First of all, fuel selection, use high-quality fuels, reduce the nitrogen content in the fuel, and at the same time ensure that the calorific value meets the specified requirements.

　　Then, use low-nitrogen combustion technology to control combustion temperature, oxygen content and time. The main methods include pure oxygen combustion, temperature control technology (air classification, fuel classification, decentralized combustion, flue gas internal circulation, flue gas external circulation, air cooling, water cooling Wait).

　　Finally, add treatment devices after flue gas discharge, such as tail flue gas denitration technology (SNCR, SCR), AO dry desulfurization and denitrification synergistic technology, biomass algae capture technology, etc.