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公开(公告)号：US5551239A
公开(公告)日：1996-09-03
申请号：US271244
申请日：1994-07-07
CPC分类号： F23C13/00 , F23R3/40 , F23C2900/13002
摘要： A combustor for supporting the catalytic combustion of gaseous carbonaceous fuel contains a catalyst zone in which is disposed a catalyst body comprising at least one catalyst member, a separator zone comprising a separator body and a downstream zone where homogeneous combustion occurs. The catalyst member contains a carrier and a catalyst material deposited thereon. The catalyst body may, optionally, contain additional catalyst members downstream of the at least one catalyst member. The separator body contains a carrier-type monolith containing ceramic fibers in a matrix. One of the optional additional catalyst members may also contain such a monolith on which the catalyst composition is disposed.
摘要翻译： 用于支撑气态含碳燃料的催化燃烧的燃烧器包含催化剂区域，其中设置有包括至少一个催化剂构件的催化剂体，包括分离器体的分离区和发生均匀燃烧的下游区。 催化剂构件包含沉积在其上的载体和催化剂材料。 催化剂体可以任选地在至少一个催化剂构件的下游含有另外的催化剂组分。 分离器主体包含载体型整料，其包含基体中的陶瓷纤维。 任选的另外的催化剂构件之一也可以含有这样的整料，其上设置催化剂组合物。
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公开(公告)号：US5474441A
公开(公告)日：1995-12-12
申请号：US22248
申请日：1993-02-25
摘要： A catalyst bed (30) for a combustor (18) for supporting the catalytic combustion of a gaseous air/fuel (e.g., methane or natural gas) combustion mixture contains an igniter catalyst member (1) upstream of a promoter catalyst member (2). The catalyst members each comprise carrier monoliths, the igniter catalyst member (1) having an igniter catalyst material deposited thereon and the promoter catalyst member (2) having a promoter catalyst material deposited thereon. The igniter catalyst material is distinguished from the promoter catalyst material in one or more of the following ways: the igniter catalyst material may have (a) a higher catalytic activity for combustion of the air/fuel mixture, (b) a lower catalyst deactivation temperature than the promoter catalyst material, and/or (c) the promoter catalyst regeneration temperature range brackets the upper limit of the regeneration temperature range of the igniter catalyst.
摘要翻译： 用于支撑气态空气/燃料（例如，甲烷或天然气）燃烧混合物的催化燃烧的燃烧器（18）的催化剂床（30）在促进剂催化剂构件（2）的上游含有点火器催化剂构件（1） 。 催化剂构件各自包括载体整料，其上沉积有点火器催化剂材料的点火器催化剂构件（1）和其上沉积有助催化剂材料的助催化剂构件（2）。 点火器催化剂材料以一种或多种以下方式与助催化剂材料不同：点火器催化剂材料可具有（a）对于空气/燃料混合物燃烧的较高催化活性，（b）较低的催化剂失活温度 和/或（c）助催化剂催化剂再生温度范围包括点火器催化剂的再生温度范围的上限。
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63.发明授权Catalytically-and aerodynamically-assisted liner for gas turbine combustors 失效用于燃气轮机燃烧器的催化和空气动力辅助衬管
公开(公告)号：US5460002A
公开(公告)日：1995-10-24
申请号：US250633
申请日：1994-05-27
申请人： Sanjay M. Correa
发明人： Sanjay M. Correa
摘要： Carbon monoxide and unburned hydrocarbon burnout in gas turbine combustors is promoted by a combustor liner having a plurality of vortex generating members or ridges formed therein. The liner includes a substrate having an inner surface and a thermal barrier coating disposed on the inner surface. The vortex generating ridges are formed in the thermal barrier coating and extend transverse to the mean direction of flow through the liner. The thermal barrier coating is capped with a catalytic material which enhances carbon monoxide and unburned hydrocarbon oxidation. The ridges are defined by raised portions of the catalytic material and are of sufficient height to cause mixing between the hot flame products and the cool incompletely-burned flow along the liner wall. Alternatively, the ridges can be defined by forming corrugations in the substrate and disposing a uniform catalytically-active thermal barrier coating over the corrugated substrate.
