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Chemical Engineering - Mass Transfer - Discussion

Discussion Forum : Mass Transfer - Section 12 (Q.No. 10)
Mass Transfer
10.
Pick out the wrong statement.
Packed towers are preferred for vacuum operation, because the pressure drop through the packing is less and they (packings) also lessen the possibility of tower wall collapse.
Packed towers are preferred over plate towers for handling corrosive and foamy liquids.
Diameter of randomly packed tower is normally more than 1.2 metres.
Due to uneven supply and improper distribution of liquid, problem of channeling, loading & flooding is generally encountered in packed towers.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.
Himanshu Lohiya said:   5 years ago
The Diameter is below 0.6 mtr.
KRR said:   3 years ago
The ratio of tower diameter to random packing size is greater than 10.

-> The tower diameter should be maintained at 1.2 m at the top for vapour disengagement.

-> The tower diameter should be maintained at 2 m at the bottom for liquid level and reboiler return.
The preliminary column diameter would then be the larger of the two calculated diameters.
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