Liquid phase adsorption of α-tocopherol by activated carbon

Awang Bono, and Chu, Chi Ming and Murni Sundang, (2007) Liquid phase adsorption of α-tocopherol by activated carbon. Journal of Applied Sciences, 7 (15). pp. 2080-2083. ISSN 1812-5654

[img]
Preview
Text
Liquid_phase_adsorption_of_α-tocopherol_by_activated_carbon.pdf

Download (208kB) | Preview

Abstract

α-Tocopherol or commonly called vitamin E can be found in major commercial vegetable oils such as soya oil and palm oil. However the existence in these oil is in low concentration. The recovery of low concentration of α-tocopherol from palm oils is increasingly popular. Adsorption technique for the recovery of α-tocopherol from palm oil is believed to be much lower in cost and more effective. As a case study in this work, activated carbon is chosen as the adsorbent and ethanol as the solvent. The adsorption equilibria of α-tocopherol onto activated carbon was conducted in batch and the concentration of α-tocopherol was identified by LCMS. Langmuirian monolayer adsorption theory was used for the analysis of the isotherm equilibria. The adsorptivity of α-tocopherol onto activated carbon was identified. The adsorption equilibria at low concentration found to be linear. The breakthrough curve was then generated using model assuming isothermal, single transition trace component with intraparticle diffusion. Sensitivity test on the curve indicated that the system is very sensitive to changes in diffusitivity and passive to changes on the equilibrium constant. © 2007 Asian Network for Scientific Information.

Item Type: Article
Uncontrolled Keywords: α-tocopherol, Dynamics, Langmuir isotherm, Monolayer adsorption, Sensitivity
Subjects: ?? QD241-441 ??
?? S583-587.73 ??
Divisions: SCHOOL > School of Engineering and Information Technology
Depositing User: Unnamed user with email storage.bpmlib@ums.edu.my
Date Deposited: 29 Apr 2011 09:01
Last Modified: 16 Oct 2017 05:12
URI: http://eprints.ums.edu.my/id/eprint/2898

Actions (login required)

View Item View Item

Browse Repository
Collection
   Articles
   Book
   Speeches
   Thesis
   UMS News
Search
Quick Search

   Latest Repository

Link to other Malaysia University Institutional Repository

Malaysia University Institutional Repository