FIELD: machine building.
SUBSTANCE: system for reduction of NOx emission consists of: reformer receiving fuel and producing flow enriched with hydrogen, also flow enriched with hydrogen contains amount of hydrogen equal or less, than approximately 10 volume percents, of combustion system for combustion of flow enriched with hydrogen and for production electricity and exhaust flow and of recuperator recuperating heat from exhaust flow. Recuperated heat is recycled back into the reformer. The procedure for reduction of NOx emissions consists in : reforming by means of the reformer of fuel for production of the flow enriched with hydrogen, also, the flow enriched with hydrogen contains carbon monoxide, carbon dioxide, fuel and hydrogen at amount of approximately 10 volume percents or less; in separation of carbon dioxide from the flow enriched with hydrogen by means of a separating unit for production of a flow enriched with carbon dioxide; in combustion of the flow enriched with hydrogen at the first stage of the combustion chamber; and in introduction of the flow enriched with carbon dioxide at the second step of the combustion chamber for further combustion of the flow enriched with hydrogen. At combustion at the first and second steps there is generated heat energy and also a flow of hot compressed gas mixture. Further, the procedure consists in expansion of the flow of hot compressed gas mixture for generation of electric power and an exhaust flow, in recuperation of heat energy of the combustion chamber and the exhaust flow and in re-circulation of recuperated heat energy into the reformer.
EFFECT: raised efficiency of process of electric power generation and reduced prime cost of reforming.
