SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2015, Vol. 23 ›› Issue (11): 1875-1880.DOI: 10.1016/j.cjche.2015.09.001

• 能源、资源与环境技术 • 上一篇    下一篇

Removal of elemental mercury by modified bamboo carbon

Zengqiang Tan1, Guoping Niu1, Xiaowen Chen2   

  1. 1 Xi'an Thermal Power Research Institute Co. Ltd., Xi'an 710032, China;
    2 Qinghai Huanghe Hydropower Development Co., Ltd (Xining Branch), Xining 810007, China
  • 收稿日期:2014-12-07 修回日期:2015-04-07 出版日期:2015-11-28 发布日期:2015-12-18
  • 通讯作者: Zengqiang Tan
  • 基金资助:

    Supported by the Huaneng Group Headquarters (HNKJ14-H10) and China Postdoctoral Science Foundation (2013M542373).

Removal of elemental mercury by modified bamboo carbon

Zengqiang Tan1, Guoping Niu1, Xiaowen Chen2   

  1. 1 Xi'an Thermal Power Research Institute Co. Ltd., Xi'an 710032, China;
    2 Qinghai Huanghe Hydropower Development Co., Ltd (Xining Branch), Xining 810007, China
  • Received:2014-12-07 Revised:2015-04-07 Online:2015-11-28 Published:2015-12-18
  • Contact: Zengqiang Tan
  • Supported by:

    Supported by the Huaneng Group Headquarters (HNKJ14-H10) and China Postdoctoral Science Foundation (2013M542373).

摘要: Themercury removal performance ofmodified bamboo charcoal (BC) was investigatedwith a bench-scale fixedbed reactor. A simple impregnation method was used tomodify the BC with ZnCl2 and FeCl3 separately. BET and XPS were used to determine the pore structure and surface chemistry of the sorbents. The role of Fe3+ in the removal of elemental mercury bymodified sorbents was discussed. The experimental results suggest that themodified BCs have excellent adsorption potential for elemental mercury at a relatively higher temperature, 140 ℃. The BET surface area and average pore size ofmodified sorbents do not shownoticeable priority compared to unmodified BC. XPS spectra indicate that Fe atoms mainly exist in the form of Fe3+ for the FeCl3-impregnated BC. Better performance of FeCl3-impregnated BC at different temperatures (20, 140 and 180 ℃) suggests the enhancement of non-chloride functional groups (Fe3+). Inhibition effect of SOx and NO for Hg0 removal by BC samples is present in the study.

关键词: Elemental mercury, Bamboo charcoal, FeCl3, ZnCl2

Abstract: Themercury removal performance ofmodified bamboo charcoal (BC) was investigatedwith a bench-scale fixedbed reactor. A simple impregnation method was used tomodify the BC with ZnCl2 and FeCl3 separately. BET and XPS were used to determine the pore structure and surface chemistry of the sorbents. The role of Fe3+ in the removal of elemental mercury bymodified sorbents was discussed. The experimental results suggest that themodified BCs have excellent adsorption potential for elemental mercury at a relatively higher temperature, 140 ℃. The BET surface area and average pore size ofmodified sorbents do not shownoticeable priority compared to unmodified BC. XPS spectra indicate that Fe atoms mainly exist in the form of Fe3+ for the FeCl3-impregnated BC. Better performance of FeCl3-impregnated BC at different temperatures (20, 140 and 180 ℃) suggests the enhancement of non-chloride functional groups (Fe3+). Inhibition effect of SOx and NO for Hg0 removal by BC samples is present in the study.

Key words: Elemental mercury, Bamboo charcoal, FeCl3, ZnCl2