A beginner in hydrocracking seeking help
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I would like to ask a question of the experts: Regarding the production of diesel through the hydrocracking of paraffin oil, assuming that the boiling range of the diesel sample analyzed on that day is 230–380°C (with the requirement that the 95% point should not be higher than 370°C), and the flash point is 90°C, the 95% point of the diesel exceeds the specified limit. The boiling range of the diesel analysis sample on the second day was 220–350°C (with the specified 95% point not exceeding 370°C); its flash point was 75. The diesel met the standards, but it was of lower quality. What is being asked is: 1. If I mix these two types of diesel together, will the density of the resulting diesel be an average of the two? Is the overall diesel fraction a compromise? A possible compromise could be: 225–370°C? Is it still the one with the lowest initial boiling point of 220–370°C? Is the flash point of the blended diesel a compromise? Could it be 80? Is it still the lowest 75? The compromise referred to here does not mean exactly half, but rather something in between
It’s best to have it analyzed after adding the mixture; it’s not easy to calculate this, as most methods rely on empirical formulas that may not be accurate and can only serve as a reference. Additionally, you don’t know the mixing ratio either!
Density is not compromised; the formula for calculating the density of a mixed liquid is: 1/p = W1/P1 + W2/P2 + … + Wn/Pn; where p is the density of the mixed liquid； The type with a tendency toward a lower flash point (the flash point is due to vaporization) ； Since the flash point of diesel is used to determine the content of its light components, the closed-cup flash point is not additive. Other data shall be subject to laboratory tests.
Ask about how to conduct the flash point test later; it’s determined by the light components, bro. What’s the initial boiling point of the blend?