Application of a Scaled‐up Dielectric Barrier Discharge Reactor in the Trace Oxygen Removal in Hydrogen‐Rich Gas Mixtures at Ambient and Elevated Pressure

Dielectric barrier discharges (DBDs) are frequently utilized in various gas conversion processes. For industrial applications a low flow resistance and scalability are crucial. In this study a tenfold scaled-up reactor based on a surface dielectric barrier discharge (SDBD) was employed for the removal of oxygen traces from H2/N2/O2 gas mixtures. The conversion efficiency of the reactor with ten electrode configurations was investigated for different admixtures of O2, and high degrees of conversion were observed that decreased with increasing flow rate, but remained constant when raising the pressure to 2 bar(g). A new generator based on silicon carbide field-effect transistors (SiC-FETs) was used and compared to a generator based on classical metal oxide semiconductor field-effect transistors (MOS-FETs).