丙烯聚合反应动态模拟  

Dynamic Modeling of Propylene Polymerization

作　　者：金学兰[1] 袁璞[1] 胡品慧[1] 董守平[1] 

机构地区：[1]石油大学自动化研究所,北京102249

出　　处：《化工自动化及仪表》2005年第3期7-10,共4页Control and Instruments in Chemical Industry

基　　金：国家高技术研究发展计划项目(2001AA413120)

摘　　要：从聚合反应动力学出发,根据反应系统内物料平衡和能量平衡原理,建立环管式丙烯聚合反应器动态数学模型,并采用机理模型与经验模型相结合的方法给出聚丙烯熔融指数推理模型。使用建立的数学模型,对反应器进行仿真试验,考察操作条件的变化对反应温度、浆液密度和产品熔融指数等产生的影响。采用该数学模型,可以准确地预测出操作条件的变化对产品质量的影响,对实际生产过程中产品质量的调整与控制具有指导意义。A mathematical model of propylene polymerization in loop reactor is developed based on the polymerization kinetics, material balance and energy balance. The melt index (MI) inferential model was derived by incorporating the reaction kinetics model with the empirical relationship between melt index and average molecular weight. Effects of changing operation conditions on reaction temperature, slurry concentration and MI were investigated. Simulation examples were presented. The model developed can be used in MI prediction.

关 键 词：聚合动力学 动态数学模型 聚丙烯 熔融指数 仿真 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]