Ozone Generation from Argon-Oxygen Mixtures in Presence of Different Packing Materials within Dielectric Barrier Discharge Gap

Abstract

Assessments of ozone yield and concentration in Dielectric Barrier Discharge of argon-oxygen mixtures in presence of various packing materials are discussed. These include zeolite molecular sieve 13X pellets, Pyrex beads, Pyrex wool, and porous TiO₂-beads, which presented differential reactive surfaces, nano cavities, photo-catalysis, and dissimilar ionic environments. Their utility was evaluated in conjunction with varied gas composition, flow rate, and electrical inputs. In a mixture of 3–21% O₂ in argon, the ozone concentration ranged between 16–980 ppm, simultaneous measurements of in situ energy dissipation revealed its yield, G(O₃) to change independently from 0.002 to 2.020 μmol J⁻¹. TiO₂ packing emerged as the most versatile material to produce O₃ in high concentration and yield.

Keywords:

• Ozone
• Dielectric Barrier Discharge
• Concentration
• Yield
• Packing
• Molecular Sieve
• Pyrex Bead
• Pyrex Wool
• Titania Bead

ACKNOWLEDGMENTS

This research was carried out under the XIth Plan Sub-project 27_R&D_N_34.06. The authors thank DAE and BARC for the funding. The authors are indebted to one of the reviewers for a critical evaluation, and offering various suggestions.