Hydrocarbon conversion process

Claim 1

A PROCESS FOR CONVERTING A FEEDSTOCK CONSISTING ESSENTIALLY OF A DISTILLATE GAS OIL TO HIGH-OCTANE GASOLINE, SAID FEEDSTOCK BOILING ABOVE THE GASOLINE RANGE AND BELOW 1050*F. AND CONTAINING SUBSTANTIAL AMOUNTS OF AN IMPURITY SELECTED FROM THE CLASS CONSISTING OF ORGANIC SULFUR COMPOUNDS AND ORGANIC NITROGEN COMPOUNDS, WHICH COMPRISES FIRST SUBJECTING SAID FEEDSTOCK TO HYDROFINING IN THE PRESENCE OF A FIXED BED OF COBALT MOLYBDATE CATALYST SUPPORTED ON A CARRIER WHICH IS ESSENTIALLY ACTIVATED ALUMINA, AT A SPACE VELOCITY BETWEEN ABOUT 0.5 AND 7.0, IN THE PRESENCE OF AT LEAST ABOUT 400 S.C.F. OF HYDROGEN PER BARREL OF FEED, AND AT A PRESSURE-TEMPERATURE COMBINATION FALLING WITHIN THE POLYGON DEFINED BY THE RECTANGULARCOORDINATE LINES, P=750, P=4,000, T=740, T=825, AND P=26.6T-19,920, WHERE P IS PRESSURE IN P.S.I.G. AND T IS TEMPERATURE IN *F., THEREBY EFFECTING SUBSTANTIAL DESULFURIZATION, DENITROGENATION, AND PARTIAL HYDROGENATION OF AROMATICS WITH RESULTANT PRODUCTION OF A SMALL QUANTITY OF GASOLINE, SAID GASOLINE BEING DERIVED SUBSTANTIALLY EXCLUSIVELY FROM THE DECOMPOSITION OF ORGANIC SULFUR AND NITROGEN COMPOUNDS, FRACTIONATING THE PRODUCT FROM SAID HYDROFINING STEP TO RECOVER A GASOLINE-BOILING-RANGE MATERIAL AND A GAS OIL RESIDUE, SUBJECTING SAID GASOLINE FRACTION TO CATALYTIC REFORMING TO IMPROVE THE OCTANE RATING THEREOF, AND SUBJECTING SAID GAS OIL RESIDUE TO CATALYTIC CRACKING TO PRODUCE A HIGH OCTANE CRACKED GASOLINE.