乙酸甲酯外部环流隔离壁反应蒸馏塔的设计与比较  

Design and comparison of methyl acetate external circulation dividing-wall reactive distillation column

作　　者：熊小然 苑杨[1] 陈海胜[1] 张亮[1] 王韶锋[1] 黄克谨[1] XIONG Xiao-ran YUAN Yang CHEN Hai-sheng ZHANG Liang WANG Shao-feng HUANG Ke-jin(College of Information Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China)

机构地区：[1]北京化工大学信息科学与技术学院,北京100029

出　　处：《现代化工》2017年第10期148-151,共4页Modern Chemical Industry

基　　金：国家自然科学基金项目(21076015;21376018;21576014;21676011);中央高校基本科研业务费专项资金(ZY1503)

摘　　要：选择了3种不同的外部环流设计并采用隔离壁蒸馏塔的拓扑结构。以乙酸和甲醇酯化反应生成乙酸甲酯和水反应体系为例,分别设计了底部-中部环流隔离壁反应蒸馏塔、中部-中部环流隔离壁反应蒸馏塔和双环流隔离壁反应蒸馏塔,并对其稳态性能进行了分析与比较。结果显示,双环流隔离壁反应蒸馏塔能够最大限度地强化内部物质和能量耦合,因而拥有最佳的稳态性能。Three different external circulation arrangements are adopted and the topological structure of dividingwall distillation column is adopted.Taking the esterification of acetic acid and methanol as an illustrative example,three dividing-wall reactive distillation columns are designed,one with an external circulation from the bottom to the medium stage of the prefractionator,one with an external circulation from the medium stage of the main column to the medium stage of the prefractionator,and one with double external circulation. Their steady-state performances are analyzed and compared.Results show that the column designed with double external circulation can furthest reinforce integration of internal mass and energy,therefore it has the best steady-state performance among the three columns.

关 键 词：隔离壁反应蒸馏塔 较不利相对挥发度 外部环流 过程设计 性能比较 

分 类 号：TQ028.3[化学工程]