The Research of Removing Elemental Mercury in Flue Gas by Peroxidase-like catalyst

DOI

10.2991/msmee-17.2017.63How to use a DOI?

Keywords

peroxidase-like catalyst,elemental mercury, mercury removal efficiency, chemical analysis

Abstract

In this paper,peroxidase-like catalyst was prepared by organic synthesis. The removal of elemental mercury in flue gas and the effect of single factor experiments were carried out in a simulated flue gas system. The result shows that mercury removal efficiency could reach 70.6% when 30% hydrogen peroxide H2O2 addition amount is 9.8 mmol, the amount of the peroxidase-like catalyst is 0.02g, and the initial pH value of the solution is 8.81 and the reaction temperature is 40.63 . Besides, catalyst oxidation products of mercury removal experiment were analyzed by atomic fluorescence spectrophotometer. In addition, Isopropyl alcohol was used as the capture agent of hydroxyl radical produced by hydrogen peroxide. Strong oxidizing substances produced by peroxidase-like catalyst and hydrogen peroxide is high valence iron and hydroxyl radicals, in which high valence iron plays a major role, hydroxyl radical and hydrogen peroxide play a secondary role. Generally speaking, the three compound act together to oxidize the elemental mercury (Hg0) into two valent mercury (Hg2+).

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Bohua Sun
PY  - 2017/05
DA  - 2017/05
TI  - The Research of Removing Elemental Mercury in Flue Gas by Peroxidase-like catalyst
BT  - Proceedings of the 2017 2nd International Conference on Materials Science, Machinery and Energy Engineering (MSMEE 2017)
PB  - Atlantis Press
SP  - 300
EP  - 303
SN  - 2352-5401
UR  - https://doi.org/10.2991/msmee-17.2017.63
DO  - 10.2991/msmee-17.2017.63
ID  - Sun2017/05
ER  -