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1. 发明授权

US06607704B2 Sulfur tolerant lean NOx trap 有权
标题翻译：耐硫贫NOx捕集器
公开(公告)号：US06607704B2
公开(公告)日：2003-08-19
申请号：US09682781
申请日：2001-10-18
申请人： Diane L. Guttridge , Jun (John) Li , Mohinder Singh Chattha , Robert J. Kudla , William Lewis Henderson Watkins
发明人： Diane L. Guttridge , Jun (John) Li , Mohinder Singh Chattha , Robert J. Kudla , William Lewis Henderson Watkins
IPC分类号： B01J2004
CPC分类号： B01J23/002 , B01D53/9422 , B01D2255/2047 , B01D2255/2065 , B01D2255/20715 , B01D2255/40 , B01D2255/91 , B01D2257/302 , B01D2257/404 , B01J21/005 , B01J2523/00 , Y10S502/524 , B01J2523/22 , B01J2523/31 , B01J2523/3712
摘要： An integrated lean NOx trap. The integrated lean NOx trap includes a lean NOx trap containing a composite metal oxide mixture consisting essentially of about 80-100 wt % stoichiometric spinel MgAl2O4 and between about 0-20 wt % of CeO2 or CeO2—ZrO2. A method for removing NOx and SOx impurities from exhaust gases using the integrated lean NOx trap is also described.
摘要翻译：一个集成的贫NOx捕集器。集成的贫NOx捕集器包括含有基本上由约80-100重量％的化学计量的尖晶石MgAl 2 O 4和约0-20重量％的CeO 2或CeO 2 -ZrO 2组成的复合金属氧化物混合物的贫NOx捕集器。还描述了使用集成的贫NOx捕集器从废气中除去NOx和SO x杂质的方法。

2. 发明授权

US6129898A NOx trap catalyst for lean burn engines 失效
标题翻译：用于贫燃发动机的NOx捕集催化剂
公开(公告)号：US6129898A
公开(公告)日：2000-10-10
申请号：US134992
申请日：1998-08-17
申请人： William Lewis Henderson Watkins , Robert J. Kudla , Mohinder S. Chattha
发明人： William Lewis Henderson Watkins , Robert J. Kudla , Mohinder S. Chattha
IPC分类号： B01D53/56 , B01D53/86 , B01D53/94 , B01J23/63 , B01J23/656 , B01J37/03 , F01N3/08 , F01N3/10 , F01N3/28 , B01J8/02 , B01J8/00 , B01J23/00 , B01J23/32 , C01B21/00
CPC分类号： B01D53/9422 , B01J23/63 , B01J23/6562 , B01J37/036 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/2065 , B01D2255/20715 , B01D2255/2073 , B01D2255/2092 , Y02T10/22
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 a 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 tri-metal oxides made of aluminum-manganese-zirconium and (b) at least 0.1 wt. % platinum, the wt. % being based on the weight of said tri-metal oxide 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. The invention is also the catalyst trap material.
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的氮氧化物捕集器定位并且循环在贫和富之间进入捕集器的排气的空气/燃料比，使得阱在贫循环期间吸收氮氧化物并且当氮在富循环期间，排气中的氧浓度降低。捕集器包括：（a）由铝锰锆制成的三金属氧化物和（b）至少0.1重量％％铂，wt。％是基于所述三金属氧化物材料的重量。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。本发明也是催化剂捕集材料。

3. 发明授权

US6103207A Treating diesel exhaust with a catalytic particulate mixture 有权
标题翻译：用催化颗粒混合物处理柴油机废气
公开(公告)号：US6103207A
公开(公告)日：2000-08-15
申请号：US298860
申请日：1999-04-26
申请人： Mohinder S. Chattha , Robert J. Kudla
发明人： Mohinder S. Chattha , Robert J. Kudla
IPC分类号： B01D53/94 , B01J21/06 , B01J23/656 , B01J35/00 , B01J37/02
CPC分类号： B01D53/945 , B01J23/6562 , B01J35/0006 , B01J21/063 , B01J37/0215 , Y02T10/22 , Y10S502/524 , Y10S502/525
摘要： A method is provided for treating diesel engine exhaust gas with a catalyst containing a physical mixture of particles. The catalyst contains a physical mixture of particles of (i) a bi-metal oxide of manganese and zirconium and (ii) a precious metal, such as platinum, supported on an alumina, such as gamma alumina.
摘要翻译：提供了一种用含有粒子的物理混合物的催化剂处理柴油发动机废气的方法。催化剂含有（i）锰和锆的二金属氧化物和（ii）负载在氧化铝上的贵金属如铂的物质混合物，例如γ氧化铝。

