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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
刊名	fluid phase equilibria
	2016-04-15
卷号	413页码:110-115
关键词	Methane hydrate Marine sediments Equilibrium decomposition condition
英文摘要	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.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	thermodynamics ; chemistry, physical ; engineering, chemical
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记录号	WOS:000371554100018
内容类型	期刊论文
源URL	[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
推荐引用方式 GB/T 7714	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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