Mass transfer modeling of apricot kernel oil extraction with supercritical carbon dioxide

Date

2005-09-01

Author

Ozkal, SG
Yener, Meryem Esra
Bayindirli, L

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

195
views

0
downloads

Effects of process parameters on extraction of apricot (Prunus armeniaca L.) kernel oil with supercritical carbon dioxide (SC-CO2) were investigated. The parameters included particle size (mean particle diameter < 0.425-1.5 mm), solvent flow rate (1-5 g/min), pressure (300-600 bar), temperature (40-70 degrees C) and co-solvent concentration (up to 3.0 wt.% ethanol). The model of broken and intact cells represented the apricot kernel oil extraction well. Grinding was necessary to release the oil from intact oil cells of kernel structure. About 99% apricot kernel oil recovery was possible if particle diameter decreased below 0.425 mm. Two extraction periods were distinguished. The released oil on the surface of particles was extracted in the fast extraction period while the unreleased oil in the intact cells was extracted in the slow extraction period. The amount oil recovered in the slow extraction period was negligible compared to the amount recovered in the fast extraction period. Extraction rate in the fast extraction period increased with increase in solvent flow rate, pressure, temperature, and ethanol addition. Mass transfer coefficients in the fluid phase and in the solid phase changed between 0.7 and 3.7 min(-1), and between 0.00009 and 0.0005 min(-1), respectively. Mass transfer coefficient in the fluid phase increased with decrease in particle size and pressure, and with increase in solvent flow rate, temperature and ethanol concentration.

Subject Keywords

Supercritical carbon dioxide, Apricot kernel oil, Extraction, Mass transfer, Solubility

URI

https://hdl.handle.net/11511/46453

Journal

JOURNAL OF SUPERCRITICAL FLUIDS

DOI

https://doi.org/10.1016/j.supflu.2004.12.011

Collections

Department of Food Engineering, Article

Suggestions

OpenMETU
Core

Supercritical carbon dioxide extraction of hazelnut oil Ozkal, SG; Salgin, U; Yener, Meryem Esra (2005-07-01) Solubility of hazelnut oil in supercritical carbon dioxide (SC-CO2) was determined at 15-60MPa, and 40-60 degrees C. The crossover pressure of hazelnut oil was between 15 and 30MPa. The solubility increased with pressure, but increased with temperature above the crossover pressure. Hazelnut particles (1-2 mm) were extracted at 30-60MPa, and 40-60 degrees C with SC-CO2 flow rate of 2 ml/min. Extraction occurred in two periods. The released oil on the surface of particles was extracted in the fast extraction ...
Supercritical carbon dioxide extraction of flaxseed oil: Effect of extraction parameters and mass transfer modeling ÖZKAL, SAMİ GÖKHAN; Yener, Meryem Esra (2016-06-01) 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 degrees 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) extr...
Response surfaces of apricot kernel oil yield in supercritical carbon dioxide Ozkal, SG; Yener, Meryem Esra; Bayindirli, L (2005-01-01) Response surface methodology was used to determine the effects of solvent flow rate (2, 3 and 4 g/min), pressure (30, 37.5 and 45 MPa), temperature (40, 50 and 60 degrees C), and co-solvent concentration (0, 1.5 and 3 wt% ethanol) on oil yield of apricot (Prunus armeniaca L.) kernel oil in supercritical carbon dioxide (SC-CO2). All the parameters had significant effects on oil yield as well as the interactions between solvent flow rate and pressure, and between pressure and temperature. Oil yield increased ...
Solubility of CO2-philic polyhedral oligomeric silsesquioxanes in supercritical carbon dioxide Demirtaş, Cansu; Dilek Hacıhabiboğlu, Çerağ; Department of Chemical Engineering (2019) Polyhedral oligomeric silsesquioxanes (POSS) with different functional groups and carbon dioxide (CO2) binary systems’ phase behavior have been studied in a high- pressure visible cell to contribute to the development of environmentally friendly processes of POSS with supercritical carbon dioxide. POSS can show different hybrid material properties due to its functional groups attached to its cage structure. Supercritical carbon dioxide, which is referred as an environmentally friendly solvent, can exhibit s...
Continuous supercritical carbon dioxide processing of palm oil Ooi, CK; Bhaskar, A; Yener, Meryem Esra; Tuan, DQ; Hsu, J; Rizvi, SSH (1996-02-01) Crude palm oil was processed by continuous supercritical carbon dioxide. The process reduces the contents of free fatty acids, monoglycerides and diglycerides, certain triglycerides, and some carotenes. The refined palm oil from the process has less than 0.1% free fatty acids, higher carotene content, and low diglycerides. Solubility of palm oil in supercritical carbon dioxide increased with pressure. A co-solvent improves the refining process of palm oil.

Citation Formats

S. Ozkal, M. E. Yener, and L. Bayindirli, “Mass transfer modeling of apricot kernel oil extraction with supercritical carbon dioxide,” JOURNAL OF SUPERCRITICAL FLUIDS, pp. 119–127, 2005, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46453.