IMPROVED PROCESS AND CATALYST STRUCTURE EMPLOYING INTEGRAL HEAT EXCHANGE WITH OPTIONAL DOWNSTREAM FLAMEHOLDER
    2.
    发明申请
    IMPROVED PROCESS AND CATALYST STRUCTURE EMPLOYING INTEGRAL HEAT EXCHANGE WITH OPTIONAL DOWNSTREAM FLAMEHOLDER 审中-公开
    改进的工艺和催化剂结构采用整体热交换器与可选下游火焰探测器

    公开(公告)号:WO1995023915A1

    公开(公告)日:1995-09-08

    申请号:PCT/US1995001989

    申请日:1995-02-28

    Abstract: The invention is an improved catalyst structure and its use in highly exothermic processes like catalyst combustion. This improved catalyst structure employed integral heat exchange in an array of longitudinally disposed, adjacent reaction passage-ways or channels, which are either catalyst-coated (14) or catalyst-free (16), wherein the configuration of the catalyst-coated channels (14) differ from the non-catalyst channels (16) such that, when applied in exothermic reaction processes, such as catalyst combustion, the desired reaction is promoted in the catalytic channels (14) and substantially limited in the non-catalytic channels (16). The invention further comprises an improved reaction system and process for combustion of a fuel wherein catalytic combustion using a catalyst structure employing integral heat exchange, preferably the improved structures of the invention, affords a partially-combusted, gaseous product which is passed to a homogeneous combustion zone where complete combustion is promoted by means of a flameholder.

    Abstract translation: 本发明是改进的催化剂结构及其在高度放热过程如催化剂燃烧中的应用。 这种改进的催化剂结构在纵向设置的相邻反应通道或通道的阵列中采用整体热交换,其是催化剂涂覆的(14)或无催化剂(16),其中催化剂涂覆的通道( 14)与非催化剂通道(16)不同,使得当用于放热反应过程如催化剂燃烧时,在催化通道(14)中促进所需的反应,并且在非催化通道(16)中基本受限 )。 本发明还包括改进的燃料燃烧反应系统和方法,其中使用采用整体热交换的催化剂结构的催化燃烧,优选本发明的改进结构,提供部分燃烧的气态产物,其被传递到均匀燃烧 通过火焰稳定器促进完全燃烧的区域。

    SUPPORT STRUCTURE FOR A CATALYST
    3.
    发明申请
    SUPPORT STRUCTURE FOR A CATALYST 审中-公开
    催化剂支撑结构

    公开(公告)号:WO1997047926A1

    公开(公告)日:1997-12-18

    申请号:PCT/US1996009910

    申请日:1996-06-10

    CPC classification number: F23R3/40 F05B2230/60 F05B2230/606

    Abstract: A support structure (53) for securing a catalyst structure (52) comprising a multiplicity of longitudinally disposed channels for passage of a flowing gas mixture within a reactor, said support structure being comprised of a monolithic open celled or honeycomb-like structure formed by thin strips or ribs of high temperature resistant metal or ceramic which abuts against one end of the catalyst structure, and extends in a direction perpendicular to the longitudinal axis of the catalyst structure to essentially cover an end face (at either the inlet end or outlet end or both) of the catalyst structure with the support structure being secured (54) on its periphery to the reactor wall. The strips or ribs making up the support structure are bounded together to form a unitary structure having cellular openings at least as large as the catalyst structure channel openings. The cellular openings in the support structure are also positioned to be in fluid communication with the channels of the catalyst structure thus affording essentially unaltered gas flow (50) from the catalyst structure through the support structure.

    Abstract translation: 一种用于固定催化剂结构(52)的支撑结构(53),所述催化剂结构(52)包括多个纵向设置的通道,用于使反应器内的流动气体混合物通过,所述支撑结构包括由薄的薄片形成的单片开孔或蜂窝状结构 耐高温金属或陶瓷的条或肋邻接催化剂结构的一端,并且沿着垂直于催化剂结构的纵向轴线的方向延伸,以基本上覆盖端面(在入口端或出口端或 两个)催化剂结构,其中支撑结构在其周边上被固定(54)到反应器壁上。 构成支撑结构的条或肋条被结合在一起以形成具有至少与催化剂结构通道开口一样大的孔口的整体结构。 支撑结构中的细胞开口还被定位成与催化剂结构的通道流体连通,从而从催化剂结构通过支撑结构提供基本上未改变的气流(50)。

    COMBUSTION PROCESS AND CATALYST STRUCTURE
    4.
    发明申请
    COMBUSTION PROCESS AND CATALYST STRUCTURE 审中-公开
    燃烧过程和催化剂结构

    公开(公告)号:WO1997028357A1

    公开(公告)日:1997-08-07

    申请号:PCT/US1996001718

    申请日:1996-01-31

    Abstract: This invention is an improved catalyst structure and its use in highly exothermic processes like catalytic combustion. This improved catalyst structure employs integral heat exchange in an array of longitudinally disposed, adjacent reaction passageways or channels, which are either catalyst-coated or catalyst-free, wherein the configuration of the catalyst-coated channels differs from the non-catalyst channels such that, when applied in exothermic reaction processes, such as catalytic combustion, the desired reaction is promoted in the catalytic channels and substantially limited in the non-catalyst channels. The invention further comprises an improved reaction system and process for combustion of a fuel wherein catalytic combustion using a catalyst structure (112) employing integral heat exchange, preferably the improved structures of the invention, affords a partially-combusted, gaseous product which is passed to a homogeneous combustion zone (114) where complete combustion is promoted by a flameholder (118) including combustion processes where extremely lean fuel/air mixtures can be employed to afford complete combustion with little or no concomitant NOx production.

