Propane removal column in the gas phase
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I seek advice from experts: On the propane removal column, the temperatures of the trays from layer 51 to layer 57 are all similar, around 102°C, with a difference of only a few tenths of a degree. The bottom temperature is 105°C, the top pressure is 1.81 Mpa, and the top temperature is 48.8°C. The temperature at layer 25 is around 55°C; when this temperature rises above 70°C, without any changes in other parameters, C4 will be carried from the bottom of the column to the top. What causes this, and how can it be controlled?
If other parameters remain unchanged, the reflux should be increased and the temperature of the 25-layer board should be lowered.
Excessive steam consumption or low reflux ratio; reduce steam usage
Send a picture; it’s not possible to make a judgment based only on this description. Is there a component analysis sheet?
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