On the convergence problem of absorption
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I have been self-studying the Aspen simulation software recently and encountered some problems, so I came here to ask for advice. I read a sentence in a book that says: The Standard algorithm, when Absorber=Yes, is suitable for stripping and absorption towers, and it converges rapidly； But convergence is difficult when solving the design specifications for the intermediate circuit! What are the design specifications for intermediate circuits? ? ? I’ve been thinking about it for several days; I hope fellow sailors can help me figure it out. Thank you very much.
It seems a bit difficult; come in and learn it**
The design specification is the intermediate circuit.
Solve design specifications in the external circuit? What does this mean? Teacher