专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US08377400B2 Methods and systems for oxidizing nitric oxide in a gas stream 有权
标题翻译：在气流中氧化一氧化氮的方法和系统
公开(公告)号：US08377400B2
公开(公告)日：2013-02-19
申请号：US12956979
申请日：2010-11-30
申请人： Steven J. Schmieg , Chang H Kim , Gongshin Qi , Wei Li , David B. Brown
发明人： Steven J. Schmieg , Chang H Kim , Gongshin Qi , Wei Li , David B. Brown
IPC分类号： B01D53/56 , B01D53/74 , B01D53/86 , B01D53/94 , F01N3/10
CPC分类号： B01D53/9477 , B01D53/9409 , B01D53/944 , B01D2251/2062 , B01D2251/2067 , B01D2255/204 , B01D2255/206 , B01D2255/2063 , B01D2255/2073 , B01D2255/20746 , B01D2255/402 , B01D2255/65 , B01D2258/012 , B01J23/002 , B01J37/0036 , B01J37/0215 , B01J37/0236 , B01J2523/00 , B01J2523/24 , B01J2523/3706 , B01J2523/845 , B01J2523/72
摘要： An after-treatment system architecture and method for oxidizing the nitric oxide component of a gas stream are disclosed. One embodiment may include treatment of a gas stream that includes NOx with a perovskite catalyst of the general formula ABO3 or a modified formula of ABO3 wherein a small amount of a promoter material is substituted for a portion of at least one of element A or element B in a catalytic oxidation reaction to oxidize nitric oxide in the gas stream.
摘要翻译：公开了用于氧化气流的一氧化氮组分的后处理系统结构和方法。一个实施方案可以包括使用通式ABO 3的钙钛矿催化剂或ABO 3的改性式处理包括NOx的气流，其中少量促进剂材料代替元素A或元素B中的至少一种的一部分在催化氧化反应中氧化气流中的一氧化氮。

22. 发明授权

US08318119B2 Method for preparing perovskite oxide-based catalyst particles 有权
标题翻译：制备基于钙钛矿氧化物的催化剂颗粒的方法
公开(公告)号：US08318119B2
公开(公告)日：2012-11-27
申请号：US12971822
申请日：2010-12-17
申请人： Gongshin Qi , Wei Li
发明人： Gongshin Qi , Wei Li
IPC分类号： C01F17/00
CPC分类号： C01G45/1264 , B01J23/002 , B01J23/34 , B01J35/0006 , B01J35/04 , B01J37/0036 , B01J37/0215 , B01J37/036 , B01J37/038 , B01J37/04 , B01J2523/00 , C01P2002/34 , C01P2006/12 , B01J2523/3706 , B01J2523/72 , B01J2523/24
摘要： A high-surface area fine particle dispersal of LaMnO3 or a promoted derivation of LaMnO3 may be prepared by the citrate method. The amount of citric acid used to complex the constituent metal cations into citrate complexed mixed metal compounds may range from about 40 mol % to about 100 mol % in excess of stoichiometry.
摘要翻译： LaMnO3的高表面积微粒分散或LaMnO3的促进衍生可以通过柠檬酸盐法制备。用于将组成金属阳离子络合成柠檬酸盐络合的混合金属化合物的柠檬酸的量可以在超过化学计量的范围内为约40mol％至约100mol％。

