Method of recovering carbon dioxide from a synthesis gas stream
    1.
    发明申请
    Method of recovering carbon dioxide from a synthesis gas stream 有权
    从合成气流中回收二氧化碳的方法

    公开(公告)号:US20070212286A1

    公开(公告)日:2007-09-13

    申请号:US11370984

    申请日:2006-03-09

    IPC分类号: B01D53/14

    CPC分类号: C01B32/50 Y02C10/06

    摘要: A method of recovering carbon dioxide from a synthesis gas stream generated within a facility having a synthesis gas reactor, a water-gas shift reactor and a steam generation system for generating steam for the synthesis gas reactor and for export. After the synthesis gas stream is passed through at least one process heat exchanger of the steam generation system located downstream of the water-gas shift reactor, the temperature of the synthesis gas stream is increased while simultaneously adding steam to the synthesis gas stream. Thereafter, the synthesis gas stream is added to an absorption system having an absorption zone utilizing a solvent to absorb the carbon dioxide and a regeneration zone to disengage the carbon dioxide from the solvent and thereby regenerate the solvent. Heat is transferred from the synthesis gas stream to the regeneration zone to promote disengagement of the carbon dioxide from the steam and such that between about 40 percent and about 90 percent of the carbon dioxide originally present in the synthesis gas stream is recovered. The temperature of the synthesis gas stream can be increased and steam can be added thereto by mixing superheated steam with the synthesis gas stream. Alternatively, a synthesis gas stream can be introduced into a saturator utilizing a water stream that undergoes indirect heat exchange with a low pressure steam stream.

    摘要翻译: 在具有合成气反应器,水煤气变换反应器和用于产生用于合成气反应器的蒸汽并用于出口的蒸汽发生系统的设备内产生的合成气流中回收二氧化碳的方法。 在合成气流通过位于水煤气变换反应器下游的蒸汽发生系统的至少一个工艺热交换器之后,合成气流的温度升高,同时向合成气流中加入蒸汽。 然后,将合成气流加入具有吸收区的吸收系统,利用溶剂吸收二氧化碳和再生区,使二氧化碳与溶剂脱离,从而再生溶剂。 热量从合成气流转移到再生区,以促进二氧化碳与蒸汽的分离,从而回收原始存在于合成气流中的约40%至约90%的二氧化碳。 可以增加合成气流的温度,并通过将过热蒸汽与合成气流混合来加入蒸汽。 或者,可以使用与低压蒸汽流进行间接热交换的水流将合成气流引入饱和器。

    Method of maintaining a fuel Wobbe index in an IGCC installation
    2.
    发明申请
    Method of maintaining a fuel Wobbe index in an IGCC installation 有权
    在IGCC安装中维持燃料Wobbe指数的方法

    公开(公告)号:US20070082306A1

    公开(公告)日:2007-04-12

    申请号:US11248387

    申请日:2005-10-12

    IPC分类号: F23N1/02

    摘要: A method of reducing a modified Wobbe index of a fuel stream fed to diffusion combustors of a gas turbine that is used in connection with an IGCC installation in which a nitrogen stream is fed into the head ends of the combustor of NOx control and the modified Wobbe index of the fuel stream has been increased in an amount that is greater than at least about 10 percent of a design Wobbe index for the fuel to be fed to the gas turbine. The reason for the increase is the conversion of the carbon monoxide within the fuel stream to hydrogen and carbon dioxide by a water gas shift reaction and subsequent removal of the carbon dioxide. The nitrogen stream is maintained at the same level both with and without conversion and subsequent removal of carbon atoms. The nitrogen stream is divided to subsidiary streams that are respectively fed into the head end of the combustors and that are mixed with a fuel to lower the modified Wobbe index to acceptable levels for the gas turbine.

