摘要
以Amoco气相工艺HSBR反应器为研究对象,根据相平衡、物料平衡和聚合反应动力学方程,针对两种不同的假设分别建立了丙烯聚合机理模型(模型I和模型II),对聚丙烯的熔融指数(MI)、粒子平均停留时间(RTD)等参数进行预测,并利用现场数据对两个模型进行了仿真,仿真结果显示两个模型均可以实时预报聚丙烯的熔融指数,模型I预测精度稍高;但模型II对于粒子平均停留时间的预测要好于模型I。因此,可以采用模型I预测MI,模型II预测RTD,指导实际生产。
Based on the Amoco's gas -phase HSBR,with the phase equilibrium、material balances and propylene polymerization kinetics,two theoretically-based models(model I and model II)of HSBR are set up with two different assumptions to calculate Melt Index(MI )of PP and RTD.Using the industrial data,the two models are simulated.The results show that both of the MI predictions of the two models are quite satisfactory,and the precision of model I is a little better than model II,but on the prediction of RTD,the performance of model II is better than model I.So model I can be used for MI prediction and model II can be used for RTD prediction to instruct the industrial operation.
出处
《计算机工程与应用》
CSCD
北大核心
2004年第21期203-205,209,共4页
Computer Engineering and Applications
关键词
气相丙烯聚合
HSBR反应器
熔融指数
机理模型
仿真
Gas-phase propylene polymerization,HSBR,Melt Index,theoretically-based model,simulation
