This letter reports efficient treatment of NO emission with a transient, nonequilibrium plasma created by pulsed corona discharge. The transient plasma (≈50 ns) is found to reduce NO emission by 50% in a flow of 2–25 l/s with energy cost ≈10–20 eV/molecule, corresponding to a fraction of source power of ≈5%. The efficiency of reduction is a complex function of parameters that include pulse width, pulse polarity, current density, repetition rate, and reactor design. It was found that the best efficiencies are correlated with a low current density and high repetition rate (1 kHz) under high flow rate. Careful optimization of all these parameters is required to reach cost effective reduction.
Skip Nav Destination
Research Article| December 08 1997
Energy efficient plasma processing of gaseous emission using a short pulse discharge
Victor Puchkarev, Martin Gundersen; Energy efficient plasma processing of gaseous emission using a short pulse discharge. Appl. Phys. Lett. 8 December 1997; 71 (23): 3364–3366. https://doi.org/10.1063/1.120338
Download citation file: