Progress in Plasma Processing of Materials, 2003

ISBN Print: 978-1-56700-192-1

ISBN Online: 978-1-56700-447-2

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

DOI: 10.1615/ITPPC-2002.790
pages 661-669

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.