4. 发明授权

US5593933A Refractory oxides based silver-tungsten lean-NOx catalyst 失效
$Refractory oxides based silver-tungsten lean-NOx catalyst$
标题翻译：耐火氧化物基银 - 钨 - 稀有氧化物催化剂
公开(公告)号：US5593933A
公开(公告)日：1997-01-14
申请号：US521500
申请日：1995-08-30
申请人： Mohinder S. Chattha , Robert J. Kudla
发明人： Mohinder S. Chattha , Robert J. Kudla
IPC分类号： B01D53/94 , B01J23/68 , B01J23/30 , B01J23/50
CPC分类号： B01D53/945 , B01J23/687 , B01D2255/104 , Y02T10/22
摘要： This invention is a catalyst for treating the exhaust gases produced during lean-burn engine operation, the gases comprising nitrogen oxides, carbon monoxide and hydrocarbons. The catalyst comprises a support material comprising gamma-alumina, a layer of about 0.01 to 1.5 wt. % tungsten deposited onto the support followed by a layer of about 1 to 3 wt. % silver, both being individually based on the weight of the support material.
摘要翻译：本发明是一种用于处理在稀燃发动机运行期间产生的废气的催化剂，所述气体包括氮氧化物，一氧化碳和烃。该催化剂包含一种载体材料，该载体材料包含γ-氧化铝，约0.01-1.5wt。将钨沉积在载体上，随后是约1至3重量％的层。％银，均分别基于支撑材料的重量。

5. 发明授权

US5618505A Method for converting lean-burn engine exhust gases using a two stage catalyst system 失效
标题翻译：使用两级催化剂体系转化稀燃发动机排出气体的方法
公开(公告)号：US5618505A
公开(公告)日：1997-04-08
申请号：US296638
申请日：1994-08-26
申请人： Somasundaram Subramanian , Robert J. Kudla , Mohinder S. Chattha
发明人： Somasundaram Subramanian , Robert J. Kudla , Mohinder S. Chattha
IPC分类号： B01D53/86 , B01D53/94 , B01J23/30 , B01J23/72 , B01J23/88 , B01J35/00 , B01J35/02
CPC分类号： B01D53/9445 , B01D53/945 , B01J23/30 , B01J35/0006 , B01D53/9477 , Y02T10/22
摘要： The present invention broadly relates to a catalyst for promoting oxidation-reduction reactions of the exhaust gases produced by an internal combustion engine wherein the catalyst comprises a first-stage high temperature catalyst and a second-stage lower temperature catalyst. The first-stage catalyst comprises between about 0.1 and 3% by weight tungsten carried on a support material comprising mostly .gamma.-alumina. The second-stage catalyst comprises a base metal catalyst carried on a support material and preferably comprises between 0.1 and 6% by weight copper carried on a support material comprising mostly .gamma.-alumina.
摘要翻译：本发明广泛地涉及用于促进由内燃机生产的废气的氧化还原反应的催化剂，其中催化剂包括第一级高温催化剂和第二级低温催化剂。第一级催化剂包含约0.1-3％（重量）的钨，该载体材料主要由γ-氧化铝组成。第二阶段催化剂包含负载在载体材料上的贱金属催化剂，优选包含0.1至6重量％的铜，该载体材料主要包含γ-氧化铝。

6. 发明授权

US5179053A Treating exchaust from a compressed natural gas-fueled engine 失效
标题翻译：从压缩天然气燃料发动机处理可再生能源
公开(公告)号：US5179053A
公开(公告)日：1993-01-12
申请号：US789558
申请日：1991-11-08
申请人： Somasundaram Subramanian , Robert J. Kudla , Mohinder S. Chattha
发明人： Somasundaram Subramanian , Robert J. Kudla , Mohinder S. Chattha
IPC分类号： B01D53/94 , B01J23/63 , B01J29/46 , B01J29/74 , B01J37/02
CPC分类号： B01J37/0246 , B01D53/945 , B01J23/63 , B01J29/46 , Y02T10/22
摘要： A catalyst system that converts the exhaust gas of a compressed natural gas (CNG) fueled automotive engine when operated at stoichiometry or slightly lean thereof, at highly enhanced rates, and having: (a) a first stage catalyst comprising a transition metal-containing zeolite (Cu-ZSM5), and (b) a second stage catalyst for treating the effluent of the first stage and comprising palladium supported on high surface area gamma alumina. The second stage catalyst has the alumina support impregnated with an intimate mixture, by weight, of 0.5-20% La.sub.2 O.sub.3 and 0.2-30% palladium.A method of treating exhaust gases from a CNG-fueled engine, comprising: (a) operating the engine at stoichiometry or slightly lean (0.85-1.0 R) thereof; (b) exposing such exhaust gases to a first stage catalyst consisting of a copper-ZSM5 zeolite having at least 3% by weight ion exchange copper; and (c) exposing the effluent from the first stage to a second stage comprising a gamma alumina support catalyst impregnated with palladium and other catalyst enhancing oxides.
摘要翻译：一种催化剂体系，其以高度增加的速率将以压缩天然气（CNG）燃料汽车发动机的排气转化为化学计量或轻微倾斜，并具有：（a）第一级催化剂，其包含含过渡金属的沸石（Cu-ZSM5）和（b）用于处理第一阶段流出物并包含负载在高表面积γ氧化铝上的钯的第二阶段催化剂。第二阶段催化剂具有以0.5-20％La 2 O 3和0.2-30％钯的重量混合物浸渍的氧化铝载体。一种处理来自CNG燃料发动机的废气的方法，包括：（a）以化学计量或稍微倾斜（0.85-1.0R）操作发动机; （b）将这种废气暴露于由具有至少3重量％离子交换铜的铜-ZSM5沸石组成的第一阶段催化剂; 和（c）将来自第一阶段的流出物暴露于包含浸渍有钯和其它催化剂增强氧化物的γ氧化铝载体催化剂的第二阶段。

