Gas‐Phase Partial Oxidation of Lignin to Carboxylic Acids over Vanadium Pyrophosphate and Aluminum–Vanadium–Molybdenum
- 11 September 2015
- journal article
- research article
- Published by Wiley in ChemSusChem
- Vol. 8 (20) , 3424-3432
Abstract
Lignin is a complex polymer that is a potential feedstock for aromatic compounds and carboxylic acids by cleaving the β‐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 600 K. 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.Keywords
Funding Information
- NSERC
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