石油化工2013，Vol.42Issue(6)：641-645,5.
分隔壁萃取精馏塔分离C4烯烃与烷烃的模拟
Simulation of Separation of C40lefins and Alkanes Through Dividing Wall Extractive Distillation Column
高思亮 1田龙胜 1唐文成 1赵明 1吴巍1
作者信息
- 1. 中国石化石油化工科学研究院,北京100083
- 折叠
摘要
Abstract
A novel single column extractive distillation process for the separation of n-butane and trans-2-butene was proposed and simulated by means of the MultiFrac module of Aspen Plus software.The influences of solvent ratio,reflux ratio and distribution ratio of vapor phase on the separation efficiency and energy consumption were investigated.The simulation results show that under the conditions of the number of theoretical plates of main column and side column 40 and 10 respectively,solvent ratio 2.5,reflux ratio 3.5,and distribution ratio of vapor phase 2.5,the purities of the products n-butane and trans-2-butene can reach 99.0％(w),99.9％(w),respeetively which can meet the requirement of the separation.It was found that the novel process had higher energy efficiency than conventional extractive distillation process,the reboiler and condenser can save energy up to 17.31％ and 25.81％,respectively.The reason for the energy saving was discussed based on the analysis of the component concentration distributions in the dividing wall extractive distillation column.关键词
萃取精馏/分隔壁萃取精馏塔/分离/碳四馏分Key words
extractive distillation/ dividing wall extractive distillation column/ separation/ C4 fraction分类
化学化工引用本文复制引用
高思亮,田龙胜,唐文成,赵明,吴巍..分隔壁萃取精馏塔分离C4烯烃与烷烃的模拟[J].石油化工,2013,42(6):641-645,5.
