Oxidative desulphurisation of oil using composite materials based on carbon black and transition metals
N. S. KOBOTAEVA1, O. S. ANDRIENKO2
1Institute of Petroleum Chemistry, Siberian Branch of the Russian Academy of Sciences, Tomsk, Russia
2V.E. Zuev Institute of Atmospheric Optics, Siberian Branch of the Russian Academy of Sciences, Tomsk, Russia
Keywords: oxidation of sulphur-containing compounds of oil, catalysts, composite materials, transition metals
Abstract
Composite metal-carbon material based on technical carbon and metals (NiCo) was created, its physicochemical and catalytic properties in the oxidative desulphurisation of oil were studied. It has been established that the process of oil desulphurisation can be carried out under sufficiently mild conditions: temperature 60 °C, process time 90 min, catalyst content 1-1.3 wt%, the molar ratio of sulphur feedstock/oxidizer = 1 : 4. A more effective extraction system for extracting oxidised sulphur compounds from oil is a mixture of dimethylformamide (DMF) and water at the volume ratio of 9 : 1. In this case, it is possible to achieve a high degree of sulphur removal from oil - more than 70 %.
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