Natural gas hydrates with locally different cage occupancies and hydration numbers in Lake Baikal

Masato Kida, Akihiro Hachikubo, Hirotoshi Sakagami, Hirotsugu Minami, Alexey Krylov, Satoshi Yamashita, Nobuo Takahashi, Hitoshi Shoji, Oleg Khlystov, Jeffrey Poort, Hideo Narita

Результат исследований: Научные публикации в периодических изданияхстатья

27 Цитирования (Scopus)

Аннотация

[1] Knowledge of cage occupancies and hydration numbers (n) of naturally occurring gas hydrate in a local environment is important for the improvement in global estimates of hydrate-bound natural gas. We report on local differences in cage occupancies and hydration number of gas hydrates from Lake Baikal. Natural gas hydrates of both structures I and II (sI and sII) and ranging in composition from pure CH4 to mixed gas hydrate containing up to 15% C2H6 are compared. The average hydration numbers are n = 6.1 for the sI CH4 hydrates recovered from the Malenky and Bolshoy mud volcanoes, n = 6.2 for the sI hydrates, containing 3-4% C2 H 6 recovered from the K-2 mud volcano, and n = 6.9 for the sII hydrate containing about 15% C2H6 recovered from the K-2 mud volcano. The differences in hydration number are due to the differences in the small cage occupancy of CH4 among the samples studied.

Язык оригиналаанглийский
Номер статьиQ05003
ЖурналGeochemistry, Geophysics, Geosystems
Том10
Номер выпуска5
DOI
СостояниеОпубликовано - 1 мая 2009

Предметные области Scopus

  • Геофизика
  • Геохимия и петрология

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  • Цитировать

    Kida, M., Hachikubo, A., Sakagami, H., Minami, H., Krylov, A., Yamashita, S., Takahashi, N., Shoji, H., Khlystov, O., Poort, J., & Narita, H. (2009). Natural gas hydrates with locally different cage occupancies and hydration numbers in Lake Baikal. Geochemistry, Geophysics, Geosystems, 10(5), [Q05003]. https://doi.org/10.1029/2009GC002473