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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
SJR: 0.19 SNIP: 0.341 CiteScore™: 0.43

ISSN Print: 1093-3611
ISSN Online: 1940-4360

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

DOI: 10.1615/HighTempMatProc.v6.i2.40
14 pages

CHARACTERIZATION OF THE CHEMICAL BEHAVIOR OF A DBD WIRE-CYLINDER REACTOR FOR NOx REMOVAL. DETERMINATION OF REACTIONAL PATHWAYS BY ISOTOPIC LABELING

A. Vincent
Laboratoire de Genie des Precedes Plasmas et Traitements de Surfaces Universite Pierre et Mane CURIE (Paris VI) ENSCP - 11, ше Pierre et Marie CURIE 75231 PARIS cedex 05 - France
F. Daou
Laboratoire de Génie des Procédés Plasmas et Traitement de Surfaces, 11 rue Pierre et Marie Curie, 75231 Paris Cedex France
Jacques Amouroux
Laboratoire de Genie des Precedes Plasmas Universite P. et M. Curie, ENSCP 11 rue P. et M. Curie 75005 Paris France

ABSTRACT

The aim of this work is to determine the chemical reactivity of the DBD wire-cylinder reactor in order to control the NOx removal in a mixture of gases representing exhaust engine gases. Therefore we will qualify and quantify the major by-products of the treatment of an O2 (10%), CO2 (10%), Н2О (5.4%), С3Н6 (1000ppmv), NO (1000ppmv) and N2 (balance) mixture at atmospheric pressure and 100°C. We can observe the presence of VOC's like aldehyde (especially formaldehyde, acetaldehyde and propanal) and of R-NOx (particularly СН3-O-NO2, nitromethane and C2H5-O-NO2). We can also notice the increase of these by-products with the increase of the energy density. Finally, we demonstrate that the creation of R-NOx is due to the oxidation of С3Н6 fragments by О2 and not by CO2 contrary to acetaldehyde and propanal.


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