Korean Journal of Chemical Engineering

, Volume 21, Issue 3, pp 721–725 | Cite as

Photocatalytic oxidation of ethyl alcohol in an annulus fluidized bed reactor



The photocatalytic oxidation of ethyl alcohol vapor in an annulus fluidized bed reactor of 0.06 m I.D. and 1.0 m long was examined. The TiO2 catalyst employed was prepared by the sol-gel method and was coated on the silica gel powder. The UV lamp was installed at the center of the bed as the light source. The effects of the initial concentration of ethyl alcohol, the power of UV-lamp, the photocatalysts with different preparation methods, and the superficial gas velocity on the reaction rate of ethyl alcohol decomposition were determined. It was found that, at 1.2 Umf of flow rate, about 80% of ethyl alcohol was decomposed with initial concentration of 10,000 ppmv and the increase of superficial gas velocity reduced the reaction rate significantly.

Key words

Photocatalyst TiO2 Ethyl Alcohol SiO2 Sol-gel Fluidized Bed 


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Copyright information

© Korean Institute of Chemical Engineering 2004

Authors and Affiliations

  1. 1.Department of Chem. Eng.Sungkyunkwan UniversitySuwonKorea

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