摘要翻译： 燃气轮机燃烧器中的一氧化碳和未燃碳氢化合物燃烧由具有形成在其中的多个涡流产生构件或脊的燃烧器衬套促进。 衬垫包括具有设置在内表面上的内表面和热障涂层的衬底。 涡流产生脊形成在热障涂层中并且横向于穿过衬套的平均流动方向延伸。 热障涂层用一种催化材料加盖，该催化材料增强一氧化碳和未燃烧的烃氧化。 脊由催化材料的凸起部分限定，并且具有足够的高度以引起热火焰产物与沿着衬壁的冷却不完全燃烧的流动之间的混合。 或者，可以通过在衬底中形成波纹并在波纹衬底上布置均匀的催化活性的热障涂层来限定脊。
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公开(公告)号：US5339634A
公开(公告)日：1994-08-23
申请号：US74711
申请日：1993-06-09
摘要： An engine is provided which, in at least one cylinder or combustion area, is provided with a hydrocarbon rich fuel which produces upon combustion an exhaust gas containing unburned hydrocarbons, water vapor and carbon monoxide. The exhaust gas is treated in a catalytic converter and the reaction process that occurs therein produces hydrogen and carbon dioxide which is mixed with air to form a hydrocarbon lean, hydrogen enriched mixture. The mixture is subsequently ignited in other cylinders or combustion areas of the engine to produce power.
摘要翻译： 提供了一种发动机，其在至少一个气缸或燃烧区域中设置有富含烃的燃料，其在燃烧时产生含有未燃烧的烃，水蒸气和一氧化碳的废气。 废气在催化转化器中处理，其中发生的反应过程产生与空气混合形成贫烃，富氢混合物的氢气和二氧化碳。 混合物随后在发动机的其它汽缸或燃烧区域中点燃以产生动力。
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65.发明授权Method and system for combusting hydrocarbon fuels with low pollutant emissions by controllably extracting heat from the catalytic oxidation stage 失效通过控制从催化氧化阶段提取热量来燃烧碳氢燃料与低污染物排放的方法和系统
公开(公告)号：US5235804A
公开(公告)日：1993-08-17
申请号：US701426
申请日：1991-05-15
申请人： Meredith B. Colket, III , Arthur S. Kesten , Joseph J. Sangiovanni , Martin F. Zabielski , Dennis R. Pandy , Daniel J. Seery
发明人： Meredith B. Colket, III , Arthur S. Kesten , Joseph J. Sangiovanni , Martin F. Zabielski , Dennis R. Pandy , Daniel J. Seery
IPC分类号： F01N5/02 , F02B51/02 , F02C3/20 , F02M27/02 , F23C6/04 , F23C13/00 , F23C99/00 , F23R3/30 , F23R3/40
摘要： A method of combusting a hydrocarbon fuel includes mixing the fuel with a first air stream to form a fuel/air mixture having an equivalence ratio of greater than 1 and partially oxidizing the fuel by contacting it with an oxidation catalyst to generate a heat of reaction and a partial oxidation product stream. The partial oxidation product stream is mixed with a second air stream and completely combusted in a main combustor at a condition at which appreciable quantities of thermal NO.sub.x are not formed to generate an effluent gas stream, thereby generating an effluent gas stream containing decreased amounts of thermal and prompt NO.sub.x. A system for combusting a hydrocarbon fuel includes, in combination, means for mixing the fuel with a first air stream, a catalytic oxidation stage containing an oxidation catalyst, means for mixing the partial oxidation product stream with a second air stream, and a main combustor capable of completely combusting the partial oxidation product stream.
摘要翻译： 燃烧烃燃料的方法包括将燃料与第一气流混合以形成当量比大于1的燃料/空气混合物，并通过使其与氧化催化剂接触而部分氧化燃料以产生反应热，并且 部分氧化产物流。 部分氧化产物流与第二空气流混合，并且在主燃烧器中完全燃烧，在这种条件下，不形成相当数量的热NOx以产生流出气流，从而产生含有较少热量的流出气流 并提示NOx。 用于燃烧烃燃料的系统包括组合燃料与第一气流混合的装置，含有氧化催化剂的催化氧化阶段，用于将部分氧化产物流与第二气流混合的装置和主燃烧器 能够完全燃烧部分氧化产物流。
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公开(公告)号：US5228847A
公开(公告)日：1993-07-20
申请号：US808803
申请日：1991-12-18
摘要： A combustion process, e.g. for a gas turbine, comprises catalytically combusting part of a fuel/air feed in a preliminary catalyst body which has through passages and supports, or is composed of, a catalyst active for the combustion of the fuel. The resultant heated gas stream is then mixed with the remainder of the feed, and that mixture is combusted, e.g. catalytically in a main catalyst body. The amount of combustion occurring in the preliminary catalyst body is sufficient that combustion of the mixture of the heated gas stream and the remainder of the feed can be sustained at the desired operating conditions. Under those desired operating conditions combustion of the feed could not be sustained in the absence of the heating given by the combustion in the preliminary catalyst body. There may be more than one preliminary catalyst body. The preliminary catalyst body or bodies may also be provided with passages wherein combustion does not take place under the desired operating conditions so that those passages act as a bypass. Preferably the combustion passages of at least the first preliminary catalyst body are of such size, that at the normal operating conditions, the flow therethrough is laminar, whereas the flow through the passages of the main catalyst body, where employed, is turbulent.
