The kinetics of supercritical fluid extraction (SFE) of clove and vetiver oils using carbon dioxide as solvent wasstudied, in order to establish an efficient method to predict extraction curves on large scale. The mass transfer model ofSovová was used to adjust the experimental SFE data, which were obtained at 100 bar and 35 °C for clove and 200 barand 40 °C for vetiver, using extraction columns of different geometry and solvent flow rates. Some other process parameters,such as bed density and porosity, solvent to feed ratio and solvent velocity were kept constant from one experimentto another, in order to verify if the mass transfer coefficients adjusted by the model varied. The results show that themodel of Sovová was able to predict an overall extraction curve for clove from data obtained with twenty times less rawmaterial, since the mass transfer coefficients remained the same and the predicted curves were similar to the observedones. For vetiver, the simulation was not as effective, probably due to the effects of transport properties on the process.
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