Article,

Modeling of vapor-liquid-solid equilibrium in gas-aqueous electrolyte systems

, and .
Chemical Engineering Science, 54 (12): 1787 - 1802 (1999)
DOI: 10.1016/S0009-2509(99)00019-6

Abstract

A thermodynamic model for the description of vapor-liquid-solid equilibria is introduced. This model is a combination of the extended UNIQUAC model for electrolytes and the Soave-Redlich-Kwong cubic equation of state. The model has been applied to aqueous systems containing ammonia and/or carbon dioxide along with various salts. Model parameters valid in the temperature range 0-110°C, the pressure range from 0-100 bar, and the concentration range up to approximately 80 molal ammonia are given. The model parameters were evaluated on the basis of more than 7000 experimental data points.

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