Abstract
The supercritical fluid extraction of phenol, a common pollutant, from aqueous solutions is performed in a bench-scale extraction apparatus through the use of supercritical CO2 at 150 bar and 45°C. The obtained results are satisfactory, and the influence of pressure and flow rate of supercritical CO2, as well as the co-solvent effect, are examined. Finally, the LCVM (Linear Combination of Vidal and Michelsen) mixing rules model, an EoS/Ge (Equation of State/Gibbs free energy) one, thermodynamic model with new interaction parameters, combined with a simple mathematical one, is used successfully for the correlation of the experimental results by adjusting the overall volumetric mass transfer coefficients of the process.
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