Fig. 2From: Efficient dehydration and recovery of ionic liquid after lignocellulosic processing using pervaporationChallenges related to high IL dehydration in current IL separation methods: a distillation, b electrodialysis and c reverse osmosis. Detailed information on Fig. 2b is described in Additional file 1: Figure S7; data in Fig. 2c on upper limit of osmotic pressure for an industrial setting were obtained from Reference [20]Back to article page