Publication Date:
2017-06-13
Description:
This paper reports the phase equilibrium temperature and dissociation heat of tetrabutylammonium propionate (TBAPr) hydrate. TBAPr hydrate is a type of ionic semiclathrate hydrates and also could potentially be used as thermal energy storage materials. The temperature – composition phase diagram of the TBAPr hydrate was determined in the mass fraction from 0.05 to 0.43. The highest equilibrium temperature of TBAPr hydrate was 17.5 °C in the mass fraction range from 0.33 to 0.38. On the dissociation heat of DSC measurements, multiple peaks of heat flow were observed on 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. The largest dissociation heat was 203 kJ/kg at the mass fraction 0.38.
Print ISSN:
0930-7516
Electronic ISSN:
1521-4125
Topics:
Chemistry and Pharmacology
,
Process Engineering, Biotechnology, Nutrition Technology
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