An equimolar mixture of n-heptane and toluene at 200F, 20 psia, and a flow rate of 400
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An equimolar mixture of n-heptane and toluene at 200°F, 20 psia, and a flow rate of 400 lbmol/h is to be separated by extractive distillation at 20 psia, using phenol at 220°F as the solvent, at a flow rate of 1200 lbmol/h. Design a suitable two-column system, obtaining reasonable product purities, with only a small loss of solvent.
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Using the vapor pressure data in Chemcad the boiling points at 20 psia are found to be 2291 o F for nheptane 2514oF for toluene and 3790oF for phenol Thus nheptane appears to be the most volatile comp...View the full answer
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Rayan Gilbert
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