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Updated: Jan 26, 2026

Ultrafast Lignin Extraction from Unusual Mediterranean Lignocellulosic Residues
Published on: March 9, 2021
Chromatographic Recovery of Monosaccharides and Lignin from Lignocellulosic Hydrolysates
Jari Heinonen1, Juha Tamper2, Markku Laatikainen1
1Lappeenranta University of Technology School of Engineering Science Skinnarilankatu 34 53850 Lappeenranta Finland.
Abstract:
The chromatographic recovery of monosaccharides and lignin from lignocellulosic hydrolysates was studied at laboratory and pilot scale. A weak cation-exchange resin in sodium form and a water eluent gave good separation efficiency. Scale-dependent phenomena, especially viscous fingering resulting from the large viscosity and density differences between the hydrolysate feed and eluent, were observed. The issue was resolved in the pilot scale with appropriate selection of the flow direction, and a high productivity was achieved at 95 % recovery yield. The pH value of the feed was found to have no effect on the actual separation; however, the resin was significantly less colored at a higher pH value.
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