Hexane decomposition without particle emission using a novel dielectric barrier discharge reactor filled with porous dielectric balls

Abatement of VOCs Using Packed Bed Non-Thermal Plasma Reactors: A Review

“…When an external ac voltage beyond onset voltage is applied across a dielectric barrier with higher dielectric constant, an intense electric field is produced in the area near the contact point of the pellets and results in a combination of surface discharges on the packing pellets and filamentary discharges in the voids [43,93]. As shown Packing material with a higher dielectric constant decreases the breakdown voltage [91] and enhances the electric field resulting in enhanced VOC removal efficiency [92]. Zheng et al [88] pointed out that the packing material with higher dielectric constant (γ-Al 2 O 3 ) enhances the removal efficiency of acetone when compared to glass beads.…”

“…The discharge current increases with increase in the dielectric constant of the pellet and it is maximum for the pellet of dielectric constant 10 4 . Packing material with a higher dielectric constant decreases the breakdown voltage [91] and enhances the electric field resulting in enhanced VOC removal efficiency [92]. Zheng et al [88] pointed out that the packing material with higher dielectric constant (γ-Al2O3) enhances the removal efficiency of acetone when compared to glass beads.…”

Removal of toluene as a toxic VOC from methane gas using a non-thermal plasma dielectric barrier discharge reactor

“…15 The treatment of pollutants via NTP is mostly carried using a dielectric barrier discharge (DBD) due to its ease of operation and the availability of an efficient and economical power supply. [16][17][18][19][20][21][22][23] Due to the combined effect of non-equilibrium plasma properties and ease of operation at ambient pressure, DBD reactors are being used for industrial applications. 24,25 The ability of the DBD reactor to simple scaling up is also a wellknown feature for the commercial applicability of this process.…”

A Novel Four-Way Plasma-Catalytic Approach for The After-Treatment of Diesel Engine Exhausts

“…γ-Al 2 O 3 balls were used because of their large surface area, good mechanical and chemical stability, and excellent nanoparticle trap ability. 30 CaSO 4 and Au were used as catalysts because CaSO 4 has a good ability for the plasma-catalytic oxidation of DPM, 25 while Au has a high activity for the simultaneous removal of NOx, HCs, and CO at low temperatures. 31 The activity of plasma-catalytic oxidation was evaluated by DPM oxidation efficiency because the DPM is the most important emission that needs to be removed from diesel exhaust.…”

“…Herein, we report a novel four-way plasma-catalytic removal of DPM, CO, HCs, and NOx without external heating for the first time using a pulsed DBD reactor combined with Au/CaSO 4 /γ-Al 2 O 3 catalyst balls. γ-Al 2 O 3 balls were used because of their large surface area, good mechanical and chemical stability, and excellent nanoparticle trap ability . CaSO 4 and Au were used as catalysts because CaSO 4 has a good ability for the plasma-catalytic oxidation of DPM, while Au has a high activity for the simultaneous removal of NOx, HCs, and CO at low temperatures .…”