What are low nitrogen burners

NO generated during combustion can react with nitrogen-containing intermediates to reduce NO to NO2. In practice, in addition to these reactions, NO can also react with various nitrogen-containing compounds to generate NO2. When the reaction reaches chemical equilibrium in a practical combustion device, the [NO2]/[NO] ratio is very small, that is, the conversion of NO to NO2 is very small and can be ignored.

Combustion technology to reduce NOx: NOx is generated by combustion, and the combustion method and combustion conditions have a great influence on the generation of NOx. Therefore, NOx can be reduced by improving combustion technology. The main ways are as follows:

1. Use fuels with lower N content, including fuel denitrification and conversion to low-nitrogen fuels;

2. Reduce the excess air coefficient and organize over-rich combustion to reduce the concentration of oxygen around the fuel;

3. In the case of less excess air, reduce the temperature peak to reduce "thermal reaction NO";

4. In the case of low oxygen concentration, increase the time that combustibles stay in the flame front and reaction zone.
The specific methods generally used to reduce the formation and emission of NOx are: staged combustion, reburning method, low oxygen combustion, rich-lean combustion and flue gas recirculation, etc.www.burners-china.com