Paper Title:
Removal of Gas-Phase Elemental Mercury by Bromine-Impregnated Activated Carbon
  Abstract

Br-impregnated activated carbon for gas-phase elemental mercury adsorption experiments were carried out at a fixed-bed system to get the suitable mass fraction of KBr impregnation solution. Hg removal efficiency of 1% wt KBr-ACs was 69.0%, while that of 10% wt KBr-ACs was 57.9%. Both of them were higher than that of the raw activated carbon, 42.2%. The removal efficiency of Hg0 was not proportional to bromine concentration. Under 80-180°C, Hg removal efficiency of 1% wt KBr-ACs were 68.3%-71.8%, and at 140°C it reached the highest due to the increasing chemical adsorption ability of the functional groups which was on the surfaces of activated carbons by impregnating. At 160°C, Hg removal efficiency was lower than that at 140°C due to desorption making physical adsorption decrease, so that the total adsorption decreased.

  Info
Periodical
Advanced Materials Research (Volumes 356-360)
Chapter
Chapter 7: Pollution Control Project (Air, Water, Solid)
Edited by
Hexing Li, Qunjie Xu and Daquan Zhang
Pages
1660-1663
DOI
10.4028/www.scientific.net/AMR.356-360.1660
Citation
J. Wu, J. H. Chen, S. B. Zhang, P. He, J. H. Fang, Y. C. Wu, "Removal of Gas-Phase Elemental Mercury by Bromine-Impregnated Activated Carbon", Advanced Materials Research, Vols. 356-360, pp. 1660-1663, 2012
Online since
October 2011
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Price
$32.00
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