Which of these columns incurs the lowest pressure drop ?
Correct answer: D. Packed column (with stacked packing)
- A. Pulse column
- B. Packed column (with dumped packing)
- C. Bubble plate column
- D. Packed column (with stacked packing)
Explanation
Stacked packing has a more regular structure and lower resistance to gas flow than dumped packing, while bubble-plate and pulse columns generally impose greater pressure losses. It therefore gives the lowest pressure drop here.
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