How to control the flash point of hydrogenated diesel
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Let’s talk about it from that perspective
Through control of the bottom temperature of the distillation tower, feed temperature, top temperature, and pressure
What factors can be said to influence the flash point of diesel? 1. Bottom temperature of the distillation tower 2. Top temperature of the distillation tower 3. Pressure in the distillation tower 4. Reflux flow rate from the distillation tower 5. Reflux ratio of the distillation tower 6. Properties of the raw material 7. Testing error
The radial temperature difference of the equipment is too large; consider whether the mixture distribution is uniform, as well as whether the gases in the mixing tank are evenly mixed
Stirring steam volume or reboiler load
This is the issue related to the operation of the distillation tower; what’s there to say?
The most direct method is to adjust the amount of stripping steam
It’s related to the adjustment of the distillation system; what was said above is already very clear. . .
First, one needs to understand what flash point is and what factors influence it; thereafter, adjustments can be made based on those factors. Simply put, the flash point is determined by the light components, that is, the first 10% of the distillate. A low flash point indicates an excess of light components, and the solution is to evaporate these light components
Under normal operation, it is generally required to adjust the bottom temperature of the tower. If the flash point is high, increase the bottom temperature of the tower; if it is low, decrease it.
The top temperature is mainly used to control the initial boiling point