Carbon dioxide conversion in microwave discharge plasma with counter-flow gas quenching

Decomposition of carbon dioxide in plasma supported by magnetron radiation with a frequency of 2.45 GHz in the flow of carbon dioxide at atmospheric pressure has been studied. It is shown that quenching of reaction products by a counter flow of gas, more than 1.5 times increases the degree of conversion and energy efficiency of carbon dioxide decomposition. At record values of energy efficiency of 43.9% and conversion rate of 14.3%, the carbon monoxide yield with productivity of 0.2 kg/h at microwave radiation energy consumption of 6.5 kWh/kg is provided.