COMPARISON OF THE HYDROCARBON COMPOSITION AND PHYSICOCHEMICAL PROPERTIES OF GASOLINE FROM GAS STATIONS IN YEMEN AND QUALITY ASSESSMENT

This article shows the results of determining the quality characteristics of two gasoline samples collected from gas stations in Yemen. For gasoline samples, properties such as average molecular weight, relative density, carbon, hydrogen and oxygen content, as well as octane number were determined and compared. In addition, an analysis of the group hydrocarbon composition of motor gasoline samples was carried out using the gas chromatographic method.Gasoline 95 has a higher average molecular weight and relative density compared to 91 gasoline, indicating an increased presence of heavier components. This shows that 95 gasoline is of higher quality and allows you to increase the effective power of the internal combustion engine.