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    • 10. 发明申请
    • Gas-phase olefin polymerization process
    • 气相烯烃聚合工艺
    • US20070004879A1
    • 2007-01-04
    • US10553476
    • 2004-04-01
    • Giuseppe PenzoGabriele MeiGerben Meier
    • Giuseppe PenzoGabriele MeiGerben Meier
    • C08F2/00
    • B01J8/1827B01J8/1872B01J2208/00256B01J2208/00274B01J2208/003C08F10/00Y10S526/901Y10S526/918C08F2/01C08F2/34
    • A continuous process for the olefin polymerization in a fluidized bed reactor, said process comprising continuously passing a gaseous stream comprising one or more α-olefin monomers through the fluidized bed in the presence of a polymerization catalyst under reactive conditions, withdrawing polymeric product and unreacted fluids from the reactor, cooling part of said unreacted fluids below the dew point to form a two-phase mixture of gas and condensed liquid and reintroducing said two-phase mixture into the reactor, the process being characterized in that said twophase mixture is reintroduced under the distribution plate of the reactor so that a part of condensed liquid is separated from the gas and is successively fed above the fluidized bed through an external pipe connecting the bottom of the reactor to a point situated above the upper limit of the fluidized bed of polymer particles.
    • 在流化床反应器中烯烃聚合的连续方法,所述方法包括在反应条件下,在聚合催化剂存在下连续地通过包含一种或多种α-烯烃单体的气流通过流化床,将聚合物和未反应的流体 从反应器中将所述未反应流体的部分部分冷却至低于露点以形成气体和冷凝液体的两相混合物,并将所述两相混合物重新引入反应器中,其特征在于将所述两相混合物重新引入到 分配板,使得一部分冷凝液体与气体分离,并通过将反应器底部连接到位于聚合物颗粒流化床上限之上的点连续地供入到流化床上方 。