热耦萃取精馏分离应用于甲醇-四氢呋喃体系的优化设计分析  

Optimization design analysis on application of thermal coupled extraction distillation separation in methanol-tetrahydrofuran system

作　　者：郝增华[1] 张海静[1] 刘旭日[1] 连一苇 HAO Zeng-hua;ZHANG Hai-jing;LIU Xu-ri;LIAN Yi-wei(Handan Polytechnic College,Handan 056001,China;School of Materials Sciences and Engineering,Hebei University of Engineering,Handan 056038,China)

机构地区：[1]邯郸职业技术学院,河北邯郸056001 [2]河北工程大学材料科学与工程学院,河北邯郸056038

出　　处：《现代化工》2020年第9期194-197,共4页Modern Chemical Industry

基　　金：河北省社会科学发展研究课题(201701415);邯郸市社会科学重点研究课题(201515)。

摘　　要：甲醇-四氢呋喃属于共沸体系,传统分离工艺采用双塔串联萃取工艺进行分离纯化,即引入第三种组分,该工艺能耗、占地面积等相对较高。该研究尝试提出了一种新的工艺方法,即热耦萃取分离工艺(精馏工艺与萃取工艺相耦合);对相关工艺参数进行优化设计分析,得到最佳操作参数;与传统双塔萃取工艺相比,热耦萃取工艺可减少能耗约5%,同时设备投资及占地面积也相应减少。Methanol-tetrahydrofuran azeotropic system is traditionally separated and purified by two-column series extraction process,in which the third component is used.Such a traditional process consumes relatively high energy and occupies large land area.This study proposes a new separation process for separation of methanol-tetrahydrofuran azeotropic system,named thermal-coupled extraction separation process which integrating distillation process and extraction process.The optimum operation parameters are determined through optimization design analysis.Compared with traditional process,this thermal-coupled extraction distillation process can save energy by about 5%and cut down capital investment,and needs smaller land area.

关 键 词：共沸 热耦精馏 优化 操作参数 节能 

分 类 号：TH3[机械工程—机械制造及自动化]