丙烯聚合反应动态建模及在牌号切换中的应用  

Dynamic Modeling of Propylene Polymerization: Applications in Grade Transition

作　　者：金学兰[1] 袁璞[1] 胡品慧[1] 董守平[1] 

机构地区：[1]中国石油大学(北京)自动化研究所

出　　处：《系统仿真学报》2006年第8期2089-2091,2096,共4页Journal of System Simulation

基　　金：国家自然科学基金(60574009);中石油集团公司科技中青年创新基金(04E7027)

摘　　要：从丙烯聚合反应动力学出发、根据过程的质量平衡和能量平衡建立丙烯聚合反应器动态数学模型,并通过熔融指数影响因素分析,建立聚丙烯熔融指数预报模型,预报模型的计算结果与实际生产装置的化验数据吻合较好。使用开发的反应器动态数学模型和熔融指数模型,对环管法聚丙烯工艺的两种牌号切换过程进行仿真,从中选择合理的切换路线,从而缩短产品切换过程的过渡时间并减少过渡品量。A mathematical model for propylene polymerization was developed based on the polymerization kinetics, mass and energy balances. The melt index inferential model was derived from the variables which effected melt index and were validated by process data. These models were used for simulating grade transition operations of propylene polymerization in loop reactors. The simulation results show that shorter switching time and less of-specification products can be achieved by choosing grade transition routine.

关 键 词：聚丙烯 聚合反应动力学 动态模型 熔融指数 产品切换 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]