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Preparation of sulfonated carbonaceous solid acid catalysts by fuming sulfuric acid from different lignocellulosic sources and application for the conversion of Acacia mangium wood sawdust-derived glucose and fructose into levulinic acid

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Abstract

Four types of high-acidity carbon-based solid acid catalysts (CBSCs) were successfully synthesized from wood sawdust, sugarcane bagasse, coconut shell, and wood sawdust-derived lignin using fuming sulfuric acid (FSA) as the sulfonating agent. The synthesized CBSCs were successfully applied to the conversion of wood sawdust-derived glucose and fructose into levulinic acid. The findings show that FSA can provide the CBSCs with higher acidity (8.0–13.0 mmol/g) than conventional concentrated sulfuric acid. Under the suitable conditions established in this work, levulinic acid was formed with a yield of more than 50 wt% over glucose when using the synthesized CBSCs at a dosage of 30 wt% over the amount of sugar.

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Acknowledgements

The authors would like to thank the Hanoi University of Science and Technology (HUST) for financially supporting this work under project number T2022-PC-071.

Funding

This research is funded by the Hanoi University of Science and Technology (HUST) under project number T2022-PC-071.

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Material preparation and data collection were performed by NTH and TTT. PHH was responsible for analyzing data and providing comments on the manuscript. The manuscript was written by NHC and LQD. All authors read and approved the final manuscript.

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Correspondence to Nguyen Hoang Chung.

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Hue, N.T., Thanh, T.T., Chung, N.H. et al. Preparation of sulfonated carbonaceous solid acid catalysts by fuming sulfuric acid from different lignocellulosic sources and application for the conversion of Acacia mangium wood sawdust-derived glucose and fructose into levulinic acid. Eur. J. Wood Prod. 82, 529–539 (2024). https://doi.org/10.1007/s00107-023-02017-3

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  • DOI: https://doi.org/10.1007/s00107-023-02017-3

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