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Titre du document / Document title

Decomposition of methane and carbon dioxide in a radio-frequency discharge

Auteur(s) / Author(s)

SAVINOV S. Y. (1) ; HWAUNG LEE (1) ; HYUNG KEUN SONG (1) ; NA B.-K. (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Clean Technology Research Center, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul 136-791, COREE, REPUBLIQUE DE

Résumé / Abstract

An experimental study of the decomposition of methane and carbon dioxide using capacitive RF discharge was investigated over a moderate range of pressures (5-60 Torr). The decomposition of methane and carbon dioxide molecules is caused by direct electron collision via excitation of the unstable electronic state. Mechanisms of dissociation of methane and carbon dioxide by electron impact were proposed and the conversions of each gas were derived from the proposed mechanisms. As a result, the conversion of each gas only depended on the specific energy of the molecules. The energy costs for the decomposition of methane and carbon dioxide could be determined through the experimental data. The major gaseous products of the decomposition of methane were hydrogen and C2 and/or C3 compounds. In the case of methane, some different reaction mechanisms were observed on the range of input power, and a small amount of film deposition inside the reactor by polymerization was observed at high input power. Carbon monoxide was mainly produced from the decomposition of carbon dioxide.

Revue / Journal Title

Industrial & engineering chemistry research    ISSN  0888-5885   CODEN IECRED 

Source / Source

1999, vol. 38, no7, pp. 2540-2547 (11 ref.)

Langue / Language

Anglais

Editeur / Publisher

American Chemical Society, Washington, DC, ETATS-UNIS  (1987) (Revue)

Mots-clés anglais / English Keywords

Chemical decomposition

;

Hydrocarbons

;

Methane

;

Carbon dioxide

;

Plasma reactor

;

Non thermal plasma

;

Capacitive discharge

;

Radiofrequency

;

Kinetics

;

Reaction mechanism

;

Experimental study

;

Mots-clés français / French Keywords

Décomposition chimique

;

Hydrocarbure

;

Méthane

;

Carbone dioxyde

;

Réacteur plasma

;

Plasma non thermique

;

Décharge capacitive

;

Radiofréquence

;

Cinétique

;

Mécanisme réaction

;

Etude expérimentale

;

Mots-clés espagnols / Spanish Keywords

Descomposición química

;

Reactor plasma

;

Plasma no térmico

;

Descarga capacitiva

;

Radiofrecuencia

;

Mecanismo reacción

;

Localisation / Location

INIST-CNRS, Cote INIST : 120 F, 35400008564958.0030

Nº notice refdoc (ud4) : 1855476



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