Solubility Properties and Spectral Characterization of Dilute SO2 in Binary Mixtures of Urea plus Ethylene Glycol

被引：8

作者：

Sun, Shaoyang ^{[1
]}

Niu, Yanxia ^{[1
,2
]}

Gao, Fei ^{[3
]}

Shen, Jun ^{[2
]}

Wei, Xionghui ^{[1
]}

机构：

[1] Peking Univ, Coll Chem & Mol Engn, Dept Appl Chem, Beijing 100871, Peoples R China

[2] Taiyuan Univ Technol, Coll Chem & Chem Engn, Taiyuan 030024, Peoples R China

[3] Tianjin Univ, Sch Chem Engn & Technol, Minist Educ, Key Lab Green Chem Technol, Tianjin 300072, Peoples R China

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2015年 / 60卷 / 01期

关键词：

LIQUID EQUILIBRIUM DATA; EXCESS MOLAR VOLUME; SULFUR-DIOXIDE; FLUE-GAS; 313.15; K; POLY(ETHYLENE GLYCOL); VISCOSITY DEVIATION; PHYSICAL SOLVENT; HIGH-PRESSURES; IONIC LIQUID;

D O I：

10.1021/je5009119

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Solubilities of SO2 in binary mixtures of urea and ethylene glycol were determined by gas-liquid equilibrium experiments at the temperatures from (298.15 to 318.15 K) and 122.7 kPa, with SO2 partial pressure in gas phase in the range of (0 to 130) Pa. Henrys law constants were calculated based on the solubility data. It indicated that the mixture with urea molality of 6.65 mol center dot kg(-1) has the most desirable capacity. More than 90 % SO2 can be regenerated by bubbling N-2 at 338.15 K. Density and viscosity data for the binary mixtures were also measured. In addition, UV, IR, and NMR experiments were conducted to investigate the interaction between ethylene glycol, urea, and SO2. The result demonstrated that SO2 can interact with the mixture by both the charge-transfer interaction between S (SO2)....N (urea) and the hydrogen bond between O (SO2)....H (ethylene glycol).

引用

页码：161 / 170

页数：10

共 41 条

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