Problems with diesel flash point and cold filter plugging point
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With the hydrogenation feed oil already fixed, is it possible to lower the cold filter point by reducing the diesel flash point? It seems there’s no connection between the two. I kindly ask all the experts to share their opinions
The cold flow point is closely related to the properties of the raw material, while the flash point is generally adjusted by the temperature at the bottom of the distillation tower! It is related to the freezing point; it can be temporarily adjusted using antifreeze agents, but this effect cannot be maintained for a long time! Therefore, it is still necessary to adjust the raw material ratio at the source!
I think the same way too; it’s just a slight adjustment to lower the flash point, with some of the gasoline being converted into diesel. However, while lowering the flash point, it’s necessary to prevent the pump from running dry
No, the flash point is related to the initial boiling point and the 10% point, while the cold filter point is related to the 95% point and the dry point.
The flash point has nothing to do with the cold filter point; it is related to the operation of the distillation tower, while the cold filter point is related to the properties of the raw material
The flash point has nothing to do with the cold filter point; it is related to the operation of the distillation tower, while the cold filter point is related to the properties of the raw material
It is the components of diesel – alkanes, cycloalkanes, and aromatics – that determine the cold filter point
This post was last edited by wangweiaqpec on 2017-12-19 at 19:48. There is no connection between the two.
The flash point is determined by the content of light components, primarily based on the initial boiling point and the boiling point at 10% volume； The cold filter point is related to the 95% point; the two are not connected. However, the cold filter point can be fine-tuned by lowering the flash point. Do all of you agree?
The reduction in flash point has little effect on the cold filter plugging point; the cold filter plugging point is primarily influenced by the content of heavy components in the oil, whereas the flash point is affected by the lightest components. The inclusion of a small amount of gasoline in diesel can cause a sharp drop in the flash point, but there is no significant change in the cold filter plugging point
The flash points are 60 degrees and 45 degrees; the cooling rate varies. When there is a higher proportion of light components, the cooling rate is lower. An increase in cracking temperature, along with a lower dry point of the feedstock, results in a lower density