Determination of the Conversion and Efficiency for CO 2 in an Atmospheric Pressure Microwave Plasma Torch

In a 2.45 GHz plasma torch, carbon dioxide (CO2) has been converted into monoxide (CO) and oxygen (O2) at atmospheric pressure. The conversion the efficiency of have determined using two independent measuring methods: mass spectrometry Fourier transform infrared absorption spectroscopy. depends on measurement position in exhaust gas duct. values beginning duct are significantly higher (maximum is 22 %) than thermalized state end cold, gas, maximum rate 8 % 1.5 eV molecule−1. 25 achieved approximatively 0.6 molecule−1 operating microwave power 0.48 kW flow 12 slm CO2.