Conversion of CO 2 by Gliding Arc Plasma

Abstract

Decomposition of carbon dioxide (CO₂) 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 N₂, O₂, air, and H₂O, have been used to study the dilution effects on CO₂ conversion. A simple kinetic reaction model was developed to investigate the pathways of plasma reaction. Experimental results indicate that the conversion of pure CO₂ reaches 18% at the total gas flow rate of 0.85 L/min and produces CO and O₂ as the final products. The effects of additional gases injection are described in detail in this paper.