The operating velocity in the absorption tower is usually 40-50% of the flooding velocity. Packed absorption towers are normally designed for a pressure drop of about _________________ mm of water column per metre height of packing?
Correct answer: B. 20-40
- A. 1-5
- B. 20-40
- C. 100-150
- D. 1000-1500
Explanation
Packed absorption towers commonly operate at about 40–50% of flooding velocity and are designed for roughly 20–40 mm water column pressure drop per metre of packing. The smaller range is generally too low for practical packing operation.
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