Hemicellulose hydrolysis and hydrolytic hydrogenation over proton- and metal modified beta zeolites

Laura Faba, Bright Kusema, Elena Murzina, Anton Tokarev, Narendra Kumar, Annika Smeds, Eva Díaz, Salvador Ordóñez, Päivi Mäki-Arvela, Stefan Willför, Tapio Salmi, Dmitry Murzin

    Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

    31 Citeringar (Scopus)

    Sammanfattning

    The hydrolytic hydrogenation of hemicellulose arabinogalactan using different beta zeolites as catalysts was studied in this work. The use of bifunctional Ru/beta zeolite catalysts leads to formation of valuable polyols (galactitol, arabitol) from hemicellulose. The presence of acid sites enhances hydrolysis of the hemicelluloses into sugars in addition to homogeneous hydrolysis while the Ru catalyzes further hydrogenation into polyols. Using bifunctional catalysts the stability of these polyols can be also enhanced because the side reactions to HMF and furfural were minimized, however formation of high molecular weight compounds (aggregates of sugars and humins) was still quite substantial.
    OriginalspråkOdefinierat/okänt
    Sidor (från-till)189–199
    Antal sidor11
    TidskriftMicroporous and Mesoporous Materials
    Volym189
    DOI
    StatusPublicerad - 2014
    MoE-publikationstypA1 Tidskriftsartikel-refererad

    Nyckelord

    • Arabinogalactan
    • Beta zeolites
    • Bifunctional catalysis
    • Biomass upgrading
    • Hydrolysis

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