热耦合技术应用于共沸精馏系统的研究  

Application of thermally coupled technology to azeotropic distillation system

作　　者：孙兰义[1] 昌兴武[1] 谭雅文[1] 李军[1] 李青松[1] 

机构地区：[1]中国石油大学化学化工学院,山东青岛266555

出　　处：《化工进展》2010年第12期2228-2233,共6页Chemical Industry and Engineering Progress

基　　金：中央高校基本科研业务费专项资金资助(27R0904075A)

摘　　要：以异丙醇脱水为例提出了一种热耦合共沸精馏序列的设计和优化方法,应用该方法可以将常规的双塔共沸精馏序列转化为热耦合共沸精馏序列并保证各操作参数的最优值。同时,利用Aspen Plus模拟软件,对异丙醇脱水的常规共沸精馏序列和热耦合共沸精馏序列进行了模拟分析。结果表明,热耦合共沸精馏序列不但提高了热力学效率、降低了能耗,并且能较大幅度地减少CO2排放量。The design and optimization procedures of a heterogeneous thermally coupled azeotropic distillation sequence（TCADS）were investigated for isopropanol dehydration.These procedures can be applied to retrofit a conventional two-column azeotropic distillation sequence to a TCADS and guarantee the optimal values of the design variables.Both the conventional azeotropic distillation sequence and TCADS for isopropanol dehydration were simulated with Aspen Plus.Results showed that not only higher thermodynamic efficiency but also reductions in energy consumption and CO2 emissions could be achieved by TCADS.

关 键 词：热耦合共沸精馏 节能 热力学效率 CO2排放 

分 类 号：TQ028.31[化学工程]