Study on influencing factors of SCR flue gas denitration efficiency in coal-fired power plant
In order to maximize the flue gas denitration efficiency of coal-fired power plants,taking SCR flue gas denitration effiiciency as the evaluation index,the flue gas denitration reaction experimental device was used to study the effects of different catalyst types,reaction temperatures,ammonia nitrogen ratios,oxygen concentration,water contents and space velocities on SCR flue gas denitration efficiency,The experimental results showed that,under the same conditions,the denitration effect of Cu-ZSM on the target simulated flue gas is significantly better than that of other types of catalysts;When the reaction temperature was 320℃ and the oxygen concentration was 5％,the SCR flue gas denitration efficiency could reach the maximum;The higher the ratio of ammonia to nitrogen,the greater the denitrification efficiency of SCR flue gas.The optimal ratio of ammonia to nitrogen was 1.0;The greater the water content and airspeed,the lower the SCR flue gas denitration efficiency.In the actual application process,the appropriate airspeed should be selected to balance the denitration efficiency and economic cost.At the same time,the water content should be reduced as much as possible to maximize the SCR flue gas denitration efficiency of coal-fired power plants.
coal-fired power plantsSCR flue gas denitrationcatalyzerdenitration efficiencyinfluence factor
万方数据
维普
