Evaluation of potassium glycinate as a green solvent for direct air capture and modelling its performance in hollow fiber membrane contactors

•The vapor–liquid equilibria and absorption kinetics of CO2 in GlyK are evaluated.•GlyK is identified as a viable solvent for use in direct air capture applications.•A model simulates the performance of GlyK in commercial scale HFMCs.•GlyK can remove up to 83 % of the CO2 in ambient air.•Solvent regeneration temperatures can be kept well below 100 °C.