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Fig. 3 | Biotechnology for Biofuels

Fig. 3

From: From beech wood to itaconic acid: case study on biorefinery process integration

Fig. 3

Nanofiltration for separation and recovery of oxalic acid from a sugar containing aqueous phase from the OrganoCat process (see also Fig. 1 and [36]). a Permeate flux in dependency of the permeate yield for different total concentrations. b Retention of glucose, xylose, and oxalic acid for different sugar concentrations. Conditions: Desal DL nanofiltration membrane in a stirred 1.4 lL dead-end filtration cell, 0.015 m2 membrane area, 40 bar, 300 rpm

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