Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/27460
Title: Solubilities of hydrofluorocarbons in ionic liquids: experimental and modelling study
Authors: Sousa, José M. M. V. 
Granjo, José F. O. 
Queimada, António J. 
Ferreira, Abel G. M. 
Oliveira, Nuno M. C. 
Fonseca, Isabel M. A. 
Keywords: G/L solubility; Hydrofluorocarbon; Ionic liquid; CPA EoS; Regular solution model
Issue Date: Jun-2014
Publisher: Elsevier
Citation: SOUSA, José M. M. V. [et. al] - Solubilities of hydrofluorocarbons in ionic liquids: experimental and modelling study. "The Journal of Chemical Thermodynamics". ISSN 0021-9614. Vol. 73 (2014) p. 36-43
Serial title, monograph or event: The Journal of Chemical Thermodynamics
Volume: 73
Abstract: In this work, experimental data on the gas solubility of hydrofluorocarbons (CHF3, CH2F2 and CH3F) in four room-temperature ionic liquids (RTILs) were determined within the temperature range 288 K to 308 K and at atmospheric pressure. The RTILs used were 1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide([C2mim][NTf2]), (trihexyl)tetradecyl-phosphoniumbis(trifluoro-methylsulfonyl)imide ([P6,6,6,14][NTf2]), and N-methyl-2-hydroxyethylammoniumpropionate ([m-2-HEA][Pr]) and pentanoate ([m-2-HEA][P]). Two modelling approaches, which we denote as predictive and correlative, were compared. In the former, the cubic plus association equation of state (CPA EoS) is used as a predictive model to estimate the solubilities using only pure components physical properties. In the latter, the regular-solution theory is the basis to build an empirical model whose parameters are obtained through least-squares fitting of experimental values.
URI: http://hdl.handle.net/10316/27460
ISSN: 0021-9614
DOI: 10.1016/j.jct.2013.07.013
Rights: openAccess
Appears in Collections:FCTUC Eng.Química - Artigos em Revistas Internacionais

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