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1. 发明授权

US5908806A Copper-silver zeolite catalysts 失效
标题翻译：铜 - 银沸石催化剂
公开(公告)号：US5908806A
公开(公告)日：1999-06-01
申请号：US857640
申请日：1997-05-16
申请人： Karl C. C. Kharas
发明人： Karl C. C. Kharas
IPC分类号： B01D53/94 , B01J29/068 , B01J29/072 , B01J29/44 , B01J29/46 , B01J29/68 , B01J29/76 , B01J29/06
CPC分类号： B01D53/945 , B01J29/068 , B01J29/072 , B01J29/44 , B01J29/46 , Y02T10/22
摘要： A catalyst for the removal of carbon monoxide, hydrocarbons and nitrogen oxides in an exhaust gas made by a process comprising:a) preparing a suspension comprising a liquid, a zeolite, a weak base, and salts of copper and silver,said zeolite being crystalline and having a Si/Al atomic ratio between about 5 and about 100, a pore size between about 0.5 nm and about 1.3 nm, essentially no octahedral aluminum detectable by .sup.27 Al NMR spectroscopy and a sodium ion exchange capacity, with regard to total aluminum content, greater than 75%, and wherein said suspension contains sufficient amounts of said copper and silver salts to result in a copper content in said catalyst, when finished, between about 0.5 wt. % and about 12 wt. % and a silver content between about 0.25 wt. % and about 20 wt. %;b) adding a sufficient amount of a strong base to raise the pH of the suspension to between about 7 and about 9, thereby creating a metal-containing zeolite support in said suspension;c) separating the support from said liquid;d) dispersing said support on a substrate; ande) drying and calcining the product of step (d).
摘要翻译：一种用于除去废气中的一氧化碳，烃和氮氧化物的催化剂，其通过包括以下步骤的方法制备：a）制备包含液体，沸石，弱碱和铜和银的盐的悬浮液，所述沸石是结晶并且Si / Al原子比在约5至约100之间，孔径在约0.5nm至约1.3nm之间，基本上没有可通过27Al NMR光谱检测的八面体铝和钠离子交换容量，关于总铝含量，大于75％，并且其中所述悬浮液含有足够量的所述铜和银盐，以使所述催化剂中的铜含量在完成时在约0.5wt。％和约12wt。％，银含量在约0.25wt。％和约20wt。％; b）加入足够量的强碱以将悬浮液的pH提高至约7至约9，从而在所述悬浮液中产生含金属的沸石载体; c）将载体与所述液体分离; d）将所述载体分散在基材上; 和e）干燥和煅烧步骤（d）的产物。

2. 发明授权

US5897846A Catalytic converter having a catalyst with noble metal on molecular sieve crystal surface and method of treating diesel engine exhaust gas with same 失效
标题翻译：具有分子筛结晶表面上的贵金属催化剂的催化转化器及其与柴油发动机废气的处理方法
公开(公告)号：US5897846A
公开(公告)日：1999-04-27
申请号：US788214
申请日：1997-01-27
申请人： Karl C. C. Kharas , Heinz J. Robota
发明人： Karl C. C. Kharas , Heinz J. Robota
IPC分类号： F01N3/10 , B01D53/94 , B01J29/068 , B01J37/02 , B01J8/00 , B01J8/02 , B01D53/00
CPC分类号： B01D53/945 , B01J29/068 , B01J37/0246 , B01D2255/102 , B01D2255/104 , B01D2255/106 , B01D2255/50 , B01D2255/9202 , B01J37/0211 , Y02T10/22
摘要： A catalytic converter for treating exhaust gas from an internal combustion engine containing a catalyst characterized by having platinum or a platinum alloy dispersed predominately on the exterior surface of molecular sieve crystals. Also provided is a catalyst for such a converter and processes for manufacture of such catalyst. In addition, a process for treating exhaust gas from an internal combustion engine to reduce the amounts of hydrocarbon, carbon monoxide and nitrogen oxides emitted to the atmosphere is included.
摘要翻译：一种用于处理含有催化剂的内燃机的废气的催化转化器，其特征在于在分子筛结晶的外表面上主要分布铂或铂合金。还提供了用于这种转化器的催化剂和用于制造这种催化剂的方法。此外，包括用于处理来自内燃机的废气以减少排放到大气中的烃，一氧化碳和氮氧化物的量的方法。

