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Vol. 25 No. 15 (2013): Vol 25 Issue 15

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Adsorption of Mercury on Activated Carbon in Simulated Flue Gas with Continuous Components Change

https://doi.org/10.14233/ajchem.2013.15541
Chang-Xing Hu
Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, P.R. China
Jin-Song Zhou
State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P.R. China
Jian-Xin Li
Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, P.R. China
Yong-Chuan Wang
Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, P.R. China
Jiao Zheng
Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, P.R. China
Mei-Juan Xu
Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, P.R. China
Zhong-Yang Luo
State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P.R. China
Ke-Fa Cen
State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P.R. China

Corresponding Author(s) : Chang-Xing Hu

huchx@zju.edu.cn

Asian Journal of Chemistry, Vol. 25 No. 15 (2013): Vol 25 Issue 15

Abstract

This paper focused on the influence of flue gas component change on elemental mercury (Hg0) adsorption by powder activated carbon from apricot’s shell and discussed the Hg0 adsorption characteristics and mechanism of activated carbon. Experimental results showed that activated carbon from apricot’s shell had no Hg0 adsorption ability in the non-oxidizing atmosphere, such as N2, N2 + CO2 etc. Though the influence on homogeneous oxidation reaction of Hg0 was limited, NO2 was the key factor on heterogeneous catalytic oxidation reaction of Hg0 on the surface of activated carbon. It was easy to form NO2 by reaction between the NO and O2. It could also enhance the Hg0 adsorption ability of activated carbon through preloading NO2 on the surface. Based on these experimental results, it finely proved that Hg0 adsorption by activated carbon was a heterogeneous catalytic oxidation reaction.

Keywords

Apricot shell Activated carbon Elemental mercury Oxidization Chemical adsorption
Hu, C.-X., Zhou, J.-S., Li, J.-X., Wang, Y.-C., Zheng, J., Xu, M.-J., … Cen, K.-F. (2013). Adsorption of Mercury on Activated Carbon in Simulated Flue Gas with Continuous Components Change. Asian Journal of Chemistry, 25(15), 8765–8768. https://doi.org/10.14233/ajchem.2013.15541
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