Absorption spectra of hydrogen chloride and carbon monoxide in smoke

Author

Shimizu, Naofumi ; Matsuyama, Ken ; Hosako, Iwao

Author_Institution

NTT Microsyst. Integration Labs., Nippon Telegraph & Telephone Corp., Atsugi, Japan

fYear

2012

fDate

23-28 Sept. 2012

Firstpage

1

Lastpage

2

Abstract

Absorption spectra of smoke produced from polyvinyl chloride (PVC) and molded charcoal at high temperature are investigated between 500 and 950 GHz. Observed peaks at 626 GHz for PVC and at 692 and 921 GHz for molded charcoal are respectively assigned as the spectral signature of hydrogen chloride and carbon monoxide contained in smoke. Smoke from molded charcoal also showed absorption peaks of hydrogen cyanide that are likely produced by the combustion of adhesive matter in it. These results show the potential of sub-terahertz spectroscopic sensing for instantaneous detection and quantification of multiple harmful gaseous substances in smoke.

Keywords

air pollution measurement; atmospheric techniques; carbon compounds; combustion; hydrogen compounds; smoke; spectrochemical analysis; terahertz wave spectra; CO; HCN; HCl; adhesive matter combustion; carbon monoxide spectral signature; frequency 500 GHz to 950 GHz; harmful gaseous substances; hydrogen chloride spectral signature; hydrogen cyanide absorption peaks; instantaneous gas detection; instantaneous gas quantification; molded charcoal; polyvinyl chloride; smoke absorption spectra; smoke carbon monoxide content; smoke hydrogen chloride content; subterahertz spectroscopic sensing; Absorption; Carbon; Combustion; Frequency measurement; Heating; Hydrogen; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on

Conference_Location

Wollongong, NSW

ISSN

2162-2027

Print_ISBN

978-1-4673-1598-2

Electronic_ISBN

2162-2027

Type

conf

DOI

10.1109/IRMMW-THz.2012.6380330

Filename

6380330