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《Journal of Chemical Industry and Engineering(China)》 1990-04
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Vapor-Liquid Equilibrium of CO-CO_2-CH_3OH System

Weng Mengyan Shanghai Research Institute of Chemical Industry, Ministry of Chemical Industry, Shanghai  
In this study the vapor and liquid equilibrium compositions in a ternary system CO-CO2-CH3OH were determined statically under the conditions of t = -5, -30, -55℃, P = 23.57×l05Pa, 79.47×l05Pa and xCo2 = 0.02-0.3.Based on the experiment, the non-ideality of the gas phase was treated with the SRK equation of state, while that of the liquid phase was treated with the Wilson model for activity coefficients. The model parameters were determined with CO-CO2, CO-CH3OH and CO2-CH3OH constituent systems. The values calculated with the model are in good agreement with the experimental values.
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