ICCAS OpenIR
A study of tri-phasic behavior of ionic liquid-methanol-CO2 systems at elevated pressures
Zhang, ZF; Wu, W; Liu, ZM; Han, BX; Gao, HX; Jiang, T
2004-05-07
Source PublicationPHYSICAL CHEMISTRY CHEMICAL PHYSICS
ISSN1463-9076
Volume6Issue:9Pages:2352-2357
AbstractThe phase behavior of CO2-methanol-1-n-butyl-3-methyl-imidazolium hexafluorophosphate ([bmim][PF6]) system under different conditions has been studied by a static method. The results demonstrate that at 40.0degreesC there can exist three phases (IL-rich phase, the methanol-rich phase, CO2-rich phase) in the pressure range from 6.95 to 8.21 MPa when the concentration of the IL is low. In the high IL concentration region, however, there is only one liquid phase in the entire pressure range. In the three-phase region, the difference of the concentrations of the IL in the two liquid phases becomes larger and larger with increasing pressure. The results also show that the three-phase region exists only in the temperature range from 35 to 44.5degreesC at 7.6 MPa. In the three-phase region IL concentration in the IL-rich phase decreases with increasing temperature, while that in the methanol-rich phase increases as temperature rises, and the difference of IL concentration in the two liquid phases is sensitive to temperature. On the basis of phase equilibrium data the distribution coefficients of [bmim][PF6] in the two liquid phases are calculated and discussed.
DOI10.1039/b315417c
Indexed BySCI
Language英语
WOS IDWOS:000221886100064
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:35[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/82466
Collection中国科学院化学研究所
Corresponding AuthorWu, W
AffiliationChinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Zhang, ZF,Wu, W,Liu, ZM,et al. A study of tri-phasic behavior of ionic liquid-methanol-CO2 systems at elevated pressures[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2004,6(9):2352-2357.
APA Zhang, ZF,Wu, W,Liu, ZM,Han, BX,Gao, HX,&Jiang, T.(2004).A study of tri-phasic behavior of ionic liquid-methanol-CO2 systems at elevated pressures.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,6(9),2352-2357.
MLA Zhang, ZF,et al."A study of tri-phasic behavior of ionic liquid-methanol-CO2 systems at elevated pressures".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 6.9(2004):2352-2357.
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