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[ 2 5 ] A distillation column is used to separate a methanol ( M e O H ) - water ( H 2 O
A distillation column is used to separate a methanol water mixture into a pre
dominantly methanol stream and a waste stream bf mostly water. The column feed is of a
liquid with methanol and the rest water. The product streams leave at the top and bottom of the
distillation column. The composition of the top product distillate is mass fraction methanol and
the rest water. The bottoms product flow rate is with unknown composition.
a Draw the flowchart with labeling, including units, on a chosen basis.
b Show that all mass flow rates andor mass fractions can be calculated by a DOF analysis.
c Write down the applicable material balance equations.
d What percent of methanol in feed is lost in the bottoms product?
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