Elucidation of the Catalytic Pathway for the Direct Conversion of Furfuryl Alcohol into γ-Valerolactone over Al₂O₃-SiO₂ Catalysts.

ABSTRACT: The one-pot conversion of furfuryl alcohol (FA) into GVL was investigated over the sol-gel-synthesized Al₂O₃-SiO₂ (AlSi) catalysts with various Al₂O₃ loadings (0.2-10 wt %) and commercial zeolites including MFI-1, H-ZSM5, H-beta, and HY-15 in a batch reactor under mild reaction conditions (130 °C, 1 bar N₂, and 15-120 min). The reaction pathways depend largely on the acid properties of the catalysts, especially the types of Bronsted (B) and Lewis (L) acid sites. A tandem alcoholysis/hydrogenation/cyclization sequence is dominant on the AlSi catalysts (Al ≥ 4%) and all the zeolites except MFI-1, resulting in complete conversion of FA and GVL with an yield 64-75% with IPL as the major side-product, regardless of the difference

SUBMITTER: Chuangpusri P 

PROVIDER: S-EPMC10719920 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature