Destructive hydrogenation of heavy cycle oils

Claim 1

PROCESS FOR THE CONVERSION OF HEAVY CATALYTICALLY CRACKED CYCLE OIL BY DESTRUCTIVE HYDROGENATION WHICH COMPRISES CONTACTING A HEAVY CATALYTICALLY CRACKED CYCLE OIL HAVING AN INITIAL BOILING POINT OF AT LEAST 260* C. WHILE MAINTAINING AT LEAST A MAJOR PROPORTION IN THE LIQUID PHASE, IN THE PRESENCE OF HYDROGEN AND AT A PRESSURE OF AT LEAST 100 ATM. AND A TEMPERATURE BETWEEN ABOUT 425 AND 500* C., WITH A CATALYST COMPRISING COBALT AND MOLYBDENUM IN A FORM TAKEN FROM THE GROUP CONSISTING OF THE FREE METALS, OXIDES SULFIDES AND MIXTURES THEREOF, AND AT LEAST 0.5% OF CHEMICALLY COMBINED FLUORINE, ON A CARRIER COMPRISING AT LEAST A MAJOR PROPORTION OF ALUMINA, THE AMOUNT OF THE TOTAL OF THE COBALT AND MOLYBDENUM BEING FROM 5 TO 10% BY WEIGHT OF THE CATALYST BASED ON THE FREE METALS, AND THE ATOMIC RATIO OF COBALT TO MOLYBDENUM BEING FROM 1:10 TO 7:10.