Find number of theoretical plates required in rectifying

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Reference no: EM132871829

Section

A continuous distillation column is used to produce a 65% ABV rum as distillate product from an 8% ABV wash. Reflux is established through a dephlegmator/partial condenser. Energy is saved by using the wash as the cooling fluid in the partial condenser. The wash is supplied at 100 kmol/h at an initial temperature of 20 °C, and leaves the partial condenser at 80 °C. The pre-heated wash is then heated further up to its bubble point using steam, before being fed into the column. The bottom product contains 0.2 mol% ethanol (0.65% ABV).

Demonstrate that the reflux ratio is 1.72, and find the number of theoretical plates required in the rectifying section only. Explain your workings briefly; make any assumptions required with justification, and include references or hyperlinks to sources used (other than teaching material).

Accounts for 20% of the final grade, 5% each for the following parts: unit conversions, heat balance, material balance, finding the number of plates.

The diagrams to be used in your answer (attached)

Attachment:- exam diagrams.rar

Reference no: EM132871829

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