Method in pyrolyzing and burning and a shaft furnace for the execution thereof

Claim 2

IN A METHOD OF PYROLYZING AND SUBSEQUENTLY BURNING MATERIALS CONTAINING ORGANIC MATTER SUCH AS SHALE COKE INVOLVING THE STEPS OF (A) BURNING A PYROLYSIS RESIDUE FUEL BED IN A COMBUSTION CHAMBER WITH THE AID OF COMBUSTION AIR INTRODUCED THEREINTO AND (B) HEATING A CHARGE OF SAID MATERIAL CONTAINING ORGANIC MATTER IN AN ASSOCIATED PYROLYSIS CHAMBER BY MEANS OF HEAT DERIVED FROM SAID COMBUSTION OF SUCH PYROLYSIS RESIDUE, THE IMPROVEMENT WHICH CONSISTS IN REGULATING THE TEMPERATURE OF THE COMBUSTION BY THE COMBINED STEPS OF INTRODUCING AN ADDED FLUID FUEL INTO THE PYROLYSIS RESIDUE FUEL BED WHILE AT THE SAME TIME PASSING A COOLING MEDIUM IN INDIRECT HEAT-EXCHANGING RELATION THROUGH SAID BED.

Claim 3

A PYROLYSIS FURNACE COMPRISING A GENERALLY UPRIGHT COMBUSTION SHAFT, AN ELONGATED GENERALLY UPRIGHT RETORT WITHIN THE SHAFT THE LOWER END OF SAID RETORT TERMINATING ABOVE THE LOWER END OF THE SHAFT, A COMBUSTION CHAMBER IN THE LOWER PART OF THE SHAFT, SAID RETORT HAVING AN OUTLET ADJACENT ITS LOWER END FOR PASSAGE OF PYROLYSIS RESIDUES FROM SAID RETORT INTO SAID COMBUSTION CHAMBER FORMING A SOLID FUEL PORTION OF SAID COMBUSTION CHAMBER, A PASSAGEWAY FOR COMBUSTION AIR INTO THE LOWER PART OF SAID COMBUSTION CHAMBER, A CONTROLLABLE FLUID FUEL SUPPLY MEANS EXTENDING INTO SAID SOLID FUEL PORTION OF THE COMBUSTION CHAMBER, AND A COOLING MEDIUM CONDUIT ARRANGED WITHIN SAID COMBUSTION CHAMBER AND BENEATH SAID RETORT OPENING.

Claim 4

A PYROLYSIS FURNACE COMPRISING A GENERALLY UPRIGHT COMBUSTION SHAFT, AN ELONGATED GENERALLY UPRIGHT RETORT WITHIN THE SHAFT THE LOWER END OF SAID RETORT TERMINATING ABOVE THE LOWER END OF THE SHAFT, A COMBUSTION CHAMBER IN THE LOWER PART OF THE SHAFT, SAID RETORT HAVING AN OUTLET ADJACENT ITS LOWER END FOR PASSAGE OF PYROLYSIS RESIDUES FROM SAID RETORT INTO SAID COMBUSTION CHAMBER FORMING A SOLID FUEL PORTION OF SAID COMBUSTION CHAMBER, A PASSAGEWAY FOR COMBUSTION AIR INTO THE LOWER PART OF SAID COMBUSTION CHAMBER, A CONTROLLABLE FLUID FUEL SUPPLY MEANS EXTENDING INTO SAID SOLID FUEL PORTION OF THE COMBUSTION CHAMBER, AND A COOLING MEDIUM CONDUIT ARRANGED WITHIN SAID COMBUSTION CHAMBER AND BENEATH SAID RETORT OPENING.