Formation and Decomposition of Methane Hydrate in Coal Научная публикация
Журнал |
Fuel
ISSN: 0016-2361 , E-ISSN: 1873-7153 |
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Вых. Данные | Год: 2016, Том: 166, Страницы: 188-195 Страниц : 8 DOI: 10.1016/j.fuel.2015.10.123 | ||||||||||||
Ключевые слова | Coal, Gas hydrate, Methane, Water adsorption | ||||||||||||
Авторы |
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Организации |
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Информация о финансировании (1)
1 | Российский фонд фундаментальных исследований | 15-05-02240 |
Реферат:
The formation of methane hydrate from water adsorbed on the surface of natural bituminous coal has been studied. The state of the adsorbed water has been examined with DSC and NMR techniques. The isotherm of adsorption of water on coal has been studied. The experiments have shown that the water adsorbed on the coal studied is bound and non-freezing, i.e., no ice formation and melting occurs on cooling and heating of the coal samples containing the adsorbed water. This water undergoes a glass-like transition. The adsorbed water can be divided into strongly bound and weakly bound, in accordance to known models of water sorption by coals. Cooling and heating of containing adsorbed water coal samples under methane pressure results in expressed pressure anomalies corresponding to the formation and decomposition of the methane hydrate. Thus, the non-freezing water is capable of forming gas hydrate. It has been demonstrated that the hydrate is formed only from the weakly bound water. The equilibrium pressure and temperature parameters of this hydrate are identical to those of the bulk hydrate. Thus, it has been shown that at proper pressure and temperature gas hydrates can be formed in coals even in absence of free water. The results obtained make possible to suggest that the hydrophilic areas of the coal surface are active sites of gas hydrate nucleation.
Библиографическая ссылка:
Smirnov V.G.
, Manakov A.Y.
, Ukraintseva E.A.
, Villevalʹd G.V.
, Karpova T.D.
, Dyrdin V.V.
, Lyrshhikov S.Y.
, Ismagilov Z.R.
, Terekhova I.S.
, Ogienko A.G.
Formation and Decomposition of Methane Hydrate in Coal
Fuel. 2016. V.166. P.188-195. DOI: 10.1016/j.fuel.2015.10.123 WOS Scopus РИНЦ
Formation and Decomposition of Methane Hydrate in Coal
Fuel. 2016. V.166. P.188-195. DOI: 10.1016/j.fuel.2015.10.123 WOS Scopus РИНЦ
Даты:
Поступила в редакцию: | 16 мая 2015 г. |
Принята к публикации: | 29 окт. 2015 г. |
Опубликована online: | 3 нояб. 2015 г. |
Опубликована в печати: | 15 февр. 2016 г. |
Идентификаторы БД:
Web of science | WOS:000365627700024 |
Scopus | 2-s2.0-84946606987 |
РИНЦ | 24934799 |
Chemical Abstracts | 2015:1763708 |
Chemical Abstracts (print) | 164:9703 |
OpenAlex | W1901525098 |