Extraction of Lignin from Kraft Black Liquor by Membrane Filtration

Anders Arkell, Johanna Olsson, Lars Stigsson, Ola Wallberg

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingResearch


Lignin from black liquor in the kraft pulping process is a potential raw material for production of renewable chemicals and fuels. However, an efficient extraction method for the lignin from the black liquor is needed. Therefore, two new processes have been designed, which both utilize membrane filtration for the isolation of lignin from the kraft black liquor. The first one includes precipitation and filtration for the production of a solid lignin, while the second involves a base-catalysed reaction and organic-solvent extraction for the production of a precursor for liquid fuels.
Original languageEnglish
Title of host publication[Host publication title missing]
Number of pages2
Publication statusPublished - 2014
EventNordic Wood Biorefinery Conference - Stockholm
Duration: 2014 Mar 25 → …


ConferenceNordic Wood Biorefinery Conference
Period2014/03/25 → …

Subject classification (UKÄ)

  • Chemical Engineering


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