Catalytic conversion of glucose to methyl levulinate over metal-modified Beta zeolites

Abstract Methyl levulinate was selectively formed from glucose and methanol over a copper modified Beta zeolite bifunctional catalyst at 180 °C under argon atmosphere. The selectivity to methyl substantially exceeded previously reported in the open literature results. modification done through an ion-exchange method using solution of nitrate, followed by drying calcination catalyst. Copper changed distribution acid sites namely, less Brønsted more Lewis were observed with FTIR pyridine adsorption. Application proton form H-Beta-25 gave yield ca. 89%, which could be elevated addition copper, as apparent exceeds 99%, assuming that glucosides are eventually transformed levulinate. non-acidic Cu/SiO 2 completely inactive formation. Metal Sn Zn did not perform well Cu formation during transformation.