Fast Disassembly of Lignocellulosic Biomass to Lignin and Sugars by Molten Salt Hydrate at Low Temperature for Overall Biorefinery

ACS Omega
Zhihao BiLifeng Yan

Abstract

Lignocellulose is a complex of cellulose, hemicellulose, and lignin, whose overall conversion is still a challenge, especially by a fast and efficient method. Here, a very simple method has been developed using acidic molten salt of zinc chloride hydrate as the solvent and catalyst for complete disassembly of lignocellulose at 95 °C and atmospheric pressure in 12 min. The major products are lignin and monosaccharides, such as glucose and xylose. It was found that high-purity lignin in yield of about 20 wt % can be obtained with various biomass, and the maximum yield of glucose from bamboo is 40.56 wt % and that of xylose from wheat straw is 16.82 wt %. Importantly, zinc chloride can be recovered through precipitation by ammonia and reused for next cycles. It provides a simple route to separate and efficiently convert lignocellulose, especially high-grade feedstock for biorefinery.

References

Jan 14, 2011·Trends in Plant Science·Qiao Zhao, Richard A Dixon
May 17, 2011·Journal of Agricultural and Food Chemistry·Tong-Qi YuanRun-Cang Sun
Feb 12, 2013·Chemical Reviews·Robert-Jan van PuttenJohannes G de Vries
Oct 8, 2014·Journal of Agricultural and Food Chemistry·Konstantin GabovPedro Fardim
Jan 24, 2016·The Journal of Physical Chemistry. B·Sanghamitra SenJames D Martin

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BETA
NMR
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scanning

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Topspin
- NMR
Bruker

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