Abstract
Typically, to meet emission regulations, the selective catalytic reduction of NO
X
with NH
3
(NH
3
-SCR) technology cause NH
3
emissions owing to high NH
3
/NO
X
ratios to meet emission regulations. In this study, V-Cu/BN-Ti was used to remove residual NO
X
and NH
3
. Catalysts were evaluated for selective catalytic oxidation of NH
3
(NH
3
-SCO) in the NH
3
-SCR reaction at 200–300 °C. The addition of vanadium and copper increased the number of Brønsted and Lewis acid sites available for the reaction by increasing the ratio of V
5+
and forming Cu
+
species, respectively. Furthermore, h-BN was dispersed in the catalyst to improve the content of vanadium and copper species on the surface. NH
3
and NO
X
conversion were 98% and 91% at 260 °C, respectively. Consequently, slipped NH
3
(NH
3
-Slip) emitted only 2% of the injected ammonia. Under SO
2
conditions, based on the NH
3
oxidation reaction, catalytic deactivation was improved by addition of h-BN. This study suggests that h-BN is a potential catalyst that can help remove residual NO
X
and meet NH
3
emission regulations when placed at the bottom of the SCR catalyst layer in coal-fired power plants.