(682f) Aqueous Oxidation of Xylose to Xylonic Acid over Synergistic PtCu Catalysts Using Molecular O2
AIChE Annual Meeting
2019 AIChE Annual Meeting
Catalysis and Reaction Engineering Division
Deoxygenation and Oxidation in Biomass Upgrading
Thursday, November 14, 2019 - 2:00pm to 2:18pm
In this paper, we report a series of ZrO2 supported monometallic Pt and bimetallic PtCu catalysts for effective oxidation of xylose to xylonic acid. The preliminary results clearly suggest bimetallic catalysts show promising performances (X ~ 70%) compared with monometallic ones (X ~ 50%) at 353 K. Pt/Cu ratios were also modified to further understand how catalyst formulation affect xylonic acid yield. The experimental results show that PtCu0.5/ZrO2 catalyst exhibits optimal conversion compared with other PtCu/ZrO2 catalysts at temperature of 353K. In addition, the influence of metal-metal and metal-support interaction on catalyst performances will also be studied and discussed in our presentation. This study is useful in high value-added applications of xylose and understanding the mechanism of the oxidation of xylose.
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