SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2023, Vol. 53 ›› Issue (1): 317-323.DOI: 10.1016/j.cjche.2022.01.021

• Full Length Article • 上一篇    下一篇

Kinetics of the direct reaction between ozone and phenol by high-gravity intensified heterogeneous catalytic ozonation

Kechang Gao, Shengjuan Shao, Zhixing Li, Jiaxin Jing, Weizhou Jiao, Youzhi Liu   

  1. Shanxi Province Key Laboratory of Higee-Oriented Chemical Engineering, North University of China, Taiyuan 030051, China
  • 收稿日期:2021-09-06 修回日期:2022-01-22 出版日期:2023-01-28 发布日期:2023-04-08
  • 通讯作者: Weizhou Jiao,E-mail:zbdxjwz@nuc.edu.cn
  • 基金资助:
    This work was supported by the Fund for Shanxi Province Higher Education “1331 Project” for Improving Quality and Efficiency Construction (nuc2021-006), Key Research & Development Plan of Shanxi Province (201903D321059), Scientific Activities of Selected Returned Overseas Professionals in Shanxi Province (20200004), Transformation and Cultivation Projects of Scientific and Technological Achievements in Universities of Shanxi Province Institutions (2020CG040).

Kinetics of the direct reaction between ozone and phenol by high-gravity intensified heterogeneous catalytic ozonation

Kechang Gao, Shengjuan Shao, Zhixing Li, Jiaxin Jing, Weizhou Jiao, Youzhi Liu   

  1. Shanxi Province Key Laboratory of Higee-Oriented Chemical Engineering, North University of China, Taiyuan 030051, China
  • Received:2021-09-06 Revised:2022-01-22 Online:2023-01-28 Published:2023-04-08
  • Contact: Weizhou Jiao,E-mail:zbdxjwz@nuc.edu.cn
  • Supported by:
    This work was supported by the Fund for Shanxi Province Higher Education “1331 Project” for Improving Quality and Efficiency Construction (nuc2021-006), Key Research & Development Plan of Shanxi Province (201903D321059), Scientific Activities of Selected Returned Overseas Professionals in Shanxi Province (20200004), Transformation and Cultivation Projects of Scientific and Technological Achievements in Universities of Shanxi Province Institutions (2020CG040).

摘要: In this study, high-gravity intensified heterogeneous catalytic ozonation is utilized for treatment of phenol-containing wastewater, and the kinetics of the direct reaction between ozone and phenol in the presence of excess tertiary butanol (TBA) is investigated. It is revealed that the direct reaction between ozone and phenol in the rotating packed bed (RPB) follows the pseudo-first-order kinetics with a reaction rate constant higher than that in the conventional bubbling reactor (BR). Under different conditions of temperature, initial pH, high-gravity factor, and gaseous ozone concentration, the apparent reaction rate constant varies in the range of 0.0160–0.115 min-1. An empirical power-exponential model is established to characterize the effects of these parameters on the direct reaction between ozone and phenol by high-gravity intensified heterogeneous catalytic ozonation.

关键词: High-gravity technique, Heterogeneous catalysis, Ozone, Phenol, Kinetics of the direct reaction

Abstract: In this study, high-gravity intensified heterogeneous catalytic ozonation is utilized for treatment of phenol-containing wastewater, and the kinetics of the direct reaction between ozone and phenol in the presence of excess tertiary butanol (TBA) is investigated. It is revealed that the direct reaction between ozone and phenol in the rotating packed bed (RPB) follows the pseudo-first-order kinetics with a reaction rate constant higher than that in the conventional bubbling reactor (BR). Under different conditions of temperature, initial pH, high-gravity factor, and gaseous ozone concentration, the apparent reaction rate constant varies in the range of 0.0160–0.115 min-1. An empirical power-exponential model is established to characterize the effects of these parameters on the direct reaction between ozone and phenol by high-gravity intensified heterogeneous catalytic ozonation.

Key words: High-gravity technique, Heterogeneous catalysis, Ozone, Phenol, Kinetics of the direct reaction