Dissociation of CO/sub 2/ by a plasma-chemical process in a nonequilibrium microwave discharge

Journal Article · Fri May 01 04:00:00 EDT 1981 · Sov. Phys. - Tech. Phys. (Engl. Transl.); (United States)

OSTI ID:5698688

Butylkin, Y P; Zhivotov, V K; Krasheninnikov, E G; Krotov, M F; Rusanov, V D; Tarasov, Y V; Fridman, A A

We consider the dissociation of CO/sub 2/ in a nonequilibrium microwave discharge of moderate pressure. The optimum discharge parameters (degree of ionization, electron temperature, and specific energy input) are found for which up to 80% of the energy input to the plasma is consumed in producing CO. It is shown that such a high energy efficiency is a consequence of the significantly nonequilibrium character of the process (T/sub e/>>T/sub 0/) and results from the dissociation occurring predominantly through the antisymmetric vibration mode of CO/sub 2/. Conclusions about the mechanism and the optimum dissociation regimes were drawn on the basis of diagnostic investigations of the chemical composition of the products, the electron density and temperature, the antisymmetric and symmetric vibration temperatures, and also the translational and rotational temperatures of the neutral components.

• OSTI ID: 5698688
• Journal Information: Sov. Phys. - Tech. Phys. (Engl. Transl.); (United States), Journal Name: Sov. Phys. - Tech. Phys. (Engl. Transl.); (United States) Vol. 26:5; ISSN SPTPA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
DISSOCIATION
ELECTRIC DISCHARGES
ELECTRON DENSITY
ELECTRON TEMPERATURE
HIGH-FREQUENCY DISCHARGES
IONIZATION
OSCILLATION MODES
OXIDES
OXYGEN COMPOUNDS
PLASMA
PLASMA DIAGNOSTICS
PRESSURE DEPENDENCE