Equilibrium PT curve of methane hydrates in the presence of AlCl3

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	Equilibrium PT curve of methane hydrates in the presence of AlCl3
	Lei, HY ; Zheng, YH ; Wu, BX
	2003
发表期刊	CHINESE SCIENCE BULLETIN
卷号	48 期号:1 页码:53-56
摘要	Using an experimental transparent sapphire high-pressure cell, three-phase (methane hydrate + AlCl3 solution + methane) equilibrium conditions of methane hydrates in the aqueous solution containing AlCl3 have been investigated under conditions of temperature from 272.15 to 278.15 K and pressure from 4.040 to 8.382 MPa. It could be clearly verified that AlCl3 is of stronger inhibitive effect than that observed for other electrolytes, such as KCl, CaCl2, at the same mole fraction. The induction time of the methane hydrate formation becomes longer when the water activity decreases with the increase of ion charge numbers. Methane hydrates tend to crystallize more easily with higher concentration (AlCl3 concentration of 18%) than lower one (AlCl3 concentration of 10%) in the same electriclyte solution. An empirical exponential equation is presented to calculate the equilibrium temperature and pressure of methane hydrate stable occurrence, and to correlate the measured data for aqueous AlCl3 solution. The results shove that there was infinitely small discrepancy between the theoretical computed values and the data oberserved in actual experiments.
文章类型	Article
关键词	Methane Hydrate Phase Equilibrium Pt Curve Alcl3 Solution Inhibitive Effect
WOS标题词	Science & Technology
研究领域[WOS]	Science & Technology - Other Topics
关键词[WOS]	AQUEOUS-ELECTROLYTE SOLUTIONS ; CARBON-DIOXIDE ; HYDROGEN-SULFIDE ; ETHYLENE-GLYCOL ; PROPANE ; ETHANE ; MIXTURES ; WATER
收录类别	SCI
语种	英语
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000180522700011
引用统计	被引频次：4[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/344007/10471
专题	中国科学院广州能源研究所
作者单位	1.Chinese Acad Sci, Lanzhou Inst Geol, State Key Lab Gas Geochem, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510070, Peoples R China 3.Xiamen Univ, Coll Oceanog & Environm Sci, Xiamen 361005, Peoples R China
推荐引用方式 GB/T 7714	Lei, HY,Zheng, YH,Wu, BX. Equilibrium PT curve of methane hydrates in the presence of AlCl3[J]. CHINESE SCIENCE BULLETIN,2003,48(1):53-56.
APA	Lei, HY,Zheng, YH,&Wu, BX.(2003).Equilibrium PT curve of methane hydrates in the presence of AlCl3.CHINESE SCIENCE BULLETIN,48(1),53-56.
MLA	Lei, HY,et al."Equilibrium PT curve of methane hydrates in the presence of AlCl3".CHINESE SCIENCE BULLETIN 48.1(2003):53-56.