PR Equation of State with Effective Temperature Dependent Function and Its Application toAlcohol Containing Systems ( I ) Vapor Pressures for Pure Substances

Chen Qunlai and Wang WenchuanBeijing Institute of Chemical Engineering; Beijing

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PR Equation of State with Effective Temperature Dependent Function and Its Application toAlcohol Containing Systems ( I ) Vapor Pressures for Pure Substances

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- PR Equation of State with Effective Temperature Dependent Function and Its Application toAlcohol Containing Systems ( I ) Vapor Pressures for Pure Substances
- CIESC Journal Issue 2, (1991)
- 作者机构：
  
  北京化工学院,北京化工学院 ,北京,北京
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 April 1991，
  
  Published：25 April 1991
- 稿件说明：
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Chen Qunlai and Wang WenchuanBeijing Institute of Chemical Engineering, Beijing. PR Equation of State with Effective Temperature Dependent Function and Its Application toAlcohol Containing Systems ( I ) Vapor Pressures for Pure Substances[J]. CIESC Journal, 1991, (2).
DOI：

Chen Qunlai and Wang WenchuanBeijing Institute of Chemical Engineering, Beijing. PR Equation of State with Effective Temperature Dependent Function and Its Application toAlcohol Containing Systems ( I ) Vapor Pressures for Pure Substances[J]. CIESC Journal, 1991, (2). DOI：

摘要

本文在对立方型状态方程的详细分析基础上

采用一种实用的与温度有关的a函数表达式

修正了Peng-Robinson状态方程式.用其计算包括非极性

极性和量子流体的52种性质广泛的纯物质

特别是低碳醇混合物中各组分的饱和蒸汽压

获得了令人满意的结果.与多种常见的状态方程式相比较

尤其是对极性流体

本文有明显改进.

Abstract

An effective temperature dependent function for the a expression was used to modify the Peng-Robinson equation. The ETDF-PR equation was used for vapor-liquid equilibria calculations for 52 pure substances

including non-polar

quantum

and polar fluids. The calculated vapor pressures were compared with those from several conventional equations of state. The results showed that this work is a good improvement

in particular

for the polar fluids and the higher alcohols of interest.

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