23. 发明申请

US20120167553A1 EXHAUST AFTERTREATMENT SYSTEMS THAT INCLUDE AN AMMONIA-SCR CATALYST PROMOTED WITH AN OXYGEN STORAGE MATERIAL 有权
标题翻译：包含用氧气储存材料促进的氨氮SCR催化剂的排气后处理系统
公开(公告)号：US20120167553A1
公开(公告)日：2012-07-05
申请号：US12980396
申请日：2010-12-29
申请人： Gongshin Qi , Chang H. Kim , Wei Li , Steven J. Schmieg
发明人： Gongshin Qi , Chang H. Kim , Wei Li , Steven J. Schmieg
IPC分类号： F01N3/18 , F01N3/10
CPC分类号： B01D53/9454 , B01D53/9431 , B01D53/9495 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/20738 , B01D2255/20761 , B01D2255/407 , B01D2255/50 , B01D2255/908 , F01N3/0864 , F01N3/101 , F01N3/2073 , F01N3/2803 , F01N13/009 , F01N13/0093 , F01N2340/02 , F01N2430/06 , F01N2510/063 , F01N2560/025 , F01N2900/08 , Y02T10/22
摘要： A low-oxygen content exhaust flow produced by an engine that is combusting, on average, a stoichiometric mixture of air and fuel generally contains various unwanted gaseous emissions. The exhaust flow is treated by an exhaust aftertreatment system that includes a three-way-catalyst (TWC) and an ammonia-selective catalytic reduction (ammonia-SCR) catalyst positioned downstream from the TWC in a flow direction of the exhaust flow. The ammonia-SCR catalyst includes (1) a base metal ion-substituted zeolite and/or a base metal ion-substituted silicoaluminophosphate and (2) an oxygen storage material selected from the group consisting of a metal oxide or a mixed metal oxide that exhibits oxygen storage and release capacity. The serial arrangement of the TWC and the ammonia-SCR catalyst enhances the conversion of NOX to N2 in the low oxygen-content exhaust flow produced by the engine and helps prevent ammonia slip to the atmosphere.
摘要翻译：燃烧平均而言，空气和燃料的化学计量混合物的发动机产生的低氧含量排气通常含有各种不需要的气体排放物。废气处理系统通过排气后处理系统进行处理，该排气后处理系统包括在排气流动方向上位于TWC下游的三元催化剂（TWC）和氨选择性催化还原（氨-SCR）催化剂。氨-SCR催化剂包括（1）贱金属离子取代的沸石和/或贱金属离子取代的硅铝磷酸盐和（2）选自金属氧化物或混合金属氧化物的储氧材料，其表现出储氧释放能力。 TWC和氨-SCR催化剂的串联排列增强了由发动机产生的低氧含量排气流中NOX向N2的转化，有助于防止氨向大气中流失。

24. 发明申请

US20120047874A1 BI-FUNCTIONAL CATALYST MATERIALS FOR LEAN EXHAUST NOx REDUCTION 有权
标题翻译：用于降低排放NOx还原的双功能催化剂材料
公开(公告)号：US20120047874A1
公开(公告)日：2012-03-01
申请号：US12870349
申请日：2010-08-27
申请人： Steven J. Schmieg , Gongshin Qi , Wei Li , Chang H. Kim
发明人： Steven J. Schmieg , Gongshin Qi , Wei Li , Chang H. Kim
IPC分类号： F01N3/00 , F01N3/10
CPC分类号： B01D53/9418 , B01D53/9477 , B01D2251/2062 , B01D2255/204 , B01D2255/2063 , B01D2255/2073 , B01D2255/20738 , B01D2255/20746 , B01D2255/402 , B01D2255/502 , B01D2258/012 , B01J23/002 , B01J23/34 , B01J23/83 , B01J29/7615 , B01J29/763 , B01J37/0228 , B01J37/0244 , B01J37/0246 , B01J2523/00 , F01N3/101 , F01N3/103 , F01N3/2066 , F01N13/009 , Y02T10/22 , Y02T10/24 , B01J2523/24 , B01J2523/3706 , B01J2523/845
摘要： A bi-functional catalyst material, a SCR converter that includes the bi-functional catalyst material, an exhaust aftertreatment system that includes the SCR converter, and a method for removing NOX contained in an exhaust flow produced by a lean-burn engine are disclosed. The bi-functional catalyst material can (1) oxidize NO to NO2 and (2) selectively reduce NOX to N2 when exposed to an exhaust mixture that comprises the exhaust flow from the lean-burn engine and a suitable reductant. The bi-functional catalyst material comprises metal oxide particles selected from the group consisting of perovskite oxide particles and manganese-based mixed metal oxide particles dispersed on a selective catalytic reduction (SCR) catalyst.
摘要翻译：公开了一种双功能催化剂材料，包括双功能催化剂材料的SCR转化器，包括SCR转化器的排气后处理系统，以及用于消除由稀燃燃烧发动机产生的排气流中所含的NOX的方法。双功能催化剂材料可以（1）将NO氧化为NO 2，和（2）当暴露于包含来自稀燃发动机的排气流和排气合适的还原剂的排气混合物时，选择性地将NO x还原为N 2。双功能催化剂材料包括选自分散在选择性催化还原（SCR）催化剂上的钙钛矿氧化物颗粒和锰基混合金属氧化物颗粒的金属氧化物颗粒。

