Abstract

Precipitated kraft lignin from black liquor was converted into green diesel in three steps. A mild Ni-catalyzed transfer hydrogenation/hydrogenolysis using 2-propanol generated a lignin residue in which the ethers, carbonyls, and olefins were reduced. An organocatalyzed esterification of the lignin residue with an insitu prepared tall oil fatty acid anhydride gave an esterified lignin residue that was soluble in light gas oil. The esterified lignin residue was coprocessed with light gas oil in a continous hydrotreater to produce a green diesel. This approach will enable the development of new techniques to process commercial lignin in existing oil refinery infrastructures to standardized transportation fuels in the future.

Keywords

biofuels; catalysis; green chemistry; lignin; valorization

Published in

ChemSusChem
2016, Volume: 9, number: 12, pages: 1392-1396
Publisher: WILEY-V C H VERLAG GMBH

SLU Authors

• Agback, Peter

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

Sustainable Development Goals

SDG7 Ensure access to affordable, reliable, sustainable and modern energy for all


UKÄ Subject classification

Organic Chemistry


Publication identifier

DOI: https://doi.org/10.1002/cssc.201600172

Permanent link to this page (URI)

https://res.slu.se/id/publ/77949