The sulfur content of liquid cracking products, especially the cracked
gasoline, is reduced in a catalytic cracking process employing a cracking
catalyst containing a high content of vanadium. The cracking process
involves introducing at least one vanadium compound into a
hydrocarbon-sulfur containing feedstock to be charged to a fluid
catalytic cracking reactor operating under steady state conditions and
containing an equilibrium fluid cracking catalyst inventory within the
reactor. The amount of sulfur in the liquid products, in particular
gasoline and LCO fractions, is reduced as a result of the increased
vanadium content on the equilibrium catalyst. Advantageously, sulfur
reduction is achieved even in the presence of other metal contaminants,
such as nickel and iron, on the equilibrium catalyst.