Effects of additive mixtures (THF/SDS) on carbon dioxide hydrate formation and dissociation in porous media

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	Effects of additive mixtures (THF/SDS) on carbon dioxide hydrate formation and dissociation in porous media
	Yang, Mingjun 1; Song, Yongchen 1; Liu, Weiguo 1; Zhao, Jiafei 1; Ruan, Xuke 2; Jiang, Lanlan 1; Li, Qingping 3
刊名	chemical engineering science
	2013-03-07
卷号	90 页码:69-76
关键词	CO2 hydrate Environment Kinetics Multiphase flow Phase equilibria Porous media
英文摘要	the characteristics and stability conditions of carbon dioxide (co2) hydrate formation are crucial for hydrate-based co2 capture and storage. the effects of a mixture of additives (thf/sds) on co2 hydrate formation and dissociation in porous media have been investigated experimentally using a graphic method. the gibbs phase rule is used to analyze the experimental p-t curves. hydrate formation processes can be divided into two cases, depending on the co2 initial state. the experimental results showed that 1000 mg/l sds is the best additive and concentration for co2 hydrate formation among those studied in this investigation due to its shorter induction time and resultantly higher hydrate saturation than those of other concentrations. the presence of 3 mol% thf dramatically decreased the hydrate phase equilibrium pressure. the hydrate equilibrium temperature is 291.55 k in the aqueous phase with 3 mol% thf and 0 mg/l sds, which is the highest equilibrium temperature at 3.04 mpa observed in this investigation. the experimental results also showed that "pseudo-retrograde" behavior exists at nearly 3.00 mpa with all sds concentrations. an improved model is used to predict the phase equilibrium conditions for co2 hydrates in glass beads in the presence of thf, in which the mechanical equilibrium of force between the interfaces in a hydrate-liquid-vapor system is considered. (c) 2012 elsevier ltd. all rights reserved.
WOS标题词	science & technology ; technology
类目[WOS]	engineering, chemical
研究领域[WOS]	engineering
关键词[WOS]	phase-equilibrium measurements ; methane hydrate ; storage capacity ; co2 ; gas ; systems ; tetrahydrofuran ; surfactant ; pressures ; bromide
收录类别	SCI
语种	英语
WOS记录号	WOS:000314823000009
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/9126]
专题	中国科学院广州能源研究所
作者单位	1.Dalian Univ Technol, Minist Educ, Key Lab Ocean Energy Utilizat & Energy Conservat, Dalian 116024, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China 3.China Natl Offshore Oil Corp Res Ctr, Beijing 100027, Peoples R China
推荐引用方式 GB/T 7714	Yang, Mingjun,Song, Yongchen,Liu, Weiguo,et al. Effects of additive mixtures (THF/SDS) on carbon dioxide hydrate formation and dissociation in porous media[J]. chemical engineering science,2013,90:69-76.
APA	Yang, Mingjun.,Song, Yongchen.,Liu, Weiguo.,Zhao, Jiafei.,Ruan, Xuke.,...&Li, Qingping.(2013).Effects of additive mixtures (THF/SDS) on carbon dioxide hydrate formation and dissociation in porous media.chemical engineering science,90,69-76.
MLA	Yang, Mingjun,et al."Effects of additive mixtures (THF/SDS) on carbon dioxide hydrate formation and dissociation in porous media".chemical engineering science 90(2013):69-76.