25. 发明申请

US20120042631A1 CATALYST MATERIALS FOR AMMONIA OXIDATION IN LEAN-BURN ENGINE EXHAUST 审中-公开
标题翻译：催化发动机排气中氨氧化物的催化材料
公开(公告)号：US20120042631A1
公开(公告)日：2012-02-23
申请号：US12860180
申请日：2010-08-20
申请人： Steven J. Schmieg , Wei Li , Chang H. Kim , Gongshin Qi
发明人： Steven J. Schmieg , Wei Li , Chang H. Kim , Gongshin Qi
IPC分类号： F01N3/00 , F01N3/10 , F01N3/035
CPC分类号： B01J23/002 , B01D53/9418 , B01D53/9422 , B01D53/9436 , B01D53/944 , B01D53/9463 , B01D53/9477 , B01D2255/204 , B01D2255/2063 , B01D2255/2073 , B01D2255/20738 , B01D2255/20746 , B01D2255/402 , B01D2255/502 , B01D2258/012 , B01J23/83 , B01J29/7615 , B01J37/0244 , B01J37/0246 , B01J2523/00 , F01N3/101 , F01N3/106 , F01N3/208 , F01N2610/02 , F01N2900/1616 , Y02T10/22 , Y02T10/24 , B01J2523/24 , B01J2523/3706 , B01J2523/845
摘要： An exhaust aftertreatment system and a method for treating exhaust produced by a lean-burn engine are provided. The exhaust aftertreatment system may include an exhaust gas treatment subsystem and a clean-up oxidation catalyst located downstream of the exhaust gas treatment subsystem. The clean-up oxidation catalyst can selectively oxidize NH3 to N2 in the hot, oxygen-abundant exhaust flow emanated from the lean-burn engine and passed through the exhaust gas treatment subsystem to help prevent ammonia slip to the atmosphere. The clean-up oxidation catalyst comprises perovskite oxide particles and/or manganese-containing mixed metal oxide particles dispersed on a selective catalytic reduction (SCR) catalyst.
摘要翻译：提供排气后处理系统和用于处理由稀薄燃烧发动机产生的废气的方法。排气后处理系统可以包括排气处理子系统和位于废气处理子系统下游的净化氧化催化剂。清理氧化催化剂可以在从贫燃发动机发出的热，富含氧气的排气中选择性地将NH 3氧化成N2，并通过废气处理子系统，以帮助防止氨向大气中的流失。清理氧化催化剂包括分散在选择性催化还原（SCR）催化剂上的钙钛矿氧化物颗粒和/或含锰混合金属氧化物颗粒。

26. 发明授权

US08057767B1 Base metal oxides oxidation catalyst 有权
标题翻译：碱金属氧化物氧化催化剂
公开(公告)号：US08057767B1
公开(公告)日：2011-11-15
申请号：US12853357
申请日：2010-08-10
申请人： Gongshin Qi , Wei Li
发明人： Gongshin Qi , Wei Li
IPC分类号： B01D53/56 , B01D53/94
CPC分类号： B01D53/944 , B01D2255/1021 , B01D2255/1023 , B01D2255/2061 , B01D2255/2065 , B01D2255/20715 , B01D2255/2073 , B01D2257/502 , B01D2257/702 , B01J23/34 , Y02A50/2341
摘要： Chemical species such as nitrogen oxide (NO), carbon monoxide, and low molecular weight hydrocarbons (e.g., C1-C5 and saturated or ethylenically unsaturated) in an oxygen-containing gas stream, such as the exhaust stream from a diesel engine, or other lean burn engine, may be oxidized using a mixture of MnOx with one or more other base metal oxides, with or without palladium. The oxidation is effective at temperatures above about 200° C. to convert about ninety percent or more of the carbon monoxide to carbon dioxide and to consume the hydrocarbons. The oxidation is also effective to convert much of the NO to NO2. In general, the mixed base metal oxides may be used as catalysts for the oxidation of nitrogen oxide in hot gas streams containing oxygen. They may optionally be used in a combination with palladium or platinum. But platinum, which is very expensive, does not have to be used in such oxidation reactions.
摘要翻译：含氧气体流中的诸如氮氧化物（NO），一氧化碳和低分子量烃（例如，C1-C5和饱和或烯属不饱和的）的化学物质，例如来自柴油发动机的排气流或其它贫燃机可以使用MnO x与一种或多种其它碱金属氧化物的混合物进行氧化，有或没有钯。氧化在高于约200℃的温度下是有效的，以将大约九十％或更多的一氧化碳转化成二氧化碳并消耗碳氢化合物。氧化也可以将大部分的NO转化为NO2。通常，混合的贱金属氧化物可以用作用于在含氧的热气流中氧化氮氧化物的催化剂。它们可以任选地与钯或铂组合使用。但是昂贵的铂不必在这种氧化反应中使用。