3. 发明授权

US5894068A Reduction of NO.sub.x in the exhaust gases from internal combustion engines containing excess oxygen 失效
标题翻译：减少含有过量氧气的内燃机废气中的NOx
公开(公告)号：US5894068A
公开(公告)日：1999-04-13
申请号：US990216
申请日：1992-12-14
申请人： Karl C. C. Kharas , Michael George Henk , Heinz Juergen Robota
发明人： Karl C. C. Kharas , Michael George Henk , Heinz Juergen Robota
IPC分类号： B01D53/94 , B01J35/00 , C40B30/08 , C40B40/18 , B01J23/56
CPC分类号： B01D53/945 , B01D53/9418 , B01D53/9454 , B01J35/0006 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/2042 , B01D2255/20746 , B01J2219/007 , B01J2219/00745 , B01J2219/00747 , C40B30/08 , C40B40/18 , Y02T10/22 , Y02T10/24
摘要： Removal of carbon monoxide, hydrocarbons, and nitrogen oxides from the exhaust gas from lean-burn, diesel and other engines which produce exhaust gases containing excess oxygen is provided by at least two catalysts in sequence, each capable of reducing nitrogen oxides within a particular range of engine operating temperatures. Oxidation of the remaining reducing gases is also accomplished.
摘要翻译：从产生含有过量氧气的废气的来自稀燃燃烧的柴油和其它发动机中排除一氧化碳，碳氢化合物和氮氧化物由至少两种依次提供的催化剂提供，每种催化剂能够还原特定范围内的氮氧化物的发动机工作温度。还实现了剩余还原气体的氧化。

4. 发明授权

US07297656B2 Particulate filter and method for treating soot 有权
标题翻译：颗粒过滤器和处理烟灰的方法
公开(公告)号：US07297656B2
公开(公告)日：2007-11-20
申请号：US10735035
申请日：2003-12-12
申请人： Wenzhong Zhang , Karl C. C. Kharas
发明人： Wenzhong Zhang , Karl C. C. Kharas
IPC分类号： B01J23/42
CPC分类号： B01J23/002 , B01D53/945 , B01D2255/1021 , B01D2255/202 , B01D2255/2025 , B01J23/58 , B01J37/036 , B01J2523/00 , Y02T10/22 , B01J2523/11 , B01J2523/31 , B01J2523/828
摘要： In one embodiment, a particulate filter includes a housing and a substrate disposed within the housing, the substrate comprising a catalyst composition comprising a single crystalline phase multiple metal oxide comprising platinum, wherein the substrate is designed such that gas flowing through the substrate, passes through a walls in the substrate prior to exiting the substrate.
摘要翻译：在一个实施方案中，颗粒过滤器包括壳体和设置在壳体内的基底，该基底包含催化剂组合物，该催化剂组合物包含包含铂的单晶相多重金属氧化物，其中基底被设计成使得流过基底的气体通过在离开衬底之前的衬底中的壁。

