Photo-degradation Characteristics of TCE (Trichloroethylene) in an Annulus Fluidized Bed Photoreactor

Tak Hyoung Lim; Sang Done Kim

Korean Journal of Chemical Engineering, Vol.21, No.4, 905-909, July, 2004

DOI10.1007/BF02705538 Export Citation

Photo-degradation Characteristics of TCE (Trichloroethylene) in an Annulus Fluidized Bed Photoreactor

Tak Hyoung Lim, and Sang Done Kim^†

Department of Chemical & Biomolecular Engineering and Energy & Environment Research Center, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea

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The effects of gas velocity, annulus gap on solid (ε_s) and gas phase holdups (ε_g), UV light transmittance and photocatalytic reduction of TCE (trichloroethylene) over TiO₂/silica gel photocatalyst have been determined in an annulus fluidized bed photoreactor. The optimum TCE reduction efficiency exhibits at ε_s/ε_g of 0.48, annulus gap of 8 mm and UV light transmittance around 0.20. The most pronounced effects on TCE conversion are found to be gas velocity (U_g) and annular gap in the photoreactor.

Keywords:Gas Velocity;Annulus Gap;Annulus-fluidized Bed;TCE Reduction

[References]

Brucano A, Iatridis D, Rizzuti L, Yue PL, Can. J. Chem. Eng., 70, 1063 (1992)
Dibble L, Raupp G, Environ. Sci. Technol., 26, 492 (1992)
Iatridis D, Yue PL, Rizzuti L, Brucano A, Chem. Eng. J., 45, 1 (1990)
Khan F, Yue PL, Rizzuti L, Augugliaro V, Ind. Eng. Chem. Res., 22, 238 (1983)
Lim TH, Jeong SM, Kim SD, Janos G, J. Photochem. Photobiol. A-Chem., 134, 209 (2000)
Lim TH, Jeong SM, Kim SD, Janos G, React. Kinet. Catal. Lett., 71, 223 (2000)
Lim TH, Kim SD, Korean J. Chem. Eng., 19(6), 1072 (2002)
Sopyan I, Mitsuru W, Sadao M, Hashimoto K, Fujishima A, Chem. Lett., 69 (1996)
Rizzuti L, Yue PL, Chem. Eng. Sci., 38, 1241 (1983)
Yue PL, Khan F, Rizzuti L, Chem. Eng. Sci., 38, 1893 (1983)
Yue PL, Rizzuti L, Augugliaro V, Chem. Eng. Sci., 41, 171 (1986)

[Referenced By]

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[1] Brucano A, Iatridis D, Rizzuti L, Yue PL, Can. J. Chem. Eng., 70, 1063 (1992)

[2] Dibble L, Raupp G, Environ. Sci. Technol., 26, 492 (1992)

[3] Iatridis D, Yue PL, Rizzuti L, Brucano A, Chem. Eng. J., 45, 1 (1990)

[4] Khan F, Yue PL, Rizzuti L, Augugliaro V, Ind. Eng. Chem. Res., 22, 238 (1983)

[5] Lim TH, Jeong SM, Kim SD, Janos G, J. Photochem. Photobiol. A-Chem., 134, 209 (2000)

[6] Lim TH, Jeong SM, Kim SD, Janos G, React. Kinet. Catal. Lett., 71, 223 (2000)

[7] Lim TH, Kim SD, Korean J. Chem. Eng., 19(6), 1072 (2002)

[8] Sopyan I, Mitsuru W, Sadao M, Hashimoto K, Fujishima A, Chem. Lett., 69 (1996)

[9] Rizzuti L, Yue PL, Chem. Eng. Sci., 38, 1241 (1983)

[10] Yue PL, Khan F, Rizzuti L, Chem. Eng. Sci., 38, 1893 (1983)

[11] Yue PL, Rizzuti L, Augugliaro V, Chem. Eng. Sci., 41, 171 (1986)