Grand canonical Monte Carlo simulation of sorption of nitrogen and oxygen has been carried out on LiLSX
zeolite structures and accurate adsorption data was measured on LiLSX powder using the isosteric technique.
The position of Li cations in the LiLSX structure was predicted using the MSI Cerius2 cation locator module.
Simulation of sorption on various structures of LiLSX, which contain Li cations at different locations, indicate
that sites SIII and SIII‘ show similar interaction energies and that Li cations in site SII are not involved in the
sorption process. The simulated values for sorption capacity, N2/O2 selectivity and isosteric sorption heat are
in good agreement with experimental data. The simulated values of sorption capacity and isosteric sorption
heat on the predicted structures are also close to those obtained on structures built by using crystal structure
data and the experimental sorption data obtained at low pressures.
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