Journal
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
Volume 41, Issue 22, Pages 2769-2777Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15567036.2019.1576072
Keywords
H-Beta zeolite; 5-Hydroxymethylfurfural; glucose; phosphoric acid; biphasic solvent system
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The production of 5-hydroxymethylfurfural (5-HMF) from glucose by using phosphoric acid (H3PO4) treated H-Beta zeolite (P-H-Beta) as the catalyst in a one-pot biphasic solvent system is presented. The catalysts with varied contents of H3PO4 over Beta-zeolite were synthesized by wet method and characterized by X-ray diffraction, scanning electron microscopy, fourier transform infrared spectroscopy, and NH3-temperature-programmed desorption. Under the optimized catalytic conditions, the catalyst prepared by the treatment of H-Beta zeolite with 2 M H3PO4 (2P-H-Beta) gave high conversion with almost 54% yield of 5-HMF at 150 degrees C for 90 min reaction time and 0.1:1 mass ratio of catalyst to glucose with the THF/NaCl/H2O solvent system. This resulted from the appropriate acidity of the strong acid sites on the catalyst which promoted the formation of 5-HMF and its effective partition in the biphasic H2O/THF/NaCl solvent system.
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