Ozone production from corona discharge

COMMERCIAL OZONE PRODUCTION FROM ELECTRICAL DISCHARGE

The most common method of producing ozone commercially and industrially is electrical discharge, or corona discharge. A corona discharge is simply a diffused spark through a dielectric to spread out that electrical discharge to a large area for maximum efficiency.

ozone production from corona discharge
Corona discharge ozone generator

There are many types and styles of corona discharge ozone generators. These go by many names, but are fundamentally the same, using these components:

  • Corona cell using a dielectric
    • Dielectric material may be glass, ceramic, or quartz
    • Dielectric may be conical, or flat plate
  • High voltage transformer to increase voltage of the electrical discharge
  • Power supply to regulate power to transformer
    • 60Hz machines will only regulate the voltage to the transformer
    • High frequency machines (greater than 60 Hz) will regulate frequency and/or voltage to transformer

 

ADVANTAGES OF CORONA DISCHARGE OZONE GENERATOR

  • Scalable and can create very large amounts of ozone
  • Creates ozone at medium to high ozone concentrations (up to 30% by weight)
  • Cost effective for long term operation
  • Low maintenance

DISADVANTAGES OF CORONA DISCHARGE OZONE GENERATOR

  • High cost for initial capital investment
  • Creates excess heat that must be removed for efficient operation
  • Requires very clean, dry air/oxygen feed-gas for reliable operation

Ozone Production – How Ozone is Produced