Faraliana binti Md Dan, Nazlina binti Zulbadli Faculty of Engineering and the Built Environment, SEGi University Journal of Engineering & Technological Advances Vol. 3, Issue 2, pp. 75-87 (2018) https://doi.org/10.35934/segi.v3i2.75 Full Text PDF |
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Abstract
This project focused on the extraction of peanut oil by using Soxhlet extraction. The main objective of this research is to determine the optimum condition for the Soxhlet extraction process in order to produce the highest extraction yields. Apart from that, this research is also to study about the mass transfer rate and kinetic to obtain the suitable diffusion coefficient and rate constant based on Fick’s law and kinetic studies. The experiments were conducted with few manipulated variables which are particle sizes, solvent to solid ratio and extraction contact time. The optimum condition for the peanut oil extraction was found at 0.6 mm of particle size, 15:1 solid to solvent ratio with an extraction time of 8 hours. Besides, the calculated effective diffusivity is 4.3258 x 10-14 m2/s. The extraction rate constant, k was found increase when the ratio of solvent to solid ratio increase due to higher amount of solvent facilitates the extraction process.
Keywords:
Soxhlet extraction, Diffusion coefficient, Kinetic st.