Research Of Removal Of Nitric Oxide And Sulfur Dioxide From Flue Gas Using A Fe (Ⅱ)-NTA Solution

SO2 and NOx are both the incentive of the acid rain and Photochemical haze, they are also the main atmospheric pollutants in our cities. This article researched the mechanism and the kinetics of the simultaneous reduction of NO and SO2 and individual reduction of NO, the higher the concentration of the NO, Na2SO3 solution and Fe(II)NTA solution are, the better the NO absorption efficiency is.The inlet NO concentration is bigger,the NO reduction efficiency is lower.The presence of oxygen is bad for the NO absorption for the simultaneous absorption of NO and SO2 and the individual absorption of NO condition.For the individual absorption of NO, the liquid flow rate of Fe(II)NTA solution is bigger, the absorption efficiency is higher, the best absoption PH value is 5.5, the best SO2 inlet concentration for NO absorption is 1500ppm,the regeneration temperature is higher, the absorption efficiency is higher.the appearance of the Cl-, SO42-, NO3-, Ca2+ are bad for the NO absorption.For the simultaneous absorption, there are a most suitable liquid flow rate of 22.6ml/min and a most suitable PH value of 5. The regeneration temperature is higher, the absorption efficiency is higher, too.The quantity of the active carbon is bigger, the effeciency is higher when exclude the adsorb,.the appearance of the SO42-, NO3-, Ca2+,Cl- are bad for the NO absoiption. The equation of the individual absorption of NO kinetic is NNO=13465(?) (CFe(Ⅱ)NTA=0.01M), NNO=(?) (CFe(Ⅱ)NTA=0.04M); The equation of the simultaneous absorption of NO and SO2 kinetic is NNO=(?) (CFe(Ⅱ)NTA =0.04M)。...