WATER GAS GENERATION SYSTEM, AND COMBUSTION GAS SUPPLY METHOD FOR WATER GAS GENERATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To improve thermal efficiency without using an exclusive heat source which generates steam used as gasifying agent of carbide, and promote pyrolysis reaction in a pyrolysis furnace.SOLUTION: There is provided a water gas generation system 100 that comprises: a carbonization furnace 20 which generates carbide and combustion gas; pyrolysis furnace 30 which generates water gas by heating carbide generated by the carbonization furnace 20 together with steam by combustion gas; a steam generator 80 which generates steam by heating water by combustion gas; a combustion gas flow path 200a which supplies combustion gas generated in the carbonization furnace 20 to the pyrolysis furnace 30; a combustion gas flow path 200b which supplies combustion gas discharged from the pyrolysis furnace 30 to a steam superheater 81; a combustion gas flow path 200c which supplies combustion gas discharged from the steam superheater 81 to the steam generator 80; and a combustion gas flow path 200d which supplies combustion gas discharged from the steam generator 80 to a dryer 10.SELECTED DRAWING: Figure 1