A study on kinetics of NO absorption from flue gas by using UV/Fenton wet scrubbing

Abstract

The mass transfer-reaction kinetics of NO removal from flue gas by using UV/Fenton wet scrubbing were investigated, and a simple kinetic equation was also established. The results indicate that the NO absorption rates increase with the increase of H2O2 concentration, Fe2+ concentration (below 0.005mol/L), NO concentration and UV radiation intensity, but decrease with the further increase of Fe2+ concentration (above 0.005mol/L). The absorption process of NO by using UV/Fenton wet scrubbing is found to be a pseudo-first-order fast reaction. The NO absorption rate can be effectively increased by raising the chemical reaction rate, the gas-liquid contact area and the NO concentration. The validation results of kinetic equation indicate that the calculated values are in good agreement with the experimental values. © 2012.