[1]林军,顾正桂.溶碱萃取剂对乙醇—水体系汽液平衡的影响[J].南京师范大学学报(工程技术版),2003,03(04):011-14.
　Lin Jun,Gu Zhenggui.Effect of Alkali Extraction Solvent on Vapor-Liguid Equilibrium of Ethanol-Water System[J].Journal of Nanjing Normal University(Engineering and Technology),2003,03(04):011-14.
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溶碱萃取剂对乙醇—水体系汽液平衡的影响
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南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
03卷
期数:
2003年04期
页码:
011-14
栏目:
出版日期:
2003-12-30

文章信息/Info

Title:
Effect of Alkali Extraction Solvent on Vapor-Liguid Equilibrium of Ethanol-Water System
作者:
林军; 顾正桂
南京师范大学化学与环境科学学院, 210097, 南京
Author(s):
Lin Jun; Gu Zhenggui
College of Chemistry and Environmental Science, Nanjing Normal University, 210097, Nanjing, PRC
关键词:
汽液平衡;  萃取精馏;  关联计算
Keywords:
extractive rectification;  VLE ethanol;  interactive calculation
分类号:
O642
摘要:
提出了溶碱萃取精馏制取无水乙醇的方法 .通过恒沸点相对挥发度的测定与全浓度下的汽液平衡测定 ,考察了溶碱萃取剂对乙醇—水体系汽液平衡的影响 .采用LIQUAC模型与Wilson模型相结合的关联计算方法 ,进行了汽液平衡数据的预测与萃取精馏工艺条件的模拟 .结果表明 ,与传统的溶盐萃取剂相比 ,溶碱萃取剂可以更好地提高乙醇—水体系的分离效果
Abstract:
An extrative rectification with alkali for absolute ethanol production was suggested. The effect of alkali extraction solvent on vapo-r liguid equilibrium of ethano-l water system was studied by determinations of relative volatility at azotropic point and vapor- liquid equilibrium under total concentration. Prediction on vapor- liquid equlibrium and simulation of process prameters for extraction-rectification were made using interactive calculation method by combination of LIQUAC andWilsonModels. The results shows that the separation of ethano-l water system is better by ertraction agent with alkali than by traditional extractive rectification with salt solvent.

参考文献/References:

[ 1] 段占庭, 雷良恒, 周荣琪. 加盐萃取精馏的研究( Ⅰ ) [ J] . 石油化工, 1980, 9( 6) : 350.
[ 2] 雷良恒, 段占庭, 徐永福. 加盐萃取精馏的研究( Ⅱ ) [ J] . 石油化工, 1982, 11( 6) : 404.
[ 3] 顾正桂, 章高健. 萃取法回收水溶液中乙醇的模拟及实验[ J] . 化学工程, 1995, 23( 5) : 66.
[ 4] 林军. 改进型Gillispie 平衡釜在汽液平衡测定中的应用[ J] . 南京动力高等专科学校学报, 1999, ( 4) : 31.
[ 5] Gmehling J. Vapor-Liquid equilibr ium data collection[ J] . Chemistry data series, 1977, ( 1) : 128.
[ 6] Yan Weidong, Tan T C. Prediction of vapor- liquid equilibria in mixed- solvent electrolyte systems using the group contribution concept[J] . Fluid Phase Equilibria, 1999, 162: 97.
[ 7] Eokert C A. A modified equation of state for phase equilibrium calculations[ J] . Ind Eng Chem Process, 1971, 10( 4) : 57.
[ 8] 顾正桂, 赵维彭. 苯中回收微量噻吩的研究[ J] . 化学工程, 1992, 20( 1) : 25.

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备注/Memo

备注/Memo:
作者简介: 林军, 1971- , 南京工业大学博士研究生, 南京师范大学化学与环境科学学院讲师, 主要从事化工分离的研究.
更新日期/Last Update: 2013-04-29