Is the number of theoretical plates the same for gas lift experiments on different systems?
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I am conducting experiments related to mass transfer, and I would like to ask everyone: for the same equipment, are the number of theoretical plates and the height of the mass transfer unit the same when using different material systems for air lift experiments?
It’s different, right? It can be calculated using Finske’s formula, but when the system changes, the result seems to change as well
The difference isn’t significant, right? For a column device, the number of theoretical plates should be fixed; it shouldn’t change just because the material system is altered.
It is a fact that for a column unit, the number of trays it has should be fixed. However, the theoretical number of theoretical plates is different from the actual number of theoretical plates. The theoretical number of plates is calculated. And the tower above is a real one, with a fixed number of trays. The number of theoretical plates is related to the physical property parameters of these two phases; when there is a change in the gas and liquid phases, the number of theoretical plates also changes. (This is calculated in textbooks on chemical engineering principles, and the detailed procedures are also available in process design calculation manuals; we can discuss it if needed.)
Thank you for the advice from above; I’ve learned a lot, thanks.
But I have a question: the number of theoretical plates is related to the physical properties of the two phases. When there are changes in the gas and liquid phases, does the number of theoretical plates change as well? If so, is the magnitude of that change significant? It shouldn’t be that big, right?