Integrated lignocellulosic biorefinery for efficient production of furans and photothermal materials

Liu, Chao and Wang, Kui and Zhao, Xinpeng and Chen, Zhijun and Yin, Xiaoyan and Cai, Tingting and Zhang, Xiaolei and Xu, Junming and Hu, Jun and Meng, Xianzhi and Ragauskas, Arthur J. and Jiang, Jianchun (2023) Integrated lignocellulosic biorefinery for efficient production of furans and photothermal materials. Chemical Engineering Journal, 453 (Part 1). 139688. ISSN 1385-8947 (https://doi.org/10.1016/j.cej.2022.139688)

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Abstract

Integrated lignocellulosic biorefineries offer a great potential to valorize all the components in lignocellulose into products, including fuels, chemicals, and materials. However, because of lignocellulose recalcitrance, conversion of bioresources remains a techno-economic challenge for many lignocellulosic biorefineries. In this work, we have proposed a sustainable and profitable biorefinery strategy for lignocellulose fractionation and conversion. In this design, a biphasic solvent consisting of a molten salt hydrate LiCl·4H2O and γ-valerolactone (GVL) was initially used for separating hemicellulose from lignocellulose. More interestingly, 100 wt% of biorefinery products from lignin were directly converted to functional photothermal materials by coordinating with Fe3+ for solar-thermal-electricity conversion. Attributed to this rational design, the techno-economic analysis predicts a revenue of 439.3 USD by processing 100 kg of lignocellulosic biomass using the above developed method.

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