Journal
CHEMSUSCHEM
Volume 9, Issue 12, Pages 1392-1396Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201600172
Keywords
biofuels; catalysis; green chemistry; lignin; valorization
Funding
- Swedish Energy Agency
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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.
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