Conversion of Nitrogen and Carbon Oxides by the Atmospheric Hollow Cathode Discharges

• We have successfully tested the fused hollow cathode with aerodynamic stabilization as a 100% oxidation catalyst in conversion of NOx in air mixtures. Plasma chemical kinetics and the processing window width are controlled by plasma characteristics. Results show that, besides the plasma source design itself, the material of the electrodes plays a crucial role. It was found that, by using graphite electrodes, a 100% removal of NO from the air mixtures is possible without necessity of adding hydrocarbons. This paper presents results of oxygen screening, discusses the mechanisms of the process, and reports also on the CO2 reduction in some discharge regimes.

Nyckelord

Fused hollow cathode (FHC)

nonequilibrium atmospheric plasma

plasma conversion of NOx

plasma reduction of CO2

pulsed hollow cathode

Electrical engineering, electronics and photonics

Elektroteknik, elektronik och fotonik

Teknisk fysik med inriktning mot elektricitetslära

Engineering Science with specialization in Science of Electricity

Publikations- och innehållstyp

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