초록 |
Ag/Al2O3 catalyst with hydrocarbons as a reduction agent is potential for selective catalyst reduction of NOx at a temperature above 300 ℃. However, NOx efficiency removal decreased sharply at an early state or low temperature, owing to the low activity of hydrocarbon reducing agent at low-temperatures (≤ 250℃). In order to expended temperature window, a combination of the catalyst with atmospheric-pressure plasma has been proposed, since plasma-catalyst enhanced partially oxidize hydrocarbons at low temperature and these hydrocarbon derivatives are more activity for NOx removal. In this work, several hydrocarbons such as C2H4, C3H8, and C7H16 have been proposed as a reducing agent for the process. The effects will consider in terms of NOx efficiency removal, energy efficiency, and hydrocarbon consumption. |