Method of and apparatus for gasification of pulverized coal

Claim 1

THE METHOD OF CONTINUOUSLY PRODUCING A SYNTHESIS GAS BY THE REACTION AT HIGH TEMPERATURES OF OXYGEN AND STEAM WITH A SOLID FUEL CONTAINING CARBON AND ASH, WHICH COMPRISES INTRODUCTING INTO ONE END OF A LATERALLY CONFINED PDRIMARY ZONE SOLID FUEL IN A PULVERIZED STATE IN SUSPENSION IN A FLUID STREAM OF SUBSTANTIALLY PURE OXYGEN IN AN AMOUNT LESS THAN THAT REQUIRED FOR COMPLETE COMBUSTION OF THE FUEL AND AT LEAST A PORTION OF THE STEAM REQUIRED FOR THE SYNTHESIS REACTION; EFFECTING IN SUCH PRIMARY ZONE A PREPONDERANTLY EXOTHERMIC REACTION OF THE FUEL, OXYGEN, AND STEAM TO ELEVATE THE TEMPERATURE LEVEL OF THE REACTANTS TO A VALUE WITHIN OPTIMUM TEMPERATURE RANGE FOR THE ENDOTHERMIC REACTION OF THE STEAM WITH THE PRODUCT OF SUCH PREPONDERANTLY EXOTHERMIC REACTION AND ABOVED THE FUEL ASH FUSION TEMPERATURE WHILE THE FUEL PARTICLES ARE IN SUSPENSION IN A FLUID STREAM DIDRECTED INUTIALLY TOWARDS A SLAG OUTLET,AT THE OPPOSITE END OF SUCH ZONE AND THEN REVERSELY TOWARDS SUCH ONE END OF SUCH ZONE CONTINUOUSLY WITHDRAWING THE ASH RELEASED FROM THE FUEL DURING SUCH PDREPONDERANTLY EXOTHERMIC REACTION, AS A MOLTEN SLAG THROUGH THE SLEG OUTLET,THE FLUID STREAMS SCRUBBRING THE MOLTEN SLAG FLOWING TOWARDS SUCH MOLTEN SLAG; ACT WITH ANY FUELPARTICLES ENTRAPPED IN SUCH MOLTEN SLAG; WITHDRAWING A STREAM OF GASEOUS PRODUCTS OF SUCH PREPONDERANTLY EXOTHERMIC REACTION, STEAM, AND ANY UNLATERALLY CONFINED TRANSION ZONE AT SUCH ONE END OF THE PRIMARY ZONE HAVING A CROSS SECTIONAL FLOW AREA SUBSTANTIALLY LESS THAN THAT OF THE PRIMARY ZONE THROUGHLY ADMIX THE REACTANTS AND TO INCREASETHE VELOCITY OF SUCH LAST-NAMED STREAM TO PROVIDE A HIGH VELOCITY BARRIER PREVENTING REVERSE FLOW OF THE REACTANTS INTO THE PRIMARY ZONE ; SUPPLYING THE REMAINING PORTION OF THE REACTION STEAM TO SUCH LAST-NAMED STREAM IN INTIMATE MIXING RELATION THEREWITH IN ADVANCE OF THE TRANSITION ZONE FOR THOROUGH ADMIXING IN THE TRANSITION ZONE; AND COMPLETING THE PREPONDERANTLY ENDOTHERMIC SYNTHESIS GAS REACTION AS THE STREAM FLOWS THROUGH A CONFINED SSECONDARY ZONE RECEIVING THE REACTANT FROM SUCH TRANSITION ZONE.

