PR Equation of State with Effective Temperature Dependent Function and Its Application to Alcohol Containing Systems (Ⅱ) VLE for Mixtures

Chen Qunlai and Wang WenchuanBeijing Institute of Chemical Technology; Beijing

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PR Equation of State with Effective Temperature Dependent Function and Its Application to Alcohol Containing Systems (Ⅱ) VLE for Mixtures

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- PR Equation of State with Effective Temperature Dependent Function and Its Application to Alcohol Containing Systems (Ⅱ) VLE for Mixtures
- 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 Technology, Beijing. PR Equation of State with Effective Temperature Dependent Function and Its Application to Alcohol Containing Systems (Ⅱ) VLE for Mixtures[J]. CIESC Journal, 1991, (2).
DOI：

Chen Qunlai and Wang WenchuanBeijing Institute of Chemical Technology, Beijing. PR Equation of State with Effective Temperature Dependent Function and Its Application to Alcohol Containing Systems (Ⅱ) VLE for Mixtures[J]. CIESC Journal, 1991, (2). DOI：

摘要

本文将前文(I)报中提出的实用温度函数型PR方程推广到了流体混合物.根据前人工作

提出了一个总括性的混合规则

针对不同体系可得到其简化形式.非极性-非极性

非极性-极性

极性-极性体系

尤其是含醇体系的低、高压下的二元及三元汽液相平衡计算表明

本文的模型有较广的适用性.此外还提出了处理超临界组分的方法

较准确地推算了含氢系统的汽液平衡.总之

本文提出的一套描述复杂体系汽液平衡的方法

可望用于指导低碳酸及其他工业实际体系的分离过程开发.

Abstract

The ETDF-PR equation of state proposed in Part( I )of this work was extended to the vapor-liquid equilibria of mixtures. A comprehensive mixing rule and fugacity coefficient expression were proposed

which can be simplified into different versions for the specific systems. Binary and ternary VLE for nonpolar-nonpolar

nonpolar-polar

polar-polar systems (mainly alcohol-containing systems) at moderate and high pressures were calculated with satisfactory accuracy. Moreover

a method to handle the supercritical component for the ETDF-PR equation was presented

and used for hydrogen-containing systems successfully. In conclusion

a practical procedure for describing VLE for complex systems was suggested in this work. Apparently

this procedure can be applied to the process development for the separation of the higher alcohols and other real systems.

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