Application of Hydrogen Reburning Technology in Low Nitrogen Combustion in 660 MW Coal-Fired Boilers

Coal-fired boilers are one of the main sources of NOx emissions, and controlling the generation and emission of nitrogen oxides is a hot issue of general concern in today’s society. Hydrogen has the characteristics of “zero pollution”, by analyzing the nature of hydrogen combustion, according to the principle of reburning, hydrogen is used as a reburning fuel in a 660 MW coal-fired boiler, and an embodiment scheme for hydrogen reburning to reduce NOx generation is proposed. Through theoretical analysis and calculation, the technical parameters of hydrogen reburning are obtained, which effectively improves the denitration efficiency, and NOx can be reduced by about 30%, which plays a positive guiding role for the application of hydrogen reburning in coal-fired boilers.