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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
2016-12-15
Source PublicationAPPLIED ENERGY
Volume184Pages:482-490
AbstractBaSed 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.
SubtypeArticle
KeywordCyclopentane-methane Hydrate Hot Brine Bubble Salinity Pxrd
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.apenergy.2016.10.035
WOS Subject ExtendedEnergy & Fuels ; Engineering
WOS KeywordCARBON-DIOXIDE CAPTURE ; GAS HYDRATE ; PHASE-EQUILIBRIUM ; DISSOCIATION ENTHALPIES ; THERMAL-STIMULATION ; FORMATION KINETICS ; CLATHRATE PROCESS ; BUBBLE-COLUMN ; POROUS-MEDIA ; REACTOR
Indexed BySCI
Language英语
Funding OrganizationNational 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)
WOS SubjectEnergy & Fuels ; Engineering, Chemical
WOS IDWOS:000389785200040
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/13994
Collection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
Affiliation1.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
Recommended Citation
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.
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