Electron-impact ionization of air molecules and its application to the abatement of volatile organic compounds

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In this paper the authors present data on the non-thermal plasma processing of two representative VOCs: carbon tetrachloride and methanol. The investigation used a compact electron beam reactor, and two types of discharge reactors: a pulsed corona and a dielectric-barrier discharge. To the knowledge of the authors, this is the first comparison of the energy efficiency of electron beam, pulsed corona and dielectric-barrier discharge processing of these VOCs under identical gas conditions. For most electrical discharge reactors the analysis suggests that the attainable electron mean energy is rather limited and cannot be significantly enhanced by changing the electrode configuration or ... continued below

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17 p.

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Penetrante, B.M.; Hsiao, M.C.; Bardsley, J.N.; Merritt, B.T.; Vogtlin, G.E.; Wallman, P.H. et al. May 21, 1995.

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Description

In this paper the authors present data on the non-thermal plasma processing of two representative VOCs: carbon tetrachloride and methanol. The investigation used a compact electron beam reactor, and two types of discharge reactors: a pulsed corona and a dielectric-barrier discharge. To the knowledge of the authors, this is the first comparison of the energy efficiency of electron beam, pulsed corona and dielectric-barrier discharge processing of these VOCs under identical gas conditions. For most electrical discharge reactors the analysis suggests that the attainable electron mean energy is rather limited and cannot be significantly enhanced by changing the electrode configuration or voltage waveform. The experimental data confirms that there is no significant difference in the performance of the pulsed corona and dielectric-barrier discharge reactors. The authors observe that electron beam processing is remarkably more energy efficiency than electrical discharge processing in decomposing either of these VOC molecules. During electron beam processing, the specific energy consumption is consistent with the energy required for the ionization of the background air molecules. For carbon tetrachloride, the dominant decomposition pathway is dissociative electron attachment. For methanol, the dominant decomposition pathway is dissociative charge exchange.

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17 p.

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OSTI as DE96005314

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  • NATO advanced study institute on molecular physics and hypersonic flows, Maratea (Italy), 21 May - 3 Jun 1995

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  • Other: DE96005314
  • Report No.: UCRL-JC--122546
  • Report No.: CONF-9505325--1
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 201719
  • Archival Resource Key: ark:/67531/metadc669387

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  • May 21, 1995

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  • June 29, 2015, 9:42 p.m.

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  • Aug. 23, 2016, 3:02 p.m.

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Penetrante, B.M.; Hsiao, M.C.; Bardsley, J.N.; Merritt, B.T.; Vogtlin, G.E.; Wallman, P.H. et al. Electron-impact ionization of air molecules and its application to the abatement of volatile organic compounds, article, May 21, 1995; California. (digital.library.unt.edu/ark:/67531/metadc669387/: accessed November 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.