Tailoring ZSM-5 Zeolites for the Fast Pyrolysis of Biomass to Aromatic Hydrocarbons

Thomas C. Hoff, David W. Gardner, Rajeeva Thilakaratne, Kaige Wang, Thomas Willum Hansen, Robert C. Brown, Jean Philippe Tessonnier

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    Abstract

    The production of aromatic hydrocarbons from cellulose by zeolite-catalyzed fast pyrolysis involves a complex reaction network sensitive to the zeolite structure, crystallinity, elemental composition, porosity, and acidity. The interplay of these parameters under the reaction conditions represents a major roadblock that has hampered significant improvement in catalyst design for over a decade. Here, we studied commercial and laboratory-synthesized ZSM-5 zeolites and combined data from 10 complementary characterization techniques in an attempt to identify parameters common to high-performance catalysts. Crystallinity and framework aluminum site accessibility were found to be critical to achieve high aromatic yields. These findings enabled us to synthesize a ZSM-5 catalyst with enhanced activity, which offers the highest aromatic hydrocarbon yield reported to date.
    Original languageEnglish
    JournalChemSusChem (Print)
    Volume9
    Issue number12
    Pages (from-to)1473-1482
    ISSN1864-5631
    DOIs
    Publication statusPublished - 2016

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