Description of Vapor-Liquid Equilibrium for WeakElectrolyte NH_3-CO_2-H_2O System Using aNew Equation of State

左有祥; 郭天民

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Description of Vapor-Liquid Equilibrium for WeakElectrolyte NH_3-CO_2-H_2O System Using aNew Equation of State

更新时间：2025-12-16

- Description of Vapor-Liquid Equilibrium for WeakElectrolyte NH_3-CO_2-H_2O System Using aNew Equation of State
- CIESC Journal Issue 2, (1990)
- 作者机构：
  
  石油大学北京研究生部,石油大学北京研究生部 ,北京,北京
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 April 1990，
  
  Published：25 April 1990
- 稿件说明：
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左有祥, 郭天民. Description of Vapor-Liquid Equilibrium for WeakElectrolyte NH_3-CO_2-H_2O System Using aNew Equation of State[J]. CIESC Journal, 1990, (2).
DOI：

左有祥, 郭天民. Description of Vapor-Liquid Equilibrium for WeakElectrolyte NH_3-CO_2-H_2O System Using aNew Equation of State[J]. CIESC Journal, 1990, (2). DOI：

摘要

本文以扰动理论为基础建立了一个新的电解质溶液的状态方程.该方程考虑了分子—分子、分子—离子及离子—离子的二元交互作用

并被用来关联弱电解质体系NH_3-CO_2-H_2O的汽液平衡.该方程只有三个二元交互作用参数

其中两个是可调参数

比其他模型的参数少得多

而关联结果则与其他模型相仿

关联误差在实验误差的范围之内.取得了令人满意的结果.

Abstract

A new equation of state for electrolyte solutions is presented based on perturbation theory. Molecule-molecule

ion-molecule and ion-ion interactions are incorporated into the equation of state. The equation covers the entire fluid density range from zero to liquid-like densities. Therefore

it can be used for both phases in vapor-liquid equilibrium calculations.For mixtures without elec-trolytes the equation resembles the equation developed by Hu et al. (1984). The equation was used to correlate the vapor-liquid equilibrium for ammonia-carbon dioxide-water system with fewer parameters than other existing models. Satisfactory results were obtained

and they were equivalent to

or better than those from other models.

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