一种新型多效四塔精馏甲醇工艺流程研究  

Study on A New Type of Multi-effect Four-column Methanol Distillation Process

作　　者：崔秋娟[1] CUI Qiu-juan(School of Chemical Engineering and Technology,Shaanxi Institute of Technology,Shaanxi Xi'an 710302,China)

机构地区：[1]陕西国防工业职业技术学院化学工程学院,陕西西安710302

出　　处：《广州化工》2022年第15期156-158,共3页GuangZhou Chemical Industry

摘　　要：提出一种新型多效四塔精馏甲醇工艺,采用热集成技术,用加压塔塔顶蒸气和中压塔塔底部分液体换热,中压塔塔顶蒸气和常压塔塔底部分液体换热,有效利用冷热流,形成两个双效精馏。通过PRO/Ⅱ化工模拟计算软件对流程进行稳态模拟和分析,对操作参数进行优化。结果表明:甲醇四塔多效工艺方案合理,产品质量优良,流程操作稳定,能源消耗显著减小,具有良好的社会意义。A new multi-effect and four-column methanol distillation process was proposed.Heat integration technology was used to transfer heat between steam at the top of pressurized column and part of liquid at the bottom of medium-pressure column,and heat between steam at the top of medium-pressure column and part of liquid at the bottom of atmospheric pressure column.The process was simulated and analyzed by PRO/Ⅱchemical simulation software,and the operation parameters were optimized.The results showed that the methanol four-tower multi-effect process had a reasonable scheme,excellent product quality,stable process operation and significantly reduced energy consumption,which had a good social significance.

关 键 词：甲醇多效精馏 热集成技术 模拟优化 节能环保 

分 类 号：TQ064[化学工程]