Decomposition of phosgene by microwave plasma-torch generated at atmospheric pressure

Author

Hong, Yong C. ; Uhm, Han S. ; Kim, Hyoung S. ; Kim, Moon J. ; Han, Sun H. ; Ko, Sun C. ; Park, Sang K.

Author_Institution

Dept. of Molecular Sci. & Technol., Ajou Univ., Suwon, South Korea

Volume

33

Issue

2

fYear

2005

fDate

4/1/2005 12:00:00 AM

Firstpage

958

Lastpage

963

Abstract

The microwave plasma-torch and its application for decomposition of chemical warfare agent using a moderate microwave power are investigated. Decomposition of chemical warfare agents is demonstrated for phosgene (COCl₂) as a sample example. The main byproducts of phosgene decomposition are CO and Cl₂. The Cl₂ gas was completely converted to HCl by injecting NH₃ into the microwave plasma-torch as an additive gas. The HCl is, in turn, eliminated by passing the exhaust gas through a wet-scrubber. Detailed decomposition properties of phosgene by microwave plasma-torch at the atmospheric pressure are also investigated by making use of Fourier transform infrared, mass spectroscopy, and ion chromatography.

Keywords

Fourier transform spectra; chromatography; dissociation; high-frequency discharges; infrared spectra; mass spectroscopic chemical analysis; organic compounds; plasma applications; plasma chemistry; plasma torches; Fourier transform infrared spectroscopy; atmospheric pressure; chemical warfare agent; exhaust gas; ion chromatography; mass spectroscopy; microwave plasma-torch; phosgene decomposition; wet-scrubber; Additives; Atmospheric-pressure plasmas; Chemicals; Fourier transforms; Infrared spectra; Mass spectroscopy; Microwave generation; Plasma applications; Plasma chemistry; Plasma properties; Chemical warfare agents; microwave plasma-torch; phosgene;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2005.844595

Filename

1420649