Conversion of CO₂ by Gliding Arc Plasma

Abstract

Decomposition of carbon dioxide (CO 2 ) by gliding arc plasma was examined. The plasma device consisted of two or four triangular stainless steel plates. The gas enters through a nozzle tube from the upper part of the cylindrical reactor and exits at the bottom part of the reactor. Some additional gases, such as N 2 , O 2 , air, and H 2 O, have been used to study the dilution effects on CO 2 conversion. A simple kinetic reaction model was developed to investigate the pathways of plasma reaction. Experimental results indicate that the conversion of pure CO 2 reaches 18% at the total gas flow rate of 0.85 L/min and produces CO and O 2 as the final products. The effects of additional gases injection are described in detail in this paper.

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