Abstract
This work presents new experimental results for carbon dioxide (CO 2) solubility in aqueous 2-amino-2-methyl-1-propanol (AMP) over the temperature range of (298 to 328) K and CO 2 partial pressure of about (0.4 to 1500) kPa. The concentrations of the aqueous AMP lie within the range of (2.2 to 4.9) mol · dm −3. A thermodynamic model based on electrolyte non-random two-liquid (eNRTL) theory has been developed to correlate and predict the (vapour + liquid) equilibrium (VLE) of CO 2 in aqueous AMP. The model predictions have been in good agreement with the experimental data of CO 2 solubility in aqueous blends of this work as well as those reported in the literature. The current model can also predict speciation, heat of absorption, enthalpy of CO 2 loaded aqueous AMP, pH of the loaded solution, and AMP volatility.
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