Reforming gasoline

Claim 1

THE METHOD OF UPGRADING NAPHTHA TO PROVIDE HIGH BOILING AROMATIC SOLVENT, UPGRADED GASOLINE AND GASEOUS HYDROCARBONS WHICH METHOD COMPRISES THE STEPS OF: FRACTIONALLY DISTILLING A NAPHTHA HAVING AN INITIAL BOILING POINT WITHIN THE RANGE FROM ABOUT 70*F. TO ABOUT 100*F. AND AN END BOILING POINT WITHIN THE RANGE FROM ABOUT 360*F TO ABOUT 390*F. TO SEPARATE A LOW BOILING FRACTION HAVING AN INITIAL BOILING POINT WITHIN THE RANGE OF FROM ABOUT 70*F. TO ABOUT 100*F. AND AN END BOILING POINT WITHIN THE RANGE FROM ABOUT 160* TO ABOUT 180*F. AND A HIGH BOILING FRACTION HAVING AN INITIAL BOILING POINT NEAR SAID END BOILING POINT OF THE LOW BOILING FRACTION AND HAVING AN END BOILING POINT WITHIN THE RANGE FROM ABOUT 360*F. TO ABOUT 309*F., HYDROGENATIVELY AROMATIZING SAID HIGH BOILING FRACTION IN THE PRESENCE OF SEVERAL MOLS OF HYDROGEN PER MOL OF HYDROCARBON AT SUPERATMOSPHERIC PRESSURE AT A TEMPERATURE WITHIN THE RANGE FROM 875*F. TO 1000*F. OVER A PLATINUM-ALUMINA CATALYST TO FORM A HIGHLY AROMATIC REFORMATE, PARTIALLY CONDENSING THE EFFLUENT FROM THE HYDROGENATIVE AROMATIZING ZONE TO SEPARATE A LIQUID CONSTITUTING FROM ABOUT 20% TO ABOUT 33% OF THE REFORMATE, MIXING THE REMAINING PORTION OF THE REFORMATE WITH SAID LOW-BOILING NAPHTHA FRACTION, AND PASSING SAID MIXTURE THROUGH A THERMAL REFORMING ZONE AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 1025*F. TO 1125*F. AT A PRESSURE OF FROM ABOUT 40 TO ABOUT 50 ATMOSPHERES AT A SOAKING FACTOR WITHIN THE RANGE FROM ABOUT 1 TO 10CU. FT./BSD, WITHDRAWING AND IMMEDIATELY QUENCHING AND COOLING THE EFFLUENT FROM THE THERMAL REFORMING ZONE BY CONTACT WITH SAID HYDROCARBON FRACTION SEPARATED BY THE PARTIAL CONDENSATION OF THE EFFLUENT FROM THE HYDROGENATIVE AROMATIZING ZONE, AND PASSING THE THUS PREPARED MIXTURE OF THE QUENCH OIL AND THE EFFLUENT FROM THE THERMAL REFORMING ZONE TO A FRACTIONAL DISTILLATION STEP FROM WHICH THERE ARE RECOVERED PRODUCTS COMPRISING A MINOR AMOUNT OF HEAVY AROMATIC SOLVENT, AND A MAJOR AMOUNT OF NAPHTHA HAVING AN F-1 OCTANE NUMBER WITHIN THE RANGE FROM 85 TO 92.

Claim 2

THE METHOD OF UPGRADING NAPHTHA TO PROVIDE HIGH BOILING AROMATIC SOLVENT, UPGRADED GASOLINE AND GASEOUS HYDROCARBONS WHICH METHOD COMPRISES THE STEPS OF: FRACTIONALLY DISTILLING A NAPHTHA HAVING AN INITIAL BOILING POINT WITHIN THE RANGE FROM ABOUT 70*F. TO ABOUT 100*F. AND AN END BOILING POINT WITHIN THE RANGE FROM ABOUT 360*F TO ABOUT 390*F. TO SEPARATE A LOW BOILING FRACTION HAVING AN INITIAL BOILING POINT WITHIN THE RANGE OF FROM ABOUT 70*F. TO ABOUT 100*F. AND AN END BOILING POINT WITHIN THE RANGE FROM ABOUT 160* TO ABOUT 180*F. AND A HIGH BOILING FRACTION HAVING AN INITIAL BOILING POINT NEAR SAID END BOILING POINT OF THE LOW BOILING FRACTION AND HAVING AN END BOILING POINT WITHIN THE RANGE FROM ABOUT 360*F. TO ABOUT 309*F., HYDROGENATIVELY AROMATIZING SAID HIGH BOILING FRACTION IN THE PRESENCE OF SEVERAL MOLS OF HYDROGEN PER MOL OF HYDROCARBON AT SUPERATMOSPHERIC PRESSURE AT A TEMPERATURE WITHIN THE RANGE FROM 875*F. TO 1000*F. OVER A PLATINUM-ALUMINA CATALYST TO FORM A HIGHLY AROMATIC REFORMATE, PARTIALLY CONDENSING THE EFFLUENT FROM THE HYDROGENATIVE AROMATIZING ZONE TO SEPARATE A LIQUID CONSTITUTING FROM ABOUT 20% TO ABOUT 33% OF THE REFORMATE, MIXING THE REMAINING PORTION OF THE REFORMATE WITH SAID LOW-BOILING NAPHTHA FRACTION, AND PASSING SAID MIXTURE THROUGH A THERMAL REFORMING ZONE AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 1025*F. TO 1125*F. AT A PRESSURE OF FROM ABOUT 40 TO ABOUT 50 ATMOSPHERES AT A SOAKING FACTOR WITHIN THE RANGE FROM ABOUT 1 TO 10CU. FT./BSD, WITHDRAWING AND IMMEDIATELY QUENCHING AND COOLING THE EFFLUENT FROM THE THERMAL REFORMING ZONE BY CONTACT WITH SAID HYDROCARBON FRACTION SEPARATED BY THE PARTIAL CONDENSATION OF THE EFFLUENT FROM THE HYDROGENATIVE AROMATIZING ZONE, AND PASSING THE THUS PREPARED MIXTURE OF THE QUENCH OIL AND THE EFFLUENT FROM THE THERMAL REFORMING ZONE TO A FRACTIONAL DISTILLATION STEP FROM WHICH THERE ARE RECOVERED PRODUCTS COMPRISING A MINOR AMOUNT OF HEAVY AROMATIC SOLVENT, AND A MAJOR AMOUNT OF NAPHTHA HAVING AN F-1 OCTANE NUMBER WITHIN THE RANGE FROM 85 TO 92.