Highlighting the Influence of Thermodynamic Coupling on Kinetic Separations with Microporous Crystalline Materials.

ABSTRACT: The main focus of this article is on mixture separations that are driven by differences in intracrystalline diffusivities of guest molecules in microporous crystalline adsorbent materials. Such "kinetic" separations serve to over-ride, and reverse, the selectivities dictated by mixture adsorption equilibrium. The Maxwell-Stefan formulation for the description of intracrystalline fluxes shows that the flux of each species is coupled with that of the partner species. For n-component mixtures, the coupling is quantified by a n × n dimensional matrix of thermodynamic correction factors with elements Γ _ij ; these elements can be determined from the model used to describe the mixture adsorption equilibrium. If the thermodynamic coupling effects are essentia

SUBMITTER: Krishna R 

PROVIDER: S-EPMC6398361 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature