10.1021/jp311912b.s001
Ramses Snoeckx
Ramses
Snoeckx
Robby Aerts
Robby
Aerts
Xin Tu
Xin
Tu
Annemie Bogaerts
Annemie
Bogaerts
Plasma-Based Dry Reforming: A Computational Study
Ranging from the Nanoseconds to Seconds Time Scale
American Chemical Society
2016
pulse
DBD
dielectric barrier discharge
CH 4
conversion
Seconds Time ScaleWe
chemical
microdischarge
dielectric barrier discharge reactor
CO 2
plasma
filamentary discharge regime
2016-02-19 18:06:19
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Plasma_Based_Dry_Reforming_A_Computational_Study_Ranging_from_the_Nanoseconds_to_Seconds_Time_Scale/2434510
We present a computational study
for the conversion of CH<sub>4</sub> and CO<sub>2</sub> into value-added
chemicals, i.e., the so-called
“dry reforming of methane”, in a dielectric barrier
discharge reactor. A zero-dimensional chemical kinetics model is applied
to study the plasma chemistry in a 1:1 CH<sub>4</sub>/CO<sub>2</sub> mixture. The calculations are first performed for one microdischarge
pulse and its afterglow, to study in detail the chemical pathways
of the conversion. Subsequently, long time-scale simulations are carried
out, corresponding to real residence times in the plasma, assuming
a large number of consecutive microdischarge pulses, to mimic the
conditions of the filamentary discharge regime in a dielectric barrier
discharge (DBD) reactor. The conversion of CH<sub>4</sub> and CO<sub>2</sub> as well as the selectivity of the formed products and the
energy cost and energy efficiency of the process are calculated and
compared to experiments for a range of different powers and gas flows,
and reasonable agreement is reached.