Production of methane hydrates in dispersed frozen aqueous solutions of polyvinyl alcohol

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Abstract


The results of studying of the methane hydrate formation kinetics were presented. Dispersed frozen polyvinyl alcohol (PVA) solutions were used to form methane hydrate. The experiments were carried out in an unstirred reactor at the temperature near the ice melting point. Based on the obtained results it was found out that the water to hydrate transition time highly reduced (by several times) in the dispersed frozen PVA solutions than that in dispersed ice. It was established that the hydrate formation rate and the water to hydrate transition degree might be higher in the dispersed frozen PVA solutions than in aqueous solutions of surface-active agents and “dry water”.


About the authors

V. P. Mel’nikov

Institute of the Earth Cryosphere of the Tyumen Research Centre, Siberian branch of the Russian Academy of Sciences; Tyumen State University; Industrial University of Tyumen

Email: lpodenko@yandex.ru

Russian Federation, 86, Malygina str., Tyumen, 625026; 6, Volodarskogo str., Tyumen, 625003; 38, Volodarskogo str., Tyumen, 625000

Academician of the Russian Academy of Sciences

L. S. Podenko

Institute of the Earth Cryosphere of the Tyumen Research Centre, Siberian branch of the Russian Academy of Sciences; Tyumen State University

Author for correspondence.
Email: lpodenko@yandex.ru

Russian Federation, 86, Malygina str., Tyumen, 625026; 6, Volodarskogo str., Tyumen, 625003

A. O. Drachuk

Institute of the Earth Cryosphere of the Tyumen Research Centre, Siberian branch of the Russian Academy of Sciences; Tyumen State University

Email: lpodenko@yandex.ru

Russian Federation, 86, Malygina str., Tyumen, 625026; 6, Volodarskogo str., Tyumen, 625003

N. S. Molokitina

Institute of the Earth Cryosphere of the Tyumen Research Centre, Siberian branch of the Russian Academy of Sciences; Tyumen State University

Email: lpodenko@yandex.ru

Russian Federation, 86, Malygina str., Tyumen, 625026; 6, Volodarskogo str., Tyumen, 625003

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