Table of Contents
Journal of Fuels
Volume 2014, Article ID 641849, 6 pages
Research Article

Effect of Selected Metal Contaminants on the Stability of Castor Oil Methyl Ester

Department of Chemical Engineering, Faculty of Engineering, University of Benin, Benin City 300001, Nigeria

Received 28 June 2013; Accepted 6 November 2013; Published 28 January 2014

Academic Editors: X. Lu, T. M. I. Mahlia, and S. Som

Copyright © 2014 Christopher E. Akhabue et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This study investigates the effect of iron (Fe) and aluminium (Al) contaminants on the stability of castor oil methyl ester (COME). COME was synthesized via transesterification reaction and the peroxide value of the COME was used to monitor its stability. Varied amounts of Fe and Al (0.2 g, 0.4 g, 0.6 g, 0.8 g, and 1.0 g) in powdered form were added to 100 mL of COME and their effect on the peroxide value was monitored for a day, for the first phase of the experiment, while for the second phase, 0.3 g and 0.8 g of these metals were added to 100 mL COME, and their effect was monitored for 9 days. At the end of the study, it was observed that as the amount of the metals added to the COME increases from 0.2 to 1.0 g/100 mL COME, the peroxide values of the COME decrease from 1.6 to 0.3 meq/kg and 1.2 to 0.3–0.2 meq/kg for Al and Fe contaminated COME after 24 h. Also in the second phase of the experiment, the peroxide value of the 0.3 g Fe metal contaminated COME increased from 1.4 to 11.6 meq/kg while that of 0.8 g Fe contaminated COME increased from 1.4 to 3.0 meq/kg after the nine-day period of investigation.