Table of Contents
Journal of Fuels
Volume 2014, Article ID 470790, 6 pages
Research Article

Catalytic Autoxidation of Fatty Acid Methyl Esters from Jatropha Oil

Department of Chemical Engineering & Technology, KTH Royal Institute of Technology, 100 44 Stockholm, Sweden

Received 10 June 2014; Accepted 1 October 2014; Published 16 October 2014

Academic Editor: Marten Ternan

Copyright © 2014 Abebe K. Endalew and Yohannes Kiros. 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.


Metal catalysts for transesterification of vegetable oils can cause autoxidation side reactions which reduces the fuel quality of the biodiesel. On the other side, oxidation of highly unsaturated oils can open opportunities for the synthesis of other important renewable chemical products. This study reports catalytic oxidation of fatty acids of Jatropha curcas oil (JCO) by Li-CaO/Fe2(SO4)3 catalyst during transesterification at mild reaction conditions. The catalytic oxidation of the triglycerides was shown to be enhanced by the presence of lithium incorporated in the otherwise active catalyst combination of CaO/Fe2(SO4)3 used for high conversion into FAME. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) was used to assess the reaction products.