Temperature-dependent diffusion coefficient of soluble substances during ethanol extraction of clove |
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| Authors: | San Myint Wan Ramli Wan Daud Abu Bakar Mohamad Abdul Amir H Kadhum |
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| Affiliation: | (1) Chemical Engineering Department, Yangon Institute of Technology, Myanmar, Malaysia;(2) Chemical and Process Engineering Department, Faculty of Engineering, University Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia |
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| Abstract: | The temperature dependence of the diffusion coefficient of ethanol-soluble substances from ground cloves (particle size 250
μm) during extraction was estimated by fitting batch extraction data at several temperatures (27.8, 40, 50, and 60°C) to a
previously developed mass transfer model. The model was based on spherical geometry of particles. Nonlinear regression analysis
was used to develop an equation that describes the diffusivity as a function of temperature. The temperature dependence ofD
A
was of the Arrhenius type. |
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| Keywords: | Cloves diffusion eugenol extraction mass transfer |
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