When a high liquid hold up is required in a reactor for gas liquid reaction, use ______________ column?
Correct answer: D. Bubble
- A. Packed
- B. Spray
- C. Tray
- D. Bubble
Explanation
A bubble column retains a large continuous liquid phase while gas bubbles pass through it, giving high liquid hold-up for gas-liquid reactions. Spray columns generally provide lower liquid hold-up.
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