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Industrial & Engineering Chemistry Research

Industrial & Engineering Chemistry Research

IF: 3.79
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Intensified Synthesis of Levulinic Acid from Fructose over Solid Acid Catalysts in Micropacked Bed Reactors

Published:11 December 2024 DOI: 10.1021/acs.iecr.4c03792
Wei-Yao Yang, Hong-Da Zhang, Jin-Yan Hu, Zhi-Ping Zhao, Le Sang

Abstract

The efficient production of levulinic acid (LA) from biomass fructose was achieved in micropacked bed reactors (μPBRs) over HND-580. Based on the residence time distribution (RTD) experiment, it was determined that the flow behavior of the single liquid phase flow in μPBRs was close to plug flow with the dimensionless axial dispersion number of 0.0083–0.0352. The mean residence time is 31.4–968.3 s under the experimental range; 98.2% fructose conversion and 74.9% LA yield were obtained within 454.2 s at 150 °C, 0.1 mL/min, and 2.0 MPa. Under the same conditions, 100% conversion and 98.3% LA yield were obtained by selecting HMF as substrate. The space-time yield (STY) of LA in μPBRs was 1–2 orders of magnitude larger than that of conventional batch reactors. Also, a kinetic model was established to predict the fructose conversion rate and LA yield, and the fitting degree with the experimental value was 0.978.

Substances (5)

Materials
Procduct Name CAS Molecular Formula Supplier Price
Sodium chloride 7647-14-5 ClNa 1214 suppliers $5.00-$6678.62
Sodium hydroxide 1310-73-2 NaOH 1210 suppliers $14.00-$16472.00
Formic acid 64-18-6 CH2O2 1166 suppliers $22.13-$5923.38
D(+)-Glucose 50-99-7 C6H12O6 1113 suppliers $6.00-$26950.00
D(-)-Fructose 57-48-7 C6H12O6 646 suppliers $12.00-$16152.00

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