Diesel Engine Exhaust Gas Treatment for NO<i> <sub>x</sub> </i> Reduction Using Microwave Nonthermal Plasma Reactor
A proof of concept microwave non-thermal plasma reactor (NTPR) has been developed in order to assess whether the sole use of microwaves without cascading treatment, for example, electron beam or chemical reactants, may reduce NO<italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><sub>x</sub></i> in diesel engine exhaust gas. The experimental study used a 2.47 GHz source at 10 and 5 kW to drive a waveguide-based cavity achieving an amplification gain of 22.6 dB. Gas treatment with pulsed microwaves proved that NO<italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><sub>x</sub></i> reduction is possible by using optimal pairs of pulse durations and pulse repetition rates. Further improvements on the NO<italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><sub>x</sub></i> reduction efficiency were achieved by using a varying duty cycle pulsed scheme.
Authors
- Zisis C. Ioannidis (ORCID: https://orcid.org/0000-0002-1233-9111)
- Stylianos P. Savaidis (ORCID: https://orcid.org/0000-0003-3859-3326)
- Konstantinos E. Orfanidis
Institutions
- National and Kapodistrian University of Athens (GR)
- University of West Attica (GR)
Publication Details
- Journal
- IEEE Transactions on Plasma Science
- Published
- 2025-03-24
- DOI
- https://doi.org/10.1109/tps.2025.3549984
- Primary Topic
- Catalytic Processes in Materials Science
- Type
- article
- Field-Weighted Citation Impact
- 0.00