Regeneration of Spent Lubricant Refining Clays by Solvent Extraction
Step-by-step solvent extraction was used to regenerate spent clay by recovering the adsorbed oil in lubricating oil refining clay. Several polar and nonpolar solvents were tested, and petroleum ether (90–120°C) and ethanol (95 v%) were selected as the nonpolar and polar solvents, respectively. The s...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | International Journal of Chemical Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/207095 |
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| author | Yan-zhen Wang Hai-long Xu Li Gao Meng-meng Yan Hong-ling Duan Chun-min Song |
| author_facet | Yan-zhen Wang Hai-long Xu Li Gao Meng-meng Yan Hong-ling Duan Chun-min Song |
| author_sort | Yan-zhen Wang |
| collection | DOAJ |
| description | Step-by-step solvent extraction was used to regenerate spent clay by recovering the adsorbed oil in lubricating oil refining clay. Several polar and nonpolar solvents were tested, and petroleum ether (90–120°C) and ethanol (95 v%) were selected as the nonpolar and polar solvents, respectively. The spent clay was first extracted using petroleum ether (90–120°C) to obtain ideal oil and then extracted with a mixed solvent of petroleum ether (90–120°C) and ethanol (95 v%) two or three times to obtain nonideal oil before being extracted with ethanol and water. Finally, the clay was dried at 130°C to obtain regenerated clay. The total oil recovery can be more than 99 wt% of the adsorbed oil. The recovered ideal oil can be used as lubricating base oil. Shorter storage times for spent clay produce better regeneration results. The regenerated clay can be reused to refine the lubricating base oils. |
| format | Article |
| id | doaj-art-4964c3cb79f64fd79e8d724006ce56ab |
| institution | Kabale University |
| issn | 1687-806X 1687-8078 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Chemical Engineering |
| spelling | doaj-art-4964c3cb79f64fd79e8d724006ce56ab2025-02-03T01:06:19ZengWileyInternational Journal of Chemical Engineering1687-806X1687-80782015-01-01201510.1155/2015/207095207095Regeneration of Spent Lubricant Refining Clays by Solvent ExtractionYan-zhen Wang0Hai-long Xu1Li Gao2Meng-meng Yan3Hong-ling Duan4Chun-min Song5State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, ChinaShengli College, China University of Petroleum, Dongying 257061, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, ChinaStep-by-step solvent extraction was used to regenerate spent clay by recovering the adsorbed oil in lubricating oil refining clay. Several polar and nonpolar solvents were tested, and petroleum ether (90–120°C) and ethanol (95 v%) were selected as the nonpolar and polar solvents, respectively. The spent clay was first extracted using petroleum ether (90–120°C) to obtain ideal oil and then extracted with a mixed solvent of petroleum ether (90–120°C) and ethanol (95 v%) two or three times to obtain nonideal oil before being extracted with ethanol and water. Finally, the clay was dried at 130°C to obtain regenerated clay. The total oil recovery can be more than 99 wt% of the adsorbed oil. The recovered ideal oil can be used as lubricating base oil. Shorter storage times for spent clay produce better regeneration results. The regenerated clay can be reused to refine the lubricating base oils.http://dx.doi.org/10.1155/2015/207095 |
| spellingShingle | Yan-zhen Wang Hai-long Xu Li Gao Meng-meng Yan Hong-ling Duan Chun-min Song Regeneration of Spent Lubricant Refining Clays by Solvent Extraction International Journal of Chemical Engineering |
| title | Regeneration of Spent Lubricant Refining Clays by Solvent Extraction |
| title_full | Regeneration of Spent Lubricant Refining Clays by Solvent Extraction |
| title_fullStr | Regeneration of Spent Lubricant Refining Clays by Solvent Extraction |
| title_full_unstemmed | Regeneration of Spent Lubricant Refining Clays by Solvent Extraction |
| title_short | Regeneration of Spent Lubricant Refining Clays by Solvent Extraction |
| title_sort | regeneration of spent lubricant refining clays by solvent extraction |
| url | http://dx.doi.org/10.1155/2015/207095 |
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