What is the difference between cold separation and hot separation?
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What is the difference between cold separation and hot separation? What is the principle?
In my understanding, cold separation involves using a refrigerant such as propylene or ethylene as the heat transfer medium, while heat separation primarily uses circulating cooling water as the heat transfer medium.
Cold separation includes demethanization, deethanization, and the ethylene column; hot separation involves the propylene column, C3 hydrogenation, the butane removal column, and the low-pressure column