Gas Phase CO2 Reduction in Microscale-Based Multi-Point Corona Reactor

In this study, test cells with needle-to-solid configuration were manufactured for the generation of multi-point negative corona discharge. Solar energy will be the final energy resource to active this process. Both dry and wet CO₂ were used as reactant respectively and can be converted within these test cells. However, the products are different for these two cases: CO and O₂ can be generated for dry CO₂ reduction, while CH₄ is the third product for wet CO₂ reduction except CO and O₂. Mean residence time and fraction of bypass area have been studied. Increase of mean residence time and decrease of fraction of bypass area favored the conversion of CO₂.