Deashaltening and Hydrodesulphurization of Jumboor Vacuum Residue
Vacuum residue of Jumboor crude oil above 773 K of specific gravity 1.105 and 6. I wt% sulfur , was treated with commercial pentane &hexane fractions for preparing deasphaltened oil (DAO) suitable for hydrodesulphurization process. Solvent deasphaltening was examined with mixing time 0.25 to 4 h...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Tikrit University
2007-09-01
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| Series: | Tikrit Journal of Engineering Sciences |
| Online Access: | https://tj-es.com/ojs/index.php/tjes/article/view/694 |
| Summary: | Vacuum residue of Jumboor crude oil above 773 K of specific gravity 1.105 and 6. I wt% sulfur , was treated with commercial pentane &hexane fractions for preparing deasphaltened oil (DAO) suitable for hydrodesulphurization process. Solvent deasphaltening was examined with mixing time 0.25 to 4 h and solvent to oil ratio 4 to 15 ml : 1g at different temperatures . The asphaltenes yield was decreased with increasing mixing time and increased with increasing solvent to oil ratio . Hexane deasphaltened oil hydrotreated on presulfided commercial cobalt-molybdenum alumina catalyst at specified operating conditions in a trickle bed reactor . The hydrotreating process applied at a range of temperatures varied from 623 to 698 K, liquid hourly space velocity (LHSV) from 0.7 to 2.2 h-1 ,H2/oil ratio about 300 liter/liter and hydrogen pressure was 4 Mpa . The results of hydrotreating process indicate high sulfur and metal removal with decreasing LHSV as well as high temperature applied . The kinetic of hydrodesulphurization and demetalization reactions followed 2nd and 1st order reactions respectively .
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| ISSN: | 1813-162X 2312-7589 |