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Light diesel has a low 95-point rating; how can it be improved?

2009-04-16View Original

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In the catalytic fractionation tower, the value at 95 degrees is often above 340, while the target value is 365; the density of the slurry is 1019, and the yield is 4.5. Increasing the temperature of the baffle plates makes it impossible to maintain the liquid level at the bottom of the fractionation tower. The recycle ratio is 0.06. Is it possible to reduce the amount of slurry that is discharged? What are the reasons for the low value at 95 degrees, and how can it be increased?
Reply #22009-04-16
Could you tell me what the temperature of the 16-layer plate and the temperature at the bottom of the tower are?
Reply #32009-04-16
Just increase the outlet temperature; I’m not sure what the density of your diesel is.
Reply #42009-04-16
Isolating other factors and discussing only the 95-point value is insufficient to accurately determine the cause; please provide additional information on the relevant process parameters. . . 1. Extraction temperature 2. Properties of the raw material 3. Actual freezing point: lol
Reply #52009-04-16
**Isn’t the 95% recovery temperature for diesel in the standard specified to be no more than 365 degrees? 340 degrees is acceptable
Reply #62009-04-16
The quality of diesel cannot be judged solely based on the 95% point; it is necessary to take into account factors such as freezing point, density, and colority for a comprehensive assessment. Adjusting solely based on the 95% point has no practical meaning. It might even affect product quality.
Reply #72009-04-16
Is it due to changes in the composition, with a high content of aromatic hydrocarbons? Is the density also high?

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