Comparison of mercury removal efficiency from a simulated exhaust gas by several types of TiO2 under various light sources

被引:16
作者
Lee, YG
Park, JW
Kim, JH
Min, YR
Jurng, JS
Kim, J
Lee, TG
机构
[1] Yonsei Univ, Dept Chem Engn, Seoul 120749, South Korea
[2] KIST, Environm & Proc Technol Div, Seoul 136791, South Korea
[3] Kyung Hee Univ, Coll Environm & Appl Chem, Yongin Si 449701, Kyunggi Do, South Korea
关键词
D O I
10.1246/cl.2004.36
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A removal efficiency of vapor-phase elemental mercury by TiO2 irradiated using various light sources was investigated. The effective surface area of TiO2 for Hg adsorption and UV radiation was increased by packing the adsorption bed with mixture of TiO2 and glass beads. A rotating-type reactor was specially designed to maximize the photocatalyst's exposure to the light source. For three types of commercially available TiO2, more than 99% of initial Hg was removed under all the light sources tested except for the blue light still achieving a Hg removal efficiency close to 85%.
引用
收藏
页码:36 / 37
页数:2
相关论文
共 10 条
[1]  
Biswas P, 1998, J AEROSOL SCI, V29, pS577, DOI [10.1016/S0021-8502(98)00358-9, DOI 10.1016/S0021-8502(98)00358-9]
[2]  
CHANON M, 1997, HOMOGENEOUS PHOTOCAT, V2, P5
[3]   The development of iodine based impinger solutions for the efficient capture of Hg0 using direct injection nebulization -: Inductively coupled plasma mass spectrometry analysis [J].
Hedrick, E ;
Lee, TG ;
Biswas, P ;
Zhuang, Y .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2001, 35 (18) :3764-3773
[4]   Mercury removal from incineration flue gas by organic and inorganic adsorbents [J].
Jurng, J ;
Lee, TG ;
Lee, GY ;
Lee, SJ ;
Kim, BH ;
Seier, J .
CHEMOSPHERE, 2002, 47 (09) :907-913
[5]   Hg reactions in the presence of chlorine species: Homogeneous gas phase and heterogeneous gas-solid phase [J].
Lee, TG ;
Hedrick, E ;
Biswas, P .
JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION, 2002, 52 (11) :1316-1323
[6]   Comparison of Hg0 capture efficiencies of three in situ generated sorbents [J].
Lee, TG ;
Biswas, P ;
Hedrick, E .
AICHE JOURNAL, 2001, 47 (04) :954-961
[7]  
LEE TG, 1999, THESIS U CINCINNATI
[8]  
U.S. EPA, 1998, ONT HYDR METH DRAFT
[9]  
*US EPA, 1998, MERC STUD REP C
[10]   Capture of mercury in combustion systems by in situ-generated titania particles with UV irradiation [J].
Wu, CY ;
Lee, TG ;
Tyree, G ;
Arar, E ;
Biswas, P .
ENVIRONMENTAL ENGINEERING SCIENCE, 1998, 15 (02) :137-148