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

    Research output: Contribution to journalArticleScientificpeer-review

    31 Citations (Scopus)

    Abstract

    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.
    Original languageUndefined/Unknown
    Pages (from-to)189–199
    Number of pages11
    JournalMicroporous and Mesoporous Materials
    Volume189
    DOIs
    Publication statusPublished - 2014
    MoE publication typeA1 Journal article-refereed

    Keywords

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

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