SCRDenitrification heaterThe system sprays ammonia into the flue gas, and nitrogen oxides react with ammonia under the action of a catalyst to be reduced into nitrogen gas and water, achieving the goal of nitrogen oxide purification. The SCR denitrification system mainly includes two parts: the ammonia station system and the reaction system. The ammonia station system can use liquid ammonia, urea, and ammonia water as reducing agents. The reaction system can use honeycomb, plate, and corrugated plate catalysts.

SCR (Selective Catalytic Reduction)Denitrification electric heaterPerformance characteristics

1. High denitrification efficiency, up to 80-90%, can ensure that flue gas emissions meet ultra clean emission standards;

2. Mature and reliable technology, with a wide range of coal quality and unit load adaptability.

3. There are various reducing agents and diverse layout forms;

4. Modular design, emphasizing both overall and detailed design, striving for design;

5. The system is fully automated and easy to install and maintain.

The operating principle of SCR flue gas denitrification heater technology

Ammonia gas is sprayed as SCR low-temperature flue gas denitration agent into high-temperature flue gas SCR low-temperature flue gas denitrationElectric heaterIn the device, NOx in the flue gas is decomposed into N2 and H2O under the action of a catalyst, and the reaction formula is as follows:

Catalyst

4NO+4NH3+O2 → 4N2+6H2O

Catalyst

NO+NO2+2NH3 → 2N2+3H2O

Generally, by using appropriate catalysts, the above reaction can be carried out within the temperature range of 200 ℃ to 450 ℃. In the case of NH3/, the SCR low-temperature flue gas denitrification efficiency can reach 80% to 90%.