Journal
MOLECULAR SIMULATION
Volume 34, Issue 10-15, Pages 1311-1320Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/08927020802101734
Keywords
argon clathrate hydrates; multiple occupancy; Monte Carlo; gas hydrates
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A series of grand canonical Monte Carlo simulations are performed to investigate the argon uptake inside sII and sH argon hydrates at 274K and pressures up to 700MPa. Our results indicate that the small cavities of the sII argon hydrate, as well as the small and medium cavities of the sH hydrate are singly occupied without the observation of any multiple occupancy. On the other hand, the large cavities of the sII hydrate are found to be doubly occupied, and the large cavities of the sH hydrate are found to be filled with up to five argon molecules. The results from our simulations are in very good agreement with the available experimental data concerning cage occupancies and with similar results from other types of molecular simulations.
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