Clathrate hydrate dissociation conditions and structure of the methane plus cyclopentane plus trimethylene sulfide hydrate in NaCl aqueous solution

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	Clathrate hydrate dissociation conditions and structure of the methane plus cyclopentane plus trimethylene sulfide hydrate in NaCl aqueous solution
	Lv, Qiunan1,2,3 ; Li, Lu 1,2,3,4; Li, Xiaosen1,2,3 ; Chen, Zhaoyang 1,2,3
刊名	fluid phase equilibria
	2016-10-15
卷号	425 页码:305-311
关键词	Phase equilibrium Hydrate Dissociation enthalpy Raman spectroscopy
英文摘要	in present work, the phase equilibrium of methane + cyclopentane (cp) + timethylene sulfide (tms) hydrate were measured in naci solution at the temperature range from 286.42 to 303.77 k and the pressure varying from 1.16 to 12.49 mpa. the experimental data were measured with an isochoric t-cycle method. the phase equilibrium pressure of organic compounds (vcp:v-tms = 4:1) + ch4 hydrate increases with the temperature and the nacl concentration. when the temperature was higher, the effect of temperature and nacl concentration on the phase equilibrium pressure was more remarkable. the dissociation enthalpies of organic compounds (vcp:v-tms = 4:1) + ch4 hydrate in 3.5, 5.0, 7.0, 10% (mass fraction) nacl solution were calculated through the clausiusclapeyron equation based on the phase equilibrium data. the dissociation enthalpy decreases with the increase of either the temperature or the nacl concentration. the crystal structure of organic compounds (vcp:v-tms = 4:1) + ch4 hydrate was determined by using raman spectroscopy. methane was present only in the small sii cavity, cyclopentane and timethylene sulfide were all in the large sii cavities. (c) 2016 elsevier b.v. all rights reserved.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	thermodynamics ; chemistry, physical ; engineering, chemical
研究领域[WOS]	thermodynamics ; chemistry ; engineering
关键词[WOS]	butyl ammonium bromide ; gas hydrate ; phase-equilibrium ; thermodynamic stability ; water-systems ; enthalpies ; hydrogen ; sea ; depressurization ; prediction
收录类别	SCI
语种	英语
WOS记录号	WOS:000382341700040
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/11842]
专题	中国科学院广州能源研究所
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China 2.Guangdong Key Lab New & Renewable Energy Res Dev, Guangzhou 510640, Guangdong, Peoples R China 3.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Guangdong, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Lv, Qiunan,Li, Lu,Li, Xiaosen,et al. Clathrate hydrate dissociation conditions and structure of the methane plus cyclopentane plus trimethylene sulfide hydrate in NaCl aqueous solution[J]. fluid phase equilibria,2016,425:305-311.
APA	Lv, Qiunan,Li, Lu,Li, Xiaosen,&Chen, Zhaoyang.(2016).Clathrate hydrate dissociation conditions and structure of the methane plus cyclopentane plus trimethylene sulfide hydrate in NaCl aqueous solution.fluid phase equilibria,425,305-311.
MLA	Lv, Qiunan,et al."Clathrate hydrate dissociation conditions and structure of the methane plus cyclopentane plus trimethylene sulfide hydrate in NaCl aqueous solution".fluid phase equilibria 425(2016):305-311.