Perturbed-Hard-Chain Equation of State for Vapor-Liquid Equilibria for Systems Containing Polar Solvents

潘沙青; 麻德贤

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Perturbed-Hard-Chain Equation of State for Vapor-Liquid Equilibria for Systems Containing Polar Solvents

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- Perturbed-Hard-Chain Equation of State for Vapor-Liquid Equilibria for Systems Containing Polar Solvents
- CIESC Journal Issue 2, (1986)
- 作者机构：
  
  北京化工学院,北京化工学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 June 1986，
  
  Published：25 June 1986
- 稿件说明：
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潘沙青, 麻德贤. Perturbed-Hard-Chain Equation of State for Vapor-Liquid Equilibria for Systems Containing Polar Solvents[J]. CIESC Journal, 1986, (2).
DOI：

潘沙青, 麻德贤. Perturbed-Hard-Chain Equation of State for Vapor-Liquid Equilibria for Systems Containing Polar Solvents[J]. CIESC Journal, 1986, (2). DOI：

摘要

本文探讨了扰动硬链(perturbed-hard-chain)理论状态方程式对含有极性溶剂CH_3OH、H_2O及CO_2、CO、H_2、CH_4、N_2、Ar等气体溶质组成的混合体系的适用性.优化计算文献数据求得上列各种物质的有关参数.发现

无论是极性物质对还是极性物质与非极性物质对的调整参数

都与温度有关

应按温度的单变量多项式β=a_0+a_1T+a_2T~2取值.应用这些参数计算CH_3OH-H_2O-CO_2-CO-H_2-CH_4-N_2-Ar八元体系汽液相平衡数据

结果满意.

Abstract

The present paper explores the applicability of the perturbed-hard-chain equation of state for estimating vapor-liquid equilibria for solutions of CO2

CH4

N2 and Ar in polar solvents such as H2O and CH3OH. Related parameters thus calculated

from literature data

indicated that for mixtures consisting of polar compounds alone or of polar and nonpolar compounds

the adjustable parameters are all temperature-related

and should be computed from the polynomial equation: A computer program was formulated for the eight-component system

CH3OH-H2O-CO2-CO-H2-CH4-N2-Ar. The resulting simulation for the vapor-liquid separation in methanol production checked closely the flowsheet data of Lurgi

Speichim and Billingham.

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