The effects of gas velocity, annulus gap on solid (εs) and gas phase holdups (εg), 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 εs/εg 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 (Ug) and annular gap in the photoreactor.
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Brucano, A., Iatridis, D., Rizzuti, L. and Yue, P. L.,“Modelling of Light Transmittance and Reflectance in Flat Fluidized Photoreactor,”Can. J. Chem. Eng.,70, 1063 (1992).
Dibble, L. and Raupp, G.,“Fluidized-Bed Photocatalytic Oxidation of Trichloroethylene in Contaminated Air Streams,”Environ. Sci. Technol,26, 492 (1992).
Iatridis, D., Yue, P. L., Rizzuti, L. and Brucano, A.,“The Adsorption of Light Energy in Flat Fluidized Photoreactors,”Chem. Eng. J.,45, 1 (1990).
Khan, F., Yue, P. L., Rizzuti, L. and Augugliaro, V.,“Photoassisted Water Cleavage and Nitrogen Fixation over Titanium Exchanged Zeolites,”Ind. Eng. Chem. Res.,22, 238 (1983).
Lim, T. H., Jeong, S. M., Kim, S. D. and Janos, G.,“Photocatalytic Decomposition of NO by TiO2 Particles,”J. Photochem. Photobiol. A: Chem.,134, 209 (2000a).
Lim, T. H., Jeong, S. M., Kim, S. D. and Janos, G., “Degradation Characteristics of NO by Photocatalysis with TiO2 and CuO/TiO2,”React. Kinet. Catal. Lett.,71, 223 (2000b).
Lim, T. H. and Kim, S. D.,“Photocatalytic Degradation of Trichloroethylene over TiO2/SiO2 in an Annulus Fluidized Bed Reactor,”Korean J. Chem. Eng.,19, 1072 (2002).
Sopyan, I, Mitsuru, W., Sadao, M., Hashimoto, K. and Fujishima, A.,“Efficient TiO2 Powder and Film Photocatalysts with Rutile Crystal Structure,”Chem. Lett.,69 (1996).
Rizzuti, L. and Yue, P. L.,“The Measurement of Light Transmission through an Irradiated Fluidized Bed,”Chem. Eng. Sci.,38, 1241 (1983).
Yue, P. L., Khan, F. and Rizzuti, L.,“Photocatalytic Ammonia Synthesis in a Fluidized Bed Reactor,”Chem. Eng. Sci.,38, 1893 (1983).
Yue, P. L., Rizzuti, L. and Augugliaro, V.,“Bubble Phase Voidage and Dense Phase Voidage in Thin Two-Dimensional Fluidized Beds,”Chem. Eng. Sci.,41, 171 (1986).
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Lim, T.H., Kim, S.D. Photo-degradation characteristics of TCE (trichloroethylene) in an annulus fluidized bed photoreactor. Korean J. Chem. Eng. 21, 905–909 (2004). https://doi.org/10.1007/BF02705538