Pulverized fuel gasifier using exhaust of steam powered pulverizer as fuel carrier medium

Claim 1

IN THE METHOD FO CONTINUOUSLY PRODUCING A SYNTHESIS GAS BY INTRODUCING, INTO A CONFINED REACTION ZONE, SOLID CARBON-CONTAINING FUEL IN THE PULVERIZED STATE, FREE-OXYGEN CONTAINING GAS IN AN AMOUNT LESS THAN THAT REQUIRED FOR COMPLETE COMBUSTION OF THE FUEL, AND SUPERHEATED STEAM, EFFECTING IN SUCH CONFINED ZONE AN INITIAL PREPONDERANTLY EXOTHERMIC REACTION OF THE FUEL, GAS, AND STEAM TO ELEVATE THE TEMPERATURE LEVEL OF THE REACTANTS TO A VELUE WITHIN THE OPTIMUM TEMPERATURE RANGE FOR THE ENDOTHERMIC REACTION OFTHE STEAM WITH THE PRODUCTS OF SUCH PREPONDERANTLY EXOTHERMIC REACTION, COMPLETING A PREPONDERANTLY ENDOTHERMIC SYNTHESIS GAS REACTION AS A STREAM OF GASEOUS PRODUCTS OF SUCH PREPONDERANTLY EXPTHERMIC REACTION, STEAM, AND ANY UNREACTED FUEL PARTICLES IS CONTINUOUSLY WITHDRAWN FROM SUCH ZONE, AND COOLING THE RESULTANT SYNTHESIS GAS: THE IMPROVEMENT COMPRISING EFFECTING A TRANSFER OF HEAT FROM THE MAJOR PORTION OF SUCH SYNTHESIS GAS INTO A CONFINED BODY OF WATER TO GENERATE SATURATED STEAM; UTILIZING ENERGY FROM AT LEAST A PORTION OF SUCH SATURATED STEAM TO PULVERIZE THE SOLID FUEL WHILE MAINTAINING SUCH SATURATED STEAM OUT OF CONTACT WITH THE SOLID FUEL; ADDING HEAT TO THE SATURATED STEAM FROM WHICH ENERGY HAS BEEN SO EXTRACTED BY FURTHER HEAT TRANSFER FROM SUCH MAJOR PORTION OF THE SYNTHESIS GAS TO SUPERHEAT THE STEAM; AND UTILIZING THE SUPERHEATED STEAM TO CONVEY THE PULVERIZED FUEL IN SUSPENSION INTO SUCH CONFINED REACTION ZONE TO PROVIDE THE SUPERHEATED STEAM REQUIREMENTS FOR THE SYNTHESIS GAS PRODUCTION.