Questions regarding the diesel extraction temperature and its final boiling point
Thread Content
The diesel extraction temperature is around 200 – why is the final boiling point then 340? Instead of 200, how is the composition of the liquid phase on the tray calculated at 200 degrees? A pro please help solve this.
The extraction temperature of the tower is equivalent to the final boiling point under equilibrium vaporization, whereas the final boiling point you mentioned refers to the temperature under Enneberg distillation; it is the temperature of the same oil product under different distillation processes. According to the Enth equation for distillation and the curves of equilibrium vaporization, the final boiling point of Enth distillation is higher than that of equilibrium vaporization. So the extraction temperature is much lower than the final boiling point.