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Influence of nitrogen on thermodynamic properties and plasma composition in discharge tube of CO-laser

Grigorian G. M., Cenian A.

Archives of Thermodynamics

2016

Vol. 37, no. 3

31--43

The role of the addition of nitrogen to the discharge plasma of CO lasers on thermodynamic properties and composition of the laser active medium is discussed here. It is shown that nitrogen addition improves laser characteristics and changes the composition of the laser active medium. The addition of nitrogen significantly decreases CO dissociation level and concentrations of C atoms created in plasma-chemical reactions of laser discharge.

Reactions of methane in dielectric-barrier discharges

Górska A., Sentek J., Krawczyk K., Schmidt-Szałowski K.

Polish Journal of Applied Chemistry

2005

Vol. 49, nr 1-2

91-100

The reactions of methane under the conditions of barrier discharges were studied in the mixtures: 1) 50% CH4+ 50% Ar, 2) 50%CH4+ 25%CO2+ 25% Ar, and 3) 50%CH4+ 50%CO2, under atmospheric pressure at about 50°C and about 300°C. Besides hydrogen, ethane was the main gaseous product of the reaction, with small additions of ethylene and acetylene. An increase of the overall methane conversion and conversion into C2 hydrocarbons was observed in cases where grains of quartz glass was packed in the discharge gap.