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公开(公告)号：US5462907A
公开(公告)日：1995-10-31
申请号：US247625
申请日：1994-05-23
IPC分类号： B01D53/86 , B01D53/94 , B01J23/10 , B01J23/40 , B01J23/63 , B01J29/72 , B01J35/10 , B01J37/02 , F02B3/06 , F24C15/20 , B01J21/04 , B01J23/42
CPC分类号： B01D53/9481 , B01D53/864 , B01D53/8668 , B01D53/944 , B01J23/10 , B01J23/63 , B01J35/10 , B01J37/0215 , B01J37/0244 , B01J29/7215 , B01J35/1014 , B01J35/1019 , B01J35/1047 , B01J35/1061 , F02B3/06
摘要： Oxidation catalyst compositions include a catalytic material containing ceria and alumina each having a surface area of at least about 10 m.sup.2 /g, for example, ceria and activated alumina in a weight ratio of from about 1.5:1 to 1:1.5. Optionally, platinum may be included in the catalytic material in amounts which are sufficient to promote gas phase oxidation of CO and HC but which are limited to preclude excessive oxidation of SO.sub.2 to SO.sub.3. Alternatively, palladium in any desired amount may be included in the catalytic material. The catalyst compositions have utility as oxidation catalysts for pollution abatement of exhausts contianing unburned fuel or oil. For example, the catalyst compositions may be used in a method to treat diesel engine exhaust by contacting the hot exhaust with the catalyst composition to promote the oxidation of the volatile organic fraction component of particulates in the exhaust.
摘要翻译： 氧化催化剂组合物包括含有表面积至少约10m 2 / g的二氧化铈和氧化铝的催化材料，例如二氧化铈和活性氧化铝，重量比为约1.5:1至1:1.5。 任选地，铂可以以足以促进CO和HC的气相氧化的量包含在催化材料中，但限制为排除SO2过度氧化成SO 3。 或者，任何所需量的钯可以包括在催化材料中。 催化剂组合物可用作氧化催化剂，用于污染消除未燃燃料或油的废气。 例如，催化剂组合物可用于通过使热排气与催化剂组合物接触来促进废气中的微粒的挥发性有机部分组分的氧化来处理柴油发动机排气的方法。
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12.发明授权Process conditions for operation of ignition catalyst for natural gas combustion 失效用于天然气燃烧的点火催化剂的操作条件
公开(公告)号：US5214912A
公开(公告)日：1993-06-01
申请号：US776907
申请日：1991-10-16
摘要： A method for operating a palladium oxide containing catalytic combustor useful, e.g., for powering a gas turbine, wherein the palladium oxide is supported on a metal oxide such as alumina, ceria, titania or tantalum oxide. The method involves maintaining control of the temperature within the combustor in such a manner as to insure the presence of palladium oxide. By maintaining the temperature below about 800.degree. C. decomposition of palladium oxide into metallic palladium is avoided and high catalytic activity is retained. Regeneration of catalyst following inactivation resulting from an over-temperature is accomplished by using a heat soak in a temperature range which varies depending on the metal oxide used to support the palladium oxide.
摘要翻译： 一种用于操作含氧化钯的催化燃烧器的方法，其可用于例如为燃气轮机供电，其中氧化钯负载在诸如氧化铝，二氧化铈，二氧化钛或氧化钽的金属氧化物上。 该方法包括以确保氧化钯存在的方式维持燃烧室内温度的控制。 通过保持温度低于约800℃，避免氧化钯分解成金属钯，并保持高催化活性。 通过在根据用于负载氧化钯的金属氧化物而变化的温度范围内的热浸泡来实现由过温引起的失活后催化剂的再生。
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公开(公告)号：US4863893A
公开(公告)日：1989-09-05
申请号：US888179
申请日：1986-08-06
CPC分类号： C01B21/265 , B01J23/464 , B01J35/06 , C01B21/267
摘要： Platinum-rhodium and platinum-palladium-rhodium gauzes bearing a high surface area coating (in excess of 50 cm.sup.2 /g) of platinum ease initiation of ammonia oxidation.
