Chemicals coking quenching system

Claim 1

IN THE COKING OF HYDROCARBONS WHEREIN A GAS-SOLIDS RAPIDLY MOVING GASEOUS SUSPENSION OF INERT SOLIDS AT A TEMPERATURE ABOVE 1200* F. IS PASSED THROUGH AN ELONGATED, CONDUIT-LIKE REACTION ZONE AT A VELOCITY GREATER THAN 20 FT./SEC., WHERIN A HYDROCABON OIL FEED IS INTRODUCED INTO SAID SOLIDS SUSEPNSION AND UPON CONTACT WITH SAID SOLIDS IS CONVERTED INTO LIGHTER GASIFORM MATERIAL AND CARBONACEOUS RESIDUE WICH DESPOSITS ON SAID SOLIDS, AND WHERIN SAID GASIFORM MATERIALS AND SAID HOT SOLIDS ARE SEPERATED IN A GAS-SOLIDS SEPARATION ZONE, THE IMPROVEMENT WHICH COMPRISES SUBJECTING SEPERATED GASIFORM MATERIAL LEAVING SAID SEPERATION ZONE TO A PULRALITY OF QUENCHING STAGES IN SUCCESSION, INJECTING QUENCHING LIQUID INTO EACH OF SAID STAGES IN SUFFICENT AMOUNTS TO BE ONLY PARTIALLY VAPORIZING WHILE LOWERING THE TEMPERATURE OF THE GASIFORM MATERIAL PASING THROUGH EACH OF THE SAID STAGES BY SUBSTANTIALLY EQUAL AMOUNTS OF ABOUT 200 TO 300*F., SAID QUENCHING LIQUID THUS CONDENSING OUT ONLY HIGH BOILING MATERIAL IN SAID STEAM AND DILUTING AND WASHING AWAY THE CONDENSED HIGH BOILING MATERIAL WHILE MAINTAINING THE MAJOR PORTION OF SAID GASIFORM MATERIAL ABOVE ITS DEW POINT.