Multiple effect evaporation is generally recommended, when the______________________?
Correct answer: C. Large scale evaporation of liquor is needed
- A. Fuel is cheaply available
- B. Corrosive liquids are to be concentrated
- C. Large scale evaporation of liquor is needed
- D. Evaporation on small scale is to be done
Explanation
Multiple-effect evaporation reuses the vapor from one effect as the heating medium for the next, saving steam in large-capacity operation. It is therefore most economical when evaporation is required on a large scale.
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