revamped

This article analyzes main factors that affect the actual operation of Demethanizer,and discusses the problems existing in the Demethanizer after the revamp of ethylene plant in Fushun,CCPC.

分了影响中国油化分公司乙烯公司乙烯装置甲塔运行的主要因素,并针乙烯装置改造后甲塔存在的问题进行了探讨。

This article analyze the condition of demethanizer after revamping. The operation state afterwards the revamp is summarized and further optimization of the demethanizer is given in the paper.

摘要通过乙烯装置甲塔系统改造后的运行状况的分，甲塔改造后的运行状态进行了总结，并为更进一步的优化工艺条件提出措施。

For the plate tower, in revamp for capacity increase the downpipe of the plates generally becomes the bottleneck, and flooding of the downpipe is liable to occur.The DJ type plates h...

于板式塔,在扩能改造中往往是塔板的降液管成为瓶颈,易发生降液管液泛现象。