Optimization of Process Variables in the production of Biodiesel from Jatropha-Neem Hybrid Feed stock Mixture

Abstract

In the search for suitable clean and renewable fuels to replace conventional diesel, alternatives such as biodiesels are being researched upon daily. Challenges of low biodiesel yield per hectare of vegetable oils have prompted the need for optimization. This research is aimed at optimizing process variables in the production of biodiesel from the mixture of Jatropha and Neem seed oils. A 31-run Central Composite Design was employed in a response surface optimization process; four independent process variables, namely temperature, time, catalyst concentration and mixing speed were optimized in an alkali based transesterification process of biodiesel synthesis. The result was a 97.05% biodiesel yield from Jatropha –Neem hybrid mixture.