective catalytic reduction (SCR) catalyst is disposed within the passage, and an oxidation catalyst is disposed in the passage upstream of the SCR catalyst. The oxidation catalyst has noble metal, with at least 90 wt. % of the metal comprising palladium (Pd).
摘要翻译：用于减少来自发动机排气的气体的示例性排放处理系统包括用于输送来自发动机的排气的排气通道。选择性催化还原（SCR）催化剂设置在通道内，氧化催化剂设置在SCR催化剂上游的通路中。氧化催化剂具有贵金属，至少90wt。％的包含钯（Pd）的金属。

2. 发明申请

US20110162349A1 EMISSION SCR NOX AFTERTREATMENT SYSTEM HAVING REDUCED SO3 GENERATION AND IMPROVED DURABILITY 有权
标题翻译：具有减少SO3产生的排放SCR NOX后处理系统和改进的耐久性
公开(公告)号：US20110162349A1
公开(公告)日：2011-07-07
申请号：US12912095
申请日：2010-10-26
申请人： Yisun Cheng , Clifford Norman Montreuil , Giovanni Cavataio , Douglas Allen Dobson , Christine Kay Lambert
发明人： Yisun Cheng , Clifford Norman Montreuil , Giovanni Cavataio , Douglas Allen Dobson , Christine Kay Lambert
IPC分类号： F01N3/00 , F01N3/10 , F01N3/035
CPC分类号： F01N3/2066 , F01N3/023 , F01N3/035 , F01N3/106 , F01N13/009 , F01N2570/10 , F01N2570/14 , Y02A50/2344 , Y02T10/24
摘要： The present invention relates to an emission treatment system for reducing gases from the exhaust of an engine. In at least one embodiment, the emission treatment system includes an exhaust passage for transporting the exhaust from the engine, a selective catalytic reduction (SCR) catalyst disposed within the passage, and an oxidation catalyst disposed in the passage upstream of the SCR catalyst, with the oxidation catalyst having metal, with at least 90 wt. % of the metal comprising palladium (Pd).
摘要翻译：本发明涉及一种用于减少来自发动机排气的气体的排放处理系统。在至少一个实施例中，排放处理系统包括用于输送来自发动机的排气的排气通道，设置在通道内的选择性催化还原（SCR）催化剂和设置在SCR催化剂上游的通道中的氧化催化剂，该氧化催化剂具有至少90wt。％的包含钯（Pd）的金属。

3. 发明授权

US08062618B2 Exhaust aftertreatment system and method of treating exhaust gas 有权
标题翻译：排气后处理系统及废气处理方法
公开(公告)号：US08062618B2
公开(公告)日：2011-11-22
申请号：US12425986
申请日：2009-04-17
申请人： Lifeng Xu , Harendra S Gandhi , Robert Walter McCabe , Clifford Norman Montreuil
发明人： Lifeng Xu , Harendra S Gandhi , Robert Walter McCabe , Clifford Norman Montreuil
IPC分类号： B01D53/56
CPC分类号： F01N3/0814 , B01D53/9422 , B01D53/944 , B01D53/9481 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/202 , B01D2255/204 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , B01D2255/9022 , B01D2258/012 , B01J23/58 , B01J29/072 , F01N3/021 , F01N3/0842 , F01N13/0093 , F01N2370/04 , Y02T10/24
摘要： A diesel exhaust aftertreatment system and method are provided. The system includes a lean NOx trap for reducing NOx and a transition metal-exchanged zeolite booster catalyst positioned downstream from the lean NOx trap for further reducing NOx. The lean NOx trap includes a NOx adsorbent material and one or more platinum group metals, and has a platinum group metal loading of less than about 90 g/ft3. The aftertreatment system provides high NOx conversion over a broad temperature range without the use of ammonia as a major reductant.
摘要翻译：提供柴油机废气后处理系统和方法。该系统包括用于还原NOx的贫NOx捕集器和位于贫NOx捕集器下游的用于进一步还原NOx的过渡金属交换的沸石增效催化剂。贫NOx捕集器包括NOx吸附剂材料和一种或多种铂族金属，并且具有小于约90g / ft 3的铂族金属负载量。后处理系统在宽的温度范围内提供高的NOx转化率，而不使用氨作为主要的还原剂。

