Porosity-Acidity Interplay in Hierarchical ZSM-5 Zeolites for Pyrolysis Oil Valorization to Aromatics...

摘要

The growing importance of bio-refineries as alternate sources of replacements for petroleum products depends heavily on the nature of the reaction conditions and the catalyst systems employed. Pyrolysis has long held the promise of being a straightforward technique for converting biomass feedstock, regardless of type, to desired products or intermediates. However, the product mix obtained is typically highly oxygenated -- thus rendering it of marginal use as a source of higher octane fuels. Herein, the authors demonstrate an efficient process concept which couples the production of pyrolysis oil from pine wood with a consecutive catalytic upgrading step using hierarchically structured ZSM-5 zeolites to attain aromatic-rich bio-oils (Scheme 1).