Aquathermolysis of heavy oil using nano oxides of metals

Abstract

© 2017 Elsevier B.V.The effect of suspended nanoparticles of magnetite and hematite on thermal decomposition of heavy oil at a temperature of 360 °C in a vapor medium at different system pressures is revealed. The preferential destruction reactions of macromolecular components of oil, which lead to the reduction of oil viscosity, are established. The effect of zinc and aluminum oxides as additives initiating cracking of hydrocarbon bonds is studied. The changes in structure of the component of the converted products, as compared to the original crude oil, are obtained. Conducting the process in the presence of additives at a pressure of 11 MPa led to the reduction of the aromaticity of the final products, increase in the yield of hydrocarbon oils and the formation of gaseous products. It is observed that the amount of asphalt-resinous substances is reduced as the result of their conversion in the presence of additives. Rheological curves of conversion products are obtained, based on them the peculiarities of viscosity-temperature characteristics change can be shown.