Total reflux in a distillation operation requires minimum____________________?
Correct answer: B. Number of plates
- A. Reboiler load
- B. Number of plates
- C. Condenser load
- D. All A., B. and C.
Explanation
At total reflux, all condensed overhead liquid is returned to the column and no products are withdrawn, producing the maximum reflux ratio and the minimum number of theoretical plates for a specified separation. Reboiler and condenser still require heat duty, so their loads are not the defining minimum.
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