Measurements of different thermodynamic properties of systems containing ionic liquids and correlation of these properties using modified UNIFAC (Dortmund)

摘要

Activity coefficients at infinite dilution (γ~∞), vapor-liquid equilibria (VLE) and excess enthalpies (HE) for different alkanes and alkenes with the ionic liquids 1-butyl-3-methylimidazolium trifluoromethanesulfonate [BMIM]~+[OTF]~-, 1-hexyl-3-methylimidazolium trifluoromethanesulfonate [HMIM]~+[OTF]~- and 1-octyl-3-methylimidazolium trifluoromethanesulfonate [OMIM]~+[OTF]~- have been measured. The new data were used to revise and extend the group interaction parameter matrix of modified UNIFAC (Dortmund).