EXPERIMENTAL DETERMINATION OF DISTILLATION CURVES OF ALCOHOLS/GASOLINE BLENDS AS BIO-FUEL FOR SI ENGINES
The use of oxygenates as a gasoline blend is one of production methods for high octane gasoline and reduction of harmful compounds amount in exhaust gas. Distillation curves are presented for single monohydroxy alcohols and gasoline mixtures containing 3- 15% by volume of ethanol, 1-butanol and i-butanol (2-methyl-1-propanol) which can be obtained from renewable sources. The influence of various concentrations of these alcohols on the distillation characteristics of base gasoline were investigated. Most alcohols form mixtures with gasoline exhibiting near-azeotropic behavior near its boiling point that significantly affect the shape of the distillation curves. In addition, distillation curves for a variety of dual-alcohol blends are presented, containing 10-20% by volume of two alcohols.