The structural composition of fresh and aged (under model conditions) GK-grade transformer oil and petrolatum oil is studied by UV and 1 N NMR spectroscopy. Comparative experimental studies showed that sediment formation in transformer oil depends essentially on aromatic compounds rather than oxidized compounds, i.e. after reaching a certain concentration arenes coagulate forming solid particles that precipitate. It is concluded that in transformer oil, the aromatic hydrocarbons must be limited to the minimal content possible.
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The study was performed with financial assistance from the Ministry of Education and Science of Russia (Government Budget Scientific and Research Grant No. 7.4325.2011).
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 6, pp. 37 – 39, November – December, 2013.
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Turanova, O.A., Bikkinyaeva, Y.K., Gafiyatullin, L.G. et al. Role of Aromatic Hydrocarbons in Sediment Formation in Transformer Oil. Chem Technol Fuels Oils 49, 517–521 (2014). https://doi.org/10.1007/s10553-014-0478-4
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DOI: https://doi.org/10.1007/s10553-014-0478-4