Effect of temperature on the decomposition of trifluoromethane in a dielectric barrier discharge reactor

Production of methane from carbon monoxide and carbon dioxide in a plasma-catalytic combined reactor system

“…In the literature, many studies dealing with combined use of nonthermal plasma and solid catalysis have been reported, which include oxidation of volatile organic compounds, degradation of halogenated carbons, steam reforming of hydrocarbons, CO 2 reforming of methane, etc. [10][11][12][13][14]. In a similar manner, nonthermal plasma can also promote the catalytic hydrogenation of CO and CO 2 into methane, as demonstrated in a previous study, where it was shown that the plasma signifi cantly increased the catalytic activity, especially at lower temperatures and pressures that the catalyst was not so active [15,16].…”

“…2CO * = C * + * + CO 2 (21) Just like the case of CO methanation, the hydrogenation of the adsorbed carbon proceeds stepwise by reactions (11)- (14).…”

Destruction of Fluorinated Greenhouse Gases by Using Nonthermal Plasma Process

“…Below a certain threshold temperature, the destruction efficiency slowly increased with increasing the reactor temperature, while on the other hand there was a steep increase in the destruction efficiency as the reactor temperature was further increased beyond the threshold temperature (Kim et al, 2010c;Kim and Mok, 2011). The threshold temperature was found to vary with the fluorinated compounds investigated.…”

“…However, in the case of the plasma-catalyst, the destruction efficiencies at the respective temperatures were 56% and 94%, clearly showing that there was some synergy. The synergistic effect implies that the plasma can provide some additional activation of the alumina catalyst Kim et al, 2010c). In this context, it would be advisable to combine the plasma and the catalyst rather than use them separately.…”

“…In this context, proper selection of a packing material that can in turn affect the performance of the plasma reactor is of great importance. There have been several previous articles of our research group, where the characteristics of three different packing materials such as alumina, zirconia and glass beads were comparatively examined (Kim et al, 2010a(Kim et al, , 2010b2010c;Kim & Mok, 2011a). In those articles, the destruction behaviors of the fluorinated compounds were characterized with respect to electric power and reactor temperature, and the effects of several other variables on the destruction were evaluated.…”