Hydrocracking of Vacuum Gas Oil on NiMo/US Y Catalysts with Different Acidity

A bench-scale experimental unit based on a completely mixed Robinson-Mahoney reactor with saturated liquid phase was used to study the hydrocracking of a light vacuum gas oil on two base metal sulfide containing acid catalysts, characterized by their textural properties and NH₃-TPD acidity. The reactor effluent was analyzed in great detail by means of on-line GC and by GC-MS. That allowed the reaction scheme to be expressed at the level required by the kinetic analysis in terms of the fundamental Single Event Kinetics approach and thus drastically  reduce the number of kinetic parameters to be determined from the experimental data.