Shale oil refining process

Claim 1

IN A PROCESS FOR RECOVERING FROM RAW SHALE OIL AN OIL SUITABLE FOR CATALYTIC CONVERSION, THE IMPROVEMENT WHICH COMPRISES SEGREGATING A RAW SHALE OIL INTO A LOW BOILING FRACTION AND A HIGH BOILING FRACTION, SAID HIGH BOILING FRACTION CONTAINING CONSTITUENTS BOILING ABOVE ABOUT 900*F., COKING SAID HIGH BOILING FRACTION IN A COKING ZONE AND RECOVERING THEREFROM HYDROCARBONACEOUS PRODUCT BOILING BELOW ABOVE 900*F., PASSING SAID RECOVERED HYDROCARBONACEOUS PRODUCT AND AT LEAST A PORTION OF SAID LOW BOILING FRACTION TO A HYDROTREATING ZONE, MAINTAINING MILD HYDROTREATING CONDITIONS INCLUDING A TEMPERATURE IN THE RANGE OF ABOUT 650* TO 900*F. AND A PRESSURE IN THE RANGE OF ABOUT 50 TO 175 P.S.I.G. IN SAID ZONE, TO OBTAIN A HYDROTREATED PRODUCT PASSING THE HYDROTREATED PRODUCT TO A PRECIPITATION ZONE, SAID HYDROTREATED PRODUCT HAVING ESSENTIALLY THE SAME HYDROGEN TO CARBON RATIO AS THE FEED TO SAID HYDROTREATING ZONE, CONTACTING SAID HYDROTREATED PRODUCT WITH ANHYDROUS HCL IN SAID PRECIPITATION ZONE, AND RECOVERING A HYDROCARBON PRODUCT OF SUPERIOR CRACKING CHARACTERISTICS.