The fluidizing characteristics and powder discharge process of gas fluid bed reactor with Hypol process were described.
介绍了聚丙烯流化床反应器流化特性和卸料过程；
General summary of technical innovation of HYPOL PP process was made, the article compared different revamping patterns and presented a new idea about technical innovation of old unit.
对三井油化聚丙烯装置技术改造做了全面的总结，对不同的改造模式进行了对比，同时对旧装置的技术改造提出了新的思路。
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