Preparation of a jet fuel

Claim 1

A PROCESS FOR THE PRODUCTION OF AN IMPROVED JET FUEL WHICH COMPRISES FRACTIONATING A CRUDE PETROLEUM INTO A FIRST LIQUID FRACTION HAVING A DISTILLATION END JPOINT OF ABOUT 390*F. AND A SECOND LIQUID FRACTION BOILING WITHIN THE RANGE OF ABOUT 390-760*F., REFORMING SAID FIRST LIQUID FRACTION TO PRODUCE A REFORMATE OF INCREASED AROMATIC CONTENT, SEPARATING SAID REFORMATE INTO A PORTION RICH IN AROMATICS AND A NON-AROMATIC PORTION, CONTACTING SAID SECOND LIQUID FRACTION WITH A CRACKING CATALYST UNDER CRACKING CONDITIONS TO PRODUCE A CRACKED PRODUCT, SEPARATING THE CRACKED PRODUCT INTO A C3-C4 OLEFIN-CONTAINING FRACTION AND A CRACKED NAPHTHA FRACTION, SUBJECTING SAID C3-C4 OLEFIN-CONTAINING FRACTION TO POLYMERIZATION CONDITIONS IN THE PRESENCE OF A POLYMERIZATION CATALYST TO PRODUCE A NORMALLYLIQUID POLYMER, COMBINING SAID NORMALLY LIQUID POLYMER AND SAID NON-AROMATIC PORTION, CONTACTING THE COMBINED STEAM WITH A HYDROGENATION CATALYST IN THE PRESENCE OF 5,000-15,000 S.C.F. HYDROGEN PER BARREL UNDER SATURATION CONDITIONS AND RECOVERING A HYDROCARBON FRACTION BOILING IN THE JET FUEL RANGE FROM THE HYDROGENATION PRODUCT.