Ultraviolet and Radical Oxidation of Airborne VOC's

Abstract

Airborne VOC's reactions initiated by UV radiation at selected wavelengths from 185 to 308 nm have been studied. A simplified chemical kinetic mechanism is proposed incorporating photolysis and radical reactions. The concentration of HCHO and CH3OH were predicted as a function of time, radiation wavelength, actinic flux and initial ozone concentration. The gas velocity and HCHO concentration were predicted in a gas stream flowing over a UV bulb. Experiments were conducted in which ethanol vapor and air were irradiated by low-pressure mercury bulbs. Ethanol disappeared in an overall first-order manner and an intermediate species, believed to be acetaldehyde, appeared and then disappeared.

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Document Details

Document Type
Technical Report
Publication Date
Mar 18, 1994
Accession Number
ADA351175

Entities

People

  • John P. Schmelzle
  • Maria T. Albano
  • Robert J. Heinsohn
  • Robert O. Fetter
  • Timothy A. Spaeder

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acetaldehyde
  • Air Pollution
  • Alcohols
  • Atmospheric Chemistry
  • Boundary Layer
  • Chemical Kinetics
  • Chemical Reactions
  • Chemical Synthesis
  • Chemistry
  • Dissociation
  • Fluid Mechanics
  • Organic Chemistry
  • Organic Compounds
  • Oxidation
  • Photochemical Reactions
  • Photolysis
  • Radiation

Fields of Study

  • Environmental science

Readers

  • Combustion and Flow Dynamics.
  • Organic Chemistry