«Previous Article|Table of Contents|Next Article»

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:

2003年04期

Page:

11-14

Research Field:

Publishing date:

Info

Title:

Effect of Alkali Extraction Solvent on Vapor-Liguid Equilibrium of Ethanol-Water System

Author(s):

Lin Jun; Gu Zhenggui

College of Chemistry and Environmental Science, Nanjing Normal University, 210097, Nanjing, PRC

Keywords:

extractive rectification;  VLE ethanol;  interactive calculation

PACS:

O642

DOI:

-

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.

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.

Memo

Memo:

-

Common functions

Last Update: 2013-04-29