Dewatering of 2,2,3,3-tetrafluoropropan-1-ol by hydrophilic pervaporation with poly(vinyl alcohol) based Pervap™ membranes

•Pervaporation of water-tetrafluoropropanol (TFP) mixtures was studied.•Effect of different process conditions on separation efficiency was evaluated.•Efficient dewatering of TFP using Pervap™ hydrophilic membranes was proven.•Batch mode pervaporation with Pervap™ 2200 and 2216 membranes was suggested. Pervap™ 2200, 2201, 2216, 2255, and 2510 hydrophilic, PVA membranes were investigated in pervaporation of water-tetrafluoropropanol mixtures. Physicochemical properties of membranes were characterized by determining the contact angle (CA) of water and glycerol and the surface free energy (SFE). The separation and transport properties of membranes were determined during vacuum pervaporation in contact with water-TFP mixtures containing up to 22wt.% water. It was found that all membranes were hydrophilic (CA