Oddelenie environmentálnej fyziky - Prihlásený: student
Katedra astronómie, fyziky Zeme a meteorológie, FMFI UK, Bratislava,

Effect of Oxygen Content on VOC Abatement in DC-Driven Discharges

Machala Z., Hensel K., Marode E.
2nd International Workshop on Cold Atmospheric Pressure Plasma Sources and Applications CAPPSA, Bruges (Belgium), August 30 - September 2, 97-101 (2005)

download  

Abstrakt:

We investigate the effect of oxygen content in the carrier air on the VOC (toluene)abatement induced by DC-driven discharges in atmospheric pressure air and nitrogen. The dischargesused are a glow discharge and a transient spark, both generating non-thermal plasmas with gastemperatures of 1000-2000 K. The discharge properties, as well as the VOC abatement process aresensitive to the oxygen content. The removal efficiency related to the energy density increases withthe increasing oxygen content, leading to oxidation products such as COx, H2O and NOx. However,the VOC abatement is feasible at the reduced oxygen content, or even in nitrogen. In suchatmospheres, less oxidation products are formed, thus promoting the formation of unsaturatedhydrocarbons, and condensed products. Water vapours in the carrier gas optimize the process byslightly increasing the efficiency and significantly reducing the noxious outlet gases due to the effectof OH radicals.

Citácie:

1.)	C.H. Zheng, X.B. Zhu, X. Gao, L. Liu, Q.Y. Chang, Z.Y. Luo, K.F. Cen: Removal of formaldehyde by a pulsed dielectric barrier discharge in dry air in the 20°C to 300°C temperature range. J. Industrial Engineering Chem. 20 (5) 2761-2768 (2014), citation no. X, WoS/SCOPUS (2014) -------------
2.)	A. N. Trushkin, I. V. Kochetov: Simulation of toluene decomposition in a pulse-periodic discharge operating in a mixture of molecular nitrogen and oxygen, Plasma Phys. Reports 38 (2012) 407-431, citation no. 12, WoS (2012) -------------
3.)	V. A. Bityurin, E. A. Filimonova, G. V. Naidis: Simulation of naphthalene conversion in biogas initiated by pulsed corona discharges, IEEE Trans. Plasma Sci. 37 (6), 911-919 (2009), citation no. 8 WoS/SCOPUS (2009) -------------