Phase transitions in mixed gas hydrates: Experimental observations versus calculated data

Article Abstract:

The phase behavior of multicomponent gas hydrate systems formed from primarily methane-propane and methane-ethane-propane gas mixtures were investigated. These systems showed interesting behavior at P-T conditions close to the decomposition line of pure methane hydrate during which the formation and decomposition of hydrate crystals could be seen and the morphology of the system changed from larger euhedral crystals to a fine crystal foamy mass.

Science & research, Research, Phase transformations (Statistical physics), Phase transitions (Physics)

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Heterogeneous crystal growth of methane hydrate on its sII [001] crystallographic face

Article Abstract:

The heterogeneous crystal growth of methane hydrate sII from supersaturated aqueous methane solutions is studied by using molecular simulation. It is shown that the growth of a [001] face of sII hydrate has produced a sI crystalline structure, thus confirming that cross-nucleation of methane hydrate structures is possible.

Analysis, Technology application, Methane, Crystallography, Molecular dynamics

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