Calibration and testing of a Tian-Calvet heat-flow calorimeter Enthalpies of fusion and heat capacities for ice and tetrahydrofuran hydrate in the range 85 to 270 K

Gas content of binary clathrate hydrates with promoters

“…͑16͒ is the accurate determination of thermodynamic properties ͑⌬h W 0 and ⌬Cp W ͒ of the THF hydrate. THF hydrate has been widely studied and some values [37][38][39][40][41][42][43][44][45][46] of its enthalpy of dissociation and melting temperature ͑at ambient pressure͒ are shown in Table I. In most cases, the formation of hydrate took place from a nonstoichiometric solution.…”

Enthalpies of dissociation of clathrate hydrates of carbon dioxide, nitrogen, (carbon dioxide+ nitrogen), and (carbon dioxide + nitrogen+ tetrahydrofuran)

“…Only a few studies on time-independent thermal properties have been reported. (1)(2)(3)(4)(5) The experimental difficulties in measuring thermal properties lie mainly in the analysis procedure of the hydrate composition. At hydrate-forming temperatures above the ice point, high-pressure conditions are required to prevent the hydrate from dissociating into water and gaseous guest molecules.…”

Observation of Frost Heave of THF Clathrate Hydrate on Porous Glass Powder

“…From the perspective of recent environmental and industrial concerns, the structures of various clathrate hydrates (Mak and McMullan 1965;Gough and Davidson 1971;Sloan 1990) and their thermal properties at equilibrium (Ross et al 1981;Leaist et al 1982;Handa et al 1984) have been clarified. Since the formation and dissociation of clathrate hydrate are greatly affected by the solute, the dependence of the solute on the phase equilibrium conditions has been investigated (de Roo et al 1983).…”