Evaluation of various techniques for separation of non-polar modifier concentrates from petroleum waxy by-products
Two petroleum waxy by-products (light and middle slack wax crudes) were evaluated for separation of non-polar modifiers by using different techniques. The results showed that, the light slack wax is selected as a suitable wax for separation of n-alkanes with even number of carbon atoms ranging from...
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| Format: | Article |
| Language: | English |
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Egyptian Petroleum Research Institute
2014-09-01
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| Series: | Egyptian Journal of Petroleum |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1110062114000567 |
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| author | Fathi S. Soliman Magdy T. Zaky Amal S. Farag Nermen H. Mohamed Lamia S. Mohamed S. Hanafi |
| author_facet | Fathi S. Soliman Magdy T. Zaky Amal S. Farag Nermen H. Mohamed Lamia S. Mohamed S. Hanafi |
| author_sort | Fathi S. Soliman |
| collection | DOAJ |
| description | Two petroleum waxy by-products (light and middle slack wax crudes) were evaluated for separation of non-polar modifiers by using different techniques. The results showed that, the light slack wax is selected as a suitable wax for separation of n-alkanes with even number of carbon atoms ranging from C20 to C26 for their high n-paraffin contents and can be used as non-polar structural modifiers. Different separation techniques; multistage fractional crystallization and liquid–solid chromatography; followed by the urea adduction technique have been used to separate non-polar modifier concentrates from the light slack wax crude. The light slack wax, its saturate components, the hard wax fractions isolated from light slack wax by the multistage fractional crystallization technique and their adducts were analyzed by GC to characterize and compare the produced components. The resulting data reveal that, the adducts of light slack wax and its saturate components; can be used as non-polar modifier concentrates of low carbon atoms (C20 + C22). From an economic point of view, the light slack wax adduct is selected as a non-polar modifier concentrate whereas, the separation step can be neglected to save energy. Meanwhile, the adduct of the hard wax isolated at 30 °C can be used as the preferable non-polar modifier concentrate of the high carbon number atoms (C24 + C26). |
| format | Article |
| id | doaj-art-6a76b3bb214a49bdb6a750124a970f9b |
| institution | Kabale University |
| issn | 1110-0621 |
| language | English |
| publishDate | 2014-09-01 |
| publisher | Egyptian Petroleum Research Institute |
| record_format | Article |
| series | Egyptian Journal of Petroleum |
| spelling | doaj-art-6a76b3bb214a49bdb6a750124a970f9b2025-08-20T03:33:42ZengEgyptian Petroleum Research InstituteEgyptian Journal of Petroleum1110-06212014-09-0123331532110.1016/j.ejpe.2014.08.007Evaluation of various techniques for separation of non-polar modifier concentrates from petroleum waxy by-productsFathi S. Soliman0Magdy T. Zaky1Amal S. Farag2Nermen H. Mohamed3Lamia S. Mohamed4S. Hanafi5Egyptian Petroleum Research Institute, Nasr City, 11727 Cairo, EgyptEgyptian Petroleum Research Institute, Nasr City, 11727 Cairo, EgyptEgyptian Petroleum Research Institute, Nasr City, 11727 Cairo, EgyptEgyptian Petroleum Research Institute, Nasr City, 11727 Cairo, EgyptEgyptian Petroleum Research Institute, Nasr City, 11727 Cairo, EgyptPhysical Chemistry Department, Faculty of Science, Ain Shams University, EgyptTwo petroleum waxy by-products (light and middle slack wax crudes) were evaluated for separation of non-polar modifiers by using different techniques. The results showed that, the light slack wax is selected as a suitable wax for separation of n-alkanes with even number of carbon atoms ranging from C20 to C26 for their high n-paraffin contents and can be used as non-polar structural modifiers. Different separation techniques; multistage fractional crystallization and liquid–solid chromatography; followed by the urea adduction technique have been used to separate non-polar modifier concentrates from the light slack wax crude. The light slack wax, its saturate components, the hard wax fractions isolated from light slack wax by the multistage fractional crystallization technique and their adducts were analyzed by GC to characterize and compare the produced components. The resulting data reveal that, the adducts of light slack wax and its saturate components; can be used as non-polar modifier concentrates of low carbon atoms (C20 + C22). From an economic point of view, the light slack wax adduct is selected as a non-polar modifier concentrate whereas, the separation step can be neglected to save energy. Meanwhile, the adduct of the hard wax isolated at 30 °C can be used as the preferable non-polar modifier concentrate of the high carbon number atoms (C24 + C26).http://www.sciencedirect.com/science/article/pii/S1110062114000567Slack waxMultistage fractional crystallizationLiquid–solid chromatographyUrea adduction techniqueNon-polar modifiers |
| spellingShingle | Fathi S. Soliman Magdy T. Zaky Amal S. Farag Nermen H. Mohamed Lamia S. Mohamed S. Hanafi Evaluation of various techniques for separation of non-polar modifier concentrates from petroleum waxy by-products Egyptian Journal of Petroleum Slack wax Multistage fractional crystallization Liquid–solid chromatography Urea adduction technique Non-polar modifiers |
| title | Evaluation of various techniques for separation of non-polar modifier concentrates from petroleum waxy by-products |
| title_full | Evaluation of various techniques for separation of non-polar modifier concentrates from petroleum waxy by-products |
| title_fullStr | Evaluation of various techniques for separation of non-polar modifier concentrates from petroleum waxy by-products |
| title_full_unstemmed | Evaluation of various techniques for separation of non-polar modifier concentrates from petroleum waxy by-products |
| title_short | Evaluation of various techniques for separation of non-polar modifier concentrates from petroleum waxy by-products |
| title_sort | evaluation of various techniques for separation of non polar modifier concentrates from petroleum waxy by products |
| topic | Slack wax Multistage fractional crystallization Liquid–solid chromatography Urea adduction technique Non-polar modifiers |
| url | http://www.sciencedirect.com/science/article/pii/S1110062114000567 |
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