Non-thermal Plasma Abatement Of
Trichloroethylene With DC Corona Discharges
Author(s)
A. M. Vandenbroucke, A. Vanderstricht, M. T. Nguyen Dinh,
J.-M. Giraudon, R. Morent, N. De Geyter, J.-F. Lamonier
& C. Leys
Abstract
The decomposition of trichloroethylene (TCE) in air by non-thermal plasma was
investigated with a multi-pin-to-plate direct current (DC) discharge at
atmospheric pressure and room temperature. The effects of various operating
parameters on the removal efficiency (RE) were examined. The experiments
indicated that for low energy densities higher removal could be obtained with
positive corona. For negative corona and 10% relative humidity (RH) a
maximum RE of 99.5% could be achieved at 1100 J L-1. Formation of byproducts
was qualitatively analyzed in detail with FT-IR spectroscopy and mass
spectrometry. Detected by-products for negative corona operated at 300 J L-1 and
10% RH include dichloroacetylchloride, trichloroacetaldehyde, phosgene, ozone,
HCl, Cl2, CO and CO2. The highest RE for TCE was achieved with a relative
humidity of 19%.
Keywords: non-thermal plasma, volatile organic compounds, trichloroethylene,
by-products.
1 Introduction
Many organic solvents used in metal, semiconductor and chemical industry have
good physical and chemical properties and are therefore useful during the
manufacturing process. Despite their good commercial value, most of them have
a high volatility causing them to easily evaporate at ambient conditions. As a
result the process waste gases are frequently contaminated with volatile organic
Keywords
non-thermal plasma, volatile organic compounds, trichloroethylene,
by-products
Related Book
Other papers in this volume
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