27. 发明授权

US08959894B2 Manganese-based oxides promoted lean NOx trap (LNT) catalyst 有权
标题翻译：锰类氧化物促进贫NOx捕集（LNT）催化剂
公开(公告)号：US08959894B2
公开(公告)日：2015-02-24
申请号：US13070544
申请日：2011-03-24
申请人： Gongshin Qi , Wei Li
发明人： Gongshin Qi , Wei Li
IPC分类号： F01N3/20 , F01N3/08 , B01D53/94 , B01J37/02 , B01J37/03 , B01J37/04 , B01J35/00 , B01J23/34 , B01J23/63 , B01J23/656 , B01J35/02 , B01J35/04 , B01J37/00 , F01N13/00 , F02B37/00
CPC分类号： F01N3/0814 , B01D53/9422 , B01D53/944 , B01D53/9472 , B01D53/9477 , B01D2255/1023 , B01D2255/1025 , B01D2255/2061 , B01D2255/2065 , B01D2255/20715 , B01D2255/2073 , B01D2255/904 , B01D2255/91 , B01D2258/012 , B01J23/34 , B01J23/63 , B01J23/6562 , B01J35/0006 , B01J35/023 , B01J35/04 , B01J37/0036 , B01J37/0244 , B01J37/031 , B01J37/04 , F01N3/0842 , F01N13/009 , F01N2510/0682 , F02B37/00 , Y02A50/2341 , Y02T10/24
摘要： MnOx-containing, base-metal oxide mixtures (e.g., MnOx—CeO2) are useful NOx oxidation catalyst materials and NOx storage materials in lean-burn engine exhaust gas treatments using Lean NOx Trap (LNT) systems. These oxidation catalyst materials are used in combination with a NOx storage material and a NOx reduction material. MnOx-containing oxide mixtures can replace platinum (Pt) in LNT systems where the exhaust of the engine is repeatedly varied between a relatively long fuel-lean mode of operation and a relatively short fuel-rich mode of operation. The combination of the MnOx oxidation catalyst, NOx storage material, and NOx reduction catalyst material serves to complete the oxidation of unburned hydrocarbons and carbon monoxide, and to convert NOx to nitrogen.
摘要翻译：含MnOx的贱金属氧化物混合物（例如MnO x-CeO 2）是使用精益NOx捕集阱（LNT）系统的贫燃发动机废气处理中的有用的NOx氧化催化剂材料和NOx储存材料。这些氧化催化剂材料与NOx储存材料和NOx还原材料组合使用。含MnOx的氧化物混合物可以代替LNT系统中的铂（Pt），其中发动机的排气在较长的燃料稀燃运行模式和相对较短的富燃料运行模式之间重复变化。 MnOx氧化催化剂，NOx储存材料和NOx还原催化剂材料的组合用于完成未燃烧的烃和一氧化碳的氧化，并将NOx转化为氮气。

28. 发明申请

US20120159927A1 PEROVSKITE OXIDE COMPOUNDS FOR USE IN EXHAUST AFTERTREATMENT SYSTEMS 有权
标题翻译：用于废气处理系统的氧化亚锡化合物
公开(公告)号：US20120159927A1
公开(公告)日：2012-06-28
申请号：US12975449
申请日：2010-12-22
申请人： Wei Li , David B. Brown , Chang H. Kim , Gongshin Qi , Steven J. Schmieg
发明人： Wei Li , David B. Brown , Chang H. Kim , Gongshin Qi , Steven J. Schmieg
IPC分类号： F01N3/10
CPC分类号： F02D41/0275 , B01D53/9422 , B01D2255/402 , B01D2255/407 , B01D2255/9032 , B01D2255/9035 , B01D2255/91 , F01N3/0814 , F01N3/0842 , F01N3/106 , F01N3/2073 , F01N13/009 , F01N2510/0682 , F02D41/1475
摘要： A method for removing NOX from an oxygen-rich exhaust flow produced by a combustion source that is combusting a lean mixture of air and fuel may include passing the oxygen-rich exhaust flow through an exhaust aftertreatment system that includes a NOX oxidation catalyst that includes perovskite oxide particles, a NOX storage catalyst, and a NOX reduction catalyst.
摘要翻译：从燃烧空气和燃料的稀混合物的燃烧源产生的富氧排气流中除去NO x的方法可以包括使富氧排气流通过包括含有钙钛矿的NO x氧化催化剂的排气后处理系统氧化物颗粒，NO x储存催化剂和NO x还原催化剂。

