TY - JOUR
T1 - Effect of methane on the conversion of HFC-134a in a dielectric barrier discharge non-equilibrium plasma reactor
AU - Kundu, Sazal K.
AU - Kennedy, Eric M.
AU - Mackie, John C.
AU - Holdsworth, Clovia I.
AU - Molloy, Thomas S.
AU - Gaikwad, Vaibhav V.
AU - Dlugogorski, Bogdan Z.
PY - 2016/1/15
Y1 - 2016/1/15
N2 - The effect of methane on the conversion of HFC-134a (CF3CH2F) in a dielectric barrier discharge non-equilibrium plasma reactor was examined. Reactions were conducted in an argon bath gas and in the absence of oxygen and nitrogen. The products of the reaction include H2, HF, CHF3, CH2F2, C2H6, C3H8, C2H3F, CHF2CHF2, C2H4F2, C3H7F as well as a polymeric solid deposit. The polymeric materials are predominantly fluorine containing random copolymers, which can be categorised as fluoropolymers, constituted from various functional groups including CF3, CF2, CHF, CHF2, CH2F, CH2 and CH3. While the presence of methane in the feed stream reduces the conversion level of CF3CH2F, it also modifies the polymer architecture. The addition of 1.25% methane with 12.5% CF3CH2F in an argon bath gas at 100cm3min-1 feed rate reduces the conversion of CF3CH2F from 74.5% to 46.8% and increases the formation of HF from 1500μmolh-1 to 2640μmolh-1. The effect of methane addition on the electrical discharge and the reaction pathways are discussed.
AB - The effect of methane on the conversion of HFC-134a (CF3CH2F) in a dielectric barrier discharge non-equilibrium plasma reactor was examined. Reactions were conducted in an argon bath gas and in the absence of oxygen and nitrogen. The products of the reaction include H2, HF, CHF3, CH2F2, C2H6, C3H8, C2H3F, CHF2CHF2, C2H4F2, C3H7F as well as a polymeric solid deposit. The polymeric materials are predominantly fluorine containing random copolymers, which can be categorised as fluoropolymers, constituted from various functional groups including CF3, CF2, CHF, CHF2, CH2F, CH2 and CH3. While the presence of methane in the feed stream reduces the conversion level of CF3CH2F, it also modifies the polymer architecture. The addition of 1.25% methane with 12.5% CF3CH2F in an argon bath gas at 100cm3min-1 feed rate reduces the conversion of CF3CH2F from 74.5% to 46.8% and increases the formation of HF from 1500μmolh-1 to 2640μmolh-1. The effect of methane addition on the electrical discharge and the reaction pathways are discussed.
KW - Dielectric barrier discharge
KW - Greenhouse gas
KW - Non-equilibrium plasma
KW - Polymer characterisation
KW - Polymer from HFC-134a
UR - http://www.scopus.com/inward/record.url?scp=84941911724&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2015.08.122
DO - 10.1016/j.cej.2015.08.122
M3 - Article
AN - SCOPUS:84941911724
SN - 1385-8947
VL - 284
SP - 412
EP - 421
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
IS - January
ER -