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67.发明授权
公开(公告)号：US5216875A
公开(公告)日：1993-06-08
申请号：US852371
申请日：1992-03-13
摘要： A process for operating a palladium oxide-containing catalytic combustor is useful, e.g., for powering a gas turbine. The palladium oxide is supported on a metal oxide such as alumina, lanthanide metal oxide-modified 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 the decomposition onset temperature of palladium oxide (which is catalytically active for catalytic combustion) into metallic palladium (which is catalytically inactive) deactivation of the catalyst 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 regeneration temperature range which varies depending on the particular metal oxide used to support the palladium oxide.
摘要翻译： 用于操作含氧化钯的催化燃烧器的方法是有用的，例如用于为燃气轮机供电。 氧化钯负载在氧化铝，镧系金属氧化物改性氧化铝，二氧化铈，二氧化钛或氧化钽等金属氧化物上。 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。 通过将低于催化燃烧的氧化钯（其对于催化燃烧具有催化活性）的分解开始温度维持在金属钯（其是催化无活性的）中，避免了催化剂的失活，并且保持了高催化活性。 通过使用根据用于支撑氧化钯的特定金属氧化物而变化的再生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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68.发明授权Gas turbine catalytic combustor with preburner and low NO.sub.x emissions 失效具有预燃机和低NOx排放的气体涡轮机催化燃烧器
公开(公告)号：US5161366A
公开(公告)日：1992-11-10
申请号：US509401
申请日：1990-04-16
申请人： Kenneth W. Beebe
发明人： Kenneth W. Beebe
摘要： During low-load operating conditions, preburner combustion products are supplied with a chemical reactant to reduce NO.sub.x. The preburner products of combustion are mixed with a hydrocarbon fuel in the presence of a combustion catalyst to ignite and initiate a catalytic combustion reaction. The preburner is then shut down. The fuel/air mixture supplied the catalytic reactor bed during the mid-load operating range of the turbine is sufficiently lean to produce a combustion reaction temperature too low to produce thermal NO.sub.x. Thus, at low-load conditions, preburner combustion occurs with NO.sub.x reduction by chemical reactant, while the catalytic combustion occurs at mid-range operating conditions at temperatures too low to produce NO.sub.x. For high-load operating conditions, the catalytic combustion occurs as previously described and additional lean fuel/air mixture is supplied the reaction zone whereby thermal NO.sub.x is likewise avoided.
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公开(公告)号：US5003768A
公开(公告)日：1991-04-02
申请号：US480377
申请日：1990-02-14
申请人： Guenter Kappler , Dieter Rist
发明人： Guenter Kappler , Dieter Rist
摘要： In order to achieve in connection with gas turbine installations which are to be used preferably as motor vehicle drive, a combustion low in harmful components, a two-stage combustion chamber with catalytic combustion in the first stage is proposed. The second stage has the task to ready the necessary additional energy during acceleration- and full-load operation.
摘要翻译： 为了实现与优选用作机动车辆驱动的燃气轮机装置相结合，提出了一种低有害成分燃烧，在第一阶段中具有催化燃烧的二级燃烧室。 第二阶段的任务是在加速和全负载运行期间准备必要的附加能量。
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公开(公告)号：US4966001A
公开(公告)日：1990-10-30
申请号：US283103
申请日：1988-12-12
申请人： Kenneth W. Beebe
发明人： Kenneth W. Beebe
摘要： A fuel gas injector for a gas turbine engine employs a plurality of closely spaced parallel venturi tubes disposed in a pair of spaced-apart header plates. The venturi tubes are brazed to the header plates and the perimeters of the header plates are sealed to form a plenum into which pressurized gaseous fuel is supplied. Orifices lead from the plenum to throats of the venturi tubes thereby injecting the gaseous fuel at right angles into the high-velocity air stream existing at the the throats of the venturi tubes. High shear is imposed on the injected fuel for providing complete mixing with the air. The high air velocity in the throats of the venturi tubes avoids flashback and flameholding. The combined flow from the plurality of venturi tubes mixes downstream thereof to provide a uniform velocity and fuel-air mixture across the flow field. This flow field is suitable for use in a catalyst bed which may be disposed downstream of the venturi tubes.
摘要翻译： 用于燃气涡轮发动机的燃料气体喷射器采用设置在一对间隔开的集管板中的多个紧密间隔的平行文丘里管。 文丘里管钎焊到集管板，并且集管板的周边被密封以形成供应加压气体燃料的集气室。 孔从气室引导到文丘里管的喉部，从而将气体燃料以直角注入到存在于文丘里管喉部的高速空气流中。 对喷射的燃料施加高剪切以提供与空气的完全混合。 文丘里管喉管中的高空气速度避免了回火和阻燃。 来自多个文丘里管的组合流在其下游混合以在整个流场上提供均匀的速度和燃料 - 空气混合物。 该流场适用于可设置在文丘里管下游的催化剂床。
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