Propylene side backpressure interlock in high-pressure depropanization tower
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I would like to ask the experts here: who can accurately explain what the purpose of setting up the low-low interlock for the back pressure on the propylene refrigerant side of the high-pressure depropanization tower is?
The low backpressure interlock is primarily designed to prevent damage to the pipes caused by low temperatures resulting from low pressure
Protect the equipment; low pressure on the refrigerant side corresponds to a low temperature as well
Could you describe clearly the propylene refrigerant – what is the temperature?
It is lowered, corresponding to a low temperature of the propylene refrigerant; the interlock serves primarily as a protection mechanism, mainly to protect pipeline equipment from low temperatures. Just look at the pipeline material and you’ll understand.