Acta Chimica Sinica ›› 2011, Vol. 69 ›› Issue (19): 2221-2227. Previous Articles     Next Articles

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  1. (中国科学院广州能源研究所 中国科学院可再生能源与天然气水合物重点实验室 广州 510640)
    (中国科学院广州天然气水合物研究中心 广州 510640)
  • 投稿日期:2011-02-25 修回日期:2011-04-25 发布日期:2011-05-20
  • 通讯作者: 李小森

Experimental Study on Formation Behavior of Methane Hydrate in Porous Media

ZHANG Yu, WU Hui-Jie, LI Xiao-Sen, LI Gang, CHEN Chao-Yang, ZENG Zhi-Yong   

  1. (Guangzhou Center for Gas Hydrate Research, Chinese Academy of Sciences, Guangzhou 510640)
    (Key Laboratory of Renewable Energy and Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640)
  • Received:2011-02-25 Revised:2011-04-25 Published:2011-05-20

The formation behaviors of methane hydrate in the porous media were studied. The silica gel with the mean pore diameters of 9.03, 12.95, 17.96 and 33.20 nm and three particle diameters of 0.105~0.150 mm, 0.150~0.200 mm and 0.300~0.450 mm was used as the porous media for the experiments, respectively. The formation experiments of methane hydrate in the porous media were carried out at the temperature range of 274.15~278.15 K and the initial formation pressure range of 7.4~11.0 MPa. The experiment results indicated that the formation rate of methane hydrate increases with the increase of the initial formation pressure, the decrease of the bath temperature, the decrease of the particle range and the increase of the mean pore diameter.

Key words: methane hydrate, formation behavior, porous media