Hello,
I am trying to build a stripper model in which the overhead vapour will be used as heat source. I will be using reboiler at the bottom of the column without any reflux at the top; however some of the liquid knocked out from the overhead vapour will be returned to the column to replace the reflux function. I am currently using the reboiler absorber column palette available in HYSYS, but I have problem with convergence especially when the knocked out liquid is introduced into the column using recycle and side stream ops.
p.s: I could reach convergence after increasing the solver tolerance to 5E-3; but this is surely not the most accurate result.
Please advise if I am doing the right method? What did I miss?
Greatly appreciate your help
Regards,
Damara Rose