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In this study, crude mixed oil was used as feedstock for biodiesel production by Homogeneous Catalyst. The reaction in the presence of KOH as catalyst was carried out to investigate the optimum conditions and study the effect of variables on the reaction. The variables included methanol to oil molar ratios, catalyst concentrations, reaction temperature and reaction times. Gas chromatography was used to determine the fatty acid composition of mixed oil. The optimum conditions for mixed oil biodiesel production were a catalyst concentration of 1.0% w/w of oil, a reaction temperature of 70 o C, a reaction time of 30minutes 6:1 methanol to oil molar ratio at 400rpm. The methyl ester content under these optimum conditions was 95.10%, and all the measured properties of mixed oil biodiesel met the ASTM standards.

Optimization of Biodiesel production from mixed oil (Karanja & Dairy waste Scum oil) using Homogeneous Catalyst.