甲醇装置酸性尾气工业处理试验  

Industrial Test on Treatment of Acidic Tail Gas from Methanol Plant

作　　者：殷树青[1] 毛兴民[1] 唐昭峥[1] 刘大华[2] 

机构地区：[1]齐鲁石化公司研究院,山东淄博255400 [2]齐鲁石化公司胜利炼油厂,山东淄博255434

出　　处：《化工环保》2004年第6期444-448,共5页Environmental Protection of Chemical Industry

摘　　要：进行了甲醇装置酸性尾气工业处理试验,用体积分数为25％-30％的N-甲基二乙醇胺(MDEA)水溶液提浓该酸性尾气,提浓后的酸性尾气送至克劳斯硫磺回收装置回收硫磺。在再生塔底温度为124℃、气液比为80、吸收塔塔板为11层的条件下脱除H2S,净化气中H2S体积分数小于0.25％,去除率为97.3％。该项目的实施消除了HCN、CH3OH、H2S等有毒气体对大气环境的污染,同时可回收硫磺736 t／a,具有较大的社会效益和一定的经济效益。The commercial test on the treatment of acidic tail gas from methanol plant was carried out. The acidic gas was concentrated first with 25%-30% N - methyldiethanol amine (MDEA) solution, then sent to Claus sulfur recovery plant to recover sulfur. The volume fraction of H2S in the purified gas is less than 0.25% with over 97.3% of removal rate. The operating conditions are as follows: 124℃ of regeneration column bottom temperature,80 of gas/liquid ratio and 11 of inlet plate number of the absorber column for lean amine solution. The execution of the project can eliminate air pollution by poisonous gases,such as HCN,CH3OH,and H2S,and recover 736 t of sulfur each year,with large social and certain economic benefits.

关 键 词：酸性尾气 N-甲二乙醇胺 净化 

分 类 号：X701[环境科学与工程—环境工程]