聚丙烯环管中试装置的改造与优化

聚丙烯高效催化剂及工程塑料研发装置反应器的核心是一个预聚反应器和两个环管反应器,第一环管反应器出料采用桥路连接,第二环管出料系统采用程序控制开关阀交替开关的间歇式出料方式。由于环管桥路设计不当,造成两个环管聚合反应的不平衡:第一环管反应热堆积,导致爆聚,第二环管无法建立反应。第二环管的间歇出料方式设计则限制了产量。针对上述设计缺陷,采用环管桥路尺寸减小、位置更改等手段解决第一环管爆聚、第二环管无法建立反应的问题;通过在出料管线上并联一组开关阀、优化控制组态来达到调节产量目的。

Transformation and Optimization of Propylene Loop Pilot Plant

The core of reactor of R&D plant for PP high-effective catalyst and engineering plastics is a prepolymerization reactor and two loop reactors.The discharging of the first loop reactor adopts bridge connection, and the discharging system of the second loop adopts intermittent discharging mode through alternation switch with program control switching valve.The improper design of bridge caused unbalance of polymerization reaction in the two loops:the heat of reaction was stacked in the first loop and caused bu...