Enhancement of energy yield for ozone production via packed-bed reactors

Hsin Liang Chen, How Ming Lee, Moo Been Chang

Research output: Contribution to journalArticlepeer-review

37 Scopus citations


The present work aims to enhance the energy yield of ozone production via packed-bed reactors. It has been experimentally demonstrated that ozone concentration and corresponding energy yield achieved by packed-bed reactors are significantly higher than that achieved by DBD only. The so-called packed-bed reactor is constructed by packing granular dielectric pellets within a DBD reactor. Two kinds of dielectric materials including glass beads and Al 2 O 3 pellets are tested. Experimental results indicate that an ozone generator packed with Al 2 O 3 pellets results in a higher ozone production compared with one packed with glass beads. The maximum ozone production takes place when Al 2 O 3 pellets with diameter of 2 mm are packed. The maximum ozone concentration, ozone production rate, and energy yield achieved in this study are 61 gO 3 /m 3 , 3.7 gO 3 /hr, and 173 gO 3 /kWh, respectively. The highest ozone concentration and energy yield achieved with the packed-bed reactor are about 8 and 12 times high as those with DBD reactor, respectively. Although the packed-bed reactors have a shortcoming of high temperature, it can be solved by adding a cooling system and the ozone generation can be improved thereof. As a result, the packed-bed reactor is a promising and state-of-the-art technology for ozone generation based on this study.

Original languageEnglish
Pages (from-to)111-118
Number of pages8
JournalOzone: Science and Engineering
Issue number2
StatePublished - May 2006


  • Al O Pellets
  • Dielectric Barrier Discharge
  • Glass Beads
  • Ozone
  • Ozone Generation
  • Packed-Bed Reactor


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