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Langmuir Adsorption Equilibrium using Reaction Engineering

Posted Nov 15, 2011, 9:33 p.m. EST Chemical Reaction Engineering Version 4.2 0 Replies

Thorsten Spillmann
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Hi all,

I am trying to model the adsorption of water onto a desiccant surface using the Reaction Engineering Module. When using the Langmuir Equation I get the following reaction:

vapour + free sites = filled sites (Equilibrium Reaction)
K = [filled sites]/ ([vapour] [free sites]) (Equilibrium Constant)

with
number of free sites + number of filled sites = overall number of sites = const.

I have set up the equilibrium reaction in a semibatch reactor using a constant feed stream for the vapour and a fixed initial condition of free sites, but don't know how to implement the link between free and filled sites, i.e. make the overall number of sites constant.

Does anybody know how to best accomplish that?
Would be greatly appreciated!
Many thanks,

Thorsten
0 Replies Last Post Nov 15, 2011, 9:33 p.m. EST
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Hello Thorsten Spillmann

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