Thermodynamic Properties of The Binary Mixture of Monoethanolamine and Carbon Dioxide

Abstract

Homogenous densities in the liquid phase and VLE data were measured for the monoethanolamine and carbon dioxide system. The density data were obtained on five isotherms in a temperature range between 313.15 K and 353.15 K at atmospheric pressure and for two different loadings. VLE data were acquired on the isotherms 333.15 K, 353.15 K, and 373.15 K. These new data enabled the adjustment of an e-NRTL Gibbs excess model in combination with a cubic equation of state for CO2 to describe the gas phase. The model represents the partial pressure of CO2 above carbon dioxide loaded pure monoethanolamine well.