A distillation column operates at steady state with a 10.0 kg/s continuous feed

Question

A distillation column operates at steady state with a 10.0 kg/s continuous feed consisting of 55.0 wt% ethanol, 5.0 wt% of a dissolved solute, and 40.0 wt% water. The overhead and bottoms product streams emerge from the column with equal mass flow rates. The top stream contains 90.0 wt% ethanol and no solute.

A) Carefully and completely draw and label the flowchart for this process.

B) Show the degree of freedom analysis for the distillation column.

C) Calculate the mass fraction of solute in the bottoms product. Also calculate the fraction of ethanol in the feed that leaves in the bottoms product.

Explanation / Answer

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