Smaller sized packings are generally dumped to the packed columns, and the large ones of size greater than ______________ mm are stacked individually, which provides better control over bed porosity and offers lower gas pressure drop?
Correct answer: C. 75
- A. 25
- B. 50
- C. 75
- D. 150
Explanation
Packings larger than about 75 mm are normally stacked by hand rather than dumped. Individual stacking improves void distribution and reduces gas-side pressure drop, while smaller packings can be dumped safely.
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