1. SNCR denitration is to inject reducing agent (an water) into the furnace at the temperature range of 800 ~ 1050 ℃, reduce nitrogen oxides into nitrogen and water at high temperature, and realize the discharge of nitrogen oxides up to standard. The denitration efficiency is greater than 50%.
2. SCR denitration refers to the reduction reaction of flue gas at the temperature of 200 ~ 400 ℃ with the help of catalyst to reduce nitrogen oxides into nitrogen and water, so as to achieve the standard discharge of nitrogen oxides, and the denitration efficiency is greater than 90%.
3. Hncr denitration is to inject reductant (solid dry powder polymer) into the furnace at the temperature range of 700 ~ 850 ℃, reduce nitrogen oxide into nitrogen and water at high temperature, so as to realize the standard discharge of nitrogen oxide, and the denitration efficiency is greater than 80%.
4. Oxidation denitration is to oxidize the normally stable no of Fei into NO2. It is to use the characteristics of NO2 dissolving in water, form nitric acid or nitrite through spray absorption, and then neutralize it with alkali to remove the nitrogen oxides in the flue gas.
Sncr+scr combined denitration technology: sncr/scr combined technology refers to the installation of SNCR and SCR equipment in the flue gas process. Inject liquid an into the SNCR part as reducing agent to partially remove NOx in the SNCR device; In SCR section, an gas escaped from SNCR process reduces NOx in flue gas to N2 under the action of SCR catalyst H2O.
5、低氮燃燒技術改造，通過煙氣再循環(huán)，jiang低煙氣中氧含量，實現折算達標排放。
5. The transformation of low nitrogen combustion technology, through flue gas recirculation, Jiang reduced the oxygen content in flue gas to achieve conversion to standard emission.
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