Abstract
Benzyl alcohols are an important class of aromatic alcohols used in the fine chemical and pharmaceutical industries which can be found in extracted bio-oils produced from the thermochemical liquefaction of lignocellulosic biomass.Equation-of-state (EOS) models can be used to describe the vapour-liquid equilibrium (VLE) to support supercritical fluid extraction (SFE) studies of key compounds from bio-oils, but ideally require experimentally determined binary VLE data at appropriate conditions of temperature and pressure.In this study, high-pressure solubility data of benzyl alcohol in supercritical carbon dioxide (scCO2) is reported. Data has been determined experimentally at temperatures of 313 K, 333 K and 353 K and at pressures up to 284 bar. Data was used to validate and support existing published solubility data. It was shown that the literature VLE data regression to the Peng-Robinson-Boston-Mathias (PR-BM) model was good in fitting benzyl alcohol solubility data determined both in this study and in previous literature.
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