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Inhomogeneous feed gas processing in industrial ozone generation.

Fabio Krogh1, Reto Merz, Rudolf Gisler

  • 1Degremont Technologies Ltd, Stettbachstrasse 1, 8600, Dübendorf, Switzerland.

Water Science and Technology : a Journal of the International Association on Water Pollution Research
|December 19, 2008
PubMed
Summary

Exploring inhomogeneous feed gas processing in dielectric barrier discharge (DBD) ozone generators reveals that tailored plasma patterns enhance efficiency. This approach improves robustness and reduces power consumption compared to uniform plasma generation.

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Area of Science:

  • Plasma Science and Engineering
  • Chemical Engineering
  • Materials Science

Background:

  • Dielectric barrier discharge (DBD) is a key technology for industrial ozone synthesis.
  • Current ozone generators utilize uniformly distributed filamentary plasma patterns.
  • Optimization of DBD for ozone production efficiency remains an active research area.

Purpose of the Study:

  • To investigate the benefits of inhomogeneous feed gas processing in DBD ozone generators.
  • To explore the relationship between power induction, production efficiency, and operational parameters.
  • To evaluate novel electrode arrangements for tailored plasma generation.

Main Methods:

  • Design, simulation, and experimental testing of different electrode arrangements.
  • Utilized finite element modeling to simulate inhomogeneous power induction.
  • Analyzed local power density, gas temperature gradients, and DBD packing density.

Main Results:

  • The degree of plasma filamentation was identified as a critical factor for efficiency.
  • An arrangement with pronounced power induction at the generator inlet showed significant advantages.
  • Demonstrated increased robustness and reduced electrical power consumption compared to homogeneous processing.

Conclusions:

  • Tailoring plasma patterns through inhomogeneous power induction offers a new potential for optimizing ozone generators.
  • Inhomogeneous processing leads to improved performance metrics, including energy efficiency and operational stability.
  • This study highlights a promising direction for the next generation of industrial ozone synthesis technology.