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Phase Equilibrium Conditions of Tetrabutyl Ammonium Nitrate + CO2, N-2, or CH4 Semiclathrate Hydrate Systems
Du, Jian-Wei1,2; Liang, De-Qing1; Li, Dong-Liang1; Chen, Yu-Feng1,2; Li, Xin-Jun1
2011-10-19
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume50Issue:20Pages:11720-11723
AbstractPhase equilibrium conditions for semiclathrate hydrates formed from tetrabutyl ammonium nitrate (TBANO(3)) + CO2, N-2, or CH4 + water system were investigated under high-pressure in a "full view" sapphire cell. An isochoric equilibrium step-heating pressure-search method was used for the determination of the hydrate phase transition points through plotting the points of intersection of hydrate-liquid vapor (H-L-V) to liquid vapor (L-V) experimentally. All the experimental equilibrium data were obtained in the presence of TBANO3 solution at ammonium salt mass fraction of 0.3941 corresponding to a stoichiometric composition for TBANO(3)center dot 26H(2)O. Measurements were performed for TBANO(3) + CO2 + water, TBANO3 + N-2 + water, and TBANO(3) + CH4 + water system in the temperature range of (281.5 to 290.9) K and in the pressure range of (1.19 to 32.89) MPa. The three-phase equilibrium lines of TBANO(3) + N-2 and TBANO(3) + CO2 semiclathrate hydrate shifted the hydrate stability region to lower pressure and higher temperature than that of the pure N-2 and CO2 hydrate, respectively. However, the addition of TBANO(3) made TBANO(3) + CH4 semidathrate hydrate phase equilibrium curve at higher pressure than the pure CH4 hydrate.
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/ie200380J
WOS Subject ExtendedEngineering
WOS KeywordN-BUTYL ; HYDROGEN STORAGE ; CARBON-DIOXIDE ; GAS HYDRATE ; NITROGEN ; BROMIDE ; METHANE ; SALTS ; CYCLOPENTANE ; STABILITY
Indexed BySCI
Language英语
WOS SubjectEngineering, Chemical
WOS IDWOS:000295667100032
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Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10421
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrate, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, China Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Du, Jian-Wei,Liang, De-Qing,Li, Dong-Liang,et al. Phase Equilibrium Conditions of Tetrabutyl Ammonium Nitrate + CO2, N-2, or CH4 Semiclathrate Hydrate Systems[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2011,50(20):11720-11723.
APA Du, Jian-Wei,Liang, De-Qing,Li, Dong-Liang,Chen, Yu-Feng,&Li, Xin-Jun.(2011).Phase Equilibrium Conditions of Tetrabutyl Ammonium Nitrate + CO2, N-2, or CH4 Semiclathrate Hydrate Systems.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,50(20),11720-11723.
MLA Du, Jian-Wei,et al."Phase Equilibrium Conditions of Tetrabutyl Ammonium Nitrate + CO2, N-2, or CH4 Semiclathrate Hydrate Systems".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 50.20(2011):11720-11723.
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