Gas/Vapor Transport

Transport of gases and vapors in membranes depends first of all on their micro- and macroscopic structure. There is a fundamental difference between dense membranes, where transport takes place through the material of the membrane itself, and porous membranes, where the transport takes place through the open space of the pores in the membrane. In the latter, different transport modes exist, depending on the size of the pores and on the interaction of the gases and vapors with the membrane material and with themselves.