A study of specific features of the growth, composition, and content of natural gas hydrates formed in a water-in-oil emulsion demonstrated that the process in which hydrates are formed in a water-oil emulsion occurs in stages and depends on the saturation of hydrate growth zones with the hydrate-forming gas via diffusion of natural-gas components across the oil phase. Hydrates enriched in methane are formed in water-oil emulsions, compared with the hydrates grown from distilled water, which is accounted for by the difference in solubility between natural-gas components in oil and water, and also by the presence of a surfactant layer on the surface of emulsified water drops. With increasing fraction of water in an emulsion, the content of hydrates decreases, and the mass of a hydrate being formed is independent of the composition of the water-oil emulsion.
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Original Russian Text © V.V. Koryakina, I.K. Ivanova, M.E. Semenov, I.I. Rozhin, A.F. Fedorova, E.Yu. Shits, 2017, published in Zhurnal Prikladnoi Khimii, 2017, Vol. 90, No. 8, pp. 1026−1032.
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Koryakina, V.V., Ivanova, I.K., Semenov, M.E. et al. Specific features of the growth, composition, and content of natural gas hydrates synthesized in inverted oil emulsions. Russ J Appl Chem 90, 1258–1263 (2017). https://doi.org/10.1134/S1070427217080110