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Decomposition conditions of methane hydrate in marine sediments from South China Sea
Zhang, Yu1,2; Li, Xiao-Sen1,2; Wang, Yi1,2; Chen, Zhao-Yang1,2; Yan, Ke-Feng1,2
2016-04-15
发表期刊FLUID PHASE EQUILIBRIA
卷号413页码:110-115
摘要Decomposition conditions of methane hydrate in marine sediments from South China Sea were measured using multi-step decomposition method. Four different samples of the marine sediments were used in the experiments. The pore distribution, the surface area, particle size and the surface texture were measured and observed. The experimental results indicated that the final decomposition temperatures are shifted lower than those for bulk hydrates at the same pressure for different marine sediments and different water saturations. Temperature shifts are more negative for smaller initial water saturation. The surface textures and pore of the sediments both affect the equilibrium condition of methane hydrate. Using the Clausius-Clapeyron equation, the enthalpy of hydrate dissociation in marine sediments was calculated. It was found that the enthalpy of hydrate dissociation in marine sediments with lower water saturation is higher than that at the bulk state. (C) 2015 Elsevier B.V. All rights reserved.
文章类型Article
关键词Methane Hydrate Marine Sediments Equilibrium Decomposition Condition
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/j.fluid.2015.12.004
研究领域[WOS]Thermodynamics ; Chemistry ; Engineering
关键词[WOS]POROUS-MEDIA ; DISSOCIATION ENTHALPY ; CARBON-DIOXIDE ; GUEST SIZE ; PORE-SIZE ; EQUILIBRIA ; SILICA ; TEMPERATURES ; PRESSURES ; ENERGY
收录类别SCI
语种英语
WOS类目Thermodynamics ; Chemistry, Physical ; Engineering, Chemical
WOS记录号WOS:000371554100018
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/11130
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China
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Zhang, Yu,Li, Xiao-Sen,Wang, Yi,et al. Decomposition conditions of methane hydrate in marine sediments from South China Sea[J]. FLUID PHASE EQUILIBRIA,2016,413:110-115.
APA Zhang, Yu,Li, Xiao-Sen,Wang, Yi,Chen, Zhao-Yang,&Yan, Ke-Feng.(2016).Decomposition conditions of methane hydrate in marine sediments from South China Sea.FLUID PHASE EQUILIBRIA,413,110-115.
MLA Zhang, Yu,et al."Decomposition conditions of methane hydrate in marine sediments from South China Sea".FLUID PHASE EQUILIBRIA 413(2016):110-115.
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