Thermodynamic Properties of Ionic Semiclathrate Hydrate Formed with Tetrabutylammonium Propionate

被引：24
作者：
Yamauchi, Yuji [1 ]
Yamasaki, Tatsuro [1 ]
Endo, Fuyuaki [1 ]
Hotta, Atsushi [1 ]
Ohmura, Ryo [1 ]
机构：
[1] Keio Univ, Dept Mech Engn, Kohoku Ku, 3-14-1 Hiyoshi, Yokohama, Kanagawa 2238522, Japan
来源：
CHEMICAL ENGINEERING & TECHNOLOGY | 2017年 / 40卷 / 10期
关键词：
Clathrate hydrate; Dissociation heat; Phase equilibria; Tetrabutylammonium propionate; CLATHRATE HYDRATE; ORGANIC-COMPOUNDS; REFRIGERATION; BROMIDE; EQUILIBRIUM; SLURRIES; CHLORIDE; SYSTEMS; ANIONS;
D O I：
10.1002/ceat.201600459
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The phase equilibrium temperature and dissociation heat of tetrabutylammonium propionate (TBAPr) hydrate are reported. TBAPr hydrate is a type of ionic semiclathrate hydrates and also could potentially be used as thermal energy storage material. The temperature-composition phase diagram of the TBAPr hydrate was determined in a defined range of mass fractions. Considering the dissociation heat of differential scanning calorimetry (DSC) measurements, multiple peaks of heat flow were observed in the TBAPr-water system at the TBAPr mass fraction lower than 0.35, and there was a single peak at the mass fraction higher than 0.37.
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页码：1810 / 1816
页数：7
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