How to adjust when the diesel flash point is too low
Thread Content
What other operations are there besides raising the bottom temperature of the tower!
Possible: Reduce distillation column reflux to produce more naphtha.
For example, reboiling temperature, top reflux, stripping steam volume, distillation column outlet
If you first understand what a low flash point means, then it will become clear that whatever method is used is intended to reduce the light components at the bottom of the tower.
Why does the flash point increase when the top temperature rises?
Raising the boiling temperature and reducing the pressure can both help the light components to vaporize more easily, causing the cutting point to shift backward and the flash point to increase.
Top temperature, bottom temperature, reflux ratio, top pressure. . . The ultimate goal is the same: to vaporize the light components at the bottom of the tower to the top of the tower. . .
The flash point is determined by the process before 10%; a lower value indicates an excess of light components, and increasing the bottom temperature or the top temperature helps to vaporize these light components
The naphtha extraction control valve can be opened to reduce the backflow rate