    摘要翻译: 一种减少供给到燃气轮机的扩散燃烧器的燃料流的改进的沃伯指数的方法,该燃料流与IGCC装置结合使用,其中氮气流被供给到NOx控制的燃烧器的头端和修改的沃伯 燃料流的指数已经增加,其量大于要供给燃气轮机的燃料的设计沃泊指数的至少约10%。 增加的原因是通过水煤气变换反应并随后除去二氧化碳将燃料流中的一氧化碳转化为氢气和二氧化碳。 氮气流保持在相同的水平,具有和不具有转化和随后的碳原子的除去。 氮气流被分配到分别进入燃烧器的头端并与燃料混合以将修改的沃泊指数降低到燃气轮机的可接受水平的辅助气流。

    Synthesis gas and carbon dioxide generation method
    3.
    发明申请
    Synthesis gas and carbon dioxide generation method 有权
    合成气和二氧化碳的生成方法

    公开(公告)号:US20070041894A1

    公开(公告)日:2007-02-22

    申请号:US11204203

    申请日:2005-08-16

    申请人: Raymond Drnevich

    发明人: Raymond Drnevich

    IPC分类号: C01B3/24

    摘要: A method of generating a synthesis gas product stream and carbon dioxide in which a fuel is combusted in an oxygen transport membrane combustor to produce a flue gas stream containing the carbon dioxide and water. Reforming duty is divided between a combined reforming process and a gas heated reformer to produce the product stream. The flue gas stream is used to supply heat to a primary, steam methane reforming stage of the combined reforming process. Residual methane, produced in the primary stage, is reacted in a secondary stage having an oxygen transport membrane reactor. Heat produced in the secondary stage is supplied to the gas heated reactor to support its operation. The flue gas stream is cooled and water is separated therefrom to produce the carbon dioxide at a concentration of at least 85 mol percent.

    摘要翻译: 一种产生合成气产物流和二氧化碳的方法,其中在氧输送膜燃烧器中燃烧燃料以产生含有二氧化碳和水的烟道气。 重整功能在组合重整过程和气体加热重整器之间分配以产生产物流。 烟道气用于向组合重整过程的主要蒸汽甲烷重整阶段供应热量。 在初级阶段产生的残余甲烷在具有氧输送膜反应器的二级反应。 在次级产生的热量被供应到气体加热的反应器以支持其操作。 将烟道气流冷却,从其中分离出水,以产生浓度至少为85mol%的二氧化碳。

    Fluid heating and gas turbine integration method
    4.
    发明申请
    Fluid heating and gas turbine integration method 有权
    流体加热和燃气轮机整合方法

    公开(公告)号:US20050050894A1

    公开(公告)日:2005-03-10

    申请号:US10654933

    申请日:2003-09-05

    IPC分类号: F02C6/18 F02C1/00 F02G3/00

    摘要: A method of heating a fluid in a fluid heater integrated with a gas turbine. Fuel is burned in a radiant section of the fluid heater to heat the fluid and to produce combustion gases for the heating a downstream convective section. The combustion is supported by a combined oxidant stream. An oxygen containing stream or the combined stream, which is made up in part by the oxygen containing stream is preheated through indirect heat transfer with a first gas turbine exhaust stream produced by the gas turbine. A second gas turbine exhaust stream, also produced by the gas turbine is combined with the oxygen containing stream to form the combined oxidant stream. As such, the available heat energy supplied to the fluid heater is supplied not only by the combustion but also the gas turbine. This allows for the fuel to be conserved or for increased fluid throughput.

    摘要翻译: 一种加热与燃气轮机一体化的流体加热器中的流体的方法。 燃料在流体加热器的辐射部分燃烧,以加热流体并产生用于加热下游对流段的燃烧气体。 燃烧由组合的氧化剂流支撑。 由含氧气流组成的含氧气流或组合气流通过间接传热与燃气轮机产生的第一燃气轮机废气流预热。 也由燃气轮机产生的第二燃气轮机废气流与含氧流组合以形成组合的氧化剂流。 因此,供应到流体加热器的可用热能不仅由燃烧而且由燃气轮机提供。 这样可以保持燃料或增加流体通量。

    Electricity and synthesis gas generation method
    5.
    发明申请
    Electricity and synthesis gas generation method 有权
    电和合成气生成法

