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Study on Dissociation Behaviors of Methane Hydrate in Porous Media Based on Experiments and Fractional Dimension Shrinking-Core Model
Li, Xiao-Sen1; Zhang, Yu
2011-07-06
发表期刊INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷号50期号:13页码:8263-8271
摘要The dissociation kinetics of methane hydrate in the silica gels as the porous media are studied when the temperatures are above the quadruple-phase (hydrate(H)-water(L(W))-ice(I)-vapor(V)) point temperatures. The dissociation experiments were carried out by depressurization in the temperature range of 269.15-278.15 K and the initial formation pressure range of 4.1-11.0 MPa. Four silica gels, with pore sizes of 9.03, 12.95, 17.96, and 33.2 nm (the particle size distribution is 0.105-0.15 mm) were used. The experimental results shows that the rate of methane released from the hydrate dissociation increases with the increase of the initial formation pressure, the decrease of the environmental temperature, and the increase of the pore size. The temperature in the hydrate crystallizer first immediately has an obvious drop in the process of the hydrate dissociation and then rises gradually to the environmental temperature after it reaches the lowest temperature point. Based on the fractal theory and the shrinking-core model, a fractional dimension shrinking-core model is established for the correlation and prediction of the dissociation kinetic behaviors of methane hydrate in the porous media above the corresponding quadruple-phase point temperatures. The results are in good agreement with the experimental data.
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1021/ie101787f
研究领域[WOS]Engineering
关键词[WOS]CARBON-DIOXIDE ; NATURAL-GAS ; INTRINSIC RATE ; DECOMPOSITION ; ENERGY ; SILICA ; ETHANE ; TEMPERATURES ; EQUILIBRIA ; PRESSURES
收录类别SCI
语种英语
WOS类目Engineering, Chemical
WOS记录号WOS:000292069000060
引用统计
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10349
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Peoples R China
2.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100083, Peoples R China
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Li, Xiao-Sen,Zhang, Yu. Study on Dissociation Behaviors of Methane Hydrate in Porous Media Based on Experiments and Fractional Dimension Shrinking-Core Model[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2011,50(13):8263-8271.
APA Li, Xiao-Sen,&Zhang, Yu.(2011).Study on Dissociation Behaviors of Methane Hydrate in Porous Media Based on Experiments and Fractional Dimension Shrinking-Core Model.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,50(13),8263-8271.
MLA Li, Xiao-Sen,et al."Study on Dissociation Behaviors of Methane Hydrate in Porous Media Based on Experiments and Fractional Dimension Shrinking-Core Model".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 50.13(2011):8263-8271.
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