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DOI	10.1038/s41598-017-08430-y
	Influence of temperature on methane hydrate formation
	Zhang, Peng; Wu, Qingbai; Mu, Cuicui
发表日期	2017
ISSN	2045-2322
卷号	7
英文摘要	During gas hydrate formation process, a phase transition of liquid water exists naturally, implying that temperature has an important influence on hydrate formation. In this study, methane hydrate was formed within the same media. The experimental system was kept at 1.45, 6.49, and 12.91 degrees C respectively, and then different pressurization modes were applied in steps. We proposed a new indicator, namely the slope of the gas flow rates against time (d.g/dt), to represent the intrinsic driving force for hydrate formation. The driving force was calculated as a fixed value at the different stages of formation, including initial nucleation/growth, secondary nucleation/growth, and decay. The amounts of gas consumed at each stage were also calculated. The results show that the driving force during each stage follows an inverse relation with temperature, whereas the amount of consumed gas is proportional to temperature. This opposite trend indicates that the influences of temperature on the specific formation processes and final amounts of gas contained in hydrate should be considered separately. Our results also suggest that the specific ambient temperature under which hydrate is formed should be taken into consideration, when explaining the formation of different configurations and saturations of gas hydrates in natural reservoirs.
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS关键词	GLOBAL CARBON-CYCLE ; GULF-OF-MEXICO ; GAS HYDRATE ; POROUS-MEDIA ; MARINE-SEDIMENTS ; DRIVING-FORCE ; LAKE BAIKAL ; NUCLEATION ; GROWTH ; ENERGY
WOS记录号	WOS:000407442500044
来源期刊	SCIENTIFIC REPORTS
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/240232
作者单位	[Zhang, Peng; Wu, Qingbai] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 73000, Gansu, Peoples R China; [Mu, Cuicui] Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Peng,Wu, Qingbai,Mu, Cuicui. Influence of temperature on methane hydrate formation[J]. 中国科学院西北生态环境资源研究院,2017,7.
APA	Zhang, Peng,Wu, Qingbai,&Mu, Cuicui.(2017).Influence of temperature on methane hydrate formation.SCIENTIFIC REPORTS,7.
MLA	Zhang, Peng,et al."Influence of temperature on methane hydrate formation".SCIENTIFIC REPORTS 7(2017).