Partition coefficients of furan derivative compounds in 1-n-butyl-3-methylimidazolium chloride ([bmim][Cl])-supercritical CO2 biphasic systems and their correlation and prediction with the LSER-δ model

Yuya Hiraga, Atsushi Hayasaka, Yoshiyuki Sato, Masaru Watanabe, Richard L. Smith

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

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 353K and at pressures from 9 to 21MPa 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.

Original languageEnglish
Pages (from-to)32-40
Number of pages9
JournalJournal of Supercritical Fluids
Volume79
DOIs
Publication statusPublished - 2013

Keywords

  • Equation of state
  • Ionic liquid
  • Linear solvation energy relationship
  • Supercritical fluids chromatography

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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