Biodiesel Production from Spent Fish Frying Oil Through AcidBase Catalyzed Transesterification

  • Abdalrahman B. Fadhil Department of Chemistry, College of Science, Mosul University, Mosul, Iraq
  • Mohammed M. Dheyab Department of Chemistry, College of Science, Mosul University, Mosul, Iraq
  • Kareem M. Ahmed Department of Chemistry, College of Science, Mosul University, Mosul, Iraq
  • Marwa H. Yahya Department of Chemistry, College of Science, Mosul University, Mosul, Iraq

Abstract

Biodiesel fuels were prepared from a special type of frying oil namely spent fish frying oil through two step transesterification viz. acid-base catalyzed transesterification. Hydrochloric acid and potassium hydroxide with methanol were used for this purpose. The oil was pre-treated with (1.0 wt% HCl) and methanol to reduce free fatty acids content of the oil. Then, conditions of the base catalyzed step such as base concentration, reaction temperature, methanol to oil molar ratio and reaction time were optimized. The study raveled that, 0.50% KOH w/w of oil; a 6:1 methanol to oil molar ratio; a reaction temperature of 60°C and a duration of 1h were the optimal conditions because they resulted in high biodiesel yield. Fuel properties of the products were assessed and found better than those of the parent oil. Furthermore, they met the specified limits according to the ASTM standards. Thin layer chromatography was used as a simple technique to monitor the transesterification of the oil. Blending of the optimal biodiesel sample with petro diesel using specified volume percentages was done as well. The results indicated that biodiesel had slight effect on the values of the assessed properties.

Published
Jun 1, 2012
How to Cite
B. FADHIL, Abdalrahman et al. Biodiesel Production from Spent Fish Frying Oil Through AcidBase Catalyzed Transesterification. Pakistan Journal of Analytical & Environmental Chemistry, [S.l.], v. 13, n. 1, p. 7, june 2012. ISSN 2221-5255. Available at: <http://pjaec.pk/index.php/pjaec/article/view/188>. Date accessed: 23 nov. 2017.