If Rm is the minimum reflux ratio, the optimum reflux ratio may be around _________________ Rm ?
Correct answer: A. 1.2 to 1.5
- A. 1.2 to 1.5
- B. 2.5 to 3
- C. 3 to 4
- D. 5
Explanation
Operating at the minimum reflux ratio requires an impractically large number of stages, while very high reflux gives excessive energy use. An economic optimum is commonly around 1.2 to 1.5 times the minimum reflux ratio.
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