Abstract
A novel activated carbon-supported vanadium oxide catalyst was studied for SCR of NO with NH 3 at low temperatures (100 – 250°C). The effects of reaction temperature, preparation conditions and SO 2 on SCR activity were evaluated. The results show that this catalyst has a high catalytic activity for NO–NH 3–O 2 reaction at low temperatures. Preoxidation of the calcined catalyst helps improve catalytic activity. V 2O 5 loading, other than calcination temperature, gives a significant influence on the activity. SO 2 in the flue gas does not de-activate the catalyst but improves it. A stability test of more than 260 h shows that the catalyst is highly active and stable in the presence of SO 2.
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