Journal article
Study on the reaction of CCl2F2 with CH4 in a dielectric barrier discharge nonequilibrium plasma
Plasma Processes and Polymers, Vol.10(10), pp.912-921
2013
Abstract
The reaction of CCl2F2 (CFC-12) with methane (in an argon bath gas) in a dielectric barrier discharge (DBD) non-thermal plasma reactor at atmospheric pressure has been investigated. The reaction (where oxygen and nitrogen are excluded from the feed gas) produced a range of gas phase products, including H2, HCl, HF, CHF3, CF 3CH2F, CHClF2, CH3Cl, CH 2ClF, CH2Cl2, CHCl2F and CHCl 3 as well as solid products which were primarily non-crosslinked polymers. The conversion of CCl2F2 increased, from 44 to 71%, when the input energy density of the plasma was raised from 3 to 13 kJ · L-1 (applied voltage range is 13.4-14.8 kV, peak-peak). The relatively low input feed concentration of CCl2F2 and methane in the argon bath gas modifies the strong filamentary appearance of the pure argon discharge to a more diffuse appearance. The refrigerant CFC-12, harmful for atmospheric ozone layer and a major contributor to global warming, is treated with methane, in an argon bath gas and in the absence of oxygen and nitrogen using a dielectric barrier discharge nonequilibrium plasma reactor. Significant levels of CFC-12 conversion are achieved at temperatures below 100 °C and the process avoids producing toxic chemicals like CO and HCN. A simplified reaction mechanism is presented.
Details
- Title
- Study on the reaction of CCl2F2 with CH4 in a dielectric barrier discharge nonequilibrium plasma
- Authors/Creators
- S.K. Kundu (Author/Creator) - University of Newcastle AustraliaE.M. Kennedy (Author/Creator) - University of Newcastle AustraliaJ.C. Mackie (Author/Creator) - University of Newcastle AustraliaC.I. Holdsworth (Author/Creator) - University of Newcastle AustraliaT.S. Molloy (Author/Creator) - University of Newcastle AustraliaV.V. Gaikwad (Author/Creator) - University of Newcastle AustraliaB.Z. Dlugogorski (Author/Creator) - University of Newcastle Australia
- Publication Details
- Plasma Processes and Polymers, Vol.10(10), pp.912-921
- Publisher
- Wiley-VCH Verlag
- Identifiers
- 991005542517307891
- Copyright
- © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 5 Physics
- 5.202 Plasma Physics
- 5.202.388 Plasma Discharges
- Web Of Science research areas
- Physics, Applied
- Physics, Condensed Matter
- Physics, Fluids & Plasmas
- Polymer Science
- ESI research areas
- Chemistry