Carbon Dioxide Capturing in a Deep Eutectic Solvent (DES) of Choline Chloride/Methyldiethanolamine (MDEA) and a DES-Water System at High Pressure–Experimental Study and Thermodynamic Modeling Using Perturbed-Chain Polar Statistical Associating Fluid Theory (PC–PSAFT) Equation of State
Deep eutectic solvents (DESs) have emerged as promising alternatives to conventional alkanolamines for CO2 capture because of their low volatility, tunable molecular interactions, and ease of preparation. This study investigates CO2 solubility in a ChCl/MDEA (1:6) DES and its aqueous mixtures (5, 10, and 15 wt % wate...