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Phase Equilibria and Dissociation Enthalpies of Methane Hydrate in Imidazolium Ionic Liquid Aqueous Solutions
Long, Zhen1; Zhou, Xuebing1,2; Shen, Xiaodong1; Li, Dongliang1; Liang, Deqing1
2015-11-25
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume54Issue:46Pages:11701-11708
AbstractThis paper reports the thermodynamic inhibition effect of seven ionic liquids (ILs) on methane hydrate formation. The isochoric multistep heating dissociation pressure search method is applied for experimentally determining the phase boundary between hydrate-liquid-vapor (H-L-V) phases and liquid-vapor (L-V) phases in the pressure and temperature ranges of 3.45-13.28 MPa and 274.3-287.6 K, respectively. All the studied IL aqueous solutions are used at a mass fraction of 0.1. A comparison of the thermodynamic inhibitory performance of various ILs is carried out and reveals the predominant role of the type of anion of ILs. Considering the difficulty in directly measuring the dissociation enthalpies, the values of Delta H of methane hydrate are also calculated using the Clausius-Clapeyron equation. It is found that the mean dissociation enthalpies of methane hydrate in the presence of the seven ILs vary from 59.05 to 60.81 kJ.mol(1), and are very close to that in pure water.
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/acs.iecr.5b03480
WOS Subject ExtendedEngineering
WOS KeywordDUAL FUNCTION INHIBITORS ; MINE VENTILATION AIR ; EQUATION-OF-STATE ; CARBON-DIOXIDE ; NATURAL-GAS ; HYDROGEN-SULFIDE ; CLATHRATE ; PERFORMANCE ; ENRICHMENT ; MIXTURES
Indexed BySCI
Language英语
WOS SubjectEngineering, Chemical
WOS IDWOS:000366005200018
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Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10922
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Long, Zhen,Zhou, Xuebing,Shen, Xiaodong,et al. Phase Equilibria and Dissociation Enthalpies of Methane Hydrate in Imidazolium Ionic Liquid Aqueous Solutions[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2015,54(46):11701-11708.
APA Long, Zhen,Zhou, Xuebing,Shen, Xiaodong,Li, Dongliang,&Liang, Deqing.(2015).Phase Equilibria and Dissociation Enthalpies of Methane Hydrate in Imidazolium Ionic Liquid Aqueous Solutions.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,54(46),11701-11708.
MLA Long, Zhen,et al."Phase Equilibria and Dissociation Enthalpies of Methane Hydrate in Imidazolium Ionic Liquid Aqueous Solutions".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 54.46(2015):11701-11708.
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