Effect of polyethyleneglycol on CH4 permeation through poly(amide-b-ethylene oxide)-based nanocomposite membranes

- A three-phase polymer/liquid/solid (PEBA/PEG/zeolite X) membrane was fabricated.
- Nanocrystalline zeolite X was used as filler to stabilize membrane polymeric matrix.
- Introducing zeolite to PEBA matrix caused its total free volume to decrease.
- A gradual decrease with pressure was observed in CH4 permeability for the membranes.
- In all the experiments, operating pressures varied from 2 to 8 bar.