用分隔壁精馏塔分离三组分混合物的节能研究  

Study of energy-saving of separation ternary mixture with divided wall distillation column

作　　者：叶青[1] 裘兆蓉[1] 施凤芹[1] 段红[1] 

机构地区：[1]江苏工业学院化工系,江苏常州213164

出　　处：《化学工程》2007年第11期54-57,共4页Chemical Engineering(China)

基　　金：江苏省自然科学基金资助项目(BK2004035);中国石油化工股份有限公司科技开发部基金资助项目(X505021)

摘　　要：为了比较分隔壁精馏塔与常规精馏流程能耗,确定其应用范围,采用Aspen plus软件中的精馏严格模型,对2种常规精馏流程和3种分隔壁精馏塔进行模拟计算,比较了各种分隔壁精馏塔序的节能效果。结果表明,中间组分的摩尔分数越高,分隔壁精馏塔的节能效果越好,分隔壁精馏塔可用于分离中间组分摩尔分数较高的混合物,且适于分离指数在0.61至2.1之间的物系。分隔壁侧线精馏塔适用于分离指数≥1、轻组分摩尔分数较高的混合物。分隔壁侧线提馏塔适于重组分摩尔分数较高的混合物。To compare the energy consumption of divided wall distillation column with conventional distillation sequences and to ascertain the limitations of the divided wall distillation column, two kinds of conventional distillation sequences and three types of divided wall distillation columns were simulated with the software of Aspenplus. The energy-saving effects of a series of divided wall distillation columns were compared. The results show that the divided wall distillation column is mainly applicable for the compounds of middle components and the components with ESI of 0.61-2.1. The divided wall distillation column with side-rectifier is mainly applicable for the compounds of the components with separating index ≥ 1 and light components. The divided wall distillation column with side-stripper is mainly applicable for heavy components.

关 键 词：分隔壁精馏塔 分隔壁侧线精馏塔 分隔壁侧线提馏塔 节能 

分 类 号：TQ028.31[化学工程]