Formation, physicochemical, and catalytic properties of the Mo-containing hydrotreatment catalysts on various supports. IV: The activity of the catalysts for the hydrotreatment of black oil

The activity and selectivity of the Mo-Ni catalysts prepared by the impregnation of supports (γ-Al2O3, hydrated titanium dioxide (HTD), and palygorskite-montmorrilonite clay (PMC)) are studied in the reactions of black oil hydrotreatment. The alumina support provides a higher catalytic activity in the hydrogenation of aromatics. The highest efficiency in desulfurization and demetalation of raw materials is achieved when hydrated titanium dioxide is used as a support. A low efficiency of the PMC-based catalyst is likely explained by the aggregation of the active component during hydrotreatment. The PMC support can be used as an additive to γ-Al2O3. Possible reasons for the dependence of the catalytic activity on the support are considered for various reactions.