Conclusions
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1.
Naphthenic-aromatic hydrocarbons give a considerable reduction in the thermal-oxidative stability of hydrocarbon fuels and are the cause and source of insoluble resin and sediment formation at elevated temperatures.
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2.
The minimum amount of sediment is formed when the naphthenic-aromatic hydrocarbons under investigation are added to decalin, and the maximum amount when they are added to isoalkanes or cyclanes with long side chains.
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3.
Oxidation of the naphthenic-aromatic hydrocarbons takes place at the naphthenic ring, which is subsequently ruptured with the formation of ketones. Rupture of the naphthenic ring in acenaphthene takes place at a C-C bond immediately adjoining either aromatic ring, and in tetralin between the first and second carbon atoms.
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4.
The naphthenic-aromatic hydrocarbons are the primary participants in solid-phase formation in the oxidation of hydrocarbon mixtures; however, the composition of the sediments also includes products of intensive oxidative polymerization and condensation of these hydrocarbons with alkanes and cyclanes.
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Additional information
Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 4, pp. 40–43, April, 1967.
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Bol'shakov, G.F., Bushueva, E.M. & Glebovskaya, E.A. Effect of certain naphthenic-aromatic hydrocarbons on solid-phase formation in hydrocarbon fuels. Chem Technol Fuels Oils 3, 270–274 (1967). https://doi.org/10.1007/BF00731751
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DOI: https://doi.org/10.1007/BF00731751