Solubility of carbon dioxide in the solvent system (2-amino-2-methyl-1-propanol + sulfolane + water)

New sets of data for the solubility of CO2 in the amine solvent system of 2-amino-2-methyl-1-propanol (1) + sulfolane (2) + water (3) were presented in this work. The measurements were done at temperatures of 313.2, 333.2, 353.2, and 373.2 K and CO2 partial pressures up to 193 kPa. The investigated compositions were as follows: (i) w 1 = 16.5 % , w 2 = 32.2 % ; (ii) w 1 = 8.2 % , w 2 = 41.2 % ; (iii) w 1 = 22.3 % , w 2 = 27.7 % ; and (iv) w 1 = 30.6 % , w 2 = 19.4 % , where w is the mass percent of the component. The present solubility data was correlated by a modified Kent–Eisenberg model. The model reasonably represents the present solubility data, not only over the considered conditions, but also for a wider range of temperatures, partial pressures, and compositions.