Improve Gasoline Octane Number and Studying Reid Vapor Pressure Effect and Calorific Value by using Environmental Additives

An assessment for the addition of DO and DOA on the octane number and Reid vapor pressure (RVP) of gasoline with different chemical compositions. The locally produced gasoline was blended with three different ratios (v/v) of the additives, i.e. 8, 10 and 15%. The octane rating of gasoline was found increasing continuously and linearly with addition of DO and DOA. The DOA-gasoline blends produced higher octane number. The two additives observed the significant decreasing of the RVP and CV of the original fractions when mixed with gasoline. However, the additives were added in 8, 10, 15%vol to gasoline blend, the increasing RON was 0.9–23.9.