Decomposition conditions of methane hydrate in marine sediments from South China Sea

doi:10.1016/j.fluid.2015.12.004

GIEC OpenIR > 中国科学院广州能源研究所

	Decomposition conditions of methane hydrate in marine sediments from South China Sea
	Zhang, Yu1,2 ; Li, Xiao-Sen1,2 ; Wang, Yi 1,2; Chen, Zhao-Yang 1,2; 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
DOI	10.1016/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：31[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
第一作者单位	中国科学院广州能源研究所
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.