Thermodynamic Properties of Ionic Semiclathrate Hydrate Formed with Tetrabutylammonium Propionate |
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| Authors: | Yuji Yamauchi Tatsuro Yamasaki Fuyuaki Endo Atsushi Hotta Ryo Ohmura |
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| Affiliation: | Keio University, Department of Mechanical Engineering, Yokohama, Japan |
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| Abstract: | 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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| Keywords: | Clathrate hydrate Dissociation heat Phase equilibria Tetrabutylammonium propionate |
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