7. 发明授权

US5788936A Catalyst system for converting emissions of a lean-burn engine 失效
标题翻译：用于转换稀燃燃烧发动机排放的催化剂系统
公开(公告)号：US5788936A
公开(公告)日：1998-08-04
申请号：US917261
申请日：1992-07-23
申请人： Somasundaram Subramanian , Robert J. Kudla , Mohinder S. Chattha
发明人： Somasundaram Subramanian , Robert J. Kudla , Mohinder S. Chattha
IPC分类号： B01D53/94 , B01J21/04 , F01N3/20 , F01N13/02 , B01D53/56 , B01D53/92
CPC分类号： F01N3/2066 , B01D53/9459 , B01J21/04 , F01N13/009 , B01D2251/208 , B01D2251/21 , B01D2255/1023 , B01D53/9418 , B01D53/944 , F01N2610/03 , Y02T10/24
摘要： A catalyst system for attaining high conversions of NO, HC, and CO in a fuel-lean emission flow (i.e., containing SO.sub.2, H.sub.2 O, H.sub.2, and considerable excess oxygen), the system comprising: (a) a first stage reducing catalyst for treating the nitric oxide emissions, the catalyst containing highly acidic gamma alumina (i.e., with a pH.sub.pzc of less than 3); (b) means for injecting gaseous or liquid reductants into the emission stream prior to entering said first stage catalyst, said first stage catalyst temperature being selected to be in the range of 550.degree.-650.degree. C.; and (c) an oxidation catalyst effective for treating the effluent from the first stage catalyst. Another aspect of this invention is a method of treating the exhaust gas from a fuel-lean emission flow from a fossil-fueled internal combustion engine having a redox ratio of 0.02-0.09, the method comprising: (a) injecting a gaseous or liquid HC or oxygenated HC reductant into the emission stream at a location where the stream is within the temperature range of 550.degree.-650.degree. C.; (b) immediately exposing the injected stream to a first stage catalyst containing acidic gamma alumina with a Ph.sub.pzc of less than 3; and (c) exposing the effluent from the first stage catalyst to an oxidation catalyst that is effective in ensuring that the NO, HC, and CO in the emissions are each converted to at least 80%.
摘要翻译：一种用于在贫燃料流（即含有SO 2，H 2 O，H 2和相当多的氧）中获得NO，HC和CO的高转化率的催化剂体系，所述系统包括：（a）第一级还原催化剂处理一氧化氮排放，含有高酸性γ氧化铝的催化剂（即pHpzc小于3）; （b）用于在进入所述第一级催化剂之前将气态或液态还原剂注入所述排放流中的装置，所述第一级催化剂温度选择在550-650℃范围内。和（c）有效处理来自第一级催化剂的流出物的氧化催化剂。本发明的另一方面是一种从具有0.02-0.09的氧化还原比的化石燃料内燃机的来自贫燃料的排放流中处理废气的方法，所述方法包括：（a）将气态或液态HC 或氧化的HC还原剂进入流在550-650℃的温度范围内的排放流中。（b）将注射的流体立即暴露于含有Phpzc小于3的酸性γ氧化铝的第一级催化剂; 和（c）将来自第一阶段催化剂的流出物暴露于有效确保排放物中的NO，HC和CO各自转化为至少80％的氧化催化剂。

