Influence of water vapor on photochemical ozone generation with efficient 172 nm xenon excimer lamps

Manfred Salvermoser, Daniel E. Murnick, Ulrich Kogelschatz

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

The influence of water vapor on photochemical ozone generation has been investigated. Tests of a coaxial ozone generator driven by an efficient, tubular, 172 nm xenon excimer lamp revealed that ozone saturation concentration strongly depends on moisture concentration in the process gas. In order to adequately model the data, catalytic ozone destruction by OH and HO2 radicals formed by reactions with trace amounts of water vapor in the process gas had to be included in the photochemical ozone production rate equation system. Based on the model, optimized ozone photoreactor designs for ambient air, dry air and dry oxygen are described.

Original languageEnglish (US)
Pages (from-to)228-237
Number of pages10
JournalOzone: Science and Engineering
Volume30
Issue number3
DOIs
StatePublished - May 1 2008

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry

Keywords

  • Catalytic Decomposition
  • Excimer
  • Generator
  • Hydroxyl Radical
  • Ozone
  • Photochemical
  • VUV
  • Water Vapor
  • Yield

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