The desorption depth in the desorption tower of the catalytic unit is unreasonable (the flow rate of the desorbed gas is greater than that of the dry gas)
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The desorption depth in the catalytic unit’s desorption tower is not appropriate; the flow rate of the desorbed gas is greater than the flow rate of the dry gas. How should this be understood? We are currently in this situation
In the absence of excessive desorption, the desorbed gas should theoretically equal the amount of dry gas; however, it contains a certain amount of C3 and C4 components, with the exact quantity varying. This is necessary to ensure that the oil at the bottom of the desorption tower does not contain C2, and also so that the C3 and C4 components can enter the absorption tower for further absorption. The drawback is increased energy consumption and tower load. I understand that the traffic difference between the two should not be too large.
Looking at the C2 content at the top of the stabilizer, my understanding is that as long as the amount of C2 being removed is appropriate, the stabilizer can do without C2
I think as long as the deethanized gasoline contains no C2 compounds and the liquid level in the condensate tank is normal, that’s sufficient; this measurement might not be accurate, so it should be used only for reference
This analyzed gas volume must be greater than that of the dry gas! No problem
The non-condensable gas in the stripping tower is carried in by the condensate oil pump; ensuring that the stabilizer is free of C2 compounds is sufficient. The amount of stripping gas has no relation to the amount of dry gas sent out