Petroleum refining process

Claim 1

A PETROLEUM TREATING PROCESS WHICH COMPRISES FRACTIONATING AN ASPHALTIC CRUDE OIL TO PRODUCE A FIRST NAPHTHA FRACTION AND A LONG RESIDUUM, SUBJECTING SAID LONG RESIDUUM TO HIGH TEMPERATURE VACUUM DISTILLATION TO YIELD A SECOND NAPHTHA FRACTION AND A SHORT RESIDUUM, SOLVENT DEASPHALTING SAID SHORT RESIDUUM TO YIELD AN ASPHALT FRACTION AND A DEASPHALTED OIL, HYDROGENATING SAID DEASPHALTED OIL, CATALYTICALLY CRACKING THE RESULTING HYDROGENATED DEASPHALTED OIL TO YIELD A CATALYTIC CRACKED NAPHTHA FRACTION, COMBINING SAID CATALYTIC CRACKED NAPHTHA FRACTION AND SAID SECOND NAPHTHA FRACTION, HYDROGENATING THE RESULTING COMBINED NAPHTHA FRACTIONS, COMBINING THE RESULTING COMBINED HYDROGENATED NAPHTHA FRACTIONS AND SAID FIRST NAPTHA FRACTION AND CATALYTICALLY REFORMING THE SAME WITH THE PRODUCTION OF HYDROGEN SUBJECTING THE RESULTING REFORMATE TO CONTACT WITH A LIQUID SELECTIVE SOLVENT TO SEPARATE AS EXTRACT THE MORE AROMATIC HYDROCARBONS THEREFROM AND TO YIELD A PARAFFINIC RAFFINATE, RETURNING SAID PARAFFINIC RAFFINATE TO THE AFORESAID CATALYTIC REFORMING OPERATION, RECOVERING THE HYDROGEN PRODUCED DURING THE AFORESAID CATALYTIC REFORMING OPERATION AND EMPLOYING THE HYDROGEN IN THE AFORESAID HYDROGENATING OPERATIONS.