Dear all
Hope you are well.
I'm at the stage where I could study TSA (Temperature Swing Adsorption) and PSA (Pressure Swing Adsorption) separately, but I want to study the combined system of TPSA (Temperature Pressure Swing Adsorption), more specifically, TVSA (Temperature Vacuum Swing Adsorption).
When I add a vacuum pump to my TSA flowsheet to make it TVSA, I'm having challenges with convergences. Would you have any suggestions or comments on my approach?
Or would there be any materials about VSA in Aspen Adsorption software?
Thank you so much for your precious time always.
Kind regards,
So-mang Kim
Dear,
if you want to work or TVSA or VPSA you should change cyclic configuration for simulation rather than adding vacuum pump. If you want pump energy calculation then you can used but for cyclic operation its necessary.
This is an out-of-the-box idea worth trying.
The utility of this could be very application specific.
What we may look for is the potential advantage in terms of swinging between lower temperature windows to leverage the better regeneration efficiencies because of lower partial pressure of the vapor phase components.
All the best