Optimization and modeling of extraction of solid coconut waste oil

Sulaiman, Sarina and Abdul Raman, Abdul Aziz and Aroua, Mohamed Kheireddine (2013) Optimization and modeling of extraction of solid coconut waste oil. Journal of Food Engineering, 114 (2). pp. 228-234. ISSN 0260-8774

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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.

Item Type: Article
Additional Information: Times Cited: 1 Sulaiman, Sarina Aziz, A. R. Abdul Aroua, Mohamed Kheireddine
Uncontrolled Keywords: coconut waste; optimization; mass transfer; batch extraction; soxhlet extraction; solvent-extraction; vegetable-oils; mass-transfer; olive cake; kinetics; thermodynamics; density.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 16 Jul 2013 01:41
Last Modified: 06 Dec 2019 07:42
URI: http://eprints.um.edu.my/id/eprint/7384

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