Diesel hydrogenation
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If the temperature at the top of the stripping tower increases, will the flash point of diesel increase while all other operating conditions remain unchanged?
The main task of the stripping tower is to remove hydrogen sulfide; flash point control should be the responsibility of the distillation tower.
If it is a fractional distillation tower, then what causes the flash point to decrease?
Increasing the temperature at the top of the stripping tower results in less reflux at the top, an increase in the dry point of the naphtha at the top, and an elevation in the flash point of diesel as well； Increasing the bottom of tower temperature and feed temperature has a significant effect on raising the diesel flash point.
It’s hard to say; in theory it’s possible, but the distillation tower is what really determines the flash point of diesel. Factors such as the temperature at the bottom of the distillation tower, as well as the temperature at the top of the tower, are particularly important.
First, you need to understand what affects the flash point of oils – it is the light components in the oil. As the temperature rises, the amount of light components in diesel decreases, and as a result, the flash point increases.
Hehe, I think the most direct consequence is that the return tank reaches its full liquid level.