Enhanced valorization of hemp stalk via chemo-catalytic and hydrothermal conversions

文献类型： 外文期刊

第一作者： Tao, Zhenhan

作者： Tao, Zhenhan;Wang, Yantao;Yang, Weiran;Zhu, Aiguo;Len, Christophe;Len, Christophe;Duan, Yaqi

作者机构：

关键词： Hemp stalk; Furfural; 5-Methylfurfural; Bio-oil; Hydrochar; Biomass valorization

期刊名称：FUEL （ 影响因子：8.035； 五年影响因子：7.621 ）

ISSN： 0016-2361

年卷期： 2022 年 327 卷

页码：

收录情况： SCI

摘要： The integration and cascade utilization of the entire lignocellulosic biomass components to obtain high value-added chemicals or fuels are of high interest. Herein, a strategy combined the chemo-catalytic and hydrother-mal liquification processes was developed for the conversion of raw biomass into high value-added furanic compounds and fuels. Firstly, optimal 58% yield of furfural and 40% yield of 5-methylfurfural were co-produced from hemicellulose and cellulose components of hemp stalk powder (HSP) using formic acid and NaI as the catalysts. Then, the lignin-rich solid residue left after chemo-catalytic process, can be simply converted into bio-oil and hydrochar via hydrothermal liquefaction with a high energy recovery efficiency (88%). Elemental analysis of the bio-oils and hydrochars, as well as the adsorbing capacity of the hydrochars were also investigated and discussed. The pioneering study on simultaneously production of furfural and 5-methylfurfural, as well as the cascade valorization strategy using a green, simple and efficient way may unwrap a new direction for the entire biomass utilization.

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