4.7 Article

Efficient Conversion of Biomass-Derived Saccharides to Levulinic Acid Using Silicotungstic Acid

Journal

ENERGY & FUELS
Volume 37, Issue 9, Pages 6642-6650

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.energyfuels.3c00948

Keywords

-

Ask authors/readers for more resources

This study demonstrated the potential of using heteropoly acid as a catalyst in a green solvent system composed of gamma-valerolactone and water for the production of levulinic acid from biomass-derived saccharides. Silicotungstic acid had the highest catalytic activity and could achieve a levulinic acid yield of 87.7% from glucose conversion under optimal conditions.
The conversion of biomass-derived saccharides into platform chemicals is of immense importance for biorefineries. This study demonstrated the potential of using heteropoly acid as a catalyst in a green solvent system composed of gamma-valerolactone and water for the production of levulinic acid from biomass-derived saccharides. The effects of heteropoly acids with different central heteroatoms (P and Si) and addendum atoms (W and Mo) on the catalytic conversion of glucose to levulinic acid in the gamma-valerolactone-water system were studied. According to the experimental results, silicotungstic acid had the highest catalytic activity. In comparison to other catalysts, silicotungstic-acid-catalyzed glucose conversion could obtain the highest levulinic acid yield under the same reaction conditions, which was mainly attributed to the lower ratio of Bronsted/Lewis acid of silicotungstic acid. In optimal circumstances, 87.7% levulinic acid was obtained by glucose conversion at 190 degrees C and 60 min. Meanwhile, non-protonic polar solvent gamma-alerolactone could promote the slight conversion of glucose to pentose, producing about 9% furfural. In addition, a kinetic model was established to further evaluate the reaction process of glucose conversion to levulinic acid and furfural. The green reaction system was also appropriate for other saccharides. In this study, a new approach could be provided to efficiently convert saccharides into platform chemicals.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available