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weird behaviour of a user added component

weird behaviour of a user added component

weird behaviour of a user added component

I've added the component "EktasolveEB Acet" C8H16O3 with the UniFAC method.
"EktasolveDB Acet" C10H20O4 is already included and has a similar chemical structure to the new component.
First I started an absorption/desorption simulation with
the included component EktasoveDB Acet and it is characterized by a good absorption behaviour (in oil) and a moderate desorption behaviour (vaccum steamstripping).
The added component EktasolveEB Acet has a very bad
absorption behaviour (in oil and water) but therefore a very good desorption behaviour.
Because both components have the same UNIFAC groups, I couldn't believe of such a strong different behaviour.
Does somebody have experiene in this problem?

RE: weird behaviour of a user added component

Did you call the ChemCad Help Desk 800-CHEMCAD?

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