Antiknock Properties and Volatility Criteria of Some Gasoline- Butanol Blends

Antinock properties and volatility criteria were studied for all-hydrocarbon gasoline before and after blending with 8 and 12 volume percent n-and iso-butanol. Composition and specifications of the hydrocarbon- base gasoline and the formulated gasoline- oxygenate blends, were determined through gas chromatographic analysis and the standard test methods. The effects of n-and iso-butanol addition on driveability performance and volatility criteria, were studied. Keywords : oxygenated gasoline, gasoline-butanol blend volatility criteria, antiknock properties.