摘要翻译： 具有高表面积涂层（超过50cm2 / g）铂的铂 - 铑和铂 - 铑 - 铑纱布容易引发氨氧化。
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公开(公告)号：US06977067B2
公开(公告)日：2005-12-20
申请号：US10365165
申请日：2003-02-12
申请人： Shinn H. Hwang , Robert J. Farrauto
发明人： Shinn H. Hwang , Robert J. Farrauto
CPC分类号： C01B3/382 , C01B2203/0233 , C01B2203/0244 , C01B2203/0261 , C01B2203/0844 , C01B2203/1247 , C01B2203/1264 , C01B2203/142 , C01B2203/143 , C01B2203/82
摘要： Provided is a method of generating a hydrogen-rich reformate from a hydrocarbon feed stream comprising olefins and alkanes (e.g., LPG). An inlet gas stream containing the hydrocarbon feed stream and an oxygen containing gas stream, is preheated to a temperature of from 180 to 300° C. The preheated inlet gas stream is then contacted with a sulfur tolerant partial oxidation catalyst to form a pre-reformed gas stream, which is preferably maintained below about 400° C. The pre-reformed gas stream is then subjected to a reforming process to form the hydrogen-rich reformate.
摘要翻译： 提供了从包含烯烃和烷烃（例如LPG）的烃进料流产生富氢重整产物的方法。 将含有烃进料流和含氧气流的入口气流预热至180℃至300℃的温度。然后将预热的入口气流与耐硫部分氧化催化剂接触以形成预转化 气流优选保持在约400℃以下。然后将预重整气流进行重整过程以形成富氢重整产物。
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15.发明授权Method for preparation of catalytic material for selective oxidation and catalyst members thereof 有权制备选择性氧化催化剂材料的方法及其催化剂成分公开(公告)号：US06559094B1
公开(公告)日：2003-05-06
申请号：US09392813
申请日：1999-09-09
IPC分类号： B01J2389
CPC分类号： B01J37/34 , B01D53/864 , B01J23/8906 , B01J37/0225 , B01J37/0244 , C01B3/583 , C01B2203/044 , C01B2203/047
摘要： The invention pertains to the preparation and use of catalytic materials and catalyst members for the selective oxidation of carbon monoxide in a gas stream that contains hydrogen. One such catalyst member may be produced by depositing by electric arc spraying a metal feedstock onto a metal substrate to provide a metal anchor layer on the substrate, and depositing a catalytic material comprising platinum and iron dispersed on a refractory inorganic oxide support material onto the metal substrate. The catalytic material may optionally be produced by wetting the support material, especially a particulate support material, with a platinum group metal solution and iron solution and drying and calcining the wetted support material in air at a temperature in the range of from 200° C. to 300° C., preferably using a solution containing bivalent platinum ion species. The catalyst member may be used by flowing the gas stream therethrough at a temperature at about 90° C. with a O2:CO ratio of about 1:1 and a space velocity of about 20,000/hr or, alternatively, at a temperature of about 150° C. with a O2:CO ratio of about 1.5:1 and a space velocity of about 80,000/hr.
摘要翻译： 本发明涉及用于在含有氢气的气流中选择性氧化一氧化碳的催化材料和催化剂构件的制备和使用。 一种这样的催化剂构件可以通过电弧喷涂金属原料沉积到金属基底上以在基底上提供金属锚定层并且将分散在耐火无机氧化物载体材料上的铂和铁的催化材料沉积到金属上 基质。 催化材料可以任选地通过用铂族金属溶液和铁溶液润湿载体材料，特别是颗粒状载体材料，并在200℃的温度下干燥和煅烧润湿的载体材料在空气中来制备。 至300℃，优选使用含有二价铂离子种类的溶液。 催化剂构件可以通过在大约90℃的温度下流过气体流而使用，其中O 2 :CO比约为1:1，空速约为20,000 /小时，或者在大约温度下 150℃，O 2 :CO比约1.5:1，空速约80,000 /小时。
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公开(公告)号：US06248684B1
公开(公告)日：2001-06-19
申请号：US08255289
申请日：1994-06-07
IPC分类号： B01J2906
CPC分类号： B01D53/9481 , B01D53/864 , B01D53/944 , B01D2255/102 , B01D2255/206 , B01D2255/20723 , B01D2255/20738 , B01D2255/20753 , B01D2255/20761 , B01D2255/50 , B01D2255/912 , B01D2255/9207 , B01J23/10 , B01J23/63 , B01J29/7215 , B01J29/7615 , B01J35/0006 , B01J35/023 , B01J35/1014 , B01J35/1019 , B01J37/0215 , B01J37/0244 , B01J37/0246 , B01J37/0248 , F01N2510/06 , F01N2510/063 , F01N2510/0682 , F01N2510/0684 , F02B3/06 , Y02A50/2341
摘要： Oxidation catalyst compositions for treating diesel exhaust include ceria and, optionally, alumina, each having a surface area of at least about 10 m2/g, and a zeolite, e.g., Beta zeolite. Optionally, platinum may be included in the catalytic material, preferably in amounts which are sufficient to promote some gas-phase oxidation of carbon monoxide (“CO”) and hydrocarbons (“HC”) but which are limited to preclude excessive oxidation of SO2 to SO3. Alternatively, palladium in any desired amount may be included in the catalytic material. The zeolite is optionally doped, e.g., ion-exchanged, with one or more of hydrogen, a platinum group metal or other catalytic metals. The catalyst compositions may be used in a method to treat diesel engine exhaust by contacting the hot exhaust with the catalyst composition to promote the oxidation of gas-phase CO and HC and of the volatile organic fraction component of particulates in the exhaust.
