Journal
THERMOCHIMICA ACTA
Volume 551, Issue -, Pages 14-19Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.tca.2012.09.041
Keywords
Deep eutectic solvent; Choline chloride; Ethylene glycol; Extended Henry's law equation; Solubility
Funding
- National Science Council of the Republic of China [NSC 99-2221-E-033-044-MY3]
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The solubility of carbon dioxide in a eutectic mixture containing choline chloride and ethylene glycol was determined for temperatures 303.15-343.15 K and pressures up to 6 MPa using a thermogravimetric microbalance. The effects of buoyancy on the experimental measurements were accounted for. Buoyancy corrections were estimated by using a highly accurate equation of state in the calculation of the density of carbon dioxide, and a Tait-type equation in estimating the density of the deep eutectic solvent. An extended Henry's law equation was applied to accurately represent the solubility of carbon dioxide in the DES (in molality) as a function of temperature and pressure. (C) 2012 Elsevier B.V. All rights reserved.
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