Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 113, Issue -, Pages 247-253Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2022.05.052
Keywords
Toluene; Wet scrubber; Nonthermal plasma; Ozone; Fe2+
Funding
- National Key R&D Program of China [2017YFC0212204]
- Natural Science Basic Research Plan in Shanxi Province of China [2021JQ-508]
- Post-doctoral Research Foundation of Shanxi Province [2018BSHEDZZ19]
- Postdoctoral Research Foundation of China [2017M613289XB]
Ask authors/readers for more resources
A non-thermal plasma with a wet scrubber (NTP + WS) was used to degrade gaseous toluene. The addition of Fe2+ can improve the removal efficiencies of toluene and by-product ozone. The solubility of toluene and Fe2+ concentration play important roles in the degradation efficiency.
A non-thermal plasma with a wet scrubber (NTP + WS) was used to degrade gaseous toluene. Compared with the NTP + WS/H2O system, the toluene and by-product ozone removal efficiencies were increased by 10% and 85% in the NTP + WS/Fe2+ system, respectively. For 60 ppm toluene degradation, the maximum mineralization rate (MR) of toluene (61%) was obtained, at the optimum Fe2+ concentration of 50 mg/L. During catalytic oxidation, the removal efficiency of toluene was limited by its solubility in WS systems. In addition, decreased Fe2+ concentration and accumulation of organics led to the system deactivation. The EPR and quenching experiments verified the presence and contribution of hydroxyl radicals (4.6%) and superoxide radicals (3.8%) to the removal efficiency of toluene. Based on the radicals and intermediates detected in the gas and liquid phases, a degradation mechanism for toluene in the NTP + WS/Fe2+ system was proposed. (c) 2022 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available