期刊
CHEMICAL ENGINEERING & TECHNOLOGY
卷 33, 期 9, 页码 1515-1524出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ceat.200900622
关键词
Desulfurization; Gas oil; Liquid/liquid extraction; Oxidation; Solvent extraction
资金
- R&D center of Esfahan Oil Refinery Co. (Esfahan, Iran)
The desulfurization of non-hydrotreated gas oil using oxidation followed by liquid/liquid extraction has been studied. The solvent extraction of oxidized sulfur-containing compounds of gas oil was carried out by utilizing various types of solvents, including acetonitrile, methanol, and 96 vol.-% ethanol. The performance of these solvents was carefully evaluated and compared by considering both desulfurization and gas oil recovery. It was found that their performance follows the order: acetonitrile > methanol > 96 vol.-% ethanol. The influences of operating conditions, such as number of extraction stages and solvent to gas oil ratio, on the desulfurization and recovery of gas oil, were investigated. Over 99% desulfurization of gas oil was achieved after liquid/liquid extraction of the oxidized sulfur-containing compounds.
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