5. 发明授权

US06365118B1 Reduction of NOx in the exhaust from leanOx internal combustion engines 有权
标题翻译：减少来自稀燃内燃机的排气中的NOx
公开(公告)号：US06365118B1
公开(公告)日：2002-04-02
申请号：US09387083
申请日：1999-08-31
申请人： Karl C. C. Kharas , Heinz J. Robota
发明人： Karl C. C. Kharas , Heinz J. Robota
IPC分类号： B01D5394
CPC分类号： B01D53/945 , B01D53/9418 , B01D53/9454 , B01D2251/208 , B01D2255/1021 , B01D2255/1025 , B01D2255/104 , B01D2255/2042 , B01D2255/20746 , B01D2255/20761 , B01D2255/9207 , B01J35/0006 , B01J2219/007 , B01J2219/00745 , B01J2219/00747 , C40B30/08 , C40B40/18 , Y02T10/22 , Y02T10/24
摘要： A process for removal of carbon monoxide, hydrocarbons, and nitrogen oxides from the exhaust gas from lean-burn, diesel and other engines which produce exhaust gases containing excess oxygen is disclosed. An exhaust gas from an engine operating at an air-fuel ratio above about 18 is contacted with a multi-component catalyst having at least two catalytic components, each capable of reducing nitrogen oxides within a range of exhaust gas temperatures that is different from the range of exhaust gas temperatures within which each other component is capable of reducing nitrogen oxides. Oxidation of the remaining reducing gases is also accomplished. One example of a two catalytic component catalyst of this invention has a first component of Au supported on alumina, which reduces nitrogen oxides at exhaust gas temperatures between about 600° C. and 900° C., and a second component of Pt supported on Y-zeolite, which reduces nitrogen oxides at exhaust gas temperatures below 600° C.; an example of a three catalytic component catalyst of this invention has a first component of CoO supported on &ggr;-alumina, which reduces nitrogen oxides at exhaust gas temperatures above about 475° C., a second component of an alloy of Pt, Rh and Co supported on BaO2-stabilized &dgr;-alumina, which reduces nitrogen oxides at exhaust gas temperatures between about 315° C. and about 475° C. and a third component of an alloy of Pt and Rh supported on &ggr;-alumina, which reduces nitrogen oxides at exhaust gas temperatures between about 200° C. and about 425° C.
摘要翻译：公开了从产生含有过量氧气的废气的来自稀燃燃烧，柴油和其它发动机的废气中除去一氧化碳，碳氢化合物和氮氧化物的方法。来自以大于约18的空燃比工作的发动机的废气与具有至少两个催化组分的多组分催化剂接触，每个催化组分能够在不同于范围的废气温度范围内还原氮氧化物的排气温度，其中每个其它组分能够还原氮氧化物。还实现了剩余还原气体的氧化。本发明的两种催化组分催化剂的一个实例具有负载在氧化铝上的Au的第一组分，其在约600℃和900℃之间的废气温度下还原氮氧化物，并且在Y上负载的Pt的第二组分沸石，其在低于600℃的废气温度下还原氮氧化物; 本发明的三种催化组分催化剂的实例具有负载在γ-氧化铝上的CoO的第一组分，其在高于约475℃的废气温度下还原氮氧化物，Pt，Rh和Co的合金的第二组分负载在BaO 2稳定的δ-氧化铝上，其在约315℃至约475℃的废气温度下还原氮氧化物，并且负载在γ-氧化铝上的Pt和Rh的合金的第三组分，其还原氮氧化物在约200℃至约425℃的废气温度下

6. 发明授权

US5972820A Methods of making stabilized crystalline alumina compositions, and alumina compositions and catalyst supports made therefrom 有权
标题翻译：制备稳定的结晶氧化铝组合物的方法以及由其制成的氧化铝组合物和催化剂载体
公开(公告)号：US5972820A
公开(公告)日：1999-10-26
申请号：US234143
申请日：1999-01-19
申请人： Karl C. C. Kharas , Roy T. Mitsche , Heinz J. Robota , Michael G. Gatter
发明人： Karl C. C. Kharas , Roy T. Mitsche , Heinz J. Robota , Michael G. Gatter
IPC分类号： B01J21/04 , C01F7/00 , C04B35/10
CPC分类号： B01J21/04 , C01F7/00 , C01P2004/61 , C01P2006/12 , Y10S977/776
摘要： Methods of making substantially phase-pure and thermally stable crystalline alumina compositions stabilized with an oxide of silicon, germanium, phosphorus, arsenic or a mixture thereof. Also provided are crystalline alumina compositions and catalyst supports made using these methods.
摘要翻译：制备用硅，锗，磷，砷或其混合物的氧化物稳定的基本上纯相和热稳定的结晶氧化铝组合物的方法。还提供了使用这些方法制备的结晶氧化铝组合物和催化剂载体。

