Aspen Plus simulation of the final boiling point of petroleum products
Thread Content
Recently, I have been using Enneagram distillation data for a certain oil type to simulate a distillation column; D86CRV and D86 IBP/FBP were set as values in the property sets. After running the simulation, two issues were observed in the flow rate results: 1. There is a significant difference between the 0% temperature for D86CRV and that of D86IBP, as well as between the 100% temperature for D86CRV and that of D86FBP – the difference is around ten degrees； 2. In both of the above methods, the final distillation temperature was higher than that of the Enneberg distillation of the feed. I am very puzzled by the above phenomena; I would be extremely grateful if the teachers could help clarify them!
There are no such things as 0% and 100% values; usually, the values are 0.5% and 99.5%. The values calculated by software are determined after fitting the values you enter into a curve, and naturally, the error between the starting and ending points is large
Question: What does the large difference between the 100% point temperature indicated in the D86CRV report and the D86 FBP temperature mean? Which final boiling point temperature should be used for design specifications? ?
Did you find the answer upstairs? I have the same question now.