Research on Decomposition of Carbon Dioxide by High Frequency Dielectric Barrier Discharge

The greenhouse effect as well as its induced global warming is one of important global environmental issues. To control greenhouse gas CO₂, the decomposition of CO₂ by high frequency dielectric barrier discharge was studied. The effect of applied voltage, frequency, cooling method and CO₂ concentration on the decomposition characteristic of CO₂ was investigated. The results showed that the decomposition of CO₂ could be enhanced by increasing applied voltage or frequency within limits. Circulated water cooling or air cooling to reactor was helpful to decomposition of CO₂ for controlling the secondary reaction. Although decreasing the CO₂ concentration by mixing it with inert gases could increase the decomposition of CO₂, the energy efficiency reduced.