HI
I am working on sizing of the Deethaniser column in NGL fractionation unit. as PFD the Deethaniser consists of 2 sections. Upper section diameter is 5.183 meters and lower section diameter is 8.23 meters and column height is 53.8 meters . Based on the plant data , I have simulated in HYSYS.
Sizing of the column is carried out by using tray sizing utility .however, HSYS results are not matching with the plant data (Diameter of upper section is 4.1 meters and lower section is 7.7 meters and column height is 51 meters)
Please share your experience, how to size columns to achieve the plant data