Abstract：To investigate the structure-activity relationship between the pore structure of catalysts and the product distribution of hydrogenation reactions over hydrotreating catalysts, two hydrotreating catalysts with different pore structures were prepared in this work. Their main physicochemical properties were characterized, and the influence of the pore structure of the two catalysts on the product distribution of hydrogenation reactions was studied. The results showed that the small-pore catalyst (CAT-S) exhibited better sulfur and nitrogen removal efficiencies: its desulfurization rate and denitrogenation rate were 2.72 percentage points and 12.14 percentage points higher than those of the large-pore catalyst (CAT-L), respectively. Among the hydrogenated products obtained over the two catalysts, the reduction was dominated by naphthalene-type bicyclic aromatic hydrocarbons (a decrease of approximately 85.0%). CAT-S exhibited superior aromatic saturation capacity, showing much stronger hydrogenation activity toward bicyclic and higher polycyclic aromatics than CAT-L. Its polycyclic aromatic saturation rate (69.3%) was 4.8 percentage points higher than of CAT-L.
MU Fujun,SUI Baokuan,LIU Wenjie et al. Influence of Pore Structure on Catalytic Hydrogenation Performance and Product Distribution of Catalysts[J]. Chemical Reaction Engineering and Technology, 2026, 42(2): 131-136.
