Paper Title
Reduction Of Nitrogen Oxides In A Plasma-Coupled Catalytic Reactor With A Hydrocarbon Reductant

Abstract
The reduction of nitrogen oxides (NO x ) in a plasma-coupled hydrocarbon selective catalytic reduction (HC-SCR) process was investigated with n-heptane as a reducing agent. Experimental results showed that the plasma/HC-SCR combined process achieved higher NO x conversion efficiency under the same conditions than the HC-SCR-alone process, exhibiting better catalytic activities for the NO x reduction at higher discharge voltages. In the plasma-coupled HC-SCR process, the improvement in theNO x conversion efficiency is interpreted not only by the plasma-induced oxidation of NO to more reactive NO 2 but also by the decomposition of n-heptane into partially oxidized hydrocarbons such as aldehydes that are more effective reducing agents. Indexterms- Plasma, Nitrogen oxides, Heptane, Aldehyde