“…To impart viscous paste-forming properties to the polymer mixture, fuel oil with a boiling point of more than 350 °С, obtained during the distillation processing of oil from the Kumkolskoe field, was used. As is known from our previous studies [6,[28][29][30][31], fuel oil was used not only as a paste-forming agent, but also as an additional source of hydrocarbons and hydrogen necessary for the hydrogenation reaction to proceed. In order to determine the composition, structure, morphology and adsorption properties of the studied catalysts, such physico-chemical methods of analysis as X-ray fluorescence, IR spectroscopy, Scanning Electron Microscopy (SEM), adsorption nitrogen porometry (BET), X-ray Diffraction analysis (XRD), thermogravimetric analysis (TGA) and differential thermogravimetric analysis (DTGA) were used.…”