The Experimental Study Of Active Coke Removing Nitrogen Oxide In The Simulated Sintering Flue Gas

Sintering flue gas denitrification is a hotspot and difficulty on the reserch ofdenitrification in domestic and foreign, and active coke due to its unique chemical andphysical properties is the most potential denitrification adsorption catalyst, widely used in allkinds of flue gas desulfurization and denitrification. This experiment mainly study theinfluencing factors on the original active coke denitrification experimental performance, andstudying different active material modified active coke denitrification performance.Experiment using simulated sintering flue gas, in the basic denitrification experiment oforiginal active coke, discusseing the flue gas flow rate, reaction temperature, the amount ofactive coke on active coke adsorption catalytic effect of properties of NOx, respectively.Experiment results show that when the reaction temperature is100℃, the amount of activecoke is60g, and the flue gas flow rate is200ml/min can obtain the best economic andtreatment benefits.Then using CuO、Fe₂O₃、MnO₂、CuSO₄、FeSO₄、CeO₂、Cr₂O₃、V₂O₅modified activecoke, studying the denitrification properties of modified active coke under the optimalexperimental conditions. Experimental discovery, modified active coke show high activity forthe removal of nitrogen oxide in the simulation sintering flue gas, denitrification rate morethan90%after stability, and comparing the various of modified materials found that Fe₂O₃modified active coke has lower cost and higher denitrification efficiency. Experimental resultsshow that, the active coke having lower cost and better comprehensive performance.