Kinetics and chemiluminescence of ozone-aromatic reactions in the gas phase

Variable products in dielectric-barrier discharge assisted benzene oxidation

“…Gas-phase reactions of O 3 and C 6 H 6 are discussed elsewhere in the literature [34,35]. The C 6 H 5 • radical reaction propensities would have minor, intermediate, and major contributions in the above scheme.…”

Effect of key parameters on the photocatalytic oxidation of toluene at low concentrations in air under 254+185nm UV irradiation

“…In almost all cases, direct ozonation does not take place during the short residence times typical of UVPCO operation (from hundredths of a second to a few seconds). In particular, that is the case for toluene, the model VOC used in this work, with a low bimolecular reaction rate of k tol O 3 = 9.9 x 10 -12 ppbv -1 s -1 [28].…”

“…Previous reports on the photocatalysis of VOCs under ozone-generating radiation used target pollutant concentrations 1 to 3 orders of magnitude higher than those that could be typically encountered in a building air cleaning system [17,[20][21][22][23][24][25][26][27][28][29][30], and experimental conditions leading to unrealistically high O 3 concentrations (e.g., 3-15 ppm) [19]. Here, we investigated the reaction of toluene in the low ppb range, in conditions that generate ≤ 300 ppb ozone, analyzing the effect of the residence time and the reactor length on the toluene removal and formaldehyde formation.…”

Plasma Catalytic Oxidation of Stored Benzene in a Cycled Storage-Discharge (CSD) Process: Catalysts, Reactors and Operation Conditions

“…For reactor C, in which the catalyst placed in the discharge zone, the stored benzene could be oxidized not only by the long-lived species, but mainly by some short-lived species (such as O atoms). The rate constant for the reaction of benzene with O atoms at 298 K [23] is 8 orders of magnitude higher than that with O 3 [24,25]. …”