Patent ID: 6024032
Filing Date: 2000-02-15
Classification: C10B,C10J,F23G,F27D,Y10S

Abstract:
A process for the production of heat energy from solid carbonaceous fuels which process comprises:heating a carbonaceous fuel in at least one first zone to a temperature which is sufficiently high to substantially pyrolyse the fuel anaerobically producing a char and pyrolysis gases,transferring the char resulting from the pyrolysis to a second zone which is segregated from the first zone or zones,subjecting the char to gasification in the second zone by introducing primary combustion air to produce off gases and ash,subjecting the off gases from the second zone and the pyrolysis gases from the first zone or zones to secondary combustion, andremoving the ash from the bottom of the second zone, wherein the first zone or zones are heated mainly by radiant heat derived directly from said secondary combustion.