Optimization and modeling of extraction of solid coconut waste oil
Document Type
Article
Publication Date
1-1-2013
Abstract
Solid coconut waste was produced after coconut milk extraction process and may still contain up to 24 wt. oil content. In this work, extraction of oil from coconut waste using batch and soxhlet extractor was studied. Effect of particle size diameter, type of solvent and solvent to solid ratio on the kinetic and thermodynamic parameters; entropy, enthalpy and free energy of extraction were investigated. The maximum oil yields for soxhlet and batch reactor were 23.6 at 80 degrees C and 21.9 at 65 degrees C, respectively for particle size diameter <0.5 mm when hexane was used as solvent. The kinetic of coconut waste oil extraction was found to be a first order mass transfer model. The Delta G, Delta S and Delta H values were 10.94-13.35 kJ/mol, 33.10-39.57 J/mol K and 0.12-1.25 kJ/mol, respectively shows that the extraction process was spontaneous, irreversible and endothermic based on thermodynamic parameters.
Keywords
coconut waste, optimization, mass transfer, batch extraction, soxhlet extraction, solvent-extraction, vegetable-oils, mass-transfer, olive cake, kinetics, thermodynamics, density.
Divisions
fac_eng
Publication Title
Journal of Food Engineering
Volume
114
Issue
2
Publisher
Journal of Food Engineering
Additional Information
Times Cited: 1 Sulaiman, Sarina Aziz, A. R. Abdul Aroua, Mohamed Kheireddine