Dry Reforming of Methane in a Rotating Gliding Arc Plasma: Improving Efficiency and Syngas Cost by Quenching Product Gas

Improving the Performance of Gliding Arc Plasma-Catalytic Dry Reforming Via a New Post-Plasma Tubular Catalyst Bed

“…The different tendency changes for CO 2 and CH 4 in the T-bed cases could imply that a possible backflow to some degree was beneficial for CO 2 but inhibited to some extent the CH 4 dissociation, but further research is needed to confirm this. The decreasing effect of Ni-based catalysts (loaded on Al 2 O 3 and SiO 2 ) on the conversions in plasma-catalytic DRM in a GA plasma system was also reported in literature [43]. The influence disappeared when the distance of the T-bed to the plasma exhaust was increased to 4 cm, which could be due to a weakened effect of the backflow.…”

“…However, the classical two-dimensional (2D) GA plasma is still facing limitations, such as limited conversion of 10-40%, because a considerable fraction of feed gas does not pass through the plasma region [37][38][39][40][41]. Therefore, new designs were developed with improvements of cylindrical electrodes and tangential gas entrances, which allow the formation of a vortex flow, resulting in longer residence times and eventually higher conversions of 14-65% [8,[30][31][32]42,43]. Among them, a gliding arc plasmatron (GAP), developed by Nunnally et al [44], showed high potential for DRM [8,30,31].…”