Process for upgrading a pentane-containing natural gasoline by isomerization and reforming

Claim 1

A PROCESS FOR UP-GRADING A NATURAL GASOLINE CONTAINING PENTANE IN WHICH PROCESS IT IS DESIRED TO OBTAIN HIGH OCTANE VALUE REFORMED GASOLINE PRODUCT FORMED IN A REFORMING ZONE IN THE ABSENCE OF SUBSTANTIAL AMOUNTS OF NORMAL PENTANE CONTAINED IN SAID GASOLINE WHICH COMPRISES IN A FIRST STEP SUBJECTING THE GASOLINE TO CONDITIONS FAVORING PARAFIN ISOMERIZATION REACTIONS THUS PROVIDING FOR THE FORMATION THEREIN OF IMPROVED YIELD OF ISOPENTANE FROM NORMAL PENTANE CONTAINED THEREIN THUS SUBSTANTIALLY REDUCING THE NORMAL PENTANE CONTENT OF SAID NATURAL GASOLINE, REMOVING A SUBSTANTIAL PORTION OF ISOPENTANE FROM THE THUS TREATED GASOLINE THUS OBTAINING A REMAINING GASOLINE SUBSTANTIALLY FREED FROM OBTAINING A REMAINING PENTANE AND THEN SUBJECTING THE REMAINING GASOLINE TO REFORMING CONDITIONS TO REFORM THE SAME.