Process Equipment and Plant Design
In case of a continuous distillation column, increase in reflux ratio may result in the

All of these
Greater cost for the condenser coolant
Greater cost for the reboiler heat supply
Lower fixed charges for the column

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Process Equipment and Plant Design
Vertical condenser is advantageous to the horizontal condenser from operation point of view, when

Sub cooling of condensate is desired
Both the functions of condensation & sub cooling are carried out in a single unit
Only the function of condensation is to be carried out
Hydrostatic head is required for refluxing the condensate

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