Hello,
I am trying to simulate an formaldehyde absorption in water in aspen plus. My problem is that no matter what fluid package I use most of the formaldehyde leaves in the vapor phase and not in the aqueous phase. I have to use a ridiculously high water stream to absorb most of the formaldehyde and then I end up with a 5% solution.
Does anyone have an idea what fluid package to use or some other hint how to model an absorption column for this case?
kind regards,
steve