Thermally stimulated discharge pressure

The highest energy efficiency of CO2 dissociation in plasma can be achieved through its stimulation by vibrational excitation. This mechanism permits, in particular, 80% energy efficiency to be reached in non-thermal microwave discharges of moderate pressure (see Section 5.5.2). The main cause of energy losses in these systems is VT relaxation from low vibrational levels of CO2 molecules, which decreases exponentially with reduction of translational gas temperature. A significant decrease of translational gas temperatures (to... 

The energy efficiency of this plasma-chemical process can be high, because it ean be effectively stimulated in non-equilibrium discharges by vibrational excitation of CO2 molecules. A relatively high process efficiency was achieved in experiments with non-thermal microwave discharge at moderate pressures (Garsky, Givotov, Ivanov, 1981). 

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