In case of a continuous distillation column, increase in reflux ratio may result in the______________?
Correct answer: A. All A., B. and C.
- A. All A., B. and C.
- B. Greater cost for the reboiler heat supply
- C. Greater cost for the condenser coolant
- D. Lower fixed charges for the column
Explanation
A higher reflux ratio reduces the number of theoretical stages, so the column may require lower fixed investment, but it increases both reboiler duty and condenser cooling duty. Thus, all three listed effects can occur.
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