Jump to main content
Jump to site search

Issue 86, 2014
Previous Article Next Article

Denitrification utilizing a vaporized enhanced-Fenton reagent: kinetics and feasibility

Author affiliations

Abstract

This paper proposes a novel integrative process for NO removal, in which NO was initially oxidized by a vaporized enhanced-Fenton reagent (EF), composed of hydrogen peroxide, ferrous and peroxyacetic acid (PAA), then absorbed by Ca(OH)2. The effects of EF constitution, the reaction temperature, the pH of EF solution and the SO2 concentration on NO removal were systematically investigated, and the experimental results indicated that both FeSO4 and PAA can significantly promote the oxidation rate of NO; the decreasing of pH and increasing of temperature played a key role in enhancing NO removal. The NO depletion exhibited a pseudo-first order kinetics pattern in 1–2 half-lives, based on the macrokinetics of NO oxidation. In addition, the rate constants determined in the temperature range of 60 to 120 °C were well fitted to the Arrhenius equation, yielding the apparent activation energy of 14.1 kJ mol−1. The mechanism of NO oxidation was also speculated.

Graphical abstract: Denitrification utilizing a vaporized enhanced-Fenton reagent: kinetics and feasibility

Back to tab navigation

Publication details

The article was received on 31 Jul 2014, accepted on 27 Aug 2014 and first published on 28 Aug 2014


Article type: Paper
DOI: 10.1039/C4RA07879A
Author version
available:
Download author version (PDF)
Citation: RSC Adv., 2014,4, 46060-46067

  •   Request permissions

    Denitrification utilizing a vaporized enhanced-Fenton reagent: kinetics and feasibility

    Y. Zhao and R. Hao, RSC Adv., 2014, 4, 46060
    DOI: 10.1039/C4RA07879A

Search articles by author

Spotlight

Advertisements