How Reliable Is the Ideal Adsorbed Solution Theory for the Estimation of Mixture Separation Selectivities in Microporous Crystalline Adsorbents?
Rajamani Krishna, Jasper M. van Baten
Abstract
molecules at the window regions of 8-ring zeolites such as DDR and CHA or within pockets of MOR and AFX zeolites. Thermodynamic non-idealities are evidenced for water/alcohol mixtures due to molecular clustering engendered by hydrogen bonding. It is also demonstrated that thermodynamic non-idealities can be strong enough to cause selectivity reversals, which are not anticipated by the IAST.
Topics & Concepts
Microporous materialAdsorptionMoleculeChemistryMetal-organic frameworkSelectivitySelective adsorptionThermodynamicsPhysical chemistryOrganic chemistryPhysicsCatalysisCarbon Dioxide Capture TechnologiesMetal-Organic Frameworks: Synthesis and ApplicationsPhase Equilibria and Thermodynamics