A comparative gas oil hydroprocessing study of alumina, carbon, and carbon-covered alumina supported nickel-molybdenum catalysts: effect of quinoline, thiophene, and vanadium spiking

Catalysts with 3-15 wt%NiO−MoO 3 supported on alumina, carbon-covered alumina, and carbon were used to hydroprocess gas oil spiked with quinoline, thiophene and vanadium to give an insight into the relationship between the support and deactivation. Experiments were carried out in a batch reactor at 410°C and 1000 psi initial H 2 pressure. It was found that N, S, and V compounds in the feed suppress the hydrogen uptake by gas oil hydroprocessed with alumina or carbon-covered alumina supported catalysts but carbon supported catalysts are insensitive to these compounds