Apparatus and Method for Multistage Hierachical Pyrolysis and Gasification of Solid Fuels
    1.
    发明申请
    Apparatus and Method for Multistage Hierachical Pyrolysis and Gasification of Solid Fuels 有权
    固体燃料多级热解和气化的装置与方法

    公开(公告)号:US20130239479A1

    公开(公告)日:2013-09-19

    申请号:US13881824

    申请日:2011-01-27

    IPC分类号: C10J3/56

    摘要: This invention relates to an apparatus and a method for multistage hierarchical pyrolysis and gasification of solid fuels. The apparatus comprises a feeding device 1, a multistage fluidized bed reactor 6, a residual discharging valve 9, a cyclone 10 and a condenser 11. A gas inlet is provided at the bottom of the multistage fluidized bed reactor 6 and a number of stages of fluidized beds 3 are provided within the multistage fluidized bed 6, wherein the fluidized beds 3 are separated by a number of perforated distributors 5. The top stage fluidized bed 3 is connected with the feeding device 1 and the coal fed thereto is heated by char obtained from pyrolysis in this stage and the mixture of high temperature ascending pyrolysis and gasification gas to undergo pyrolysis reactions at low temperature, thereby to obtain solid particles after preliminary pyrolytic process. The solid particles flow downwards through an overflow standpipe 4/the perforated distributor 5 to the next stage of the fluidized bed and then are pyrolyzed through being heated by char and the mixture of pyrolysis and gasification gas. The solid particles in turn pass into the next stage of the fluidized bed and finally enter into the bottom stage fluidized bed to undergo gasification reactions. More light fractions in tar can be produced using the present apparatus and method.

    摘要翻译: 本发明涉及固体燃料的多级分级热解和气化的装置和方法。 该设备包括进料装置1,多级流化床反应器6,剩余排放阀9,旋风分离器10和冷凝器11.在多级流化床反应器6的底部设有气体入口, 流化床3设置在多级流化床6内,其中流化床3由多个穿孔分配器5分离。顶级流化床3与进料装置1连接,并且通过获得的炭加热供给的煤 在此阶段的热解和高温上升热解气化气体的混合物在低温下进行热解反应,从而在初步热解过程后获得固体颗粒。 固体颗粒通过溢流立管4 /穿孔分布器5向下流动到流化床的下一阶段,然后通过被焦炭和热解气化气体的混合物加热而热解。 固体颗粒又进入流化床的下一阶段,最后进入底层流化床进行气化反应。 使用本发明的装置和方法可以生产焦油中的较轻馏分。

    Apparatus and method for multistage hierarchical pyrolysis and gasification of solid fuels
    2.
    发明授权
    Apparatus and method for multistage hierarchical pyrolysis and gasification of solid fuels 有权
    固体燃料的多级分级热解和气化的装置和方法

    公开(公告)号:US09464245B2

    公开(公告)日:2016-10-11

    申请号:US13881824

    申请日:2011-01-27

    摘要: This invention relates to an apparatus and a method for multistage hierarchical pyrolysis and gasification of solid fuels. The apparatus comprises a feeding device 1, a multistage fluidized bed reactor 6, a residual discharging valve 9, a cyclone 10 and a condenser 11. A gas inlet is provided at the bottom of the multistage fluidized bed reactor 6 and a number of stages of fluidized beds 3 are provided within the multistage fluidized bed 6, wherein the fluidized beds 3 are separated by a number of perforated distributors 5. The top stage fluidized bed 3 is connected with the feeding device 1 and the coal fed thereto is heated by char obtained from pyrolysis in this stage and the mixture of high temperature ascending pyrolysis and gasification gas to undergo pyrolysis reactions at low temperature, thereby to obtain solid particles after preliminary pyrolytic process. The solid particles flow downwards through an overflow standpipe 4/the perforated distributor 5 to the next stage of the fluidized bed and then are pyrolyzed through being heated by char and the mixture of pyrolysis and gasification gas. The solid particles in turn pass into the next stage of the fluidized bed and finally enter into the bottom stage fluidized bed to undergo gasification reactions. More light fractions in tar can be produced using the present apparatus and method.

    摘要翻译: 本发明涉及固体燃料的多级分级热解和气化的装置和方法。 该设备包括进料装置1,多级流化床反应器6,剩余排放阀9,旋风分离器10和冷凝器11.在多级流化床反应器6的底部设有气体入口, 流化床3设置在多级流化床6内,其中流化床3由多个穿孔分配器5分离。顶级流化床3与进料装置1连接,并且通过获得的炭加热供给的煤 在此阶段的热解和高温上升热解气化气体的混合物在低温下进行热解反应,从而在初步热解过程后获得固体颗粒。 固体颗粒通过溢流立管4 /穿孔分布器5向下流动到流化床的下一阶段,然后通过被焦炭和热解气化气体的混合物加热而热解。 固体颗粒又进入流化床的下一阶段,最后进入底层流化床进行气化反应。 使用本发明的装置和方法可以生产焦油中的较轻馏分。

