Abstract
Ethanol gasoline is a new type of clean energy which is formed by mixing fuel ethanol and ordinary gasoline in a certain proportion. The use of ethanol gasoline in motor vehicles can reduce the emissions of exhaust pollutants and improve the engine performance, but there are also problems such as low combustion calorific value, strong corrosion and easy stratification. Based on the comparison of physical and chemical properties of ethanol and gasoline, the octane number, calorific value, oxygen content, latent heat of vaporization and ignition limit of ethanol gasoline were analyzed. The main problems are discussed in this paper, and the factors affecting the stability of ethanol gasoline are analyzed from three aspects of temperature, water content and ethanol content.
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