Experimental investigation of the reaction of HCFC-22 and methane in a dielectric barrier discharge non-equilibrium plasma

Sazal K. Kundu, Eric M. Kennedy, John C. Mackie, Clovia I. Holdsworth, Thomas S. Molloy, Vaibhav V. Gaikwad, Bogdan Z. Dlugogorski

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Abstract

A dielectric barrier discharge non-equilibrium plasma was employed to study the reaction of HCFC-22 (CHClF2) with methane (in an argon bath gas) at atmospheric pressure and in the absence of oxygen and nitrogen. The reaction produced a fluorine-containing polymeric product, as well as gaseous species including H2, HF, HCl, CHF3, C2H3F, CH3Cl, CH2ClF, C2HClF4, CHCl2F, CH2Cl2 and CCl2F2. While the main polymeric fraction is non-crosslinked, a small portion of the solid product is crosslinked. The polymers contain a wide range of functional groups including CH3, CH2, CHCl, CHF, CHClF, CHF2, CF2 and CF3. The conversion level of CHClF2 increased from 53% to 78%, with an increment in input energy density from 3 kJ L-1 to 13 kJ L-1. A reaction mechanism is proposed explaining the formation of gaseous as well as polymeric products.

Original languageEnglish
Pages (from-to)73-82
Number of pages10
JournalChemical Engineering Journal
Volume301
Issue numberOctober
Early online date26 Apr 2016
DOIs
Publication statusPublished - 1 Oct 2016
Externally publishedYes

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Kundu, S. K., Kennedy, E. M., Mackie, J. C., Holdsworth, C. I., Molloy, T. S., Gaikwad, V. V., & Dlugogorski, B. Z. (2016). Experimental investigation of the reaction of HCFC-22 and methane in a dielectric barrier discharge non-equilibrium plasma. Chemical Engineering Journal, 301(October), 73-82. https://doi.org/10.1016/j.cej.2016.04.133