Conversion process for the production of high octane number gasoline components

Claim 1

A PROCESS FOR THE PRODUCTION OF HIGH OCTANE NUMBER GASOLINE COMPONENTS WHICH COMPRISES CATALYTICALLY CRACKING A HYDROGEN OIL TO PRODUCE A CRACKED PRODUCT INELUDING A LIGHT HYDROCARBON FRACTION HAVING AN ISO- TO NORMAL BUTYLENE RATIO OF AT LEAST ABOUT 0.8:1 AND HAVING AN ISOBUTANE TO OLEFIN RATIO OF LESS THAN 1:1, SEPARATING SIAD FRACTION INTO A FIRST PORTION AND A SECOND PORTION, HYDROGENATING IN THE PRESENCE OF FREE HYDROGEN SAID FIRST PORTION OF SAID FRACTION TO OBTAIN ISOBUTANE AND NORMAL BUTANE ND RECOMBINING THE HYDROGENATED FIRST PORTION WITH SAID UNHYDROGENATED SECOND PORTION SO THAT THE RECOMBINED FIRST AND SECOND PORTIONS HAVE A MOLAR RATIO OF ISOBUTANE TO OLEFIN OF AT LEAST 1.05:1, RECOMBINING THE PORTIONS AND ALKYLATING IN AN ALKYLATION ZONE THE RECOMBINED FRACTION BY CONTACT WITH A MINERAL ACID ALKYLATION CATALYST AT ALKYLATION CONDITIONS WHEREBY ALKYLATE IS FORMED, AND RECOVERING NORMAL BUTANE FROM SAID ALKYLATION ZONE.