Production of motor fuel

Claim 1

A PROCESS FOR THE PRODUCTION OF HIGH QUALITY MOTOR GASOLINE FROM THE HIGH BOILING POLYMER WHICH IS FORMED BY THERMAL POLYMERIZATION OF CERTAIN HIGHLY UNSATURATED COMPONENTS OF STEAM CRACKED GASOLINE IN SUBJECTING STEAM CRACKED GASOLINE TO A LOW TEMPERATURE THERMAL POLYMERIZATION TREATMENT TO STABILIZE IT AGAINST GUM FORMATION, AND WHICH POLYMER IS REMOVED FROM THE TREATED GASOLINE AS A WASTE PRODUCT AMOUNTING TO BETWEEN ABOUT 10% AND 16% BY WEIGHT OF THE STEAM CRACKED GASOLINE, WHICH PROCESS COMPRISES CATALYTICALLY HYDROGENATING AT LEAST PART OF SAID POLYMER AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 650*F. TO 850*F., A PRESSURE IN THE RANGE OF FROM ABOUT 500 P. S. I. G. TO ABOUT 1000 P. S. I. G., A SPACE VELOCITY NOT IN EXCESS OF ABOUT 10 V./V./HR. OF LIQUID FEEDSTOCK, AND A GAS RECYCLE RATE NOT IN EXCESS OF ABOUT 10,000 S. C. F./B., AND FRACTIONATING THE RESULTING HYDROGENATED PRODUCT TO YIELD SAID HIGH QUALITY MOTOR GASOLINE.