Abstract
In separation of benzene, toluene, and xylenes from reformate by extractive fractionation, the solvent, consisting of N–methylpyrrolidone and sulfolane (70:30) is more effective than each of the components separately. C⊂6–C⊂8 aromatic hydrocarbons are separated with a yield of 99.8 wt. % by extraction fractionation and subsequent extraction of benzene residues from distillate with sulfolane:N–methylpyrrolidone solvent (90:10 wt.) with a total mass ratio to the feedstock of 2.8:1. Key words: reforming catalyzate, aromatic hydrocarbons, extraction, extraction fractionation, N–methylpyrrolidone, sulfolane.
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Gaile, A.A., Zalishchevskii, G.D., Gafur, N.N. et al. Separation of Aromatic Hydrocarbons from Reformate. Combined Extraction Fractionation–Eextraction. Chemistry and Technology of Fuels and Oils 40, 131–136 (2004). https://doi.org/10.1023/B:CAFO.0000031891.84319.15
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DOI: https://doi.org/10.1023/B:CAFO.0000031891.84319.15