Vol 3 , Issue 3 , July - September 2015 | Pages: 83-89 | Research Paper
Received: July 10, 2015 | Revised: July 20, 2015 | Accepted: August 28, 2015 | Published Online: September 15, 2015
Author Details
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A two-step transesterification process is developed to convert the high FFA oils to its mono-esters. Using 100 ml of oil, the optimum combination of parameters for pretreatment were found to be 0.45 v/v methanol-oil-ratio, 0.5% v/v H2SO4 acid catalyst, 50˚C and 45 min reaction time. After pretreatment of neem oil, transesterification reaction was carried out with 4.5:1 methanol-to-oil molar ratio, 1% KOH as alkaline catalyst, 75 min reaction time and 50˚C reaction temperature to produce the fatty acid methyl ester. This two step process gave maximum average yield of 70±2%.
Keywords
Homogeneous Catalysts (KOH and NaOH); Experimentation; Acid esterification; Alkaline transesterification; Neem Oil (Azadirachta indica);Neem Oil Methyl Ester (Biodiesel).