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Abstract ▼ AI-Helper

This work investigated the catalytic reaction characteristics of $H_2$ SCR applied at low temperature ($80{\sim}150^{\circ}C$) using Pt catalyst supported on $TiO_2$. The experiments were performed in terms of $H_2O$, $O_2$ in reaction gas, calc...

This work investigated the catalytic reaction characteristics of $H_2$ SCR applied at low temperature ($80{\sim}150^{\circ}C$) using Pt catalyst supported on $TiO_2$. The experiments were performed in terms of $H_2O$, $O_2$ in reaction gas, calcination temperature of the Pt catalyst, $H_2$/NOx mole ratio, space velocity. $H_2O$ was an inhibitor of reaction on $H_2$ SCR using Pt catalyst, catalytic performance increased as $O_2$ concentration decreased. Nevertheless, $NH_3$ slip generated by the reaction between NOx and $H_2$ in the absence of $O_2$. While it was effective to calcine less than $600^{\circ}C$ by phase transition and the catalytic performance increased as $H_2$/NOx mole ratio increased. However, $H_2$ slip was not observed at that increase mole ratio by $H_2$ oxidation to $H_2O$.

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