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

Pijian Gong and Xinxue Li
Additional contact information
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

Energies, 2019, vol. 12, issue 15, 1-11

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.

Keywords: sodium chlorite (NaClO 2 ); wet scrubbing; removal efficiency; NO reaction mechanism (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/12/15/2966/pdf (application/pdf)
https://www.mdpi.com/1996-1073/12/15/2966/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:12:y:2019:i:15:p:2966-:d:253681

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().