7. 发明授权

US5877106A Stabilized crystalline alumina compositions 失效
标题翻译：稳定的结晶氧化铝组合物
公开(公告)号：US5877106A
公开(公告)日：1999-03-02
申请号：US778668
申请日：1997-01-03
申请人： Karl C. C. Kharas , Roy T. Mitsche , Heinz J. Robota , Michael G. Gatter
发明人： Karl C. C. Kharas , Roy T. Mitsche , Heinz J. Robota , Michael G. Gatter
IPC分类号： B01J21/04 , C01F7/00 , C04B35/10
CPC分类号： B01J21/04 , C01F7/00 , C01P2004/61 , C01P2006/12 , Y10S977/776
摘要： New thermally- and hydrothermally-stable .delta.-alumina compositions stabilized with an oxide of silicon, germanium, phosphorus, arsenic or a mixture thereof and methods of preparation of same are provided. Also provided are catalyst supports and catalysts made using these stabilized .delta.-alumina compositions, methods for making same, and methods for treating the exhaust gas from an internal combustion engine using such catalysts.
摘要翻译：提供用硅，锗，磷，砷或其混合物的氧化物稳定的新的热和水热稳定的δ-氧化铝组合物及其制备方法。还提供了使用这些稳定的δ-氧化铝组合物制备的催化剂载体和催化剂，其制备方法，以及使用这种催化剂处理来自内燃机的废气的方法。

8. 发明授权

US5389589A Barium-containing alumina 失效
标题翻译：含钡氧化铝
公开(公告)号：US5389589A
公开(公告)日：1995-02-14
申请号：US994838
申请日：1992-12-22
申请人： Karl C. C. Kharas
发明人： Karl C. C. Kharas
IPC分类号： B01J23/02 , C01F7/02 , C04B35/111 , C04B35/624 , C04B35/10
CPC分类号： C04B35/111 , C04B35/624
摘要： The present invention is a barium-containing alumina with the X-ray pattern of the FIGURE. The alumina may be synthesized by simultaneously adding a polyether or a polyalcohol and an aqueous solution of a water soluble barium carboxylate to an aqueous boehmite sol or suspension to form a gel, the gel having a polyether or polyalcohol content of about 2 wt. % to about 26 wt. %, preferably about 10 wt. % to about 20 wt. %. The gel is then dried and calcined to convert it to an essentially pure barium-containing delta alumina. The alumina may be optionally hydrothermally treated to induce further crystallization. The final product contains about 2 wt. % to about 18 wt. % Ba, preferably about 8 wt. % to about 12 wt. %.
摘要翻译：本发明是具有图的X射线图案的含钡氧化铝。氧化铝可以通过将聚醚或多元醇和水溶性羧酸钡的水溶液同时加入到勃姆石溶液或悬浮液中以形成凝胶来合成，该凝胶具有约2重量％的聚醚或多元醇含量。％至约26wt。％，优选约10wt。％至约20wt。％。然后将凝胶干燥并煅烧以将其转化为基本上纯的含钡的δ氧化铝。氧化铝可以任选地进行水热处理以诱导进一步结晶。最终产品含有约2重量％％至约18wt。％Ba，优选约8wt。％至约12wt。％。

9. 发明授权

US06235255B1 Catalyst support having zeolite with high sodium back ion-exchange capacity and catalysts made therefrom 失效
标题翻译：具有高钠离子交换能力的沸石和由其制备的催化剂的催化剂载体
公开(公告)号：US06235255B1
公开(公告)日：2001-05-22
申请号：US09316234
申请日：1999-05-21
申请人： Karl C. C. Kharas
发明人： Karl C. C. Kharas
IPC分类号： B01J800
CPC分类号： B01D53/945 , B01J23/40 , B01J29/06 , B01J29/068 , B01J29/44 , B01J2229/42 , Y02T10/22
摘要： The present invention relates to catalyst support comprising an inorganic oxide, preferably alumina, and zeolite in the proton form and having a high Si/Al ratio, wherein the zeolite is selected from those protonated zeolites that would exhibit a high Na/Al mole ratio if treated with a solution of sodium nitrate until all sites that will accept a sodium ion have done so. This invention also relates to catalyst that is made from such support, to a method of treating exhaust gas from “lean-burn” engines using catalyst of this invention, and to a method for determining if a zeolite is a suitable support component.
摘要翻译：本发明涉及包含无机氧化物，优选氧化铝的催化剂载体和质子形式的沸石，并且具有高Si / Al比，其中沸石选自将表现出高Na / Al摩尔比的那些质子化沸石，如果用硝酸钠溶液处理，直到接受钠离子的所有部位都这样做。本发明还涉及由这种载体制成的催化剂，使用本发明的催化剂处理来自“稀薄燃烧”发动机的废气的方法，以及一种确定沸石是否是合适的载体组分的方法。

