Influence of gamma radiation on the composition and physicochemical characteristics of olefins: post-radiation effects

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The effect of gamma radiation on olefins was studied under static conditions at an absorbed dose of 65 kGy and at a dose rate of P = 0.076 Gy/s. The effect of radiation on the physicochemical characteristics and structural and group composition of the resulting olefins has been established. Post-irradiation effects were studied immediately after irradiation and during 1, 2, 4, and 7 months later. When fuels are irradiated, polymerization of unsaturated hydrocarbons occurs. After cessation of irradiation, the postpolymerization process occurs The chemical instability of olefins in fuels leads to the formation of carbon deposits in the engine system, tanks, and valves. IR spectra, iodine values, density, and kinematic viscosity of irradiated samples were measured.

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Sobre autores

N. Guliyeva

Institute of Radiation Problems, Ministry of Science and Education of the Republic of Azerbaijan

Autor responsável pela correspondência
Email: clala@mail.ru
Azerbaijão, B. Vahabzade, 9, Baku, AZ1143

L. Jabbarova

Institute of Radiation Problems, Ministry of Science and Education of the Republic of Azerbaijan

Email: clala@mail.ru
Azerbaijão, B. Vahabzade, 9, Baku, AZ1143

I. Mustafayev

Institute of Radiation Problems, Ministry of Science and Education of the Republic of Azerbaijan

Email: clala@mail.ru
Azerbaijão, B. Vahabzade, 9, Baku, AZ1143

S. Aliyeva-Chichek

Institute of Radiation Problems, Ministry of Science and Education of the Republic of Azerbaijan

Email: clala@mail.ru
Azerbaijão, B. Vahabzade, 9, Baku, AZ1143

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2. Fig. 1. The effect of gamma radiation on the density (a) and viscosity (b) of a hexane-hexene mixture at a concentration of n-olefin (20%) immediately and 1, 2 and 7 months after irradiation.

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3. Fig. 2. The effect of gamma radiation on the iodine numbers of 100% n-hexene 1, 2, and 7 months after gamma radiation.

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4. Fig. 3. Dependence of the post-radiation effect (PRE,%) of the viscosity of the n-hexane–n-hexene mixture (80/20%) on the time after irradiation. D = 80 kGy.

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5. Fig. 4. Dose dependence of the radiation effect of the viscosity (a) and density (b) of the hexane–hexene mixture (80/20%) immediately after gamma irradiation, 1, 2 and 7 months after gamma irradiation

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6. Fig. Рис. 5. Влияние гамма-облучения на плотность (а), вязкость (б) и йодные числа (в) децена сразу после облучения, через 1, 2 и 4 месяца после облучения.

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7. Fig. 6. IR spectra of the decene sample at an absorbed dose of D = 64.8 kGy: a — before irradiation, b — immediately after irradiation, c — 4 months after irradiation.

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