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The Effect of CO in the Flue Gas on $H_2$ SCR  

Kim, Sung-Su (Department of Environmental Energy Systems Engineering, Graduate School of Kyonggi University)
Hong, Sung-Chang (Department of Environmental Energy Systems Engineering, Kyonggi University)
Publication Information
Applied Chemistry for Engineering / v.21, no.4, 2010 , pp. 391-395 More about this Journal
Abstract
This study presents the effect of CO in flue gas on the $H_2$ SCR by Pt/$TiO_2$ catalyst. Coexisting CO which has characteristics of competitive adsorption with $H_2$ as a reductant on the active sites showed the decrease of catalytic activity. Competitive adsorption with NO, CO and $H_2$ also caused the reduction of activity and $H_2$, CO slip simultaneously. With increasing the inlet CO concentration, such phenomenon became more pronounced. Adding $PdO_2$ and $CeO_2$ on the catalyst to avoid the inhibition by coexisting CO, $CeO_2$ added catalyst exhibited the durability against CO which fed 100 ppm under.
Keywords
Pt/$TiO_2$; $H_2$ SCR; CO; $CeO_2$;
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