Abstract
The extraction of benzene from a narrow cut of naphtha produced by the Iranian petrochemical company has been studied at the operating temperatures of 40, 45 and 50 °C, and four solvent-to-feed ratios (S/F) varied over the range of 1–4. Two extraction solvents, sulfolane as a pure-solvent and (sulfolane containing 7 wt% 2-propanol) as a mixed-solvent have been investigated for selective removal of benzene from the naphtha cut. The experimental results demonstrated that the mixed-solvent at 40 °C is a suitable solvent to replace sulfolane for an industrial extraction process for the separation of benzene from the naphtha cut because of its lower price and energy savings.
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Mahmoudi, J., Lotfollahi, M.N. Extraction of benzene from a narrow cut of naphtha via liquid-liquid extraction using pure-sulfolane and 2-propanol-sulfolane-mixed solvents. Korean J. Chem. Eng. 27, 214–217 (2010). https://doi.org/10.1007/s11814-009-0328-y
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DOI: https://doi.org/10.1007/s11814-009-0328-y