Process for hydrogen treatment of hydrocarbons

Claim 1

THE PROCESS FOR SUBSTANTIALLY CONVERTING AN APPROXIMATELY 10 TO 50 PERCENT BOTTOMS FRACTION OF A CRUDE PETROLEUM INTO A CATALYTIC CRACKING CHARGE STOCK AND FOR SIMULTANEOUSLY DESULFURIZING SAID BOTTOMS FRACTION WHICH COMPRISES CONTACTING SAID BOTTOMS FRACTION WITH HYDROGEN AT A TEMPERATURE BETWEEN ABOUT 775* AND 880*F., AT A PRESSURE BETWEEN ABOUT 200 AND 2000 P. S. I. G. WHILE IN THE PRESENCE OF A NICKEL OXIDE-TUNGSTEN OXIDE CATALYST, SAID CONTACTING TAKING PLACE UNDER CONDITIONS WHICH RESULT IN SUBSTANTIAL CONVERSION INTO CATALYTIC CRACKING CHARGE STOCK, SAID CONVERSION CONDITIONS BEING A SPACE VELOCITY BETWEEN ABOUT 0.5 AND 1 AND A CONTACT TIME OF BETWEEN ABOUT 4 HOURS AND 16 HOURS, TERMINATING THE CONTACTING, SUBJECTING THE CATALYST UPON WHICH COKE IS DEPOSITED TO COMBUSTION REGENERATION TO REMOVE COKE THEREFROM AND RE-USING THE REGENERATED CATALYST IN SAID HYDROGEN TREATMENT OF SAID BOTTOMS FRACTION.