Alcoholysis of High-Solid xylose residue for methyl levulinate preparation and its kinetics

Zhen Ma, Jingyang Zhang, Yucheng Lin, Xiuli Han, Haoran Wu*, Chunbao Xu, Chun Chang*

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

Achieving the efficient biomass alcoholysis to methyl levulinate (ML) under high solid content conditions and establishing its kinetic model are crucial, but remain challenging. Here, the alcoholysis of microcrystalline cellulose (MC) and xylose residue (XR) to ML under high solid content conditions using CuSO4 as a catalyst was reported. High yield (34.96 wt%) and concentration (41.48 g/L) of ML from MC alcoholysis are achieved under the optimal conditions. Meanwhile, the yield and concentration of ML from XR alcoholysis can reach 26.73 wt% and 31.72 g/L, respectively. The alcoholysis pathways of MC and XR are proposed. A mixed model consisting of a shrinking core model and a pseudo-first-order kinetic model was established to elucidate the alcoholysis behavior of biomass. The generation of glucose is the rate-limiting step of the alcoholysis process, and there is no significant dependence between the activation energies of main reactions and the solid content of biomass. © 2025  Published by Elsevier Ltd.
Original languageEnglish
Article number132063
JournalBioresource Technology
Volume419
Online published13 Jan 2025
DOIs
Publication statusPublished - Mar 2025

Research Keywords

  • Activation energy
  • Biomass
  • High solid content
  • Methanolysis

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