Oxidation and reduction of NOx in diesel-engine exhaust by dielectric barrier discharge

Author

Takaki, K. ; Muaffaq, T. ; Jani, A. ; Fujiwara, Toshihito

Author_Institution

Iwate Univ., Morioka, Japan

Volume

2

fYear

1999

Firstpage

1480

Abstract

An experimental study on the removal of NOx in flue gas has been carried out using plasma chemical reactions in a dielectric barrier discharge. A multipoint-to-plane geometry is used for electrode to lower the operating voltage. Plasma is produced in a narrow gap by a dielectric barrier discharge at low applied voltage with sinusoidal waveform of 2-3 kV RMS. The specific energy cost for NO reduction is around 63 eV. In regard to treatment of exhaust gas from a diesel engine generator (20 kVA), NO can be almost completely depleted by the multipoint-to-plane barrier discharge for electrical loads below 35% of the rated output.

Keywords

air pollution control; discharges (electric); electrodes; internal combustion engines; load (electric); nitrogen compounds; plasma materials processing; 2 to 3 kV; 20 kVA; 63 eV; NO; NO/sub x/ emissions reduction; dielectric barrier discharge; diesel engine generator; diesel-engine exhaust; electrical load; flue gas treatment; multipoint-to-plane barrier discharge; plasma chemical reactions; sinusoidal waveform; Chemicals; Costs; Dielectrics; Electrodes; Flue gases; Geometry; Low voltage; Oxidation; Plasma chemistry; Plasma waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Pulsed Power Conference, 1999. Digest of Technical Papers. 12th IEEE International

Conference_Location

Monterey, CA, USA

Print_ISBN

0-7803-5498-2

Type

conf

DOI

10.1109/PPC.1999.823811

Filename

823811