revamped

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.

摘要通过乙烯装置脱甲烷塔系统改运行状况分，对脱甲烷塔改运行状态进行总结，并为更进步优化工艺条件提出措施。

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.

分响中国石油抚顺石化分公司乙烯公司乙烯装置脱甲烷塔运行主要因素,并针对乙烯装置改脱甲烷塔存在问题进行探讨。

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...

对于板式塔,在扩能改中往往是塔板降液管成为瓶颈,易发生降液管液泛现象。