کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
230711 | 1427398 | 2013 | 9 صفحه PDF | دانلود رایگان |
Infinite dilution partition coefficients of furan and furan derivative compounds (2-methylfuran, 2-ethylfuran, furfural and furfuryl alcohol) between ionic liquid ([bmim][Cl]: 1-n-butyl-3-methylimidazolium chloride) and supercritical carbon dioxide (scCO2) were measured at temperatures from 313 to 353 K and at pressures from 9 to 21 MPa with a chromatographic method. A linear solvation energy relationship-solubility parameter (LSER-δ) model was applied to available data and was compared with a proposed entropic term and with the Sanchez–Lacombe equation of state (SL EoS). The average relative deviations (ARDs) of furan derivative compounds, which were newly measured, for SL EoS model, LSER-δ model and modified LSER-δ model were within 3.2%, 14.9% and 14.7%, respectively. The LSER-δ model can be applied as prediction model for Kw3∞ of ionic liquid–CO2 systems for which solute descriptors are available.
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► New partition coefficient data of furan derivative compounds are reported.
► Ionic liquid [bmim][Cl]–supercritical CO2 biphasic system properties.
► Correlation of data with Sanchez–Lacombe equation of state.
► LSER-solubility parameter (δ) model for compressible phases.
Journal: The Journal of Supercritical Fluids - Volume 79, July 2013, Pages 32–40