[1]叶 青,熊晓娟,秦继伟,等.萃取和热集成变压精馏分离异丙醇与异丙醚的模拟[J].常州大学学报(自然科学版),2015,(01):46-49.[doi:10.3969/ j.issn.2095-0411.2015.01.009]
　YE Qing,XIONG Xiao-juan,QIN Ji-wei,et al.Simulation of the Separation for Isopropanol and Diisopropyl ether by Extractive Distillation and Heat Integration Pressure Swing Distillation[J].Journal of Changzhou University(Natural Science Edition),2015,(01):46-49.[doi:10.3969/ j.issn.2095-0411.2015.01.009]
点击复制

萃取和热集成变压精馏分离异丙醇与异丙醚的模拟()
分享到：

常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2015年01期
页码:
46-49
栏目:
化学化工
出版日期:
2015-01-25

文章信息/Info

Title:
Simulation of the Separation for Isopropanol and Diisopropyl ether by Extractive Distillation and Heat Integration Pressure Swing Distillation
作者:
叶 青; 熊晓娟; 秦继伟; 徐 红; 张 浩
常州大学 石油化工学院,江苏 常州 213164
Author(s):
YE Qing; XIONG Xiao-juan; QIN Ji-wei; XU Hong; ZHANG Hao
School of Petrochemical Engineering,Changzhou University,Changzhou 213164,China
关键词:
异丙醇;  异丙醚;  萃取精馏;  变压精馏
Keywords:
isopropanol;  diisopropyl ether;  extractive distillation;  pressure swing distillation
分类号:
TQ 028.3
DOI:
10.3969/ j.issn.2095-0411.2015.01.009
文献标志码:
A
摘要:
异丙醇-异丙醚形成二元共沸物,一般精馏方法很难分离。利用化工过程软件Aspen Plus,在异丙醇和异丙醚产物的摩尔分数达到0.999的条件下,以乙二醇为溶剂的萃取精馏流程和热集成变压精馏流程对异丙醇-异丙醚混合物分离进行模拟。以全年总费用最低为目标,确定萃取精馏流程两塔的理论板数、进料位置和溶剂进料位置以及热集成变压精馏流程的高压塔操作压力,两塔的理论板数,进料位置,得到两种流程的最优操作条件。从模拟结果可知,对于异丙醇-异丙醚混合物的分离,热集成变压精馏所需的全年总费用更低,比萃取精馏的全年总费用降低了10.86%。对于该混合物,热集成变压精馏流程要优于萃取精馏流程。
Abstract:
Diisopropyl ether and isopropanol can form a binary azeotrope which can not be separated by conventional distillation method.In this paper,comparison of extractive distillation and heat integration pressure swing distillation for isopropanol-diisopropyl ether separation is investigated by Aspen Plus, based on isopropanol and diisopropyl ether purities setting at 0.999 mol%.In order to get the lowest total annual cost, the optimization of trays,the feed position and the extractant feed position on the extractive distillation, and the operating pressure of the high pressure column, trays and the feed position on the pressure swing distillation is investigated. From the simulation results, it is found that heat integration pressure swing distillation is betterthan extractive distillation for the system of diisopropyl ether and isopropanol. It can save the cost by 10.86% compared with extractive distillation.

参考文献/References:

[1]刘杰,刘岗,王洪志.从异丙醇装置副产中分离精制异丙醚的工艺研究[J].化学工业与工程技术,2004, 25(5):8-10.
[2]叶青,黄路,陆叶倩,等.异丙醚-异丙醇-水三元共沸物的分离[J].化工进展,2011,30(7):1435-1439.
[3]王玉霞,张法庭,王勇.变压精馏分离异丙醇-二异丙醚工艺模拟[J].山东化工,2011,40(8):20-22.
[4]Gmehling J,Menke J,Krafczyk J,et al.Azeotropic Data[M].New York:Wiley,2004.
[5]缪英,张春林,叶青.间歇萃取精馏分离叔丁醇与水共沸物的研究[J].常州大学学报(自然科学版),2012,24(4):33-36.
[6]杨德明,王新兵,孙磊.热集成变压精馏分离甲苯-异丙醇的模拟[J].化学工程,2011,39(2):10-13.
[7]William L Luyben.Comparison of extractive distillation and pressure-swingdistillation for acetone/methanol separation[J].Ind Eng Chem Res,2008,47(8):2696-2707.
[8]黄路,叶青,孙文雅.间歇精馏分子异丙醇-水二元共沸物的模拟[J].常州大学学报(自然科学版),2011,23(3):33-36.
[9]张秋荣,许前会.异丙醇-异丙醚二元体系的汽液平衡数据的测定及关联[J].河南化工,2003,20(10):11-13.
[10]William L Luyben.Design and control of the methoxy-methyl-heptane process[J].Ind Eng Chem Res,2010,49(13):6164-6175.

备注/Memo

备注/Memo:
基金项目:中国石油化工股份有限公司基金项目(411024)。 作者简介:叶青(1968-),女,上海人,教授。
更新日期/Last Update: 2015-01-25