Hydrogen separation from multicomponent gas mixtures containing CO, N2 and CO2 using Matrimid® asymmetric hollow fiber membranes

► Hydrogen recovery from a waste mixed gas stream of the process industry. ► Mixed (H2/CO2/CO/N2) gas separation through Matrimid® asymmetric hollow fiber membrane. ► Significant differences between pure gas and mixed gas permeabilities. ► CO2 induced accelerated plasticization. ► Improved H2/CO2 selectivity for hollow fiber in relation to dense films.