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http://dx.doi.org/10.9713/kcer.2013.51.1.116

Characteristics of CO Removal Process Using TiO2 Photocatalyst  

Kim, Jin-Kil (Department of Chemical Engineering, Chungnam National University)
Lee, Sang-Moon (Department of Environmental Energy Systems Engineering, Kyonggi University)
Hong, Sung-Chang (Department of Environmental Energy Systems Engineering, Kyonggi University)
Lee, Eui-Dong (HANA I&E)
Kang, Yong (Department of Chemical Engineering, Chungnam National University)
Publication Information
Korean Chemical Engineering Research / v.51, no.1, 2013 , pp. 116-120 More about this Journal
Abstract
Characteristics of photocatalytic CO removal process conducting CO conversion by using Pt loaded $TiO_2$ photocatalyst were investigated in a photocatalytic tubular reactor. Effects of Pt loading method onto $TiO_2$, linear velocity of gas stream containing CO gas, CO concentration and moisture content in the gas stream on the conversion of CO to $CO_2$ were examined. It was found that the CO gas could be removed almost 100% by using photocatalytic tubular reactor internally coated with Pt/$TiO_2$ photocatalyst under UV irradiation, when the linear velocity of gas stream was in the range of 0.01~0.25 m/s and CO concentration in the gas stream was ranged from 20 to 100 ppm and the relative humidity of the gas stream was in the range of 20~40%. The conversion of CO gas decreased gradually with increasing linear velocity of gas stream and CO concentration in the gas stream. The moisture in the gas stream could promote the removal of CO gas by means of the generation of OHradicals.
Keywords
CO Removal; Tubular Photocatlytic Reactor; Pt/$TiO_2$ Photocatalyst; UV Irradation;
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