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Biomass Chemical Engineering ›› 2021, Vol. 55 ›› Issue (4): 59-65.doi: 10.3969/j.issn.1673-5854.2021.04.008

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Research Progress in Absorption Regeneration of Waste Lubricant

Ruting XU, Ao WANG, Kang SUN()   

  1. Institute of Chemical Industry of Forest Products, CAF; National Engineering Lab. for Biomass Chemical Utilization; Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration; Key Lab. of Biomass Energy and Material, Jiangsu Province; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing 210042, China
  • Received:2020-06-09 Online:2021-07-30 Published:2021-07-10
  • Contact: Kang SUN E-mail:sunkang0226@163.com


With the rapid development of automobiles and manufacturing, the demand for lubricant has also greatly increased, and a large amount of waste lubricant has also been produced. Based on the current pollution status of waste lubricant, this article introduced its deterioration process, pollutant composition, and commonly regeneration processes (flocculation, distillation, extraction, hydrotreating, adsorption, etc.). The article introduced the adsorbents, such as clay, activated carbon, fly ash, natural polymer adsorbents and so on and new technologies (electrostatic adsorption) in detail. The overseas and domestic research status of adsorption regeneration were summarized and the merits and demerits of the adsorbents and adsorption technologies were summarized. Therefore, the problems and development trends of waste lubricant absorption regeneration in the future were proposed.

Key words: waste lubricant, adsorption regeneration, clay, activated carbon, fly ash

CLC Number: