Analysis and Countermeasures of Agglomeration in Polypropylene Products Based on Spherizone Process
In this paper,the problem of material caking in a multi-zone reactor in Spherizone process was studied.Based on the analysis of six main reasons,such as electrostatic agglomeration,inadequate material circulation,unreasonable purge in the downdraft section,unreasonable setting of response time of the reactor discharge control valve,local propylene liquefaction in the reactor,impurities in the monomer raw material and sudden change in catalyst activity,the corresponding improvement measures were put forward.Among them,the measures include adjusting the flow rate of Atmer163,increasing the electrostatic meter and ultrasonic detection device,optimizing the response time of the discharge control valve,monitoring the pressure difference in the lifting section,etc.Through the comprehensive application of these measures,the caking problem can be effectively reduced,and the stability and production efficiency of the reactor can be improved.
spherizone technologyPPproduct cakingmulti zone reactor
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