Details

Autor(en) / Beteiligte

• Gonçalves, Daniel
• Koshima, Cristina Chiyoda
• Batista, Fábio Rodolfo Miguel
• Rodrigues, Christianne Elisabete da Costa

Titel

Performance of continuous countercurrent extractor on the fractionation of Citrus bergamia essential oil using ethanol/water mixtures as solvents

Ist Teil von

• Chemical engineering research & design, 2018-09, Vol.137, p.566-576

Ort / Verlag

Rugby: Elsevier B.V

Erscheinungsjahr

2018

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• [Display omitted] •Bergamot crude and model essential oils were fractionated by solvent extraction.•The performance of PRDC was appraised.•The fractionation process was simulated by Aspen Plus software.•Increased S/F and lower water in the solvent led to higher extraction indices.•Lower oxygenated compounds content in the feed are related to higher Folds. Bergamot model mixture and crude bergamot essential oil (CBEO) were fractionated in a perforated rotating disc contactor (PRDC) using as solvents ethanol with 30% (Et30) and 40% (Et40) water, in mass. The apparatus performance was evaluated by experimental extraction indices, essential oil (EO) folding and estimative of mass transfer coefficients. The effects of the solvent to feed mass flow ratio (S/F), disc rotation speed (DRS), feed composition, and water content in the solvent over the process performance were thus appraised. Furthermore, the fractionation of model mixtures was simulated by Aspen Plus software. It was experimentally verified that higher S/F improved the extraction indices and mass transfer, whereas solvent Et40 and higher DRS also contributed for that results. Solvent Et40 extracted lower amount of components from the EO, but the Folds were similar to the ones achieved using solvent Et30. The simulation followed the same tendency. For the model mixture, a 1.54-fold EO was obtained, while for the CBEO a 1.4-fold EO was reached. Overall, solvent Et40, S/F close to 2, and low DRS exhibited the best results for the fractionation of CBEO in PRDC.