Coker blow down recovery process

Claim 1

IN A METHOD FOR RECOVERY OF HYDROCARBONS FROM A CHARGE MIXTURE OF HYDROCARBONS OF VARYING DENSITIES AND MOISTURE SUPPLIED DURING A SEPARATION PERIOD AT VARYING TEMPERATURES, THE IMPROVEMENT WHICH COMPRISES SEPARATING HYDROCARBONS OF HIGH LIQUID DENSITIES APPROXIMATING THAT OF WATER IN A FIRST SEPARATION ZONE MAINTAINED AT A TEMPERATURE ABOVE THAT AT WHICH FREE WATER EXISTS IN THE LIQUID PHASE IN SAID FIRST ZONE, DISCHARGING FROM SAID FIRST ZONE A LIQUID PHASE CONTAINING SAID HIGH DENSITY HYDROCARBONS AND A VAPOR PHASE CONTAINING MOISTURE AND LIGHT HYDROCARBONS, CONDENSING AT LEAST A SUBSTANTIAL PART OF SAID VAPOR PHASE AND SEPARATING VAPOR FROM A LIQUID MIXTURE OF WATER AND LIGHT HYDROCARBONS IN A SECOND SEPARATION ZONE, DIRECTING SAID CHARGE MIXTURE TO SAID FIRST ZONE WHEN THE TEMPERATURE OF SAID CHARGES MIXTURE IS SUFFICIENTLY HIGH TO PREVENT CONDENSATION OF WATER IN SAID FIRST ZONE, AND DIRECTING SAID CHARGE MIXTURE TO SAID SECOND ZONE WHEN THE TEMPERAURE OF SAID CHARGE MIXTURE IS NOT SUFFICIENTLY HIGH TO PREVENT CONDENSATION OF WATER IN SAID FIRST ZONE.