4. 发明授权

US06846464B2 Bimodal catalyst-urea SCR system for enhanced NOx conversion and durability 有权
标题翻译：双模催化剂 - 尿素SCR系统，用于增强NOx转化和耐久性
公开(公告)号：US06846464B2
公开(公告)日：2005-01-25
申请号：US10065797
申请日：2002-11-20
申请人： Clifford Norman Montreuil , Joseph Robert Theis
发明人： Clifford Norman Montreuil , Joseph Robert Theis
IPC分类号： F01N3/035 , F01N3/20 , F01N3/28 , F01N13/02 , F01N13/04 , B01D53/34
CPC分类号： F01N3/2066 , F01N3/035 , F01N3/28 , F01N3/2882 , F01N13/009 , F01N13/011 , F01N13/017 , F01N2250/02 , F01N2610/02 , Y02A50/2325 , Y02C20/10 , Y02T10/24
摘要： The present invention discloses a method for reducing NOx in exhaust gases of an internal combustion engine. The purpose of this invention is to convert engine out NOx (approximately 90% NO in diesel exhaust) into roughly a 50:50 mixture of NO and NO2, while simultaneously oxidizing engine-out hydrocarbons which interfere with the reduction of NOx by urea or ammonia. The present invention demonstrates that a 50:50 blend of NO and NO2 is reduced more rapidly and with higher efficiency than a gas stream which is predominantly NO. In addition, catalyst in an engine exhaust that is a 50:50 mixture of NO and NO2 is far more resistant to hydrothermal deterioration than using NO alone. In another embodiment of the present invention, a vehicle exhaust system utilizing the method of the present invention is provided.
摘要翻译：本发明公开了一种减少内燃机排气中的NOx的方法。本发明的目的是将发动机将NOx（大约90％的柴油机废气中的NO）转化成大致50:50的NO和NO 2混合物，同时氧化发动机出来的碳氢化合物，其干扰尿素或氨的NOx还原。本发明证实，与主要为NO的气流相比，NO和NO 2的50:50共混物被更快地和更高效地降低。另外，作为NO和NO 2的50:50混合物的发动机排气中的催化剂比单独使用NO更能抵抗水热退化。在本发明的另一实施例中，提供了利用本发明的方法的车辆排气系统。

5. 发明授权

US07390469B2 Bimodal catalyst-urea SCR system for enhanced NOx conversion and durability 有权
标题翻译：双模催化剂 - 尿素SCR系统，用于增强NOx转化和耐久性
公开(公告)号：US07390469B2
公开(公告)日：2008-06-24
申请号：US10904444
申请日：2004-11-10
申请人： Clifford Norman Montreuil , Joseph Robert Theis
发明人： Clifford Norman Montreuil , Joseph Robert Theis
IPC分类号： B01D53/56 , B01D53/92 , B01D53/94
CPC分类号： F01N3/2066 , F01N3/035 , F01N3/28 , F01N3/2882 , F01N13/009 , F01N13/011 , F01N13/017 , F01N2250/02 , F01N2610/02 , Y02A50/2325 , Y02C20/10 , Y02T10/24
摘要： The present invention discloses a method for reducing NOx in exhaust gases of an internal combustion engine. The purpose of this invention is to convert engine out NOx (approximately 90% NO in diesel exhaust) into roughly a 50:50 mixture of NO and NO2, while simultaneously oxidizing engine-out hydrocarbons which interfere with the reduction of NOx by urea or ammonia. The present invention demonstrates that a 50:50 blend of NO and NO2 is reduced more rapidly and with higher efficiency than a gas stream which is predominantly NO. In addition, catalyst in an engine exhaust that is a 50:50 mixture of NO and NO2 is far more resistant to hydrothermal deterioration than using NO alone. In another embodiment of the present invention, a vehicle exhaust system utilizing the method of the present invention is provided.
摘要翻译：本发明公开了一种减少内燃机排气中的NO x的方法。本发明的目的是将发动机转化为NO x NO x（大约90％的柴油机废气中的NO）转化成大约50:50的NO和NO 2 2的混合物，同时氧化发动机排出的碳氢化合物，其干扰尿素或氨的还原NO x。本发明表明，与主要为NO的气流相比，NO和NO 2 2的50:50共混物被更快地和更高的效率地降低。此外，作为NO和NO 2 2的50:50混合物的发动机排气中的催化剂比单独使用NO更能抵抗水热退化。在本发明的另一实施例中，提供了利用本发明的方法的车辆排气系统。

