Title :
Experimental results comparing pulsed corona and dielectric barrier discharges for pollution control
Author :
Korzekwa, R. ; Rosocha, L. ; Falkenstein, Z.
Author_Institution :
Los Alamos Nat. Lab., NM, USA
fDate :
June 29 1997-July 2 1997
Abstract :
A comparison has been made of the gaseous pollution removal efficiency for three different nonthermal plasma reactors. A pulsed corona discharge and a low-frequency AC-driven dielectric-barrier discharge had similar removal efficiencies for trichloroethylene (TCE), methyl ethyl ketone (MEK) and methylene chloride (MECL) in dry air at room temperature. Also, the removal efficiency was similar between both a pulsed and AC-driven dielectric barrier discharge for TCE in dry air at room temperature. Even though a large increase in breakdown field occurs in pulsed discharges, the similarity in removal efficiency can be explained if the chemical reaction pathways for these compounds in dry air are oxygen atom-initiated. The change in removal efficiency with gas temperature is pronounced for MECL in air but has a weaker dependence for MEK in air which is consistent with the rate-constant temperature dependence found in the literature.
Keywords :
pulsed power technology; air emissions control; breakdown field; chemical reaction pathways; dielectric barrier discharge; gas temperature; gaseous pollution removal efficiency; methyl ethyl ketone; methylene chloride; nonthermal plasma reactors; pulsed corona discharge; pulsed power supplies; rate-constant temperature dependence; trichloroethylene; Atmospheric-pressure plasmas; Corona; Dielectrics; Electron tubes; Fault location; Inductors; Plasma chemistry; Plasma devices; Pollution; Pulse transformers;
Conference_Titel :
Pulsed Power Conference, 1997. Digest of Technical Papers. 1997 11th IEEE International
Conference_Location :
Baltimore, MA, USA
Print_ISBN :
0-7803-4213-5
DOI :
10.1109/PPC.1997.679283
