______________ column is preferred to be used, when a high liquid hold up is required in a reactor for gas-liquid reaction ?
Correct answer: B. Bubble
- A. Packed
- B. Bubble
- C. Spray
- D. Tray
Explanation
A bubble column provides intense gas dispersion and a relatively large liquid inventory, giving high liquid holdup and long gas-liquid contact time. Packed and spray columns generally have lower liquid holdup.
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