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Binary and ternary vapor–liquid equilibrium data of the system ethylbenzene + styrene + 3-methyl-N-butylpyridinium tetracyanoborate at vacuum conditions and liquid–liquid equilibrium data of their binary systems

Authors
Journal
Fluid Phase Equilibria
0378-3812
Publisher
Elsevier
Publication Date
Volume
315
Identifiers
DOI: 10.1016/j.fluid.2011.11.027
Keywords
  • Vapor–Liquid Equilibrium
  • Liquid–Liquid Equilibrium
  • Ionic Liquid
  • Aromatics
  • Nrtl

Abstract

Abstract In this study, binary LLE data at 313.2, 333.2, and 353.2 K, binary VLE data in the pressure range of 3–30 kPa and ternary VLE data at 5, 10, and 15 kPa have been determined for the system ethylbenzene + styrene + [3-mebupy][B(CN) 4]. The IL [3-mebupy][B(CN) 4] can increase the relative volatility of the ethylbenzene/styrene mixture from 1.4 without solvent up to 2.2 and is therefore a promising solvent. The binary and ternary VLE data were regressed separately with the NRTL model. The correlation statistics demonstrated that the NRTL model can describe the experimental data adequately. It was not possible to get a proper description of the ternary VLE data with the NRTL parameters determined solely from the binary systems.

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