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Progress in Plasma Processing of Materials, 2003

ISBN:
978-1-56700-192-1 (Print)
978-1-56700-447-2 (Online)

EXPERIMENTAL AND SIMULATION STUDY OF NOx REMOVAL WITH A DBD WIRE-CYLINDER REACTOR

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

E. Santirso
Laboratoire de Genie des Precedes Plasmas et Traitements de Surfaces Universite Pierre et Marie CURIE (Paris VI) ENSCP - 11, roe Pierre et Marie CURIE 75231 PARIS cedex 05 - France

M. Moscosa
Laboratoire de Genie des Precedes Plasmas et Traitements de Surfaces Universite Pierre et Marie CURIE (Paris VI) ENSCP - 11, roe Pierre et Marie CURIE 75231 PARIS cedex 05 - 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

Our goal is to develop a wire-cylinder dielectric barrier discharge reactor for NOx removal from a gas mixture (O2:10%, CO2:10%, H20:5%, C3H6:1000ppmv, N0:250 to lOOOppmv, N2: balance). The NO conversion has been investigated depending on energy density and the by-products (essentially aldehydes and R-NOx) have been identified by GC-MS. Isotopic labeling of the 02 introduced helps to elucidate the reaction mechanisms leading to the formation of those by-products. For each experiment, the electrical characterization of the discharge has been carried with a digital oscilloscope, giving the measurement of the voltage, the current, the power and the electrical charge of the plasma pulses. In the second part, we simulate the NO conversion in a tubular reactor with multiple O* injections in order to qualify the role of the oxygen atoms produced by the electrical pulses.