湿式洗涤器中臭氧氧化氯苯的Fe-C强化传质性能提升研究

张鹏; 秦彩虹; 张肖格; 黄家玉; 屈璇; 薛孜晨; 焦巧巧

doi:10.13205/j.hjgc.202602015

湿式洗涤器中臭氧氧化氯苯的Fe-C强化传质性能提升研究

doi: 10.13205/j.hjgc.202602015

1. 西安建筑科技大学环境与市政工程学院, 西安 710055;
2. 中国环境科学研究院, 北京 100012

基金项目:

国家自然科学基金项目（52300137）；陕西省自然科学基础研究计划（2021JQ-508）

详细信息

作者简介:
张鹏（1998—），男，硕士研究生，主要研究方向为VOCs净化技术。1659684992@qq.com

通讯作者:
秦彩虹（1987—），女，副教授，主要研究方向为VOCs净化技术。qincaihong@xauat.edu.cn

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出版历程
- 收稿日期: 2025-03-19
- 网络出版日期: 2026-04-11
- 刊出日期: 2026-02-01

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

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

摘要

摘要: 在湿式洗涤器中，利用臭氧（O₃）氧化含氯挥发性有机物（CVOCs）时，O₃和CVOCs的气-液传质是限制CVOCs降解的关键因素。研究Fe-C强化O₃和典型CVOCs氯苯（CB）的气-液传质，探究了Fe-C投加量、入口浓度以及气体流量对O₃和CB传质的影响规律，并揭示了Fe-C强化O₃与CB同时传质的机理。结果表明，当湿式洗涤器中单独通入O₃或CB时，O₃和CB传质系数均随入口浓度的增加而增大，随Fe-C投加量、气体流速的增加先增大后减小，两者均在Fe-C投加量为2.0 g/L和气体流速为500 mL/min时的传质效果最佳。当Fe-C投加量为2.0 g/L时，其对O₃和CB的传质强化因子E分别为19.73和10.91。当湿式洗涤器中同时通入O₃和CB，Fe-C投加量为2.0 g/L时CB的传质效果进一步提升，CB的E值可达12.87。Fe-C通过穿梭效应强化O₃和CB的气液传质，通过激活O₃转化为·OH和·O₂^-，促进溶液中CB的降解。
- 湿式洗涤器 /
- 臭氧 /
- 氯苯 /
- 气-液传质 /
- Fe-C催化剂
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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