Phase Equilibrium and Dissociation Enthalpies for Cyclopentane plus Methane Hydrates in NaCl Aqueous Solutions

CORC > 广州能源研究所 > 中国科学院广州能源研究所 > 中国科学院广州能源研究所

	Phase Equilibrium and Dissociation Enthalpies for Cyclopentane plus Methane Hydrates in NaCl Aqueous Solutions
	Chen, Zhao-Yang 1; Li, Qing-Ping 2; Yan, Zhong-Yuan 1; Yan, Ke-Feng1 ; Zeng, Zhi-Yong 1; Li, Xiao-Sen1
刊名	journal of chemical and engineering data
	2010-10-01
卷号	55 期号:10 页码:4444-4449
关键词	CARBON-DIOXIDE GAS-PRODUCTION
ISSN号	0021-9568
通讯作者	lixs@ms.giec.ac.cn
产权排序	[chen, zhao-yang; yan, zhong-yuan; yan, ke-feng; zeng, zhi-yong; li, xiao-sen] chinese acad sci, guangzhou inst energy convers, key lab renewable energy & gas hydrate, guangzhou 510640, peoples r china; [li, qing-ping] cnooc res ctr, technol res dept, beijing 100027, peoples r china
中文摘要	the phase equilibrium data of cyclopentane (cp) + methane hydrates in brine water with nacl mass fractions of w = 0.0.035, 0.070, and 0.100 were measured in the temperature range (284.4 in 301.3) k using a visual high-pressure phase equilibrium apparatus. the dissociation enthalpies of cp + methane hydrates in hot brine water were determined via the clausius-clapeyron equation based on these phase equilibrium data. the effect of help gas and salinity on the phase equilibrium of cp hydrate and cp + methane hydrates was studied, respectively. liquid cp forms hydrates with small-molecule help gas at a temperature region much higher than the quadruple point of pure cp hydrate. methane partially occupied the small cages of structure ii hydrate, which accelerates the nucleation and growth of cp + methane hydrates and increases the stability of the hydrates. the phase equilibrium pressure of cp + methane hydrates increases with the increase in temperature, and it increases linearly with the increase in nacl concentration in solutions. the higher the temperature, the more remarkable effect the temperature and salinity has on the phase equilibrium pressure. the dissociation enthalpy decreases with the increase in temperature and the nacl concentration.
英文摘要	the phase equilibrium data of cyclopentane (cp) + methane hydrates in brine water with nacl mass fractions of w = 0.0.035, 0.070, and 0.100 were measured in the temperature range (284.4 in 301.3) k using a visual high-pressure phase equilibrium apparatus. the dissociation enthalpies of cp + methane hydrates in hot brine water were determined via the clausius-clapeyron equation based on these phase equilibrium data. the effect of help gas and salinity on the phase equilibrium of cp hydrate and cp + methane hydrates was studied, respectively. liquid cp forms hydrates with small-molecule help gas at a temperature region much higher than the quadruple point of pure cp hydrate. methane partially occupied the small cages of structure ii hydrate, which accelerates the nucleation and growth of cp + methane hydrates and increases the stability of the hydrates. the phase equilibrium pressure of cp + methane hydrates increases with the increase in temperature, and it increases linearly with the increase in nacl concentration in solutions. the higher the temperature, the more remarkable effect the temperature and salinity has on the phase equilibrium pressure. the dissociation enthalpy decreases with the increase in temperature and the nacl concentration.
学科主题	chemistry ; engineering
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, multidisciplinary ; engineering, chemical
研究领域[WOS]	chemistry ; engineering
关键词[WOS]	carbon-dioxide ; gas-production
收录类别	SCI
资助信息	national natural science foundation of china [50874098, u0733003, 20773133]; guangdong province natural science foundation [07301638]; chinese academy of sciences [kgcx-yw-3x6]; science & technology program of guandong province [2009b050600006]
原文出处	https://dx.doi.org/10.1021/je100597e
语种	英语
WOS记录号	WOS:000282848400049
公开日期	2014-12-24
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/8485]
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 Renewable Energy & Gas Hydrate, Guangzhou 510640, Peoples R China 2.CNOOC Res Ctr, Technol Res Dept, Beijing 100027, Peoples R China
推荐引用方式 GB/T 7714	Chen, Zhao-Yang,Li, Qing-Ping,Yan, Zhong-Yuan,et al. Phase Equilibrium and Dissociation Enthalpies for Cyclopentane plus Methane Hydrates in NaCl Aqueous Solutions[J]. journal of chemical and engineering data,2010,55(10):4444-4449.
APA	Chen, Zhao-Yang,Li, Qing-Ping,Yan, Zhong-Yuan,Yan, Ke-Feng,Zeng, Zhi-Yong,&Li, Xiao-Sen.(2010).Phase Equilibrium and Dissociation Enthalpies for Cyclopentane plus Methane Hydrates in NaCl Aqueous Solutions.journal of chemical and engineering data,55(10),4444-4449.
MLA	Chen, Zhao-Yang,et al."Phase Equilibrium and Dissociation Enthalpies for Cyclopentane plus Methane Hydrates in NaCl Aqueous Solutions".journal of chemical and engineering data 55.10(2010):4444-4449.