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http://dx.doi.org/10.7464/ksct.2017.23.1.064

Enhanced NH3-SCR Activity of V/TiO2 Catalyst Prepared by Various Ball Mill Method  

Kim, Dong Ho (Department of Environmental Energy Systems Engineering, Graduate school of Kyonggi University)
Seo, Phill Won (Department of Research & Development, Ceracomb Co., Ltd.)
Hong, Sung Chang (Department of Environmental Energy Systems Engineering, Kyonggi University)
Publication Information
Clean Technology / v.23, no.1, 2017 , pp. 64-72 More about this Journal
Abstract
In this study, the selective catalytic reduction (SCR) for NOx removal was investigated in the temperature range of $150{\sim}400^{\circ}C$. XRD, BET and XPS analyses to determine the structural properties and valence state characteristics of the catalyst were performed. Various ball mill method were shown to a difference in activity at a low temperature below $250^{\circ}C$. Based on the catalyst with the highest denitrification efficiency, the ball mill time was the best result at 3 h. As a result of XPS analysis, the presence of the non-stoichiometric vanadium species and the increase of the number of atoms were attributed to a positive effect in the SCR reaction. it was confirmed that the correlation between the amount of lattice oxygen and the denitrification efficiency through the $O_2$ on-off experiment, and it was in a proportional relationship to each other.
Keywords
NOx; $NH_3$-SCR; Catalyst; Vanadium; Ball mill;
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