Effect of packing material on methane activation in a dielectric barrier discharge reactor

Abstract

The conversion of methane is measured in a planar-type dielectric barrier discharge reactor using c-Al 2 O 3 (sphere), a-Al 2 O 3 (sphere), and c-Al 2 O 3 (16-20 mesh). Investigations on the surface properties and shape of the three packing materials clearly indicate that methane activation is considerably affected by the material used. Capacitances inside the discharge gap are estimated from charge-voltage plots, and a comparison of the generated and transferred charges for different packing conditions show that the difference in surface properties between c-and a-phase Al 2 O 3 affects the discharge characteristics. Moreover, all packing conditions show different charge characteristics that are related to the electron density. Finally, the packing material's shape affects the local electron temperature, which is strongly related to methane conversion. The combined results indicate that both microscale and macroscale variations in a packing material affect the discharge characteristics, and a packing material should be considered carefully for effective methane activation. V C 2013 AIP Publishing LLC. [http://dx.

Pulsed dry methane reforming in plasma-enhanced catalytic reaction

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Product analysis of methane activation using noble gases in a non-thermal plasma

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“…Tao et al reviewed several results using plasma under dry-reforming conditions [13]. Along these lines, we have investigated the influence of reactant compositions and catalyst properties on discharge characteristics, as well as the correlation between plasma and methane conversion [14][15][16][17].…”

Plasma‐activated methane partial oxidation reaction to oxygenate platform chemicals over Fe, Mo, Pd and zeolite catalysts

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