Membrane Systems for the Recovery of Hydrogen from Multicomponent Gas Mixtures Obtained in Biomass Gasification

摘要

This work first generally reviews possible membrane materials for the hydrogenrnenrichment of biomass gasification producer gas mixture. Subsequently two permeatorrnarrangements (single stage and two-stage with sweep) equipped with a glassyrnmembrane material are evaluated through numerical modelling. The evaluation of thernpermeator systems focuses on critical hydrogen upgrading parameters like achievablernhydrogen purity, hydrogen recovery and compression energy requirement. It is shownrnthat the two-stage arrangement with sweep allows production of hydrogen withrnrelatively high purity (above 98 % v/v) and recovery.