Kinetic Behaviors of Methane Hydrate Formation in Porous Media in Different Hydrate Deposits

The kinetic characteristics of methane hydrate formation in porous media are investigated in three experimental apparatus with different scales. A total of 18 experimental formation runs are implemented in these apparatus (6 runs in each device). The kinetic model proposed by Li et al. [Chem. Eng. S...

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Bibliographic Details
Published in:Industrial & Engineering Chemistry Research
Main Authors: Li, Bo, Li, Xiao-Sen, Li, Gang, Wang, Yi, Feng, Jing-Chun
Format: Article in Journal/Newspaper
Language:English
Published: 2014
Subjects:
Science & Technology
Technology
Engineering
SINGLE HORIZONTAL WELL
COAL-MINE GAS
PUFF METHOD
NUMERICAL-SIMULATION
QILIAN MOUNTAIN
CRYSTALLIZATION
SEPARATION
DEPRESSURIZATION
DIOXIDE
GROWTH
Chemical
Methane hydrate
Online Access:http://ir.giec.ac.cn/handle/344007/10667
https://doi.org/10.1021/ie500580y
Description
Summary:The kinetic characteristics of methane hydrate formation in porous media are investigated in three experimental apparatus with different scales. A total of 18 experimental formation runs are implemented in these apparatus (6 runs in each device). The kinetic model proposed by Li et al. [Chem. Eng. Sci., 2014, 105, 220-230] is employed to simulate these hydrate formation processes, and the applicability of this model in different hydrate deposits is confirmed by comparing the experimental data with the numerical prediction. It is found that the reaction rate constant k decreases sharply with the increase of the size of the apparatus, which indicates that the hydrate formation rate is inversely proportional to the scale of the hydrate deposit. In addition, both the initial phase saturations and the properties of the porous media show extraordinary effects on the formation kinetics of methane hydrate.

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