The Maxwell-Stefan description of mixture diffusion in nanoporous crystalline materials

- There are two types of coupling for mixture diffusion.
- Correlations cause slowing-down of the more mobile partners in membranes.
- Thermodynamic coupling causes overshoots in transient mixture uptake and permeation.
- Transient breakthroughs in fixed beds are influenced by diffusional influences.
- Thermodynamic coupling effects enhance the separation of alkane isomers with MFI.