Effect of Particle Size of Ice on Methane Hydrate Self-Preservation below Freezing Point
Online published: 2008-04-20
To study the impacts of the ice particle size on the self preservation of methane hydrate, the dissociation experiment of methane hydrates were carried out. It contains six different sizes of ice particles under two different temperatures, aiming at analyzing the impacts of the total release volume of methane and the dissociation rate on the self preservation time. The results show that the size of the ice particle had evident impacts on the dissociation of methane hydrates. The total release volume of methane and the dissociation rate were inversely proportional to the ice particle size, the smaller the ice particle size, the faster the dissociation rate. This feature was very remarkable at the beginning of the dissociation. And, the methane hydrate formed by the bigger size of ice particle had more effective self\|preservation.
Key words： Methane hydrate; Self preservation; Dissociation; Particle size.
ZHAN Jing, TUN Jing-Bai, JIANG Guan-Li . Effect of Particle Size of Ice on Methane Hydrate Self-Preservation below Freezing Point[J]. Natural Gas Geoscience, 2008 , 19(4) : 577 -580 . DOI: 10.11764/j.issn.1672-1926.2008.04.577
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