NOx Destruction in Air and Nitrogen by Dielectric Barrier Corona Discharge

Destruction of NO_x (200 ppm - 1%) by dielectric barrier corona discharge in zero air and nitrogen was studied at 298 K and pressure 1 atm. Effects of adding of hexane or ammonia were also evaluated. The kinetics and the products of the destruction were determined as functions of the specific discharge energy, contact time and NO_x concentration. Two ranges of the specific energy deposition which reflect the competition between the destruction and production of NO_x in discharge were found. At low specific energies (< 500 J/L) an efficient removal of NO_x both in air and nitrogen is observed.