10. 发明授权

US6087295A Reduction of NO.sub.x in the exhaust gases from internal combustion engines containing excess oxygen 失效
标题翻译：减少含有过量氧气的内燃机废气中的NOx
公开(公告)号：US6087295A
公开(公告)日：2000-07-11
申请号：US107673
申请日：1998-06-30
申请人： Karl C. C. Kharas , Heinz J. Robota
发明人： Karl C. C. Kharas , Heinz J. Robota
IPC分类号： B01D53/94 , B01J35/00 , C40B30/08 , C40B40/18 , B01J21/04 , B01J29/04
CPC分类号： B01D53/945 , B01D53/9418 , B01D53/9454 , B01J35/0006 , B01D2251/208 , B01D2255/1021 , B01D2255/1025 , B01D2255/104 , B01D2255/2042 , B01D2255/20746 , B01D2255/20761 , B01D2255/9207 , B01J2219/007 , B01J2219/00745 , B01J2219/00747 , C40B30/08 , C40B40/18 , Y02T10/22 , Y02T10/24
摘要： Removal of carbon monoxide, hydrocarbons, and nitrogen oxides from the exhaust gas from lean-burn, diesel and other engines which produce exhaust gases containing excess oxygen is provided by a multi-component catalyst having at least two catalytic components, each capable of reducing nitrogen oxides within a range of exhaust gas temperatures that is different from the range of exhaust gas temperatures within which each other component is capable of reducing nitrogen oxides. Oxidation of the remaining reducing gases is also accomplished. One example of a two catalytic component catalyst of this invention has a first component of Au supported on alumina, which reduces nitrogen oxides at exhaust gas temperatures between about 600.degree. C. and 900.degree. C., and a second component of Pt supported on Y-zeolite, which reduces nitrogen oxides at exhaust gas temperatures below 600.degree. C.; an example of a three catalytic component catalyst of this invention has a first component of CoO supported on .gamma.-alumina, which reduces nitrogen oxides at exhaust gas temperatures above about 475.degree. C., a second component of an alloy of Pt, Rh and Co supported on BaO.sub.2 -stabilized .delta.-alumina, which reduces nitrogen oxides at exhaust gas temperatures between about 315.degree. C. and about 475.degree. C. and a third component of an alloy of Pt and Rh supported on .alpha.-alumina, which reduces nitrogen oxides at exhaust gas temperatures between about 200.degree. C. and about 425.degree. C. A method of selecting such catalysts is also provided.
摘要翻译：通过具有至少两种能够还原氮的催化剂组分的多组分催化剂来提供从产生含有过量氧气的废气的来自稀燃燃烧的废气，柴油和其它发动机中除去一氧化碳，碳氢化合物和氮氧化物废气温度范围内的氧化物不同于其中每个其它组分能够还原氮氧化物的废气温度的范围。还实现了剩余还原气体的氧化。本发明的两种催化组分催化剂的一个实例具有负载在氧化铝上的Au的第一组分，其在约600℃和900℃之间的废气温度下还原氮氧化物，并且在Y上负载的Pt的第二组分沸石，其在低于600℃的废气温度下还原氮氧化物。本发明的三催化组分催化剂的实例具有负载在γ-氧化铝上的CoO的第一组分，其在高于约475℃的废气温度下还原氮氧化物，Pt，Rh和Co的合金的第二组分负载在BaO 2稳定的δ-氧化铝上，其在约315℃至约475℃的废气温度下还原氮氧化物，并且负载在α-氧化铝上的Pt和Rh的合金的第三组分，其还原氮氧化物在约200℃至约425℃的废气温度下。还提供了选择这种催化剂的方法。

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