The most widely used crude topping column in refineries is the ______________ column?
Correct answer: A. Bubble-cap
- A. Bubble-cap
- B. Packed bed
- C. Fluidised bed
- D. Perforated plate
Explanation
Bubble-cap trays provide good vapour-liquid contact and tolerate changes in liquid and vapour rates, making them a traditional choice for crude topping columns. Packed and fluidised beds are not the usual tray-column arrangement for this service.
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