Abstract
Extractive rectification of the benzene fraction of reformer naphtha was studied, and the relative fugacity coefficients of the heptane-benzene system in the presence of N-methylpyrrolidone-N-formylmorpholine mixtures of various compositions were determined. A synergistic effect was revealed for a mixed selective solvent containing 29–30 wt % iV-formylmorpholine, 68–69% N-methylpyrrolidone, and 2–3 wt % water.
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