Non-ideal multicomponent adsorption in TR-PBO membranes by reactive vacancy solution theory

The studies on Thermally-Rearranged PolyBenzOxazole (TR-PBO) membranes report detailed analyses of the relation between free volume and solubility, diffusivity and permeability1-4. These studies conclude that TR-PBO has high permeability mainly due to a high free volume. However, the behaviour of these membranes in non-ideal conditions subject to multicomponent sorption at high pressure has not been considered yet in the literature, which is indeed the aim of our work.