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Measurement and modeling of supercritical carbon dioxide extraction of phenol from water

✍ Scribed by D. Ghonasgi; S. Gupta; K.M. Dooley; F.C. Knopf

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
667 KB
Volume
4
Category
Article
ISSN
0896-8446

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✦ Synopsis

An equilibrium flow apparatus for measuring phase equilibria in systems containing liquids and supercritical fluids is described. Saturated vapor and liquid compositions and K values are determined with this apparatus for the ternary system of CO2, phenol, and water. The results are accurately modeled using a perturbation theory-based equation-of-state (EOS) -the Carnahan-Starling-DeSantis-Redlich-Kwong (CSDRK) EOS. Differences with K values previously reported in the literature are discussed.

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Supercritical carbon dioxide (SC-extraction on a laboratory-CO 2 ) scale, was applied to produce oleoresin from dried onion (Allium cepa L). The goal of this work was to determine the optimal conditions of extraction for producing oleoresin with the highest yield and the best quality. A polynomial m