Please use this identifier to cite or link to this item: https://hdl.handle.net/11499/9561
Title: Supercritical carbon dioxide extraction of flaxseed oil: Effect of extraction parameters and mass transfer modeling
Authors: Özkal, Sami Gökhan
Yener, M.E.
Keywords: Flaxseed oil
Mass transfer
Model
Supercritical fluid extraction
Carbon dioxide
Effluent treatment
Extraction
Flax
High pressure effects
Models
Oilseeds
Particle size
Supercritical fluids
Extraction parameters
Mass transfer modeling
Mean particle diameter
Pressure and temperature
Solid phase mass transfer
Supercritical carbon dioxide extraction
Supercritical carbon dioxides
Publisher: Elsevier B.V.
Abstract: Supercritical carbon dioxide (SC-CO2) extraction of flaxseed oil was performed and effects of process parameters including particle size (mean particle diameter <0.85-0.92 mm), solvent flow rate (2-4 g/min), pressure (40-60 MPa) and temperature (50-70 °C) were investigated. The broken and intact cells (BIC) model was used for mass transfer modeling of the extraction of flaxseed oil with SC-CO2 successfully. Extraction of flaxseed oil was divided into two periods as first (fast) and second (slow) extraction periods. Great part of the flaxseed oil was extracted in the first period and a very small amount was extracted in the second period. Decreasing the particle size increased the amount of released (free) oil. Increasing the pressure, temperature and flow rate also caused slight increases in the released oil amounts. Increase in the solvent flow rate, pressure and temperature increased the extraction rate in the first period within the range of experiments. The fluid phase mass transfer coefficient (kfa) varied between 0.38 and 2.32 min-1 and the solid phase mass transfer coefficient (ksa) varied between 0.5 × 10-3 and 6.7 × 10-3 min-1. © 2016 Elsevier B.V. All rights reserved.
URI: https://hdl.handle.net/11499/9561
https://doi.org/10.1016/j.supflu.2016.02.013
ISSN: 0896-8446
Appears in Collections:Mühendislik Fakültesi Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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