(49b) Oxidation of High Molecular Weight Dye Using Ozone Isotopomers
AIChE Annual Meeting
2017 Annual Meeting
Advanced Oxidation Processes I
Monday, October 30, 2017 - 8:25am to 8:50am
Ozone has several isotopomers ranging in mass from 48O3 and 54O3. These isotopes can be formed in different proportions in the corona discharge process depending on the distribution of oxygen isotopes 16O: 17O: 18O, in the feed gas. The symmetric ozone molecules 48O3, 51O3, and 54O3 can have different reactivities than the asymmetric ozone molecules 49O3, 50O3, and 52O3. An anomalous distribution of ozone isotopomers has been found in the upper atmosphere and has been investigated to some extent. Laboratory corona discharge studies have shown that there is an anomalous enhancement of certain ozone isotopes in the product gas when natural oxygen is used as feed gas for ozone generation. The goal of this research is to evaluate the effects of an isotopically enriched oxygen feed gas on the enhancement of oxidation of a high molecular weight dye. Experiments were conducted in stirred tank reactors and tubular porous electrode ozonators with ozone generated using different proportions of 18O2 and/or 17O2 along with 16O2 to determine the impact of the ozone isotopomers on oxidation efficiency. Comparative results with ozone generated from natural oxygen isotopes will be provided.