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ABSTRACT
In this paper, flocculation and adsorption have been used as an efficient combination for the regeneration of used rolling oil. Polyethyleneimine (PEI) incorporated with polyacrylamide (PAM) as flocculant for treating used rolling oil was examined. The effect of dosages of PEI and PAM was investigated experimentally. The research of a percolation refined adsorption process using different adsorbent materials (silica gel, alumina, and activated carbon) was evaluated. The physical properties and hydrocarbon composition of regenerate oil become similar to the base rolling oil. In addition, the flocculation and adsorption mechanism was also explored.
Funding
This work was supported from the Shanghai Leading Academic Discipline Project (Project Number J51503), the National Natural Science Foundation of China (Project Number 20976105), the National Natural Science Foundation of China (Project Number 51641208 and 21606151), Shanghai Association for Science and Technology Achievements Transformation Alliance Program (Project Number LM201559), Science and Technology Commission of Shanghai Municipality Project (Project Number 14520503200), Excellent academic leaders of Shanghai (Project number 17XD1424900), and Leading talent of Shanghai (Project number 017).