Flue gas temperature after denitration
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What is the approximate flue gas temperature after SCR and SNCR denitration? Or rather, by how much can it drop?
This post was last edited by 18515157663 on 2016-6-2 15:10. The SCR catalytic reaction is an exothermic reaction, but the concentration of NOx in the flue gas is very low, so the temperature change resulting from the reaction can be ignored. Furthermore, the reason for the decrease in flue gas temperature within the system is due to heat loss through insulation and the absorption by the dilution air; based on experience, this temperature drop is approximately between 2-4°C. The increase in flue gas temperature as it passes through the denitration reactor roughly cancels out the system’s heat losses, so it can be ignored in the design.