Journal
CHEMSUSCHEM
Volume 8, Issue 20, Pages 3424-3432Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201501036
Keywords
biomass; carboxylic acids; heterogeneous catalysis; oxidation; supported catalysts
Funding
- NSERC
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Lignin is a complex polymer that is a potential feedstock for aromatic compounds and carboxylic acids by cleaving the -O-4 and 5-5 linkages. In this work, a syringe pump atomizes an alkaline solution of lignin into a catalytic fluidized bed operating above 600K. The vanadium heterogeneous catalysts convert all the lignin into carboxylic acids (up to 25% selectivity), coke, carbon oxides, and hydrogen. Aluminum-vanadium-molybdenum mostly produced lactic acid (together with formic acid, acrylic acid, and maleic anhydride), whereas the vanadium pyrophosphate catalyst produced more maleic anhydride.
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