Esterification of High Free Fatty Acid Jatropha curcas Oil for Biodiesel Production

  • Maha A. A. Abdelrahman National Oilseed Processing Research Institute (NOPRI),
  • Atif A. A. Yassin National Oilseed Processing Research Institute (NOPRI),
  • Ismail Hassan Hussein National Oilseed Processing Research Institute (NOPRI),
  • Mohamed E.S. Mirghani 3- International Islamic University Malaysia, Department of Biotechnology Engineering, Faculty of Engineering
  • Abdallah B. Karama Karary University, Khartoum, Sudan

Abstract

This study investigated the esterification of high free fatty acid (FFA) Jatropha curcas (J. curcas) seed oil (6.3 to14.6 %) to produce biodiesel using sulphuric acid with reaction parameters 1% H2SO4, 600 rpm at 60 oC and one hour reaction time. At methanol to oil ratio 3:1, FFAs were reduced to 4.73% with conversion 45%; at 6:1 methanol to oil ratio, FFAs were reduced to 2.31% with conversion 72%; at 7.5:1 methanol to oil ratio FFAs are decreased to less than 2% with conversion ≥85% and there is no considerable difference when increasing methanol to oil ratio to 9:1. Hence the optimum methanol to oil molar ratio is 7.5:1, moreover, the esterification process is not affected by the initial FFA.

Published
2018-10-02
How to Cite
A. A. ABDELRAHMAN, Maha et al. Esterification of High Free Fatty Acid Jatropha curcas Oil for Biodiesel Production. Gezira Journal of Engineering and Applied Sciences, [S.l.], v. 13, n. 1, oct. 2018. ISSN 1858-5698. Available at: <http://journals.uofg.edu.sd/index.php/gjeas/article/view/758>. Date accessed: 11 dec. 2018.
Section
Articles