Acta Scientiarum Naturalium Universitatis Pekinensis ›› 2019, Vol. 55 ›› Issue (6): 1152-1160.DOI: 10.13209/j.0479-8023.2019.089

Previous Articles     Next Articles

Study on Deoiling Effect and Kinetics of Ozone Catalyzed Oxidation of Oil-bearing Clay

CHEN Hongshuo, LIU Yangsheng   

  1. College of Environmental Sciences and Engineering, Peking University, Beijing 100871
  • Received:2018-12-25 Revised:2019-06-18 Online:2019-11-20 Published:2019-11-20
  • Contact: LIU Yangsheng, E-mail: ysliu(at)


陈红硕, 刘阳生   

  1. 北京大学环境科学与工程学院, 北京 100871
  • 通讯作者: 刘阳生, E-mail: ysliu(at)
  • 基金资助:


An ozone catalytic oxidation treatment technology with natural aluminum ore as a catalyst was developed to treat the byproduct of oil-bearing clay with oil content of 6.5% produced during the thermochemical treatment of petroleum sludge at tank bottom. Under the optimized treatment conditions, the oil content of oilbearing clay could be reduced to 1.2%, meeting the treatment requirements specified in the “SY/T7301-2016”. For further research on the contribution of the catalyst to the ozone catalytic oxidation system, the reaction activation energy and reaction rates of ozone oxidation and ozone catalytic oxidation were compared from the perspective of kinetics. The results showed that, with the catalyst sludge adding, the oil removal rate increased 2–3 times and the reaction activation energy reduced 84.2%, which showed the effectiveness of the catalyst on the kinetics of quantitatively. As a kind of deep treatment method of the oily clay, this technology further complements and improves the recycling and harmless treatment system of petroleum sludge at tank bottom.

Key words: oil-bearing clay, ozone catalytic oxidation, natural aluminum ore, kinetics


针对热化学处理罐底油泥过程中产生的高难处理含油黏土(含油率为6.5%), 开发一种以天然铝矿石为催化剂的臭氧催化氧化处理技术。在优化处理条件下, 黏土的含油率可降低到1.2%, 满足SY/T7301—2016标准规定的处理要求。为进一步研究催化剂对臭氧催化氧化体系的贡献度, 从动力学角度出发, 分别对臭氧氧化与臭氧催化氧化两个过程中的反应活化能和反应速率常数进行比较, 结果表明, 添加催化剂后油泥的去除速率提高2~3倍, 反应活化能降低近84.2%, 从而在动力学上定量地说明该催化剂的有效性。该技术作为罐底油泥含油黏土副产物的一种深度处理技术, 进一步完善了罐底油泥的资源化、无害化处理体系。

关键词: 含油黏土, 臭氧催化氧化, 天然铝矿石, 动力学