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Modeling an ion-exchange packed-bed reactor
Posted Feb 14, 2019, 1:20 p.m. EST Chemical, Porous Media Flow, Chemical Reaction Engineering Version 5.3a 2 Replies
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Hello Everyone!
I want to model an ion-exchange packed bed reactor. I would like to know which physics modules I should use. I need to model a packed bed tubular reactor in which the bed contains an ion-exchange resin. The material that is entering the reactor contains the ion that will be exchanged by the one in the resin, so the material at the outlet of the reactor we will have the ion that was originally in the resin.
I will really appreciate your help.
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If you get a reply, please tell it to me. I have tried to model an ion-exchange membrane with very little of success. Fixed charge within the membrane poses a difficult problem which I do not know how to approach. I have tried the electrostatics module combined with Transport of diluted species. Also I have tried Nernst-Planck equation with an infinitely small mobility of the fixed charges, but that does not give a plausible steady-state solution either.
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Hi
I found in the knowledge base a blog about ion-exchange membranes. That was exactly what I was looking for. Perhaps you could read it and get ideas to your own model. The model is included.