The influence of remanent coke content on the performances of the additived cracking catalyst

This paper presents the influence of remanent coke content in one industrial catalyst -USY type-single and additived with a shape selective zeolite MCM-22 (synthesised by authors)for the increasing of gas production, required as components of reformulated gasoline. The experiments focused the dependence of gas, gasoline and coke yield resulted in reaction versus remanent coke content, at temperatures of 487 and 500degreesC and space velocities between 12 and 20 h(-1), for USY catalyst and for this industrial catalyst additived with MCM-22.