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.
TY - JOUR
AU - Lukić, Jelena
AU - Orlović, Aleksandar
AU - Spiteller, Michael
AU - Jovanović, Jovan
AU - Skala, Dejan
PY - 2006
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/934
AB - 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.
PB - Elsevier Science Bv, Amsterdam
T2 - Separation and Purification Technology
T1 - Re-refining of waste mineral insulating oil by extraction with N-methyl-2-pyrrolidone
EP - 156
IS - 2
SP - 150
VL - 51
DO - 10.1016/j.seppur.2005.12.029
ER -
@article{
author = "Lukić, Jelena and Orlović, Aleksandar and Spiteller, Michael and Jovanović, Jovan and Skala, Dejan",
year = "2006",
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.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Separation and Purification Technology",
title = "Re-refining of waste mineral insulating oil by extraction with N-methyl-2-pyrrolidone",
pages = "156-150",
number = "2",
volume = "51",
doi = "10.1016/j.seppur.2005.12.029"
}
Lukić, J., Orlović, A., Spiteller, M., Jovanović, J.,& Skala, D.. (2006). Re-refining of waste mineral insulating oil by extraction with N-methyl-2-pyrrolidone. in Separation and Purification Technology
Elsevier Science Bv, Amsterdam., 51(2), 150-156.
https://doi.org/10.1016/j.seppur.2005.12.029
Lukić J, Orlović A, Spiteller M, Jovanović J, Skala D. Re-refining of waste mineral insulating oil by extraction with N-methyl-2-pyrrolidone. in Separation and Purification Technology. 2006;51(2):150-156.
doi:10.1016/j.seppur.2005.12.029 .
Lukić, Jelena, Orlović, Aleksandar, Spiteller, Michael, Jovanović, Jovan, Skala, Dejan, "Re-refining of waste mineral insulating oil by extraction with N-methyl-2-pyrrolidone" in Separation and Purification Technology, 51, no. 2 (2006):150-156,
https://doi.org/10.1016/j.seppur.2005.12.029 . .
