Solubility of CO2 in a choline chloride plus urea eutectic mixture

被引：317
|
作者：
Li, Xiaoyong [1 ,2 ]
Hou, Minqiang [2 ]
Han, Buxing [2 ]
Wang, Xiaoling [1 ]
Zou, Lizhuang [1 ]
机构：
[1] China Univ Mining & Technol, Sch Chem & Environm Engn, Beijing 100083, Peoples R China
[2] Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China
来源：
JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2008年 / 53卷 / 02期
关键词：
D O I：
10.1021/je700638u
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The solubility of CO(2) 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 CO(2) in the mixtures increased with increasing pressure, and the solubility is more sensitive to pressure in the low-pressure range. The solubility of CO(2) in the mixtures decreased with increasing temperature at all the pressures. The enthalpy of solution is negative at all conditions.
引用
收藏
页码：548 / 550
页数：3
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