The Thermodynamic Consistency Test of VLE for Salt-Containing System

陈斐; 朱自强; 姚善泾

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The Thermodynamic Consistency Test of VLE for Salt-Containing System

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- The Thermodynamic Consistency Test of VLE for Salt-Containing System
- CIESC Journal Issue 2, (1989)
- 作者机构：
  
  浙江大学化工系,浙江大学化工系,浙江大学化工系 ,杭州,杭州,杭州
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 April 1989，
  
  Published：25 April 1989
- 稿件说明：
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陈斐, 朱自强, 姚善泾. The Thermodynamic Consistency Test of VLE for Salt-Containing System[J]. CIESC Journal, 1989, (2).
DOI：

陈斐, 朱自强, 姚善泾. The Thermodynamic Consistency Test of VLE for Salt-Containing System[J]. CIESC Journal, 1989, (2). DOI：

摘要

将拟二元方法与Barker法相结合可从三元含盐体系的P-T-x数据推算相应的平衡汽相组成

逐点比较其推算值与实测值

即可检验汽液平衡数据的热力学一致性.具体地对醇(乙醇、异丙醇)-水-盐(氯化钙、醋酸钾)体系的等压汽液平衡数据进行了热力学一致性检验

所得结果满意.含盐溶液P-T-x推算汽相组成的成功

为改进含盐溶液汽液平衡的测试手段创造了条件.

Abstract

By combining a pseudo-binary model with the Barkers method

it ispossible to predict the vapor phase mole fractions of a three-component salt-containing system from the relative P-T-x

data. The predicted values were compared with the experimental ones

point by point

to test the thermody-narnic consistency of VLE data. The isobaric VLE data for alcohol (ethanol

isopropanol)-water-salt(CaCl2

KAc)systems were tested

and good results were obtained. The success in predicting vapor phase mole fractions from P-T-x data paves the way for improving the determination of VLE for salt-contain-

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