    DECOUPLED FLUIDIZED BED GASIFYING METHOD AND GASIFYING APPARATUS OF SOLID FUEL
    3.
    发明申请
    DECOUPLED FLUIDIZED BED GASIFYING METHOD AND GASIFYING APPARATUS OF SOLID FUEL 有权
    固体燃料的脱水流化床加气方法及气化装置

    公开(公告)号:US20090265987A1

    公开(公告)日:2009-10-29

    申请号:US12440279

    申请日:2007-08-29

    IPC分类号: C10B1/00 C10J3/00

    摘要: The invention relates to a solid fuel decoupled fluidized bed gasifying method and a gasifying apparatus. By physically separately performing drying and pyrolyzing of fuel, gasification of char, and tar/hydrocarbon reforming, the interactions between the separated chemical reactions and physical processes during fluidized bed gasification can be utilized. Specifically, in a fluidized bed reactor having two reaction chambers, drying and pyrolyzing of fuel, gasification of char, and tar/hydrocarbon reforming are performed, respectively, the reforming of tar/hydrocarbon is promoted through the catalytic effect of the char, and the evaporated fuel moisture is provided to the char gasification and tar/hydrocarbon reforming as an effective reaction agent. Accordingly, the tar content in product gas can be reduced, the use amount of external steam can be reduced, the overall efficiency of gasification can be improved, and this technique can also be applied to the processing of high water-containing fuel. This gasifying method not only can be applied to individual fluidized bed gasification, but can contribute to the design of a combustor that combusts unreacted char, and to advanced decoupled fluidized bed gasification.

    摘要翻译: 本发明涉及固体燃料解耦流化床气化方法和气化装置。 通过物理分开进行燃料的干燥和热解,炭的气化和焦油/烃重整,可以利用分离的化学反应与流化床气化期间的物理过程之间的相互作用。 具体来说,在具有两个反应室的流化床反应器中,分别进行燃料的干燥和热解,炭的气化和焦油/烃重整,通过炭的催化作用促进焦油/烃的重整, 将蒸发的燃料水分提供给焦炭气化和焦油/烃重整作为有效的反应剂。 因此,可以降低产品气体中的焦油含量,可以降低外部蒸汽的使用量,提高整体气化效率,并且该技术也可以应用于高含水燃料的加工。 这种气化方法不仅可以应用于单独的流化床气化,而且可以有助于燃烧未反应焦炭的燃烧器的设计,以及先进的解耦流化床气化。

    Decoupled fluidized bed gasifying method and gasifying apparatus of solid fuel
    5.
    发明授权
    Decoupled fluidized bed gasifying method and gasifying apparatus of solid fuel 有权
    脱耦流化床气化方法和固体燃料气化装置

    公开(公告)号:US08764856B2

    公开(公告)日:2014-07-01

    申请号:US12440279

    申请日:2007-08-29

    IPC分类号: B01J7/00 C10J3/00

    摘要: The invention relates to a solid fuel decoupled fluidized bed gasifying method and a gasifying apparatus. By physically separately performing drying and pyrolyzing of fuel, gasification of char, and tar/hydrocarbon reforming, the interactions between the separated chemical reactions and physical processes during fluidized bed gasification can be utilized. Specifically, in a fluidized bed reactor having two reaction chambers, drying and pyrolyzing of fuel, gasification of char, and tar/hydrocarbon reforming are performed, respectively, the reforming of tar/hydrocarbon is promoted through the catalytic effect of the char, and the evaporated fuel moisture is provided to the char gasification and tar/hydrocarbon reforming as an effective reaction agent. Accordingly, the tar content in product gas can be reduced, the use amount of external steam can be reduced, the overall efficiency of gasification can be improved, and this technique can also be applied to the processing of high water-containing fuel. This gasifying method not only can be applied to individual fluidized bed gasification, but can contribute to the design of a combustor that combusts unreacted char, and to advanced decoupled fluidized bed gasification.

    摘要翻译: 本发明涉及固体燃料解耦流化床气化方法和气化装置。 通过物理分开进行燃料的干燥和热解,炭的气化和焦油/烃重整,可以利用分离的化学反应与流化床气化期间的物理过程之间的相互作用。 具体来说,在具有两个反应室的流化床反应器中,分别进行燃料的干燥和热解,炭的气化和焦油/烃重整,通过炭的催化作用促进焦油/碳氢化合物的重整, 将蒸发的燃料水分提供给焦炭气化和焦油/烃重整作为有效的反应剂。 因此,可以降低产品气体中的焦油含量,可以降低外部蒸汽的使用量,提高整体气化效率,并且该技术也可以应用于高含水燃料的加工。 这种气化方法不仅可以应用于单独的流化床气化,而且可以有助于燃烧未反应焦炭的燃烧器的设计,以及先进的解耦流化床气化。