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

doi:10.1016/j.fluid.2016.06.020

GIEC OpenIR > 中国科学院广州能源研究所

	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
	2016-10-15
发表期刊	FLUID PHASE EQUILIBRIA
卷号	425 页码:305-311
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.
文章类型	Article
关键词	Phase Equilibrium Hydrate Dissociation Enthalpy Raman Spectroscopy
WOS标题词	Science & Technology ; Physical Sciences ; Technology
DOI	10.1016/j.fluid.2016.06.020
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
项目资助者	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) ; PetroChina - Chinese Academy of Sciences High-Level Strategic Alliance Program(2015A-4813-2) ; CNOOC Research Institute Entrusted Project(CRI2015RC-PS0053OCN) ; 51376183)
WOS类目	Thermodynamics ; Chemistry, Physical ; Engineering, Chemical
WOS记录号	WOS:000382341700040
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	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
第一作者单位	中国科学院广州能源研究所
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.