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Promoting Effect of H + and Other Factors on NO Removal by Using Acidic NaClO 2 Solution

Author

Listed:
  • Pijian Gong

    (School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China)

  • Xinxue Li

    (School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China)

Abstract

In this study, NaClO 2 was selected as a denitration oxidant. In order to clarify the mechanism of NaClO 2 as an oxidation agent for NO removal efficiency, the effects of H + and other factors (NaClO 2 concentration, temperature, and the other gas) on the NO removal efficiency were investigated. NaClO 2 showed a promotional ability on NO removal, whose efficiency increased with the increase of NaClO 2 concentration. One hundred percent removal efficiency of NO could be achieved when the NaClO 2 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 + on the NO removal was studied by the Nernst equation, ionic polarization, and the generation of ClO 2 . Under the optimal conditions, the best removal efficiency of NO was 100%. Based on the experimental results, the reaction mechanism was finally speculated.

Suggested Citation

  • Pijian Gong & Xinxue Li, 2019. "Promoting Effect of H + and Other Factors on NO Removal by Using Acidic NaClO 2 Solution," Energies, MDPI, vol. 12(15), pages 1-11, August.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:15:p:2966-:d:253681
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    References listed on IDEAS

    as
    1. Zhitao Han & Dongsheng Zhao & Dekang Zheng & Xinxiang Pan & Bojun Liu & Zhiwei Han & Yu Gao & Junming Wang & Zhijun Yan, 2018. "NO Removal from Simulated Flue Gas with a NaClO 2 Mist Generated Using the Ultrasonic Atomization Method," Energies, MDPI, vol. 11(5), pages 1-15, April.
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    Cited by:

    1. Liguo Song & Yuhang Wei & Chengqi Deng & Jingang Yang & Hao Sui & Feng Guo & Lingrun Meng & Xingda Zhao & Shiping Wei & Deping Sun & Zhitao Han & Minyi Xu & Xinxiang Pan, 2023. "A Novel Method Based on Hydrodynamic Cavitation for Improving Nitric Oxide Removal Performance of NaClO 2," IJERPH, MDPI, vol. 20(4), pages 1-18, February.

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