Thermodynamic and Raman spectroscopic studies on hydrogen+tetra-n-butyl ammonium fluoride semi-clathrate hydrates
作者： Jun Sakamoto , Shunsuke Hashimoto , Takaaki Tsuda , Takeshi Sugahara , Yoshiro Inoue
DOI: 10.1016/J.CES.2008.08.026
关键词:
摘要: Thermodynamic stability and hydrogen occupancy on the hydrogen+tetra-n-butyl ammonium fluoride semi-clathrate hydrate have been investigated by means of phase equilibrium (pressure–temperature) measurements Raman spectroscopic analyses for two mole fractions, 0.018 0.034 (stoichiometric cubic structure) tetra-n-butyl aqueous solutions. In case higher concentration (0.034), boundary curve locates at about 23 K temperature than that hydrogen+tetrahydrofuran mixed gas hydrate. The storage capacity in structure is smaller prepared from lower (0.018) solution, spectra behavior reveal changed to a different one 9 MPa 299.2 K. new can entrap larger amount one. obtained solution fraction shifted slightly low-temperature or high-pressure side (0.034).
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