    Abstract translation: 本发明是改进的催化剂结构及其在高度放热过程如催化燃烧中的应用。 这种改进的催化剂结构在纵向设置的相邻的反应通道或通道的阵列中采用整体热交换,它们是催化剂涂覆的或不含催化剂的,其中催化剂涂覆的通道的构型不同于非催化剂通道,使得 当用于放热反应过程如催化燃烧时,在催化通道中促进所需的反应,并且在非催化剂通道中基本上受限制。 本发明还包括改进的燃料燃烧反应系统和方法,其中使用采用整体热交换的催化剂结构(112)的催化燃烧,优选本发明的改进结构,提供部分燃烧的气态产物,其被传递到 均质燃烧区(114),其中完全燃烧由包括燃烧过程的火焰稳定器(118)促进,其中可以使用非常贫的燃料/空气混合物来提供几乎或不伴随的NOx产生的完全燃烧。

    PALLADIUM PARTIAL COMBUSTION CATALYSTS AND A PROCESS FOR USING THEM
    5.
    发明申请
    PALLADIUM PARTIAL COMBUSTION CATALYSTS AND A PROCESS FOR USING THEM 审中-公开
    气体部分燃烧催化剂及其使用方法

    公开(公告)号:WO1992009848A1

    公开(公告)日:1992-06-11

    申请号:PCT/US1991008918

    申请日:1991-11-26

    Abstract: This invention is a catalyst comprising palladium on a support (102) and a partial combustion process in which the fuel is partially combusted using that catalyst. The palladium catalyst (106) may also comprise palladium mixed with metals selected from Group VIII or IB, may be graded (Fig. 1b) such as to have higher activity in the forward edge (112) of the catalyst, or may be placed on a support comprising zirconia. The choice of catalysts (106) and supports (102, 110) specified each solves a variety of problems dealing with the long term stability of the palladium as a partial combustion catalyst. The catalyst structure is stable in operation, has a comparatively low operating temperature, has a low temperature at which oxidation begins, and yet is not susceptible to temperature "runaway". The combustion gas produced by the catalytic process typically is at a temperature below the autocombustive temperature and may be used at that temperature or it may be fed to other combustion stages for further use in a gas turbine, furnace, boiler, or the like.

    Abstract translation: 本发明是一种催化剂,其包含在载体(102)上的钯和部分燃烧方法,其中燃料使用该催化剂部分燃烧。 钯催化剂(106)还可以包含与选自VIII或IB族的金属混合的钯,其可以分级(图1b),例如在催化剂的前沿(112)中具有较高的活性,或者可以放置在 包含氧化锆的载体。 催化剂(106)和载体(102,110)的选择各自解决了作为部分燃烧催化剂的钯的长期稳定性的各种问题。 催化剂结构在运行中稳定,工作温度较低,氧化开始时温度低,但不易受温度“溢流”影响。 通过催化过程产生的燃烧气体通常处于低于自燃温度的温度,并且可以在该温度下使用,或者可以将其供给到其他燃烧级,以进一步用于燃气轮机,炉,锅炉等。

    MULTISTAGE PROCESS FOR COMBUSTING FUEL MIXTURES
    9.
    发明申请
    MULTISTAGE PROCESS FOR COMBUSTING FUEL MIXTURES 审中-公开
    燃烧混合物的多种方法

    公开(公告)号:WO1992009849A1

    公开(公告)日:1992-06-11

    申请号:PCT/US1991008917

    申请日:1991-11-26

    CPC classification number: F23C13/00 F23C6/045 F23C2900/13002

    Abstract: This invention is a combustion process having a series of stages in which a fuel/oxygen-gas-containing mixture (16, 18) is combusted stepwise using a series of specific catalysts and catalytic structures (figure 2) and, optionally, a final homogeneous combustion zone to produce a combusted gas at a selected temperature preferably between 1050 DEG and 1700 DEG C. Depending upon the pressure of operation, there may be two or three discrete catalytic stages (stages 1, 2 and 3). The choice of catalysts and the use of specific structures, including those employing integral heat exchange (44) results in a catalyst and its support which are stable due to their comparatively low temperature, do not deteriorate, and yet the product combustion gas is at a temperature suitable for use in a gas turbine, furnace, boiler, or the like, but has low NOx content. Neither fuel nor air is added to the combustion process except in the initial stage.

    Abstract translation: 本发明是具有一系列阶段的燃烧方法,其中含燃料/含氧气体的混合物(16,18)使用一系列特定催化剂和催化结构(图2)和任选的最终均匀的 燃烧区以在选定温度下优选在1050℃和1700℃之间产生燃烧气体。根据操作压力,可以存在两个或三个离散的催化级(级1,2和3)。 催化剂的选择和特定结构的使用,包括采用整体热交换(44)的结构,导致催化剂及其载体由于其相对较低的温度而稳定,不劣化,而产物燃烧气体为 温度适用于燃气轮机,炉,锅炉等,但NOx含量低。 除了初始阶段以外,燃烧过程都不加燃料和空气。

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