Abstract
In this work, we present new measurements on the solubility of carbon dioxide in a deep eutectic solvent (DES) containing choline chloride and glycerol (1:2mole ratio) over the temperature range (303.15 to 343.15)K and pressures up to 6.3MPa. Experimental measurements were carried out in a thermogravimetric microbalance, and the effects of buoyancy on the measurements were accounted for. Results indicated that the solubility of the gas in the solvent increased almost linearly with pressure and decreased with increasing temperature. The dependence of the carbon dioxide solubility in the DES (in molality) on temperature and pressure were accurately represented by an extended Henry’s law model at an average absolute deviation of 1.4%.
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