Impact of Ionizing Radiation on Physicochemical and Operating Properties of Gasoline with Benzene Additive

The effect of irradiation of AI-92 grade gasoline with benzene additive was studied. The kinetics of the processes was examined at temperature T = 20°C, dose rate P = 0.072 Gy/s in the absorbed dose range ( D ) of 27–78 kGy. The results of gas chromatography-mass spectrometry (GC/MS) analysis, IR spectroscopic studies, and determination of the density and viscosity of samples before and after irradiation at various absorbed doses are reported. An assessment of the physicochemical parameters of γ-irradiated gasoline with 1, 2, 4, 6% benzene additives shows that γ-radiation negatively affects the operating parameters (viscosity and density) of AI-92 gasoline. The optimal concentration of benzene in gasoline is 6%, at which viscosity and density diminish with increasing absorbed dose. The kinetics of post-polymerization processes within 8 months after the end of irradiation shows that the rate of the process and its proportion in the total polymerization depend on the irradiation time, the density of the initial mixture and the dose.