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 摘要通過乙烯裝置脫甲烷塔系統(tǒng)改造后的運行狀況的分析,對脫甲烷塔改造后的運行狀態(tài)進行了總結(jié),并為更進一步的優(yōu)化工藝條件提出措施。