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 impregn ation of supports (gamma-Al2O3, hydrated titanium dioxide (HTD), and palygo rskite-montmorrilonite clay (PMC)) are studied in the reactions of black oi l hydrotreatment. The alumina support provides a higher catalytic activity in the hydrogenation of aromatics. The highest efficiency in desulfurizatio n and demetalation of raw materials is achieved when hydrated titanium diox ide is used as a support. A low efficiency of the PMC-based catalyst is lik ely explained by the aggregation of the active component during hydrotreatm ent. The PMC support can be used as an additive to gamma-Al2O3. possible re asons for the dependence of the catalytic activity on the support are consi dered for various reactions.