6. 发明授权

US06892530B2 Exhaust gas aftertreatment systems 有权
标题翻译：废气后处理系统
公开(公告)号：US06892530B2
公开(公告)日：2005-05-17
申请号：US10301445
申请日：2002-11-21
申请人： Clifford Norman Montreuil , Michiel J. van Nieuwstadt , Paul J. Tennison
发明人： Clifford Norman Montreuil , Michiel J. van Nieuwstadt , Paul J. Tennison
IPC分类号： B01D53/90 , B01D53/94 , B01D53/96 , F01N3/035 , F01N3/20 , F01N3/32 , F01N13/02 , F02D41/02 , F02D41/14 , F01N3/00
CPC分类号： F01N3/208 , B01D53/90 , B01D53/9431 , B01D53/9495 , B01D53/96 , F01N3/035 , F01N3/2006 , F01N3/32 , F01N13/009 , F01N2430/06 , F01N2430/08 , F01N2550/05 , F01N2560/026 , F01N2560/06 , F01N2570/18 , F01N2610/02 , F01N2610/08 , F01N2610/10 , F01N2610/146 , F01N2900/0411 , F01N2900/0422 , F02D41/028 , F02D41/1454 , Y02A50/2325 , Y02T10/24 , Y02T10/26
摘要： A method for improving NOx conversion efficiency of a urea base SCR catalyst is presented. Since efficiency is reduced by the presence of hydrocarbons in the catalyst, the method proposes to regenerate the SCR by maintaining its temperature above the boiling point of hydrocarbons for a sufficient period of time to free up catalyst storage sites. The regeneration process is followed by over-injection of ammonia to replenish the ammonia released from the SCR catalyst due to high regeneration temperatures.
摘要翻译：提出了一种提高脲基SCR催化剂的NOx转化效率的方法。由于催化剂中烃的存在降低了效率，因此该方法提出通过将其温度保持在烃的沸点足够长的时间以释放催化剂储存位点来再生SCR。在再生过程之后，由于高再生温度，过量注入氨以补充从SCR催化剂释放的氨。

7. 发明授权

US5950421A Tungsten-modified platinum NOx traps for automotive emission reduction 失效
标题翻译：用于汽车减排的钨改性铂NO x阱
公开(公告)号：US5950421A
公开(公告)日：1999-09-14
申请号：US993927
申请日：1997-12-18
申请人： Mohinder S. Chattha , Robert J. Kudla , Clifford Norman Montreuil
发明人： Mohinder S. Chattha , Robert J. Kudla , Clifford Norman Montreuil
IPC分类号： B01D53/94 , F01N3/08 , F01N3/00
CPC分类号： F01N3/0842 , B01D53/9422 , F01N3/0814 , F01N3/0871 , B01D2255/1021 , B01D2255/1025 , B01D2255/20776 , Y02T10/22 , Y02T10/24
摘要： The invention is a method of treating exhaust gases generated by an internal combustion engine using a NOx trap in the exhaust gas system. The method comprises locating an essentially alkaline earth-free nitrogen oxide trap in the exhaust gas passage and cycling the air/fuel ratio of the exhaust gases entering the trap between lean and rich, such that the trap absorbs nitrogen oxides during the lean cycle and desorbs the nitrogen oxides when the concentration of the oxygen in the exhaust gas is lowered as during a rich cycle. The trap comprises: (a) a porous support material comprising mostly .gamma.-alumina and (b) metals consisting essentially of 0.1 to 2 wt. % tungsten oxide and precious metal comprising 0.5 to 4 wt. % platinum deposited on the support, the amount of said metals being individually based on the weight of said support material. The desorbed nitrogen oxides may be converted over the precious metal to N.sub.2 and O.sub.2 by reductants like hydrocarbons present in the exhaust gas.
摘要翻译：本发明是一种利用排气系统中的NOx捕集器来处理由内燃机产生的废气的方法。该方法包括将排气通道中基本上不含碱性的无土氮氧化物捕集器定位，并且循环在贫和富之间进入捕集阱的排气的空气/燃料比，使得阱在贫循环期间吸收氮氧化物并解吸当在富循环期间排气中的氧浓度降低时，氮氧化物。捕集器包括：（a）主要包含γ-氧化铝的多孔支撑材料和（b）基本上由0.1至2重量％％的氧化钨和贵重金属，其含有0.5〜4wt。％铂沉积在载体上，所述金属的量分别基于所述载体材料的重量。解吸的氮氧化物可以通过诸如排放气体中存在的烃之类的还原剂在贵金属上转化为N 2和O 2。

