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Studies on Nitrogen Oxide Removal Using Plasma Assisted Catalytic Reactor

Ravi, V and Young Sun, Mok and BS, Rajanikanth and Ho-Chul, Kang (2003) Studies on Nitrogen Oxide Removal Using Plasma Assisted Catalytic Reactor. In: Plasma Science and Technology, 5 (6). pp. 2057-2062.

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Abstract

An electric discharge plasma reactor combined with a catalytic reactor was studied for removing nitrogen oxides. To understand the combined process thoroughly, discharge plasma and catalytic process were separately studied first, and then the two processes were combined for the study. The plasma reactor was able to oxidize NO to $NO_2$ well although the oxidation rate decreased with temperature. The plasma reactor alone did not reduce the $NO_x (NO+NO_2)$ level effectively, but the increase in the ratio of $NO_2$ to NO as a result of plasma discharge led to the enhancement of $NO_x$ removal efficiency even at lower temperatures over the catalyst surface $(V_2O_5-WO_3/TiO_2)$. At a gas temperature of 100°C, the $NO_x$ removal efficiency obtained by using the combined plasma catalytic process was 88% for an energy input of 36 eV/molecule or 30 J/l.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Institute of Physics.
Keywords: Non-thermal plasma;Catalytic process;Oxidation;NOx;Removal
Department/Centre: Division of Electrical Sciences > High Voltage Engineering (merged with EE)
Date Deposited: 25 Apr 2007
Last Modified: 19 Sep 2010 04:37
URI: http://eprints.iisc.ernet.in/id/eprint/10675

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