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Application of Microplasma for NOx Removal
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.
2009 (English)In: IEEE transactions on industry applications, ISSN 0093-9994, E-ISSN 1939-9367, Vol. 45, no 4, 1506-1512 p.Article in journal (Refereed) Published
Abstract [en]

In this paper, microplasma is investigated, which occurs between the narrow gap of the electrodes covered with dielectric materials. The discharge gap is set on the order of micrometers by changing a spacer from 0 to 100 mu m. In this paper, the characteristics of microplasma, such as discharge voltages, discharge currents, and discharge power that is obtained with the help of Lissajous figures, and the relationships between these electric characteristics are presented. The characteristics of ozone generation by a microplasma electrode are investigated. Treatment by microplasma for the simulated exhaust gas, which contains NOx and C3H8 as a role of HC and CO, is estimated experimentally. In the absence of O-2, the exhaust gas is decomposed by nitrogen atomic species in particular. In the presence of O-2, it is decomposed by nitrogen atomic species and oxidized by ozone. By-product analysis of treated gases is carried out by Fourier transform infrared spectroscopy and gas chromatography-mass spectrometry. When HC, NOx, and N-2 are included in the simulated exhaust gas, HCN, N2O, and CH4 are confirmed as by-products of the microplasma treatment.

Place, publisher, year, edition, pages
2009. Vol. 45, no 4, 1506-1512 p.
Keyword [en]
Air pollution control, exhaust gas, microplasma, NOx, ozone
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:kth:diva-30759DOI: 10.1109/TIA.2009.2023494ISI: 000268281700037ScopusID: 2-s2.0-68249153266OAI: diva2:401818
QC 20110304 42nd Annual Meeting of the IEEE-Industry-Applications-Society, New Orleans, LA, SEP 23-27, 2007Available from: 2011-03-04 Created: 2011-03-04 Last updated: 2011-03-04Bibliographically approved

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Liyanage Samaratunge, Manisha Nishamani
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