气候变化领域集成服务门户(CCPortal): Characteristics of Methane Hydrate Formation in Artificial and Natural Media

CCPortal

DOI	10.3390/en6031233
	Characteristics of Methane Hydrate Formation in Artificial and Natural Media
	Zhang, Peng; Wu, Qingbai; Yang, Yuzhong
发表日期	2013
EISSN	1996-1073
起始页码	1233
结束页码	1249
卷号	6 期号:3
英文摘要	The formation of methane hydrate in two significantly different media was investigated, using silica gel as an artificial medium and loess as a natural medium. The methane hydrate formation was observed through the depletion of water in the matrix, measured via the matrix potential and the relationship between the matrix potential and the water content was determined using established equations. The velocity of methane hydrate nucleation slowed over the course of the reaction, as it relied on water transfer to the hydrate surfaces with lower Gibbs free energy after nucleation. Significant differences in the reactions in the two types of media arose from differences in the water retention capacity and lithology of media due to the internal surface area and pore size distributions. Compared with methane hydrate formation in silica gel, the reaction in loess was much slower and formed far less methane hydrate. The results of this study will advance the understanding of how the properties of the environment affect the formation of gas hydrates in nature.
英文关键词	water conversion; matrix potential; methane hydrate; porous media
语种	英语
WOS研究方向	Energy & Fuels
WOS类目	Energy & Fuels
WOS关键词	GAS HYDRATE ; PHASE-EQUILIBRIA ; PORE-SIZE ; CARBON
WOS记录号	WOS:000316604500004
来源期刊	ENERGIES
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/240220
作者单位	[Zhang, Peng; Wu, Qingbai; Yang, Yuzhong] Chinese Acad Sci, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Peng,Wu, Qingbai,Yang, Yuzhong. Characteristics of Methane Hydrate Formation in Artificial and Natural Media[J]. 中国科学院西北生态环境资源研究院,2013,6(3).
APA	Zhang, Peng,Wu, Qingbai,&Yang, Yuzhong.(2013).Characteristics of Methane Hydrate Formation in Artificial and Natural Media.ENERGIES,6(3).
MLA	Zhang, Peng,et al."Characteristics of Methane Hydrate Formation in Artificial and Natural Media".ENERGIES 6.3(2013).