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Hydroxyl and aromatics: fate of the adducts in the presence on NOx and O2. A contribution to subproject LACTOZ

: Zetzsch, C.; Elend, M.; Knispel, R.; Koch, R.; Siese, M.

Borrell, P.; Borrell, P.M. ; EUREKA, Project EUROTRAC, International Scientific Secretariat -ISS-, Garmisch-Partenkirchen:
Photo-oxidants: precursors and products. Proceedings of EUROTRAC Symposium '92
Den Haag: SPB Academic Publishing, 1993
ISBN: 90-5103-082-7
EUROTRAC Symposium <2, 1992, Garmisch-Partenkirchen>
Fraunhofer ITA ( ITEM) ()
air pollution; aromatic compound; atmospheric chemistry; hydrocarbon; kinetics; oxidation; photochemistry; physical chemistry; pollutant; theoretical chemistry

Consecutive reactions (with O2) of adducts from the reversible addition of hydroxyl to aromatics are investigated by two different techniques, pulsed VUV photolysis/resonance fluorescence and smog chamber. For the system OH/phenol/O2, the temperature and pressure dependence is studied in detail. For this purpose the kinetic analysis is further developed and aplied to more recent measurements on p-xylene. The competition of the unimolecular decay of the adduct with the consecutive reaction is observed for benzene, toluene and p-xylene in smog chamber experiments in N2 at atmospheric pressure with O2 between 20 ppm and 21 %.