Abstract
Structural characteristics of catalytic systems obtained by modification of activated carbon with Al and Ni metal oxides have been studied. Modification of activated carbon was carried out by impregnating them with metal hydroxides from salt solutions with a Ni+2/Al+3 ratio of 2:1 and 3:1, followed by calcination in a stream of nitrogen and hydrogen until oxide phaseswere formed. With an increase in the ratio of metal cations in the impregnating solution in activated carbon, the specific surface area and the number of micropores increase, and the total volume and average pore diameter. Ignition in a hydrogen flowat the final stage of activated carbon modification leads to a decrease in the pore space and a decrease in the specific surface area of the catalytic system. The optimal combination of specific surface values and maximum average pore diameters for the processing of heavy oil residue have Ni/Al (2:1) catalytic systems obtained in nitrogen and hydrogen.
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