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[Method on ozone generation with strong ionization discharge].

Z Zhang1, H Han, Q Chu

  • 1Environmental Engineering Research Institute, Dalian Maritime University, Dalian 116026, China.

Huan Jing Ke Xue= Huanjing Kexue
|July 4, 2001
PubMed
Summary
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New dielectric barrier discharge methods achieve strong ionization for efficient ozone generation. This technology enables high ozone concentration and production efficiency in a compact design.

Area of Science:

  • Plasma physics
  • Chemical engineering
  • Materials science

Context:

  • Dielectric barrier discharges (DBD) are crucial for plasma chemistry, particularly ozone generation.
  • Controlling ozone formation and decomposition relies on electric field intensity and electron energy.
  • Existing methods face limitations in efficiency and scalability.

Purpose:

  • To introduce novel methods for strong ionization discharge in dielectric barrier reactors.
  • To enhance ozone generation efficiency and concentration.
  • To develop a high-yield, miniaturized ozone generator.

Summary:

  • The study presents advanced dielectric barrier discharge techniques utilizing thinner dielectric layers (230 microns) of alpha Al2O3 and a narrow discharge gap (110 microns).

Related Experiment Videos

  • These innovations facilitate strong ionization, achieving reduced electric fields (E) over 400 Td and high electron average energies exceeding 10 eV.
  • This results in a high ozone concentration of 200 g/m3 and an ozone production efficiency of 100 g/(kW.h).

    • Impact:

    • Enables the realization of high-yield, miniaturized ozone generators through modular assembly.
    • Offers a significant advancement in plasma-based chemical processing for ozone production.
    • Potential applications in water purification, air sterilization, and chemical synthesis.