Synthesis gas generator

Claim 1

A VAPOR GENERATING UNIT COMPRISING, IN COMBINATION, A VERTICALLY ELONGATED SHELL OF CURVILINEAR CROSS SECTION ENCLOSING MEANS AT ITS LOWER END FOR SUPPLYING A STREAM OF HIGH TEMPERATURE GASEOUS COMBUSTION PRODUCTS; A CHAMBER INTERMEDIATE THE HEIGHT OF SAID SHELL FOR RECEIVING GASEOUS COMBUSTION PRODUCTS AT ITS LOWER END AND HAVING A GAS OUTLET AT ITS UPPER END; A TUBULAR VAPOR GENERATING SECTION POSITIONED WITHIN THE SHELL AT A POSITION ABOVE THE GAS OUTLET AND RECEIVING HEATING GASES THERETHROUGH, SAID VAPOR GENERATING SECTION COMPRISING A PLURALITY OF RADIALLY EXTENDING ROWS OF UPRIGHT TUBES; A VAPOR AND LIQUID DRUM AT A POSITION ABOVE SAID TUBES AND CONNECTED THERETO TO RECEIVE HEATED FLUID THEREFROM; A CIRCULAR LIQUID SUPPLY HEADER CONNECTED TO THE LOWER ENDS OF SAID TUBES; LIQUID SUPPLY MEANS CONNECTING THE LIQUID SUPPLY SPACE OF SAID DRUM TO SAID HEADER; A VAPOR SUPERHEATER CONNECTED TO RECEIVE VAPOR FROM THE VAPOR SPACE OF SAID DRUM AND COMPRISING A PLURALITY OF SPACED, UPRIGHT MULTIPLE TUBE LENGTH PLATENS POSITIONED WITHIN THE SHELL AND IN THE GAS FLOW PATH FROM THE GAS OUTLET TO THE VAPOR GENERATING SECTION; A CIRCULAR CROSS-SECTION ROW OF FLUID COOLED TUBES IN CONCENTRIC SPACED RELATION TO AND WITHIN THE SHELL, AND CONNECTED TO SAID DRUM; AN UPWARDLY EXTENDING ANNULAR GAS FLOW PASS FORMED BETWEEN THE SHELL AND SAID CIRCULAR CROSS-SECTION ROW OF FLUID COOLED TUBES, SAID GAS PASS DIRECTING THE GASES FROM SAID OUTLET TO SAID VAPOR GENERATING SECTION; A CONVECTION VAPOR SUPERHEATER DISPOSED IN SAID ANNULAR GAS PASS AND COMPRISING A PLURALITY OF CIRCUMFERENTIALLY EXTENDING TUBES; AND CONDUIT MEANS CONNECTING THE VAPOR SPACE OF SAID DRUM TO THE VAPOR INLET OF ONE SUPERHEATER AND CONNECTING THE VAPOR OUTLET OF SAID ONE SUPERHEATER TO THE VAPOR INLET OF THE OTHER SUPERHEATER.