NEXT-GENERATION CARBON-FREE BOILER, OPERATION METHOD THEREOF, METHOD OF PRODUCING HYDROGEN-RICH AMMONIA IN THE NEXT-GENERATION CARBON-FREE BOILER, AND UREA WATER USED IN THE NEXT-GENERATION CARBON-FREE BOILER, THE OPERATION METHOD THEREOF, AND THE METHOD OF PRODUCING HYDROGEN-RICH AMMONIA IN THE NEXT-GENERATION CARBON-FREE BOILER

摘要

PROBLEM TO BE SOLVED: To provide: a next-generation carbon-free boiler using new global environment-friendly energy sources with high safety and reliability; an operation method of the next-generation carbon-free boiler; and a method of producing a hydrogen-rich ammonia.SOLUTION: A next-generation carbon-free boiler includes: a boiler body 12 having a combustion chamber 20a; a hydrogen-rich ammonia combustion burner 24 generating a combustion gas by flame in the combustion chamber; a urea water supply source 61 supplying urea water; a hydrogen-rich ammonia generation reactor 40 connected to the urea water supply source and arranged in a flow passage of the combustion gas to be heated using a part of thermal energy of the combustion gas for hydrolyzing the urea water to generate ammonia and for decomposing a part of the ammonia in the presence of thermal energy of the combustion gas to generate a hydrogen-rich gas; and a hydrogen-rich ammonia supply line 67 supplying the hydrogen-rich ammonia consisting of a mixture gas of the rest of the ammonia and the hydrogen-rich gas to the hydrogen-rich ammonia combustion burner.