8. 发明申请

US20100266471A1 EXHAUST AFTERTREATMENT SYSTEM AND METHOD OF TREATING EXHAUST GAS 有权
标题翻译：排气后处理系统及排气处理方法
公开(公告)号：US20100266471A1
公开(公告)日：2010-10-21
申请号：US12425986
申请日：2009-04-17
申请人： Lifeng Xu , Harendra S. Gandhi , Robert Walter McCabe , Clifford Norman Montreuil
发明人： Lifeng Xu , Harendra S. Gandhi , Robert Walter McCabe , Clifford Norman Montreuil
IPC分类号： B01D53/56 , F01N3/10 , F01N3/00
CPC分类号： F01N3/0814 , B01D53/9422 , B01D53/944 , B01D53/9481 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/202 , B01D2255/204 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , B01D2255/9022 , B01D2258/012 , B01J23/58 , B01J29/072 , F01N3/021 , F01N3/0842 , F01N13/0093 , F01N2370/04 , Y02T10/24
摘要： A diesel exhaust aftertreatment system and method are provided. The system includes a lean NOx trap for reducing NOx and a transition metal-exchanged zeolite booster catalyst positioned downstream from the lean NOx trap for further reducing NOx. The lean NOx trap includes a NOx adsorbent material and one or more platinum group metals, and has a platinum group metal loading of less than about 90 g/ft3. The aftertreatment system provides high NOx conversion over a broad temperature range without the use of ammonia as a major reductant.
摘要翻译：提供柴油机废气后处理系统和方法。该系统包括用于减少NOx的贫NOx捕集器和位于贫NOx捕集器下游的用于进一步还原NOx的过渡金属交换的沸石增效催化剂。贫NOx捕集器包括NOx吸附剂材料和一种或多种铂族金属，并且具有小于约90g / ft 3的铂族金属负载量。后处理系统在宽的温度范围内提供高的NOx转化率，而不使用氨作为主要还原剂。

9. 发明授权

US5922294A High surface area, thermally stabilized titania automotive catalyst support 失效
标题翻译：高表面积，热稳定二氧化钛汽车催化剂载体
公开(公告)号：US5922294A
公开(公告)日：1999-07-13
申请号：US814070
申请日：1997-03-10
申请人： Mohinder S. Chattha , Clifford Norman Montreuil
发明人： Mohinder S. Chattha , Clifford Norman Montreuil
IPC分类号： B01J21/06 , B01J23/40 , B01J37/03 , C01G23/00 , C01G23/053 , B01J21/04 , C01B21/00
CPC分类号： B01J21/063 , B01J23/40 , B01J37/033 , C01G23/003 , C01G23/053 , C01P2002/52 , C01P2002/72 , C01P2006/12 , C01P2006/13
摘要： This invention is a sulfur-resistant, high surface area and temperature stabilized anatase crystal form of a mixed-oxide of titania and alumina comprising at least 40% molar amount titania. The mixed-oxide is made by co-hydrolysis of a mixture of the alkoxides of titanium and aluminum. The mixed oxide is useful as a catalyst support for treating exhaust gases generated by a diesel or gasoline internal combustion engine of automotive vehicles. The catalyst support may contain catalytic materials like precious metals.
摘要翻译：本发明是包含至少40摩尔量的二氧化钛的二氧化钛和氧化铝的混合氧化物的耐硫，高表面积和温度稳定的锐钛矿晶体形式。混合氧化物通过钛和铝的醇盐的混合物的共水解制备。混合氧化物可用作用于处理由汽车的柴油或汽油内燃机产生的废气的催化剂载体。催化剂载体可以含有催化材料如贵金属。

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