摘要翻译： 用于处理柴油机废气的氧化催化剂组合物包括二氧化铈和任选的具有至少约10m 2 / g的表面积的氧化铝和沸石，例如β沸石。 任选地，铂可以包括在催化材料中，优选以足以促进一氧化碳（“CO”）和烃（“HC”）的一些气相氧化的量，但是限于排除SO2的过度氧化到 SO3。 或者，任何所需量的钯可以包括在催化材料中。 沸石任选地与氢，铂族金属或其它催化金属中的一种或多种进行掺杂，例如离子交换。 催化剂组合物可用于通过使热排气与催化剂组合物接触来促进气相CO和HC以及排气中的微粒的挥发性有机部分组分的氧化来处理柴油发动机排气的方法。
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17.发明授权
公开(公告)号：US06150291A
公开(公告)日：2000-11-21
申请号：US250652
申请日：1999-02-16
CPC分类号： B01J29/44 , B01D53/9418 , B01D2251/208 , B01D2255/1021 , B01D2255/1026 , B01D2255/502 , B01D2255/504 , B01D2255/912 , Y02C20/10
摘要： A method for reducing gaseous nitrogen oxides present in a gas stream by reaction with a reductant species is practiced by flowing the gas stream under lean NO.sub.X -reducing conditions in contact with a catalytic material containing a catalytically effective amount of a catalytic species, e.g., a platinum group metal, and a reductant storage material, e.g., a zeolite, effective for storing reductant species for reaction with NO.sub.X, and providing an intermittent supply of the reductant to the gas stream. The catalytic material may be prepared in any manner, but one method is to incorporate a catalytically effective amount of the platinum into a template-bearing molecular sieve material, preferably ZSM-5, to hinder the platinum from being incorporated into the pores of the molecular sieve material, and then calcining the molecular sieve material, whereby the template is removed from the molecular sieve material after the platinum is incorporated therein. Another method is to add a blocking agent to the molecular sieve material, then incorporate the platinum therein, and then calcine the material to remove the blocking agent. The catalytic material may contain less than about two percent by weight of zeolite plus platinum, e.g., less than about 0.5%, or from about 0.025% to 0.1% or 0.2% platinum.
摘要翻译： 通过与还原剂物质反应来还原存在于气流中的气态氮氧化物的方法是通过在贫NOX还原条件下与含有催化有效量的催化物质（例如， 铂族金属和还原剂储存材料，例如有效地存储用于与NOX反应的还原剂物质的沸石，以及向气流中间歇地供应还原剂。 催化材料可以以任何方式制备，但是一种方法是将催化有效量的铂掺入含模板的分子筛材料，优选ZSM-5中，以阻止铂结合到分子的孔中 筛分材料，然后煅烧分子筛材料，由此在引入铂后，从分子筛材料中除去模板。 另一种方法是向分子筛材料中加入封闭剂，然后在其中加入铂，然后煅烧该材料以除去封闭剂。 催化材料可以含有小于约2重量％的沸石加铂，例如小于约0.5％，或约0.025％至0.1％或0.2％的铂。
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公开(公告)号：US5792436A
公开(公告)日：1998-08-11
申请号：US645301
申请日：1996-05-13
IPC分类号： B01D53/86 , B01D53/94 , B01J23/42 , B01J23/63 , B01J23/656 , F01N3/08 , F01N3/10 , F01N3/20 , B01D53/56 , B01D53/75
CPC分类号： F01N3/085 , B01D53/8609 , B01D53/8671 , B01D53/9431 , F01N3/0814 , F01N3/0871 , B01D2257/00 , B01D2257/302 , F01N2250/12 , F01N2330/06 , F01N2570/14 , F01N2610/03
摘要： A method of at least periodically removing from a lean gaseous stream a sorbable component such as SO.sub.x includes passing the gaseous stream through a trap member having an oxidation catalyst combined with a sorbent material at a temperature within the sorbing temperature range of the sorbent material. The sorbed component is periodically removed by introducing a combustible component into the gaseous stream and oxidizing it on the trap member to thermally desorb the sorbed component. The amount of combustible component introduced is limited to maintain the gaseous stream composition lean, but is sufficient to increase the surface temperature of at least part of the trap member to above the bulk temperature of the gaseous stream. Sorbing and desorbing periods are alternated and a composition and an apparatus to carry out the process is provided.
