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[VrushaliVA]

Hi,

I am doing crude simulation in Unisim. I started with installing oil on Unisim using the tutorial available on google for installing oil in Hysys.  Now in the tutorial they have taken a sample assay in which they have data of cumulative yield in wt% at mid point. Now my question is as follows:

1. They never mention the cumulative yield in wt % at mid point explicitly in any crude assay. So is this supposed to be derived from the cumulative yield in wt% at IBP (Initial Boiling Point) because only IBP data is given.

2. How do you find mid point data? I need mid point data because all input curves except distillation are on mid point basis.