Catalytic production of biodiesel from soy-bean oil, used frying oil and tallow

Three fatty materials, soy-bean oil, used frying oil and tallow, were trans formed into two different types of biodiesel, by transesterification and am idation reactions with methanol and diethylamine respectively. The ignition properties of these types of biodiesel were evaluated calculating the ceta ne index of the transesterification products, and the blending cetane numbe r of the amide biodiesel blended with conventional diesel. Amide biodiesel enhances the ignition properties of the petrochemical diesel fuel, and it c ould account for the 5% market share that should be secured to biofuels by 2005. (C) 2000 Elsevier Science Ltd. All rights reserved.