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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
SJR: 0.137 SNIP: 0.341 CiteScore™: 0.43

ISSN Imprimir: 1093-3611
ISSN En Línea: 1940-4360

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

DOI: 10.1615/HighTempMatProc.v13.i1.80
pages 107-119

AROMATIC VOC REMOVAL BY MICROPARTICLES FORMATION IN PURE NITROGEN

S. Ognier
Laboratoire de Génie des Procédés Plasmas et Traitement de Surface, Ecole Nationale Supérieure de Chimie de Paris 11 rue Pierre et Marie Curie, 75005 Paris, France
S. Cavadias
Laboratoire Genie Precedes Plasmas - ENSCP 11, rue Pierre et Marie Curie - 75005 Paris- France
Jacques Amouroux
Laboratoire de Genie des Precedes Plasmas Universite P. et M. Curie, ENSCP 11 rue P. et M. Curie 75005 Paris France

SINOPSIS

The reactivity of toluene in a DBD discharge was studied for two different mixtures: 400 ppm of toluene diluted in synthetic air (80% N2 + 20% O2) or in pure N2. The reactivity was compared in terms of pollutant conversion and by-products formation. Regarding the pollutant conversion, the destruction efficiency was comparable with or without oxygen. However, the decomposition of toluene in pure N2 leads to the formation of micrometric particles. These particles could be easily removed by filtration. On the contrary, in the case of a DBD treatment in air, 50% of the destroyed pollutant was oxidized in CO and CO2. The other products that could be detected were ring retaining (nitroaromatics) or non ring-retaining products. In both case, the analyses of the species produced in gas-phase using GC-MS technique allows the determination of the reaction pathways.

PALABRAS CLAVE: VOC, plasma, DBD discharge, depollution