摘要翻译： 至少周期性地从贫气流中除去可吸收组分如SOx的方法包括使气流通过具有与吸附剂材料组合的氧化催化剂的捕集构件，所述氧化催化剂在吸附剂材料的吸附温度范围内。 通过将可燃组分引入气流中并在捕集构件上氧化吸附组分以热解吸附吸附的组分来定期除去吸附的组分。 引入的可燃组分的量被限制以保持气流组合物变稀，但足以使至少部分捕集构件的表面温度升至高于气流体积的温度。 曳引和解吸时间是交替的，并且提供了一个组合物和一个执行该过程的装置。
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公开(公告)号：US5627124A
公开(公告)日：1997-05-06
申请号：US492178
申请日：1995-06-19
IPC分类号： B01D53/86 , B01D53/94 , B01J23/10 , B01J23/40 , B01J23/63 , B01J29/72 , B01J35/10 , B01J37/02 , F02B3/06 , F24C15/20 , B01J21/04
CPC分类号： B01D53/9481 , B01D53/864 , B01D53/8668 , B01D53/944 , B01J23/10 , B01J23/63 , B01J35/10 , B01J37/0215 , B01J37/0244 , B01J29/7215 , B01J35/1014 , B01J35/1019 , B01J35/1047 , B01J35/1061 , F02B3/06
摘要： Oxidation catalyst compositions-include a catalytic material containing ceria-and alumina each having a surface area of at least about 10 m.sup.2 /g, for example, ceria and activated alumina in a weight ratio of from about 1.5:1 to 1:1.5. Optionally, platinum may be included in the catalytic material in amounts which are sufficient to promote gas phase oxidation of CO and HC but which are limited to preclude excessive oxidation of SO.sub.2 to SO.sub.3. Alternatively, palladium in any desired amount may be included in the catalytic material. The catalyst compositions have utility as oxidation catalysts for pollution abatement of exhausts contianing unburned fuel or oil. For example, the catalyst compositions may be used in a method to treat diesel engine exhaust by contacting the hot exhaust with the catalyst composition to promote the oxidation of the volatile organic fraction component of particulates in the exhaust.
摘要翻译： 氧化催化剂组合物包括含有表面积至少约10m 2 / g的二氧化铈和氧化铝的催化材料，例如二氧化铈和活性氧化铝，重量比为约1.5:1至1:1.5。 任选地，铂可以以足以促进CO和HC的气相氧化的量包含在催化材料中，但限制为排除SO2过度氧化成SO 3。 或者，任何所需量的钯可以包括在催化材料中。 催化剂组合物可用作氧化催化剂，用于污染消除未燃燃料或油的废气。 例如，催化剂组合物可用于通过使热排气与催化剂组合物接触来促进废气中的微粒的挥发性有机部分组分的氧化来处理柴油发动机排气的方法。
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公开(公告)号：US5552360A
公开(公告)日：1996-09-03
申请号：US222353
申请日：1994-04-04
IPC分类号： F23R3/40 , B01J23/44 , B01J23/63 , B01J35/00 , F23C13/00 , B01J21/04 , B01J21/08 , B01J21/10 , B01J27/224
CPC分类号： B01J35/0006 , F23C13/00
摘要： A combustor for supporting the catalytic combustion of a gaseous carbonaceous fuel/air combustion mixture contains a catalyst zone in which is disposed a catalyst body comprising at least a first and a second catalyst member and further contains a downstream zone where homogeneous combustion occurs. Each catalyst member is comprised of a carrier body having a catalyst material deposited thereon. The first carrier is made of a silica-magnesia-alumina material comprised primarily of cordierite, mullite and corundum and the second carrier is made of a ceramic fiber matrix material comprising ceramic (alumina-boron oxide-silica) fibers in a silicon carbide matrix.
摘要翻译： 用于支撑气态碳质燃料/空气燃烧混合物的催化燃烧的燃烧器包含催化剂区，其中设置有至少包括第一和第二催化剂构件的催化剂体，并且还包含发生均匀燃烧的下游区。 每个催化剂构件由其上沉积有催化剂材料的载体构成。 第一载体由主要由堇青石，莫来石和刚玉构成的二氧化硅 - 氧化镁 - 氧化铝材料制成，第二载体由在碳化硅基体中包含陶瓷（氧化铝 - 氧化硼 - 二氧化硅）纤维的陶瓷纤维基质材料制成。
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