FUEL COMPONENTS TO ENHANCE THE ANTIKNOCK PROPERTIES OF GASOLINE

Abstract

This article investigates the influence of oxygenated compounds on the antiknock properties of gasoline. Various oxygenate additives, including acetone, ethylene glycol ethyl ether, diethylene glycol ethyl ether, and diethylene glycol butyl ether, were blended with base gasoline at concentrations ranging from 0.5% to 5%. The physicochemical properties of the resulting fuel blends were evaluated using standard methods established by the American Society for Testing and Materials (ASTM). The results indicate that acetone has only a minimal effect on improving antiknock performance, although a 5% addition increases the octane number by 4.5 units. In contrast, ethylene glycol ethyl ether significantly enhances fuel quality, raising the octane rating from 78.5 to 88.5 across the tested concentration range. Diethylene glycol ethyl ether shows an even stronger effect, increasing the octane number up to 91.5. Among all tested additives, diethylene glycol butyl ether demonstrates the highest performance, substantially improving the octane rating to 93.1. Overall, the study confirms that diethylene glycol butyl ether is the most effective additive for enhancing the antiknock characteristics of gasoline among the examined oxygenated compounds.