Claim 2

THE METHOD OF CONTINUOUSLY PRODUCING A SYNTHESIS GAS BY THE REACTION AT HIGH TEMPERATURES OF OXYGEN AND STEAM WITH A SOLID FUEL CONTAINING CARBON AND ASH, WHICH COMPRISES INTRODUCTING INTO ONE END OF A LATERALLY CONFINED PDRIMARY ZONE SOLID FUEL IN A PULVERIZED STATE IN SUSPENSION IN A FLUID STREAM OF SUBSTANTIALLY PURE OXYGEN IN AN AMOUNT LESS THAN THAT REQUIRED FOR COMPLETE COMBUSTION OF THE FUEL AND AT LEAST A PORTION OF THE STEAM REQUIRED FOR THE SYNTHESIS REACTION; EFFECTING IN SUCH PRIMARY ZONE A PREPONDERANTLY EXOTHERMIC REACTION OF THE FUEL, OXYGEN, AND STEAM TO ELEVATE THE TEMPERATURE LEVEL OF THE REACTANTS TO A VALUE WITHIN OPTIMUM TEMPERATURE RANGE FOR THE ENDOTHERMIC REACTION OF THE STEAM WITH THE PRODUCT OF SUCH PREPONDERANTLY EXOTHERMIC REACTION AND ABOVED THE FUEL ASH FUSION TEMPERATURE WHILE THE FUEL PARTICLES ARE IN SUSPENSION IN A FLUID STREAM DIDRECTED INUTIALLY TOWARDS A SLAG OUTLET,AT THE OPPOSITE END OF SUCH ZONE AND THEN REVERSELY TOWARDS SUCH ONE END OF SUCH ZONE CONTINUOUSLY WITHDRAWING THE ASH RELEASED FROM THE FUEL DURING SUCH PDREPONDERANTLY EXOTHERMIC REACTION, AS A MOLTEN SLAG THROUGH THE SLEG OUTLET,THE FLUID STREAMS SCRUBBRING THE MOLTEN SLAG FLOWING TOWARDS SUCH MOLTEN SLAG; ACT WITH ANY FUELPARTICLES ENTRAPPED IN SUCH MOLTEN SLAG; WITHDRAWING A STREAM OF GASEOUS PRODUCTS OF SUCH PREPONDERANTLY EXOTHERMIC REACTION, STEAM, AND ANY UNLATERALLY CONFINED TRANSION ZONE AT SUCH ONE END OF THE PRIMARY ZONE HAVING A CROSS SECTIONAL FLOW AREA SUBSTANTIALLY LESS THAN THAT OF THE PRIMARY ZONE THROUGHLY ADMIX THE REACTANTS AND TO INCREASETHE VELOCITY OF SUCH LAST-NAMED STREAM TO PROVIDE A HIGH VELOCITY BARRIER PREVENTING REVERSE FLOW OF THE REACTANTS INTO THE PRIMARY ZONE ; SUPPLYING THE REMAINING PORTION OF THE REACTION STEAM TO SUCH LAST-NAMED STREAM IN INTIMATE MIXING RELATION THEREWITH IN ADVANCE OF THE TRANSITION ZONE FOR THOROUGH ADMIXING IN THE TRANSITION ZONE; AND COMPLETING THE PREPONDERANTLY ENDOTHERMIC SYNTHESIS GAS REACTION AS THE STREAM FLOWS THROUGH A CONFINED SSECONDARY ZONE RECEIVING THE REACTANT FROM SUCH TRANSITION ZONE.

