Dehydrocyclization process for producing a high octane gasoline and aromatics

Claim 1

IN A PROCESS FOR CATALYTIC REFORMING WHEREIN A C7 HYDROCARBON-CONTAINING FRACTION SEPARATED FROM NATURAL GAS LIQUID IS PASSED INTO A FIRST REFORMING ZONE UNDER REFORMING CONDITIONS IN THE PRESENCE OF HYDROGEN TO PRODUCE A FIRST EFFLUENT CONTAINING HYDROGEN, LIGHT HYDROCARBONS AND GASOLINE HYDROCARBONS, SAID EFFLUENT BEING SEPARATED INTO A FIRST STEAM CONTAINING C4 AND LIGHTER MATERIALS, A SECOND STREAM CONTAINING GASOLINE HYDROCARBONS, A THIRD STREAM CONTAINING AROMATIC HYDROCARBONS, A FOURTH STREAM CONTAINING METHYLCYCLOPENTATE AND CYCLOHEXANE, AND A FIFTH STREAM CONTAINING C7 PARAFFINS, THE IMPROVEMENT WHICH COMPRISES PASSING A HIGH END-POINT NAPHTHA FRACTION TOGETHER WITH SAID FIFTH STREAM TO A SECOND REFORMING ZONE UNDER REFORMING CONDITIONS IN THE PRESENCE OF HYDROGEN TO PRODUCE A SECOND EFFLUENT CONTAINING HYDROGEN, LIGHT HYDROCARBONS AND GASOLINE A C4 AND LIGHTER AND SEPARATING FROM SAID SECOND EFFLUENT A C4 AND LIGHER AND A HIGH-QUANTITY GASOLINE HYDROCARBON FRACTION.