A high vapour velocity is required for high plate efficiency in a sieve plate column. The satisfactory value of operating vapor velocity for design purpose in sieve plate column is about _______________ percent of the flooding velocity?
Correct answer: C. 80
- A. 45
- B. 60
- C. 80
- D. 95
Explanation
Sieve trays are commonly designed to operate at roughly 70 to 80% of flooding velocity, providing good vapour-liquid contact without excessive entrainment. Hence 80% is the suitable choice.
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