Affiliation:
1. Ivanovo State University of Chemistry and Technology
Abstract
Abstract
In this work, the process of decomposition of 2,4-dichlorophenol (2,4-DCP) vapor under the influence of atmospheric pressure DBD in oxygen was studied. The studies were carried out in two modes: with a catalyst (natural vermiculite doped with zirconium) and without it. A number of basic characteristics of the catalyst were assessed. The rates and effective rate constants of sorption processes, as well as decomposition processes in plasma and plasma-catalytic systems, were determined. Based on these data, the energy efficiency of the decomposition process was calculated. The data obtained suggested that the initial stage of decomposition is the reaction of interaction of electrons with pollutant molecules. The catalyst has been shown to speed up the decomposition process, increase energy efficiency and the conversion of 2,4-DCP to CO2 molecules, and prevent the formation of condensed products on the reactor walls. The work estimates the carbon and chlorine balances before and after treatment, which reach a maximum of 99 and 60%, respectively. It was also shown that the catalyst retains its activity for at least 7 hours of continuous operation.
Publisher
Research Square Platform LLC
Reference34 articles.
1. Huang B, Lei C, Wei C, Zeng G (2014) Chlorinated volatile organic compounds (Cl-VOCs) in environment-sources, potential human health impacts, and current remediation technologies. Environ Int 71:118–138. https://doi.10.1016/j.envint.2014.06.013
2. A review on recent advances in catalytic combustion of chlorinated volatile organic compounds;Li C;J Chem Technol Biotechnol,2020
3. Hazardous volatile organic compounds in ambient air of China;Lyu X;Chemosphere,2020
4. Volatile organic compounds in the global atmosphere;Helmig D;Eos,2009
5. Source apportionments of atmospheric volatile organic compounds in Nanjing, China during high ozone pollution season;Fan M-Y;Chemosphere,2021