What is the optimal temperature for oil-water separation?
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In the hydrocracking unit, the distillation column has been producing water frequently recently. SEI suggests that the high-temperature setting is too high and the low-temperature setting is too low – what is the optimal temperature?
The optimal temperature for oil-water separation is closely related to the properties of the oil. I wonder if your facility has a heat recovery unit; if it does, the oil subjected to cold fractional separation is mostly gasoline and diesel, and the temperature for this process should be maintained between 40 and 50 degrees. If no such unit is available, the oil processed through cold fractional separation contains waxes, which tend to form emulsions with water at low temperatures, so the temperature should not be lowered too much – it is generally advisable to keep it between 70 and 80 degrees.