Formation of cyclopentane - methane hydrates in brine systems and characteristics of dissolved ions

doi:10.1016/j.apenergy.2016.10.035

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	Formation of cyclopentane - methane hydrates in brine systems and characteristics of dissolved ions
	Lv, Qiu-Nan; Li, Xiao-Sen1 ; Chen, Zhao-Yang
刊名	APPLIED ENERGY
	2016-12-15
卷号	184 页码:482-490
关键词	Cyclopentane-methane Hydrate Hot Brine Bubble Salinity Pxrd
DOI	10.1016/j.apenergy.2016.10.035
文献子类	Article
英文摘要	BaSed on the hot brine in situ seafloor prepared for marine NGHs exploitation, the formation of hydrates and the characteristics of dissolved ions were investigated for the cyclopentane (CP)-methane-NaCl solution (3.5%) system. Both the gas consumption and the solution salinity influenced by two factors - the flow rate of gas (Q(g)) and the mass fraction of CP (M-CP)-were discussed. On one hand, the gas consumption went up at a lower Mcp (3.950 wt%) while dropped down at a higher M-CP (8.340 or 18.775 wt%) with the increase of Q(g). Nevertheless, higher mass fraction of CP behaved more favorable for the gas consumption. On the other hand, there would be a similar trend that the salinity of remaining liquid increased firstly and then decreased with the reaction time at any fixed Q(g) and M-CP, which might be attributed to the adsorption of Na+ and Cl- on the surface of hydrate. Furthermore, PXRD analysis of the hydrate was conducted to confirm this explanation. And it was confirmed that the ion of Na+ or Cl- did not play any role in the construction of hydrate cages. Meanwhile, CP was enclosed in large cavities (51264s) while CH4 was mainly enclosed in the small cavities (512). (C) 2016 Elsevier Ltd. All rights reserved.
WOS关键词	CARBON-DIOXIDE CAPTURE ; GAS HYDRATE ; PHASE-EQUILIBRIUM ; DISSOCIATION ENTHALPIES ; THERMAL-STIMULATION ; FORMATION KINETICS ; CLATHRATE PROCESS ; BUBBLE-COLUMN ; POROUS-MEDIA ; REACTOR
语种	英语
WOS记录号	WOS:000389785200040
资助机构	National Science Fund for Distinguished Young Scholars of China(51225603) ; National Natural Science Foundation of China(51506203 ; International S&T Cooperation Program of China(2015DFA61790) ; 51376183)
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/13994]
专题	中国科学院广州能源研究所天然气水合物开采技术与综合利用实验室
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Guangdong, Peoples R China 3.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Lv, Qiu-Nan,Li, Xiao-Sen,Chen, Zhao-Yang. Formation of cyclopentane - methane hydrates in brine systems and characteristics of dissolved ions[J]. APPLIED ENERGY,2016,184:482-490.
APA	Lv, Qiu-Nan,Li, Xiao-Sen,&Chen, Zhao-Yang.(2016).Formation of cyclopentane - methane hydrates in brine systems and characteristics of dissolved ions.APPLIED ENERGY,184,482-490.
MLA	Lv, Qiu-Nan,et al."Formation of cyclopentane - methane hydrates in brine systems and characteristics of dissolved ions".APPLIED ENERGY 184(2016):482-490.