Solubility of CO2 in a Choline Chloride + Urea Eutectic Mixture

The solubility of CO2 in choline chloride + urea eutectic mixtures was determined at 313.15 K, 323.15 K, and 333.15 K under pressures up to 13 MPa. The mole ratios of choline chloride to urea selected were 1:1.5, 1:2, and 1:2.5. The Henry’s constants and enthalpy of solution of the gas were calculat...

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Published in:Journal of chemical and engineering data 2008-02, Vol.53 (2), p.548-550
Main Authors: Li, Xiaoyong, Hou, Minqiang, Han, Buxing, Wang, Xiaoling, Zou, Lizhuang
Format: Article
Language:English
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Chemical thermodynamics
Chemistry
Exact sciences and technology
General and physical chemistry
Mixtures
Thermodynamic properties
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creator Li, Xiaoyong
Hou, Minqiang
Han, Buxing
Wang, Xiaoling
Zou, Lizhuang
description The solubility of CO2 in choline chloride + urea eutectic mixtures was determined at 313.15 K, 323.15 K, and 333.15 K under pressures up to 13 MPa. The mole ratios of choline chloride to urea selected were 1:1.5, 1:2, and 1:2.5. The Henry’s constants and enthalpy of solution of the gas were calculated from the solubility data. The solubility of CO2 in the mixtures increased with increasing pressure, and the solubility is more sensitive to pressure in the low-pressure range. The solubility of CO2 in the mixtures decreased with increasing temperature at all the pressures. The enthalpy of solution is negative at all conditions.
doi_str_mv 10.1021/je700638u
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subjects Chemical thermodynamics
Chemistry
Exact sciences and technology
General and physical chemistry
Mixtures
Thermodynamic properties
title Solubility of CO2 in a Choline Chloride + Urea Eutectic Mixture
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