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    • 1. 发明申请
    • PROCESS AND APPARATUS FOR THE POLYMERISATION OF OLEFINS
    • 烯烃聚合的方法和装置
    • WO2012084628A1
    • 2012-06-28
    • PCT/EP2011/072701
    • 2011-12-14
    • INEOS COMMERCIAL SERVICES UK LIMITEDBELL, Andrew DavidCHAMAYOU, Jean-LouisRAMSAY, Kevin Peter
    • BELL, Andrew DavidCHAMAYOU, Jean-LouisRAMSAY, Kevin Peter
    • C08F10/00C08F2/34
    • C08F10/00C08F2/34C08F110/02C08F2/007
    • The present invention relates to a process for the gas-phase polymerisation of olefins in a fluidised bed reactor, which process comprises: a) passing a fluidising gas comprising one or more olefin monomers through a fluidised bed of polymer particles in the presence of a polymerisation catalyst. b) withdrawing a first gaseous stream comprising 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 comprising residual solid particles, d) passing at least a portion of the second gaseous stream to one or more heat exchangers to remove the heat of reaction, and e) recycling at least a portion of the cooled stream from step (d) as the fluidising gas in step (a), characterised in that the rate of fouling of the one or more heat exchangers is such that i) the increase in pressure drop across the heat exchangers is equivalent to less than 5% per year, and/or ii) the decrease in heat transfer of the heat exchangers is equivalent to less than 5% per year.
    • 本发明涉及在流化床反应器中烯烃气相聚合的方法,该方法包括:a)在聚合反应存在下使包含一种或多种烯烃单体的流化气体通过聚合物颗粒的流化床 催化剂。 b)从反应器顶部排出包含固体颗粒的第一气流,c)将第一气流送至气/固分离器,从其中分离固体颗粒,形成包含残留固体颗粒的第二气流,d)通过 至少一部分所述第二气流到一个或多个热交换器以去除反应热,以及e)将步骤(d)中的至少一部分冷却流作为步骤(a)中的流化气体再循环,其特征在于 因为一个或多个热交换器的结垢率使得i)热交换器上的压降的增加等于每年小于5%,和/或ii)热量的传热减少 交换机每年相当于不到5%。