Acid-catalyzed mechanocatalytic pretreatment to improve sugar release from birch sawdust : Structural and chemical aspects
Lempiäinen, H., Lappalainen, K., Mikola, M., Tuuttila, T., Hu, T., & Lassi, U. (2021). Acid-catalyzed mechanocatalytic pretreatment to improve sugar release from birch sawdust : Structural and chemical aspects. Catalysis Today, In Press. https://doi.org/10.1016/j.cattod.2021.06.015
Published inCatalysis Today
Hu, Tao |
Embargoed until: 2023-07-08Request copy from author
© 2021 Elsevier
This study examined acid-catalyzed mechanocatalytic pretreatment of birch sawdust without a separate impregnation step. Catalyst amount and pretreatment time were the key variables. Pretreated material was mixed with water for hydrolysis (100 °C, 60 min). The efficient release of total reducing sugars from birch sawdust is significant to the path towards biofuels and biochemicals. Based on the results, the structure and surface of birch sawdust changed as a function of mechanocatalytic pretreatment. Milling time caused significant transformations in birch structure and also increased the yields of reducing sugars. The highest yield of total reducing sugar from pretreated sawdust was 23.0% after 30 min of hydrolysis with 1.0 mmol/g acid catalyst, whereas the highest glucose yield was 23.8 g/kg (1.5 mmol/g catalyst, 60 min) and the highest xylose yield was 37.5 g/kg (1.0 mmol/catalyst, 30 min). Overall, acid-catalyzed mechanocatalytic treatment seems to improve sugar yields from birch.
Publication in research information system
MetadataShow full item record
Related funder(s)European Commission; Regional Council of Central Ostrobothnia
Funding program(s)Interreg Programmes; ERDF European Regional Development Fund, React-EU
The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Additional information about fundingThis work was supported by the Biomass Value Chains project (A71029, the EU/European Regional Development Fund, Leverage from the EU program), the Forest Refine project (Interreg Botnia-Atlantica), the Bioraff Botnia project (20200327, Interreg Botnia-Atlantica), and the Support Association of the Chydenius Institute.
Showing items with similar title or keywords.
Lempiäinen, Henna; Lappalainen, Katja; Haverinen, Jasmiina; Tuuttila, Tero; Hu, Tao; Jaakkola, Mari; Lassi, Ulla (MDPI, 2020)In this study, the effect of a mechanocatalytic pretreatment on the structure of willow and sugar release from pretreated willow was explored. In the mechanocatalytic approach, the pretreatment consists of solvent-free ...
Lignin-based activated carbon-supported metal oxide catalysts in lactic acid production from glucose Kupila, Riikka; Lappalainen, Katja; Hu, Tao; Romar, Henrik; Lassi, Ulla (Elsevier, 2021)In this study, heterogeneous biomass-based activated carbon-supported metal oxide catalysts were prepared and tested for lactic acid production from glucose in aqueous solution. Activated carbons were produced from hydrolysis ...
Production of ethyl lactate by activated carbon-supported Sn and Zn oxide catalysts utilizing lignocellulosic side streams Kupila, Riikka; Lappalainen, Katja; Hu, Tao; Heponiemi, Anne; Bergna, Davide; Lassi, Ulla (Elsevier, 2021)In this study, activated carbon-supported Sn and Zn oxide catalysts were prepared from hydrolysis lignin and used for the conversion of model solutions of trioses, hexoses, and lignocellulosic biomass hydrolysates to ethyl ...
Lappalainen, Katja; Kuorikoski, Eveliina; Vanvyve, Elise; Dong, Yue; Kärkkäinen, Johanna; Niemelä, Matti; Lassi, Ulla (Department of Forest Biomaterials, North Carolina State University, 2019)Enormous amounts of fiber sludge are generated annually by the pulp industry as a by-product. As a cellulose-rich material, its current usage, mainly as fuel, is inefficient from a material efficiency point of view. This ...
Study of Ni, Pt, and Ru Catalysts on Wood-based Activated Carbon Supports and their Activity in Furfural Conversion to 2-Methylfuran Mäkelä, Eveliina; Lahti, Riikka; Jaatinen, Salla; Romar, Henrik; Hu, Tao; Puurunen, Riikka L.; Lassi, Ulla; Karinen, Reetta (Wiley-VCH, 2018)Bio‐based chemicals can be produced from furfural through hydrotreatment. In this study, 2‐methylfuran (MF), a potential biofuel component, was produced with Pt, Ru, and Ni catalysts supported on wood‐based activated ...