    公开(公告)号:US20070033949A1

    公开(公告)日:2007-02-15

    申请号:US11199256

    申请日:2005-08-09

    IPC分类号: F02C3/28

    摘要: A method of generating electricity in synthesis gas in which a fuel is combusted in a gas turbine to generate the electricity that at least about 60 percent by volume is derived from a source independent of the synthesis gas. The synthesis gas is produced by reacting a hydrocarbon stream, by for example, partial oxidation, autothermal reforming or steam methane reforming. After the synthesis gas stream is cooled, heat is transferred from the heated synthesis gas stream to the fuel prior to combustion in the gas turbine. All or at least a portion of the heat is transferred at a temperature no greater than about 500° F. and at a flow ratio of the fuel to the gas turbine to the synthesis gas stream from at least about 1.5. The heating of the fuel to the gas turbine lowers fuel consumption and thereby the total expenses involved in generating electricity and syngas.

    摘要翻译: 一种在合成气中发电的方法,其中燃料在燃气轮机中燃烧以产生至少约60体积%的电源,其独立于合成气源。 合成气通过例如部分氧化,自热重整或蒸汽甲烷重整的烃流反应来制备。 在合成气流被冷却之后,在燃气轮机中燃烧之前,将热量从加热的合成气流转移到燃料。 全部或至少一部分热量在不大于约500°F的温度下转化,并且燃料与燃气轮机的流量比至少约1.5转移至合成气流。 将燃料加热到燃气轮机降低了燃料消耗,从而降低了发电和合成气的总费用。

    FLUID HEATING AND GAS TURBINE INTEGRATION METHOD
    6.
    发明申请
    FLUID HEATING AND GAS TURBINE INTEGRATION METHOD 有权
    流体加热和气体涡轮机整合方法

    公开(公告)号:US20060185369A1

    公开(公告)日:2006-08-24

    申请号:US11376110

    申请日:2006-03-16

    IPC分类号: F02C6/10

    摘要: A method of heating a fluid in a fluid heater integrated with a gas turbine. Fuel is burned in a radiant section of the fluid heater to heat the fluid and to produce combustion gases for the heating a downstream convective section. The combustion is supported by a combined oxidant stream. An oxygen containing stream or the combined stream, which is made up in part by the oxygen containing stream is preheated through indirect heat transfer with a first gas turbine exhaust stream produced by the gas turbine. A second gas turbine exhaust stream, also produced by the gas turbine is combined with the oxygen containing stream to form the combined oxidant stream. As such, the available heat energy supplied to the fluid heater is supplied not only by the combustion but also the gas turbine. This allows for the fuel to be conserved or for increased fluid throughput.

    摘要翻译: 一种加热与燃气轮机一体化的流体加热器中的流体的方法。 燃料在流体加热器的辐射部分燃烧,以加热流体并产生用于加热下游对流段的燃烧气体。 燃烧由组合的氧化剂流支撑。 由含氧气流组成的含氧气流或组合气流通过间接传热与燃气轮机产生的第一燃气轮机废气流预热。 也由燃气轮机产生的第二燃气轮机废气流与含氧流组合以形成组合的氧化剂流。 因此,供应到流体加热器的可用热能不仅由燃烧而且由燃气轮机提供。 这样可以保持燃料或增加流体通量。

    STEAM METHANE REFORMING METHOD
    7.
    发明申请
    STEAM METHANE REFORMING METHOD 有权
    蒸汽甲烷改造方法

