Performance of Fe-C catalyst in improving mass transfer efficiency in a wet scrubber for ozone-oxidizing chlorobenzene

ZHANG Peng; QIN Caihong; ZHANG Xiaoge; HUANG Jiayu; QU Xuan; XUE Zichen; JIAO Qiaoqiao

doi:10.13205/j.hjgc.202602015

Volume 44 Issue 2

Feb. 2026

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ZHANG Peng, QIN Caihong, ZHANG Xiaoge, HUANG Jiayu, QU Xuan, XUE Zichen, JIAO Qiaoqiao. Performance of Fe-C catalyst in improving mass transfer efficiency in a wet scrubber for ozone-oxidizing chlorobenzene[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(2): 130-140. doi: 10.13205/j.hjgc.202602015

Citation:

ZHANG Peng, QIN Caihong, ZHANG Xiaoge, HUANG Jiayu, QU Xuan, XUE Zichen, JIAO Qiaoqiao. Performance of Fe-C catalyst in improving mass transfer efficiency in a wet scrubber for ozone-oxidizing chlorobenzene[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(2): 130-140. doi: 10.13205/j.hjgc.202602015

Citation:

ZHANG Peng, QIN Caihong, ZHANG Xiaoge, HUANG Jiayu, QU Xuan, XUE Zichen, JIAO Qiaoqiao. Performance of Fe-C catalyst in improving mass transfer efficiency in a wet scrubber for ozone-oxidizing chlorobenzene[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(2): 130-140. doi: 10.13205/j.hjgc.202602015

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Performance of Fe-C catalyst in improving mass transfer efficiency in a wet scrubber for ozone-oxidizing chlorobenzene

doi: 10.13205/j.hjgc.202602015

1. School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;
2. Chinese Academy of Environmental Sciences, Beijing 100012, China

Received Date: 2025-03-19
Available Online: 2026-04-11
Publish Date: 2026-02-01

Abstract

Abstract

The degradation of chlorinated volatile organic compounds （CVOCs） in a wet scrubber using ozone （O₃） is primarily limited by the gas-liquid mass transfer efficiencies of O₃ and CVOCs. In this research， a catalyst prepared by loading ferrous oxide onto activated carbon， named Fe-C， was used to boost the gas-liquid mass transfer of O₃ and a typical CVOCs specie， chlorobenzene （CB）. The effects of Fe-C dosage， inlet concentration， and gas flow rate on the mass transfer of O₃ and CB were investigated， and the mechanism of the simultaneous mass transfer of O₃ and CB enhanced by Fe-C was revealed. The results showed that injecting O₃ or CB into the wet scrubber alone caused the mass transfer coefficients to increase with the inlet concentration， and these coefficients initially rose and then decreased as the Fe-C dosage and gas flow rate increased. For both O₃ and CB， the best mass transfer effect was achieved with an Fe-C dosage of 2.0 g/L and a gas flow rate of 500 mL/min. The mass transfer enhancement factors of O₃ and CB were 19.73 and 10.91， respectively， at the Fe-C dosage of 2.0 g/L. When O₃ and CB were simultaneously fed into the wet scrubber， the mass transfer of CB was further enhanced， and the CB mass transfer enhancement factor E could reach 12.87 at the Fe-C dosage of 2.0 g/L. The shuttle effect of Fe-C enhanced the mass transfer of CB and O₃ between gas and liquid phases. Through converting O₃ into ·OH and ·O₂^-， the Fe-C catalyst promoted the degradation of CB in the solution.
- wetscrubber,
- ozone,
- chlorobenzene,
- gas-liquid mass transfer,
- Fe-C catalyst

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References(37)

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