Journal
ACS CATALYSIS
Volume 6, Issue 9, Pages 6141-6145Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.6b02052
Keywords
biomass conversion; terephthalic acid; hetegeneous catalysis; hydrogenation demethoxylation; carboxylation reaction
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Funding
- Singapore-MIT Alliance for Research and Technology (SMART)
- Institute of Chemical and Engineering Sciences (ICES A*STAR)
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Vanillic acid and syringic acid were converted to terephthalic acid via a two-step process using a fixed-bed reactor. The cascade route includes hydrogenation demethoxylation and carboxylation reactions. Activated carbon (AC) supported MoWBOx, and PdNiOx were determined to be suitable catalyst precursors for the process. An intermediate of p-hydroxybenzoic acid (HBA) was produced from the demethoxylation in 71.6% selectivity, and the terephthalic acid was obtained in 58.7% yield with 66.4% HBA conversion.
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