The Measurement of Mixing Heat and the Prediction of Vapor-Liquid Equilibrium Data for Hydrocarbon-Alcohol Systems

岑沛霖; 朱自强

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The Measurement of Mixing Heat and the Prediction of Vapor-Liquid Equilibrium Data for Hydrocarbon-Alcohol Systems

更新时间：2025-12-16

- The Measurement of Mixing Heat and the Prediction of Vapor-Liquid Equilibrium Data for Hydrocarbon-Alcohol Systems
- CIESC Journal Issue 1, (1984)
- 作者机构：
  
  浙江大学化工系,浙江大学化工系
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 March 1984，
  
  Published：25 March 1984
- 稿件说明：
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岑沛霖, 朱自强. The Measurement of Mixing Heat and the Prediction of Vapor-Liquid Equilibrium Data for Hydrocarbon-Alcohol Systems[J]. CIESC Journal, 1984, (1).
DOI：

岑沛霖, 朱自强. The Measurement of Mixing Heat and the Prediction of Vapor-Liquid Equilibrium Data for Hydrocarbon-Alcohol Systems[J]. CIESC Journal, 1984, (1). DOI：

摘要

用PICKER动态型微量热计测量了三个温度下八个烃-醇二元系的混合热数据.提出了一个研究烃-醇系热力学性质的新的热力学模型——拟化学溶液模型(QCSM)

用该模型关联了混合热实验数据和部分体系的等温汽液平衡数据

计算值和实验值间符合良好.以混合热拟合得到的QCSM参数及其与温度的关系式

推算了8个烃-醇二元系的244个等温或等压汽液平衡数据

获得了满意的结果.汽相摩尔分数的平均误差为0.004—0.032.

Abstract

Mixing beat data were measured at three different temperatures by PICKER dynamic liquid flow micro-calorimeter for eight binary systems consisting of hydrocarbon and alcohol. A new thermodynamic model-Quasi Chemical Solution Model (QCSM) was suggested to study the thermodynamic properties of hydrocarbon-alcohol systems. The experimental data of mixing heat and isothermal vapor-liquid equilibria of some systems were correlated by the QCSM. The agreements between calculated and experimental data were satisfactory. From QCSM parameters and their relationships with temperature which were fitted in with heat of mixing

the 244 isothermal or isobaric vapor-liquid equilibrium data for 8 hydrocarbon-alcohol binary systems were predicted. Good results were obtained

and the average deviations of vapor phase mole fraction were within 0.004-0.032.

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