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(A) Selectivity and distribution ratio calculated for single equilibrium stage and minimum selectivity calculated to recover 99% of aromatics in overall process at aromatic purity of 99 wt %. (B) S/F ratios and utility costs calculated to recover 99% of 99% pure aromatic product in complete separation process using countercurrent extraction column (N = 20) for separating multicomponent refinery stream. Reproduced from ref (38). Copyright 2023 Elsevier.
