| Summary: | In this study, NaClO<sub>2</sub> was selected as a denitration oxidant. In order to clarify the mechanism of NaClO<sub>2</sub> as an oxidation agent for NO removal efficiency, the effects of H<sup>+</sup> and other factors (NaClO<sub>2</sub> concentration, temperature, and the other gas) on the NO removal efficiency were investigated. NaClO<sub>2</sub> showed a promotional ability on NO removal, whose efficiency increased with the increase of NaClO<sub>2</sub> concentration. One hundred percent removal efficiency of NO could be achieved when the NaClO<sub>2</sub> concentration was 0.014 mol/L. Furthermore, raising the reaction temperature benefited the removal of NO. The lower the pH, the better the NO removal efficiency. The promoting effect of H<sup>+</sup> on the NO removal was studied by the Nernst equation, ionic polarization, and the generation of ClO<sub>2</sub>. Under the optimal conditions, the best removal efficiency of NO was 100%. Based on the experimental results, the reaction mechanism was finally speculated.
|
|---|
