For a packed bed reactor; the presence of a long tail in the residence time distribution curve is an indication of ?
Correct answer: C. Dead zone
- A. Ideal plug flow
- B. Bypass
- C. Dead zone
- D. Channelling
Explanation
A long tail means some material remains in the packed bed much longer than the main flow, which indicates stagnant or dead regions. Bypass causes an early exit and a short-time peak rather than a long tail.
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