    公开(公告)号:US20060104896A1

    公开(公告)日:2006-05-18

    申请号:US11151223

    申请日:2005-06-14

    IPC分类号: C01B3/02

    摘要: A steam methane reforming method in which a feed stream is treated in a reactor containing a catalyst that is capable of promoting both hydrogenation and partial oxidation reactions. The reactor is either operated in a catalytic hydrogenation mode to convert olefins into saturated hydrocarbons and/or to chemically reduce sulfur species to hydrogen sulfide or a catalytic oxidative mode utilizing oxygen and steam to prereform the feed and thus, increase the hydrogen content of a synthesis gas produced by a steam methane reformer. The method is applicable to the treatment of feed streams containing at least 15% by volume of hydrocarbons with two or more carbon atoms and/or 3% by volume of olefins, such as a refinery off-gas. In such case, the catalytic oxidative mode is conducted with a steam to carbon ratio of less than 0.5, an oxygen to carbon ratio of less than 0.25 and a reaction temperature of between about 500° C. and about 860° C. to limit the feed to the steam methane reformer to volumetric dry concentrations of less than about 0.5% for the olefins and less than about 10% for alkanes with two or more carbon atoms.

    摘要翻译: 一种蒸汽甲烷重整方法,其中在含有能够促进氢化和部分氧化反应的催化剂的反应器中处理进料流。 反应器以催化氢化方式操作以将烯烃转化为饱和烃和/或化学还原硫物质至硫化氢或使用氧气和蒸汽来预反应原料的催化氧化方式,从而提高合成物的氢含量 由蒸汽甲烷重整器生产的气体。 该方法适用于处理含有至少15体积%的具有两个或多个碳原子的烃和/或3体积%的烯烃(例如炼油厂废气)的进料流。 在这种情况下,催化氧化模式以小于0.5的蒸汽/碳比,小于0.25的氧/碳比和约500℃至约860℃的反应温度进行,以限制 进料到蒸汽甲烷重整器中,对于烯烃的体积干燥浓度小于约0.5%,并且对于具有两个或更多个碳原子的烷烃小于约10%。

    FLUID HEATING AND GAS TURBINE INTEGRATION METHOD

    公开(公告)号:US20060080970A1

    公开(公告)日:2006-04-20

    申请号:US11290531

    申请日:2005-12-01

    IPC分类号: F02C6/00

    摘要: A method of heating a fluid in a fluid heater integrated with a gas turbine. Fuel is burned in a radiant section of the fluid heater to heat the fluid and to produce combustion gases for the heating a downstream convective section. The combustion is supported by a combined oxidant stream. An oxygen containing stream or the combined stream, which is made up in part by the oxygen containing stream is preheated through indirect heat transfer with a first gas turbine exhaust stream produced by the gas turbine. A second gas turbine exhaust stream, also produced by the gas turbine is combined with the oxygen containing stream to form the combined oxidant stream. As such, the available heat energy supplied to the fluid heater is supplied not only by the combustion but also the gas turbine. This allows for the fuel to be conserved or for increased fluid throughput.

    Gas turbine power augmentation method
    9.
    发明申请
    Gas turbine power augmentation method 有权
    燃气轮机功率增加方法

    公开(公告)号:US20060070383A1

    公开(公告)日:2006-04-06

    申请号:US10958270

    申请日:2004-10-06

    IPC分类号: F02C3/30

    摘要: A power augmentation method for a gas turbine in which water is injected into one or more stages of an auxiliary compressor to produce a vapor containing gas stream. The vapor containing gas stream is at least in part introduced into combustors of the gas turbine for power augmentation. Part of the vapor containing compressed gas stream can be introduced into a reactor to generate a hydrogen containing synthesis gas to support lower flame temperatures occurring within the combustors of the gas turbine due to the introduction of the vapor containing gas stream. In such manner, NOx emissions of the gas turbine can be reduced. Furthermore, the power augmentation method can be conducted in conjunction with an integrated gasification combined cycle.

    摘要翻译: 一种用于燃气轮机的功率增加方法,其中将水注入辅助压缩机的一个或多个阶段以产生含蒸汽的气流。 含蒸汽的气流至少部分地被引入燃气轮机的燃烧器中用于功率增加。 可以将包含压缩气体流的蒸汽的一部分引入反应器中以产生含氢合成气,以支持由于引入含蒸气的气流而在燃气轮机的燃烧器内发生较低的火焰温度。 以这种方式,可以减少燃气轮机的NOx排放。 此外,功率增加方法可以结合一体化气化联合循环进行。