Journal article
Gas-phase reaction of halon 1211 (CBrClF2) with methane
Industrial & Engineering Chemistry Research, Vol.40(14), pp.3139-3143
2001
Abstract
The nonoxidative gas-phase reaction of halon 1211 (CBrClF2) with methane was studied using a tubular plug-flow alumina reactor at atmospheric pressure, over the temperature range of 673-1073 K, and at residence times between 0.1 and 1.3 s. With an equimolar feed of CBrClF2 and CH4, complete halon conversion was achieved at 1073 K for all residence times considered. The initial products of the reaction are CHClF2 and CH3Br, which are replaced by C2H2F2 at elevated temperatures. We suggest C2H2F2 is produced from the direct coupling of CH3 and CF2Cl radicals, which rapidly decompose to C2H2F2 and HCl. Minor products formed during reaction include C2H3F, CHF3, C2F4, CHBrF2, and C2HBrF2. The formation of CHClF2, C2F4, CHBrF2, and C2HClF2 was observed to reach a maximium at specific residence times, and formation of soot was detected above 943 K. Possible mechanistic pathways for major and some minor species are discussed.
Details
- Title
- Gas-phase reaction of halon 1211 (CBrClF2) with methane
- Authors/Creators
- R. Tran (Author/Creator) - University of Newcastle AustraliaE.M. Kennedy (Author/Creator) - University of Newcastle AustraliaB.Z. Dlugogorski (Author/Creator) - University of Newcastle Australia
- Publication Details
- Industrial & Engineering Chemistry Research, Vol.40(14), pp.3139-3143
- Publisher
- American Chemical Society
- Identifiers
- 991005542585707891
- Copyright
- © 2001 American Chemical Society
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 7 Engineering & Materials Science
- 7.177 Combustion
- 7.177.238 Combustion Dynamics
- Web Of Science research areas
- Engineering, Chemical
- ESI research areas
- Chemistry