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    • 83. 发明授权
    • Process and apparatus for the polymerisation of olefins
    • 用于烯烃聚合的方法和设备
    • US09394382B2
    • 2016-07-19
    • US13988794
    • 2011-12-14
    • Andrew David BellJean-Louis ChamayouKevin Peter Ramsay
    • Andrew David BellJean-Louis ChamayouKevin Peter Ramsay
    • C08F2/34B01J8/24B01J8/44C08F10/00C08F110/02
    • C08F10/00C08F2/34C08F110/02C08F2/007
    • Process for gas phase polymerization of olefins in a fluidized bed reactor by (a) passing a fluidizing gas containing at least one olefin monomer through a fluidized bed of polymer particles in the presence of a polymerization catalyst to produce polymer at a polymer production rate of C Tonnes/hour, (b) withdrawing a first gaseous stream containing solid particles from the top of the reactor, (c) passing the first gaseous stream to a gas/solids separator, separating solid particles therefrom, and forming a second gaseous stream containing residual solid particles, (d) passing a portion of the second gaseous stream to at least one heat exchanger to remove heat of reaction whereby residual solid particles contact the heat exchanger, and (e) recycling a portion of the cooled stream from step (d) as the fluidizing gas in step (a). The heat exchangers have a heat exchange surface area which totals less than 120×C m2.
    • 在流化床反应器中通过(a)在聚合催化剂存在下使包含至少一种烯烃单体的流化气体通过聚合物颗粒的流化床将烯烃气相聚合的方法以聚合物生产速率C 吨/小时,(b)从反应器顶部排出含有固体颗粒的第一气态流,(c)将第一气流送至气体/固体分离器,从其中分离固体颗粒,并形成含有残留物的第二气流 固体颗粒,(d)将第二气流的一部分通入至少一个热交换器以除去反应热,由此残留的固体颗粒接触热交换器,和(e)将来自步骤(d)的冷却流的一部分再循环, 作为步骤(a)中的流化气体。 热交换器的热交换面积总计小于120×Cm2。