Hydrocarbon conversion process

Claim 1

A METHOD FOR CATALYST CRACKING CONVERSION OF HIGH BOILING LIQUID HYDROGENCHARGES CONTAINING CONSTITUENTS WHICH UNDERGO PYROLYTIC CRACKING AND COKING AT TEMPERATURES REQUIRED TO VAPORIZE THE SAME UNDER PRESSURES DESIRABLE FOR CATALYST CRACKING CONVERSION THEREOF WHICH METHOD COMPRISES, HEATING THE HYDROCARBON CHARGE STOCK TO A TEMPERATURE SUFFICIENT TO VAPORIZE A PORTION THEREOF BUT INSUFFICIENT TO CAUSE SUBSTANTIAL CRACKING OR COKING THEREOF, PASSING THE HEATED CHARGE INTO A PHASE SEPARATION ZONE MAINTAINED AT A PRESSURE SUBSTANTIALLY ABOVE THE DESIRED CATALYTIC CONVERSION PRESSURE AND EFFECTING SEPARATION OF VAPORIZED AND NON-VAPORIZED FRACIONS OF THE CHARGE, PASSING THE NON-VAPORIZED FRACTION TO A DISTILLATION ZONE MAINTAINED UNDER A VACUUM SO AS TO EFFECT FURTHER VAPORIZATION TO PROVIDE A VACUUM DISTILLATE VAPOR STREAM AND A HEAVY LIQUID FRACTION, WITHDRAWING THE LIQUID FRACTION FROM THE OPERATION, SUPPLYING A CRACKING CATALYST IN PALPABLE PARTICULATE FORM AT A TEMPERATURE SUBSTANTIALLY BELOW THE CONDENSATION TEMPERATURE OF SAID VACUUM DISTILLATE INTO A CONFINED CONDENSING ZONE, PASSING THE VACUUM DISTILLATE THROUGH A COMMUNICATING PASSAGE FROM THE DISTILLATION ZONE TO SAID CONDENSING ZONE TO BECOME MIXED WITH AND CONDENSED ON SAID CATALYST, WHEREBY THE VACUUM IS MAINTAINED IN SAID DISTILLATION ZONE, FLOWING THE CATALYST BEARING THE CONDENSED LIQUID HYDROCARBONS DOWNWARDLY FROM SAID CONDENSING ZONE AS A SUBSTANTIALLY COMPACT CONFINED COLUMN OF GRAVITATING CATALYST, SAID LEG BEING OF SUFFICIENT LENGTH TO FORCE THE CATA-

Claim 2

A METHOD FOR CATALYST CRACKING CONVERSION OF HIGH BOILING LIQUID HYDROGENCHARGES CONTAINING CONSTITUENTS WHICH UNDERGO PYROLYTIC CRACKING AND COKING AT TEMPERATURES REQUIRED TO VAPORIZE THE SAME UNDER PRESSURES DESIRABLE FOR CATALYST CRACKING CONVERSION THEREOF WHICH METHOD COMPRISES, HEATING THE HYDROCARBON CHARGE STOCK TO A TEMPERATURE SUFFICIENT TO VAPORIZE A PORTION THEREOF BUT INSUFFICIENT TO CAUSE SUBSTANTIAL CRACKING OR COKING THEREOF, PASSING THE HEATED CHARGE INTO A PHASE SEPARATION ZONE MAINTAINED AT A PRESSURE SUBSTANTIALLY ABOVE THE DESIRED CATALYTIC CONVERSION PRESSURE AND EFFECTING SEPARATION OF VAPORIZED AND NON-VAPORIZED FRACIONS OF THE CHARGE, PASSING THE NON-VAPORIZED FRACTION TO A DISTILLATION ZONE MAINTAINED UNDER A VACUUM SO AS TO EFFECT FURTHER VAPORIZATION TO PROVIDE A VACUUM DISTILLATE VAPOR STREAM AND A HEAVY LIQUID FRACTION, WITHDRAWING THE LIQUID FRACTION FROM THE OPERATION, SUPPLYING A CRACKING CATALYST IN PALPABLE PARTICULATE FORM AT A TEMPERATURE SUBSTANTIALLY BELOW THE CONDENSATION TEMPERATURE OF SAID VACUUM DISTILLATE INTO A CONFINED CONDENSING ZONE, PASSING THE VACUUM DISTILLATE THROUGH A COMMUNICATING PASSAGE FROM THE DISTILLATION ZONE TO SAID CONDENSING ZONE TO BECOME MIXED WITH AND CONDENSED ON SAID CATALYST, WHEREBY THE VACUUM IS MAINTAINED IN SAID DISTILLATION ZONE, FLOWING THE CATALYST BEARING THE CONDENSED LIQUID HYDROCARBONS DOWNWARDLY FROM SAID CONDENSING ZONE AS A SUBSTANTIALLY COMPACT CONFINED COLUMN OF GRAVITATING CATALYST, SAID LEG BEING OF SUFFICIENT LENGTH TO FORCE THE CATA-