Abstract
A study of the hydrocarbon-type content of the base summer diesel fuels of various oil refineries in Russia was carried out using the methods of gas chromatography and high-performance liquid chromatography. It is shown that the experimental results obtained using these methods, namely the content of normal paraffinic, the total content of paraffin-naphthenic and aromatic hydrocarbons, do not provide sufficient information to predict the physicochemical and performance properties of diesel fuels. The method of two-dimensional gas chromatography-mass spectrometry was applied for a more detailed study of the hydrocarbon composition of diesel fuels, which made it possible to determine the ratio of normal and isoalkanes, the content of mono-, bi- and polycyclic naphthenic and aromatic hydrocarbons, and to explain the differences between fuels with similar performance characteristics.
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