Claim 3

THE METHOD OF CONTINUOUSLY PRODUCING A SYNTHESIS GAS BY THE REACTION AT HIGH TEMPERATURE OF OXYGEN AND STEAM WITH A SOLID DUEL CONTAINING CARBON, WHICH COMPRISES INTRODUCING INTO AND ADJACENT ONE END OF A LATERALLY CONFINED PRIMARY ZONE AND IN A DIRECTION TOWARDS THE OPPOSITE END OF THE ZONE SOLID FUEL IN A PULVERIZED STATE IN SUSPENSION IN A FLUID STREAM OF SUBSTANTIALLY PURE OXYGEN IN AN AMOUNT LESS THAT THAT REQUIRESD FOR COMPLETE COMBUSTION OF THE FUEL, AND STEAM; EFFECTING IN SUCH PRIMARY ZONE A PREPONDERANTLY EXOTHERMIC REATION OF THE FUEL, OXYGEN, AND STEAM OT ELEVATE THE TEMPERATURE LEVEL OF THE REACTANS TO A VALUE WITHIN THE OPTIMUM TEM, PERATURE RANGE FOR THE ENDOTHERMIC REACTION OF THE STEAM WITH THE PRODUCTS OF SUCH PREPONDERANTLY EXOTHERMIC REACTION AND ABOVE THE FUEL ASH FUSION TEMPERATURE WHILE THE FUEL PARTICLES ARE IN SUSPENSE IN A FLUID STREAM DIRECTED AND ABOVE THE FUEL ASH FUSION TEMPERATURE WHILE OF SUCH ZONE AND THEN REVERSELY TOWARD SUCH ONE END OF SUCH ZONE, CONTINUOUSLY WITHDRAWIN THE ASH, RELEASED FROM THE FUEL DUDRING SSUCH PREPONDERANTLY EXOTHERMIC REACTION, AS A MOLTEN SLAG THROUGH THE SLAG OUTLET, THE FLUID STREAM SCRUBBING THE MOLTEN SLAG FLOWOWING TOWARD SUCH OUTLET TO REACT WITH ANY FUEL PARTICLES ENTRAPPED IN SUCH MOLTEN SLEG; CONTINUOUSLY WITHDRAWING A STREAM OF GASEOUS PRODUCTS OF SUCH PREPONDERANTLEXOTHERMIC REACTION STEAM, AND ANY UNREACTED FUEL PARTICLES FROM SUCH PRIMARY ZONE THROUGH SUCH ONE END OF THE PRIMARY ZONE; AND COMPLETING THE PREPONDERANTLY ENDOTHERMIC SYNTHESIS GAS REACTION AS THE STREAM FLOWS THROUGH A LATERALLY CONFINED SECONDARY ZONE RECEIVING THE REACTANTS FROM SUCH ONE END OF THE PRIMARY ZONE.

Claim 4

THE METHOD OF CONTINUOUSLY PRODUCING A SYNTHESIS GAS BY THE REACTION AT HIGH TEMPERATURE OF OXYGEN AND STEAM WITH A SOLID DUEL CONTAINING CARBON, WHICH COMPRISES INTRODUCING INTO AND ADJACENT ONE END OF A LATERALLY CONFINED PRIMARY ZONE AND IN A DIRECTION TOWARDS THE OPPOSITE END OF THE ZONE SOLID FUEL IN A PULVERIZED STATE IN SUSPENSION IN A FLUID STREAM OF SUBSTANTIALLY PURE OXYGEN IN AN AMOUNT LESS THAT THAT REQUIRESD FOR COMPLETE COMBUSTION OF THE FUEL, AND STEAM; EFFECTING IN SUCH PRIMARY ZONE A PREPONDERANTLY EXOTHERMIC REATION OF THE FUEL, OXYGEN, AND STEAM OT ELEVATE THE TEMPERATURE LEVEL OF THE REACTANS TO A VALUE WITHIN THE OPTIMUM TEM, PERATURE RANGE FOR THE ENDOTHERMIC REACTION OF THE STEAM WITH THE PRODUCTS OF SUCH PREPONDERANTLY EXOTHERMIC REACTION AND ABOVE THE FUEL ASH FUSION TEMPERATURE WHILE THE FUEL PARTICLES ARE IN SUSPENSE IN A FLUID STREAM DIRECTED AND ABOVE THE FUEL ASH FUSION TEMPERATURE WHILE OF SUCH ZONE AND THEN REVERSELY TOWARD SUCH ONE END OF SUCH ZONE, CONTINUOUSLY WITHDRAWIN THE ASH, RELEASED FROM THE FUEL DUDRING SSUCH PREPONDERANTLY EXOTHERMIC REACTION, AS A MOLTEN SLAG THROUGH THE SLAG OUTLET, THE FLUID STREAM SCRUBBING THE MOLTEN SLAG FLOWOWING TOWARD SUCH OUTLET TO REACT WITH ANY FUEL PARTICLES ENTRAPPED IN SUCH MOLTEN SLEG; CONTINUOUSLY WITHDRAWING A STREAM OF GASEOUS PRODUCTS OF SUCH PREPONDERANTLEXOTHERMIC REACTION STEAM, AND ANY UNREACTED FUEL PARTICLES FROM SUCH PRIMARY ZONE THROUGH SUCH ONE END OF THE PRIMARY ZONE; AND COMPLETING THE PREPONDERANTLY ENDOTHERMIC SYNTHESIS GAS REACTION AS THE STREAM FLOWS THROUGH A LATERALLY CONFINED SECONDARY ZONE RECEIVING THE REACTANTS FROM SUCH ONE END OF THE PRIMARY ZONE.