聚丙烯反应器的动态模拟

针对聚丙烯生产中广泛采用的ＣＳＴＲ反应器，建立了了聚合过程的动态模型，包括固体物料和催化剂、氢气浓度、熔融指数的动态方程。本模型可以准确地计算ＣＳＴＲ反应器的浆液浓度、产物固含率、催化剂残贸率、熔融指数等重要的生产指标。对产品牌号切换过程的仿真结果表明，丙烯聚合反应的质量闭环控制能带来巨大的经济效益。

Dynamic Simulation of Polypropylene Reactors

CSTR is widely used in industrial propylene polymerization.A dynamic model of the reactor is developed,consisting of the differential equations of solid materials and catalysts,concentration of hydrogen and melt flow rate of polypropylene.The model can count the important index of production,such as slurry concentration in the reactor,solid contents of products,catalyst residual and MFR.A simulation of product grade change is carried out and the results show the advantage of closed loop product quality control.