A minimum clearance of about _______________ mm is maintained between the distillation column wall and the bubble cap?
Correct answer: B. 38
- A. 19
- B. 38
- C. 67
- D. 95
Explanation
A clearance of about 38 mm between the column wall and the nearest bubble cap is normally maintained to allow proper liquid and vapour passage and to avoid wall interference. The larger clearances are unnecessarily wide for standard tray construction.
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