Vapor-Liquid Equilibria in Cl<SUB>2</SUB>-CO<SUB>2</SUB> System

DOI Web Site Web Site

Bibliographic Information

Other Title
  • 塩素-炭酸ガス系の気液平衡
  • エンソ タンサン ガスケイ ノ キエキ ヘイコウ

Search this article

Abstract

This paper describes the vapor-liquid equilibria of Cl2 and CO2 to separate CO2 from liquid chlorine. The vapor-liquid equilibria were measured with a 300 ml autoclave made of glass, which was set up in a constant temperature freezer, under the temperature range from 16 to −50°C and the pressure range from 1 to 10 atm. There were six steps in the experimental operations : charging gaseous pure chlorine, liquifying it, dissolving carbon dioxide, equilibration in the desired conditions, sampling the equilibrium vapor and liquid, and sample analysis. The composition of vapor and liquid was determined by gas-chromatographic analysis.<BR>The results were analyzed thermodynamically and compared with the calculated lines of the ideal solution, the regular solution and the modified regular solution. The calculated results for these solutions were in fairly good agreement with the experimental data in the gas phase, but in the liquid phase, considerable deviations from the experimental data were observed in each model. To explain the deviations, the interaction parameter (mL) between Cl2 and CO2 was introduced to the modified regular solution model. The value, mL=0.94, was in close agreement with the data and was almost independent of temperature beyond −20°C, while the value of mL decreased to 0.93 at −30°C and 0.925 at −40°C.

Journal

Keywords

Details 詳細情報について

Report a problem

Back to top