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Sergei Ya. Misyura
Sergei Ya. Misyura
Ph.D.
Senior Researcher
Kutateladze Institute of Thermophysics of the Siberian Branch of the RAS
Senior Researcher, Ph.D.
Kutateladze Institute of Thermophysics of the Siberian Branch of the RAS
Novosibirsk
Russia
4319
Total cited
46
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Co-authors

Articles

Article
Geotechnical Engineering and Engineering Geology
  • Date submitted
    2024-09-20
  • Date accepted
    2026-03-04
  • Online publication date
    2026-04-21

Methane hydrate dissociation at reduced pressure in the presence of biosurfactants with subsequent injection of carbon dioxide

Article preview

The global volume of natural gas trapped in hydrate deposits far exceeds the conventionally recoverable hydrocarbon reserves. However, the high costs associated with hydrate production, transportation, and storage currently hinder the large-scale implementation of hydrate-based technologies. A promising way to reduce these costs is through phase transition technology, which involves СН4 hydrate depressurization in the presence of biosurfactants, followed by СО2 formation. This approach also enables carbon dioxide sequestration, addressing the corresponding environmental concerns. Biosurfactants, which are naturally present in many hydrate reservoirs, enhance hydrate growth and accelerate СН4-СО2 exchange. The newly developed method of producing highly porous ice using biosurfactants, presented in this research, provides higher formation rates, substantially reducing the time required for the process. Most importantly, this technique eliminates the risk of mixed hydrate formation – a major limitation, which hindered the replacement efficiency. As a result, the proposed sequential phase transition method decreases the total time of CO2 hydrate synthesis by two to three orders of magnitude compared to direct СН4-СО2 replacement. The method is particularly effective for permafrost regions and offers a more environmentally friendly approach to developing gas hydrate deposits by minimizing methane emissions while enabling CO2 storage.

How to cite: Shlegel N.E., Podgornaya E.R., Misyura S.Y., Morozov V.S., Strizhak P.A. Methane hydrate dissociation at reduced pressure in the presence of biosurfactants with subsequent injection of carbon dioxide // Journal of Mining Institute. 2026. Vol. 278. p. 125-135.