Journal
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Volume 33, Issue 3, Pages 554-556Publisher
SOC CHEMICAL ENG JAPAN
DOI: 10.1252/jcej.33.554
Keywords
gas hydrate; cage-occupancy; raman spectroscopy; solid-fluid equilibria; thermodynamics
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The composition and cage-occupancy of guest species in a CO2-methane mixed hydrate system are investigated by use of Raman spectroscopy. A single crystal of mixed gas hydrate shows the homogeneous mole fraction in equilibrium. The CO2 molecule is entrapped into the M-cage prior to the S-cage comparing to methane. The relative cage-occupancy of CO2 and methane in the structure-I hydrate lattice is scarcely affected by pressure condition.
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