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    Recycle of hydrocarbon gases from the product tanks to a reactor through the use of ejectors
    1.
    发明授权
    Recycle of hydrocarbon gases from the product tanks to a reactor through the use of ejectors 失效
    通过使用喷射器将烃类气体从产品罐回收到反应堆

    公开(公告)号：US07714083B2

    公开(公告)日：2010-05-11

    申请号：US11370949

    申请日：2006-03-08

    申请人： Diwaker Singh

    发明人： Diwaker Singh

    IPC分类号： B01J8/18 ,  C08F2/00 ,  C08F210/00

    CPC分类号： C07C7/00 ,  B01J8/003 ,  B01J8/1827 ,  B01J2208/00274 ,  B01J2208/00761 ,  C10G50/00

    摘要： The present invention provides a method and apparatus for separating unreacted monomer from a polymerization process effluent stream, wherein the effluent stream comprises unreacted monomer and polymer particles. The method comprises passing the effluent stream of a fluidized-bed reactor into at least one container, feeding a high-pressure olefin through an ejector, and vacuuming at least a portion of the effluent stream from the at least one container through the ejector. The apparatus comprises a fluidized-bed reactor having a first conduit connected to a first tank, an ejector having a second conduit connected to the first tank, and a third conduit connected to the fluidized-bed reactor.

    摘要翻译： 本发明提供了用于从聚合工艺流出物流中分离未反应单体的方法和装置，其中流出物流包含未反应的单体和聚合物颗粒。 该方法包括将流化床反应器的流出物流送入至少一个容器中，通过喷射器供给高压烯烃，并将至少一部分来自至少一个容器的流出物料流抽吸通过喷射器。 该装置包括流化床反应器，其具有连接到第一罐的第一导管，具有连接到第一罐的第二导管的喷射器和连接到流化床反应器的第三导管。

    Recycle of hydrocarbon gases from the product tanks to a reactor through the use of ejectors
    3.
    发明申请
    Recycle of hydrocarbon gases from the product tanks to a reactor through the use of ejectors 失效
    通过使用喷射器将烃类气体从产品罐回收到反应堆

    公开(公告)号：US20070213478A1

    公开(公告)日：2007-09-13

    申请号：US11370949

    申请日：2006-03-08

    申请人： Diwaker Singh

    发明人： Diwaker Singh

    IPC分类号： C08F2/00 ,  B01J8/24

    CPC分类号： C07C7/00 ,  B01J8/003 ,  B01J8/1827 ,  B01J2208/00274 ,  B01J2208/00761 ,  C10G50/00

    摘要： The present invention provides a method and apparatus for separating unreacted monomer from a polymerization process effluent stream, wherein the effluent stream comprises unreacted monomer and polymer particles. The method comprises passing the effluent stream of a fluidized-bed reactor into at least one container, feeding a high-pressure olefin through an ejector, and vacuuming at least a portion of the effluent stream from the at least one container through the ejector. The apparatus comprises a fluidized-bed reactor having a first conduit connected to a first tank, an ejector having a second conduit connected to the first tank, and a third conduit connected to the fluidized-bed reactor.

    摘要翻译： 本发明提供了用于从聚合工艺流出物流中分离未反应单体的方法和装置，其中流出物流包含未反应的单体和聚合物颗粒。 该方法包括将流化床反应器的流出物流送入至少一个容器中，通过喷射器供给高压烯烃，并将至少一部分来自至少一个容器的流出物料流抽吸通过喷射器。 该装置包括流化床反应器，其具有连接到第一罐的第一导管，具有连接到第一罐的第二导管的喷射器和连接到流化床反应器的第三导管。

    Gas-phase process
    4.
    发明申请
    Gas-phase process 审中-公开
    气相工艺

    公开(公告)号：US20050182207A1

    公开(公告)日：2005-08-18

    申请号：US11021918

    申请日：2004-12-22

    申请人： Diwaker Singh ,  Sandy Hinds ,  Brett Fischbuch ,  Ng Ai Vey

    发明人： Diwaker Singh ,  Sandy Hinds ,  Brett Fischbuch ,  Ng Ai Vey

    IPC分类号： C08F2/00 ,  C08F10/02 ,  C08F210/16

    CPC分类号： C08F10/02 ,  C08F210/16 ,  C08F2/34 ,  C08F210/14 ,  C08F2500/12

    摘要： A continuous gas fluidized bed polymerization process for the production of a polymer from a monomer including continuously passing a gaseous stream comprising the monomer through a fluidized bed reactor in the presence of a catalyst under reactive conditions; withdrawing a polymeric product and a stream comprising unreacted monomer gases; cooling said stream comprising unreacted monomer gases to form a mixture comprising a gas phase and a liquid phase and reintroducing said mixture into said reactor with sufficient additional monomer to replace that monomer polymerized and withdrawn as the product, wherein said liquid phase is vaporized, and wherein the stream comprises at least two inert condensing agents selected from the group consisting of alkanes, cycloalkanes, and mixtures thereof, each of the inert condensing agents having a normal boiling point less than 40° C.

    摘要翻译： 一种用于从单体制备聚合物的连续气流流化床聚合方法，包括在反应条件下，在催化剂存在下连续通过包含单体的气流通过流化床反应器; 取出聚合物和包含未反应的单体气体的物流; 冷却所述物流包含未反应的单体气体以形成包含气相和液相的混合物，并用足够的其它单体将所述混合物重新引入所述反应器，以代替作为产物聚合和取出的单体，其中所述液相被蒸发，其中 该流包含至少两种选自烷烃，环烷烃及其混合物的惰性缩合剂，每种惰性缩合剂的标准沸点低于40℃。

    Low molecular weight induced condensing agents
    5.
    发明申请
    Low molecular weight induced condensing agents 有权
    低分子量诱导冷凝剂

    公开(公告)号：US20070265400A1

    公开(公告)日：2007-11-15

    申请号：US11433682

    申请日：2006-05-12

    申请人： D. Fischbuch ,  Robert Hagerty ,  Sandy Hinds ,  Douglas Holroyd ,  Ai Vey Ng ,  Diwaker Singh

    发明人： D. Fischbuch ,  Robert Hagerty ,  Sandy Hinds ,  Douglas Holroyd ,  Ai Vey Ng ,  Diwaker Singh

    IPC分类号： C08F2/00

    CPC分类号： B01J8/1809 ,  B01J2208/00274 ,  B01J2219/00191 ,  C08F10/00 ,  C08F110/02 ,  C08F2400/02 ,  Y10S526/901 ,  C08F2/34 ,  C08F2/00

    摘要： The present invention relates to a continuous gas phase process comprising passing a recycle stream through a fluidized bed in a gas phase fluidized bed reactor, wherein the recycle stream comprises a low molecular weight dew point increasing component and a high molecular weight component, polymerizing an alpha-olefin monomer in the presence of a catalyst, and controlling an amount of the low molecular weight dew point increasing component in the recycle stream such that a dew point approach temperature of the recycle stream is less than the dew point approach temperature when operating with the higher molecular weight dew point increasing component alone.

    摘要翻译： 连续气相方法本发明涉及一种连续气相方法，包括使循环流通过气相流化床反应器中的流化床，其中再循环流包含低分子量露点增加组分和高分子量组分，聚合α 烯烃单体，并且控制再循环流中低分子量露点增加组分的量，使得当循环流中的露点接近温度小于露点接近温度时 较高分子量露点增加组分。