Optimization of Biodiesel Production from Mutton Fats Using Alkaline Catalysts

In this research, biodiesel is produced from mutton fats using alkalyne catalysts (such as potassium methoxide and potassium hydroxide) by trans-estrification process. For this purpose, the effect of several parameters was studied on biodiesel production. The results showed that the maximum efficiency of biodiesel production using potassium hydroxide was obtained at temperature 70C, methanol to oil ratio 1:12, 1 wt. % catalyst, 60 min, and mixing rate of 1250 rpm. Also, optimal conditions for biodiesel production by using potassium methoxide were 70 C, 1:9, 1.75 wt. %, 80 min, and 1250 rpm, respectively. Additionally, the maximum efficiency of biodiesel production using potassium methoxide and potassium hydroxide were obtained 87 and 90 %, respectively. After preparation of biodiesel, its properties such as viscosity, density, cetane number, pour point, flash point and cloud point were analyzed according to the ASTM D 6751 and EN 14214.