Regarding high scores in hot conditions, high scores in cold conditions,

Hot high fraction and hot low fraction are for gas-liquid two-phase separation tanks, while cold high fraction and cold low fraction are for gas-liquid-liquid three-phase separation tanks.

I know that. I want to know how it’s separated and what the principle is. It would be best if it had animations; I know what you mean – I’m just wondering how it’s separated.

Depending on their differences in density, the principle involved is gravitational sedimentation: water has a higher density than oil, and since they are immiscible, water settles at the bottom due to gravity.

The basic principle of the separator is three-phase separation of gas, oil, and water based on density differences. The hydrocracking unit is equipped with hot high-pressure, hot low-pressure, cold high-pressure, and cold low-pressure processes. 1) Hot high-pressure: Hot high-pressure separator. Upright. Gas-liquid two-phase separation. Its vapor enters the cold high-pressure separator after being air-cooled ； Its liquid phase enters the thermal fractionator ； 2) Thermal low pressure: Thermal low-pressure separator. Upright. Gas-liquid two-phase separation. Its vapor enters the cold light fractionator after being air-cooled ； Its liquid phase enters the hydrogen sulfide removal stripping tower and then proceeds to distillation. 3) Cold high-pressure separator: Cold high-pressure separator. Upright. Separation of gas, oil, and water phases. The gaseous phase at its top (mainly hydrogen) enters the circulating hydrogen gas-liquid separation tank, where it is circulated by a hydrogen circulation pump. Its oil phase enters the cold light fraction oil phase chamber. Its aqueous phase enters the cold low-boiling fractionation chamber. 4) Cold low-pressure separator: Cold low-pressure separator. Horizontal. Separation of gas, oil, and water phases