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Regeneration of the waste lubricating oil based upon flyash adsorption / solvent extraction.

Authors
  • Ouyang, Ping1
  • Zhang, Xianming2
  • 1 Engineering Research Center for Waste Oil Recovery Technology and Equipment of Ministry of Education, Chongqing Technology and Business University, Chongqing, 400067, China. [email protected] , (China)
  • 2 Engineering Research Center for Waste Oil Recovery Technology and Equipment of Ministry of Education, Chongqing Technology and Business University, Chongqing, 400067, China. , (China)
Type
Published Article
Journal
Environmental Science and Pollution Research
Publisher
Springer-Verlag
Publication Date
Oct 01, 2020
Volume
27
Issue
30
Pages
37210–37217
Identifiers
DOI: 10.1007/s11356-019-07389-9
PMID: 31875927
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

In order to explore the high value-added utilization of flyash adsorption in regenerating waste lubricating oil, the main factors related to the flyash adsorption was investigated by the single-factor tests, and then the optimum process conditions for flyash adsorption was obtained by means of the orthogonal experiments, and in terms of several indexes, such as kinematic viscosity (40 °C), acid number, mechanical impurity and moisture, the combined process of flyash adsorption/solvent extraction was discussed and finally compared with previous studies. The experimental results prove that flyash has a good effect in adsorbing waste lubricating oil, and the solvent extraction-flyash adsorption process has a better effect in the regeneration of waste lubricating oil than the flyash adsorption-solvent extraction process.

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