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Re-refining of waste mineral insulating oil by extraction with N-methyl-2-pyrrolidone
dc.creator | Lukić, Jelena | |
dc.creator | Orlović, Aleksandar | |
dc.creator | Spiteller, Michael | |
dc.creator | Jovanović, Jovan | |
dc.creator | Skala, Dejan | |
dc.date.accessioned | 2021-03-10T10:33:12Z | |
dc.date.available | 2021-03-10T10:33:12Z | |
dc.date.issued | 2006 | |
dc.identifier.issn | 1383-5866 | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/934 | |
dc.description.abstract | Extraction with N-methyl-2-pyrrolidone (NMP) via the three-stage mixer-settler operation was studied as possible process for re-refining of waste mineral insulating oil. The following extraction process parameters were investigated systematically in order to determine their optimum values: amount of water as co-solvent in NMP, extraction temperature and solvent/oil ratio. The process parameters and resulting oil chemical compositions were found to influence the electrical properties and the oxidation stability of the re-refined oil. The levels of aromatic, paraffinic and polycyclic aromatic hydrocarbons were determined using IR spectroscopy and HPLC, while other relevant chemical and electrical properties of waste and re-refined oil were determined according to IEC, ISO and ASTM standards. Extraction using NMP was found to be an adequate method for waste mineral insulating oil re-refining, according to the application properties of the re-refined oil. Moderate extraction temperature, 1% water in NMP and a low solvent/oil ratio (0.5) were determined to be the optimum process parameters. | en |
dc.publisher | Elsevier Science Bv, Amsterdam | |
dc.rights | restrictedAccess | |
dc.source | Separation and Purification Technology | |
dc.subject | re-refining | en |
dc.subject | mineral insulating oil | en |
dc.subject | extraction | en |
dc.subject | N-methyl-2-pyrrolidone | en |
dc.subject | oxidation stability | en |
dc.title | Re-refining of waste mineral insulating oil by extraction with N-methyl-2-pyrrolidone | en |
dc.type | article | |
dc.rights.license | ARR | |
dc.citation.epage | 156 | |
dc.citation.issue | 2 | |
dc.citation.other | 51(2): 150-156 | |
dc.citation.rank | aM21 | |
dc.citation.spage | 150 | |
dc.citation.volume | 51 | |
dc.identifier.doi | 10.1016/j.seppur.2005.12.029 | |
dc.identifier.scopus | 2-s2.0-33748304336 | |
dc.identifier.wos | 000240864200006 | |
dc.type.version | publishedVersion |