The minimum number of theoretical plates is required for achieving a given separation in distillation column with_________________?
Correct answer: B. Total reflux
- A. No reflux
- B. Total reflux
- C. Zero reflux ratio
- D. Minimum reflux ratio
Explanation
At total reflux, all overhead liquid is returned and no product is withdrawn, giving the maximum separation per theoretical stage. Consequently, the minimum number of stages required for a specified separation occurs at total reflux.
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