8. 发明授权

US5766562A Diesel emission treatment using precious metal on titania aerogel 失效
标题翻译：在二氧化钛气凝胶上使用贵金属的柴油排放处理
公开(公告)号：US5766562A
公开(公告)日：1998-06-16
申请号：US814068
申请日：1997-03-10
申请人： Mohinder S. Chattha , Tjenga E. Hoost , Robert J. Kudla
发明人： Mohinder S. Chattha , Tjenga E. Hoost , Robert J. Kudla
IPC分类号： B01D53/94 , B01J23/40 , B01J23/42
CPC分类号： B01D53/945 , B01J23/40 , Y02T10/22
摘要： The invention is a method for treating exhaust gases generated by a diesel engine by providing a sulfur-tolerant lean-NOx catalyst in an exhaust gas passage of the engine and contacting the catalyst with the exhaust gases. The sulfur-tolerant lean-NOx catalyst comprises a support of titania aerogel; and loaded thereon, using impregnation techniques from a solution of their precursors, at least 0.25 weight percent precious metal selected from platinum, palladium, rhodium, or mixtures thereof. The method converts the hydrocarbons, carbon monoxide and nitrogen oxides into more desirable gases. In particular, the NOx is converted to N.sub.2 and O.sub.2 over the catalyst.
摘要翻译：本发明是一种通过在发动机的排气通道中提供耐硫稀土氧化物催化剂并使催化剂与废气接触来处理由柴油发动机产生的废气的方法。耐硫稀土氧化物催化剂包括二氧化钛气凝胶的载体; 并使用浸渍技术从其前体溶液中加入至少0.25重量％的选自铂，钯，铑或其混合物的贵金属。该方法将烃，一氧化碳和氮氧化物转化成更理想的气体。特别地，NOx在催化剂上转化为N 2和O 2。

9. 发明授权

US5208205A Catalyst system for converting emissions of a lean-burn engine 失效
标题翻译：用于转换发动机排放的催化剂体系
公开(公告)号：US5208205A
公开(公告)日：1993-05-04
申请号：US772410
申请日：1991-10-07
申请人： Somasundaram Subramanian , Robert J. Kudla , Mohinder S. Chattha
发明人： Somasundaram Subramanian , Robert J. Kudla , Mohinder S. Chattha
IPC分类号： B01D53/94 , B01J21/04 , F01N3/20 , F01N13/02
CPC分类号： F01N3/2066 , B01D53/9459 , B01J21/04 , F01N13/009 , B01D2251/208 , B01D2251/21 , B01D2255/1023 , B01D53/9418 , B01D53/944 , F01N2610/03 , Y02T10/24
摘要： A catalyst system for attaining high conversions of NO, HC, and CO in a fuel-lean emission flow (i.e., containing SO.sub.2, H.sub.2 O, H.sub.2, and considerable excess oxygen), the system comprising: (a) a first stage reducing catalyst for treating the nitric oxide emissions, the catalyst containing highly acidic gamma alumina (i.e., with a pH.sub.pzc of less than 3); (b) means for injecting gaseous or liquid reductants into the emission stream prior to entering said first stage catalyst, said first stage catalyst temperature being selected to be in the range of 550.degree.-650.degree. C.; and (c) an oxidation catalyst effective for treating the effluent from the first stage catalyst.Another aspect of this invention is a method of treating the exhaust gas from a fuel-lean emission flow from a fossil-fueled internal combustion engine having a redox ratio of 0.02-0.09, the method comprising: (a) injecting a gaseous or liquid HC or oxygenated HC reductant into the emission stream at a location where the stream is within the temperature range of 550.degree.-650.degree. C.; (b) immediately exposing the injected stream to a first stage catalyst containing acidic gamma alumina with a pH.sub.pzc of less than 3; and (c) exposing the effluent from the first stage catalyst to an oxidation catalyst that is effective in ensuring that the NO, HC, and CO in the emissions are each converted to at least 80%.

10. 发明授权

US10476100B2 Lithium-containing electrode material for electrochemical cell systems 有权
公开(公告)号：US10476100B2
公开(公告)日：2019-11-12
申请号：US12896976
申请日：2010-10-04
申请人： Chi Paik , Robert J. Kudla , Andrew Robert Drews
发明人： Chi Paik , Robert J. Kudla , Andrew Robert Drews
IPC分类号： H01M4/525 , H01M10/0525
摘要： An electrode material is provided to include a Li-containing oxide of the formula of Li(NixCoyMz)O2, wherein M is an element different from Li, Ni, Co, or O, wherein x, y, and z are each independently between 0 and 1 and the sum of x, y, z is 1; and an oxygen scavenger material contacting at least a portion of the Li-containing oxide. In another embodiment, the electrode material further includes a second Li-containing oxide having the formula of Li(Nix2Coy2Mz2)O2, wherein M is an element different from Li, Ni, Co, or O, wherein x2, y2, and z2 are each independently between 0 and 1 and the sum of x2, y2, z2 is 1, wherein the oxide composite is configured as a first material layer, wherein the second Li-containing oxide is configured as a second material layer disposed next to the first material layer.

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