29. 发明申请

US20120157301A1 METHOD FOR PREPARING PEROVSKITE OXIDE-BASED CATALYST PARTICLES 有权
标题翻译：制备基于氧化钛的催化剂颗粒的方法
公开(公告)号：US20120157301A1
公开(公告)日：2012-06-21
申请号：US12971822
申请日：2010-12-17
申请人： Gongshin Qi , Wei Li
发明人： Gongshin Qi , Wei Li
IPC分类号： B01J23/10 , C01F17/00
CPC分类号： C01G45/1264 , B01J23/002 , B01J23/34 , B01J35/0006 , B01J35/04 , B01J37/0036 , B01J37/0215 , B01J37/036 , B01J37/038 , B01J37/04 , B01J2523/00 , C01P2002/34 , C01P2006/12 , B01J2523/3706 , B01J2523/72 , B01J2523/24
摘要： A high-surface area fine particle dispersal of LaMnO3 or a promoted derivation of LaMnO3 may be prepared by the citrate method. The amount of citric acid used to complex the constituent metal cations into citrate complexed mixed metal compounds may range from about 40 mol % to about 100 mol % in excess of stoichiometry.
摘要翻译： LaMnO3的高表面积微粒分散或LaMnO3的促进衍生可以通过柠檬酸盐法制备。用于将组成金属阳离子络合成柠檬酸盐络合的混合金属化合物的柠檬酸的量可以在超过化学计量的范围内为约40mol％至约100mol％。

30. 发明申请

US20120134907A1 COATED PEROVSKITE-BASED CATALYSTS, CATALYST COMBINATIONS AND METHODS OF TREATING A GAS STREAM 有权
标题翻译：涂层的基于催化剂的催化剂，催化剂组合和处理气流的方法
公开(公告)号：US20120134907A1
公开(公告)日：2012-05-31
申请号：US12955317
申请日：2010-11-29
申请人： Gongshin Qi , Chang H. Kim , Wei Li
发明人： Gongshin Qi , Chang H. Kim , Wei Li
IPC分类号： B01D53/56 , B01D53/72 , B01J8/04
CPC分类号： B01D53/9468 , B01D53/9472 , B01D2251/2062 , B01D2251/2067 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/1028 , B01D2255/2022 , B01D2255/2025 , B01D2255/2027 , B01D2255/2042 , B01D2255/2045 , B01D2255/2063 , B01D2255/20761 , B01D2255/402 , B01D2255/407 , B01D2255/9022 , B01D2255/9032 , B01D2255/91 , B01D2258/012 , B01D2259/4533 , B01J23/002 , B01J23/10 , B01J23/34 , B01J23/83 , B01J23/8892 , B01J35/04 , B01J37/038
摘要： One embodiment of the invention includes a method of treating a gas stream comprising flowing the gas stream over a hydrocarbon reduction and NOx reduction catalyst first, and thereafter flowing the gas over a perovskite and NOx trap material for NOx oxidation and storage. In one embodiment, the hydrocarbon reduction and NOx reduction catalyst may include palladium. In one embodiment, the perovskite catalyst may have the general formula ABO3, AA′BO3, ABB′O3, or AA′BB′O3. The perovskite catalyst may be the only catalyst or a second non-perovskite catalyst may include at least one of palladium, platinum, rhodium, ruthenium or a catalyst system including one or more of the same or alloys thereof. In one embodiment, the NOx trap material may include at least one of alkali metals, alkaline earth metals such as barium, calcium, potassium, or sodium.
摘要翻译：本发明的一个实施方案包括处理气流的方法，其包括先将气流流过烃还原和NOx还原催化剂，然后使气体流过用于NOx氧化和储存的钙钛矿和NOx捕集材料。在一个实施方案中，烃还原和NOx还原催化剂可以包括钯。在一个实施方案中，钙钛矿催化剂可以具有通式ABO3，AA'BO3，ABB'O3或AA'BB'O3。钙钛矿催化剂可以是唯一的催化剂，或者第二非钙钛矿催化剂可以包括钯，铂，铑，钌中的至少一种或包含一种或多种相同的催化剂体系或其合金。在一个实施方案中，NOx捕获材料可以包括碱金属，碱土金属如钡，钙，钾或钠中的至少一种。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式