화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.19, No.1, 144-149, January, 2013
DOI10.1016/j.jiec.2012.07.016  Export Citation
A pilot-scale TiO2 photocatalytic system for removing gas-phase elemental mercury at Hg-emitting facilities
Jae Han Cho, Yujin Eom1, Seok Ho Jeon, and Tai Gyu Lee†
  • Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
  • 1YS Institute of Environmental Technology, Engineering Research Park, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
E-mail:
A pilot-scale TiO2 photocatalytic system using common household fluorescent lamps was tested at a real combustion facility for its ability to control Hg° emissions. An Hg° removal efficiency of greater than 90% was achieved under optimum conditions. The photocatalytic reaction units connected in series were more efficient than those connected in parallel. Acid components of the flue gas, such as NO and H2O, exhibited significant negative effects on the Hg° removal efficiency. There was no difference in Hg° removal efficiency between the systems employing mono-wavelength and tri-wavelength fluorescent lamps, and the efficiency was enhanced by increasing the amount of irradiation.
Keywords:Mercury;Coal-fired power plant;Waste incinerator;Photocatalyst;Fluorescent light
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