Highly efficient conversion of sunflower stalk-hydrolysate to furfural by sunflower stalk residue-derived carbonaceous solid acid in deep eutectic solvent/organic solvent system

被引：57
作者：
Gong, Lei [1 ]
Zha, Jingjian [1 ]
Pan, Lei [2 ]
Ma, Cuiluan [2 ]
He, Yu-Cai [1 ,2 ]
机构：
[1] Changzhou Univ, Natl Local Joint Engn Res Ctr Biomass Refining &, Jiangsu Key Lab Adv Catalyt Mat & Technol, Sch Pharm, Changzhou, Jiangsu, Peoples R China
[2] Hubei Univ, Sch Life Sci, Hubei Key Lab Ind Biotechnol, State Key Lab Biocatalysis & Enzyme Engn,Hubei Co, Wuhan, Peoples R China
来源：
BIORESOURCE TECHNOLOGY | 2022年 / 351卷
基金：
中国国家自然科学基金;
关键词：
Sunflower stalk; Carbonaceous solid acid; Biphasic system; Furfural; Co-catalysis; ENZYMATIC-HYDROLYSIS; CATALYTIC CONVERSION; CORN STALK; XYLOSE; DEHYDRATION; PRETREATMENT; KINETICS; BIOMASS; STRAW;
D O I：
10.1016/j.biortech.2022.126945
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Sunflower stalk was utilized as a source of raw material and catalyst for furfural production, and efficient conversion of xylose-rich hydrolysate into furfural was developed in an aqueous deep eutectic solvent/organic solvent medium by carbonaceous solid acid catalyst SO42-/SnO2-SSXR. The structural characteristics of SO42-/SnO2-SSXR was characterized by Brunauer-Emmett-Teller (BET), Scanning Electron Microscopy (SEM), Fouriertransform Infrared Spectroscopy (FT-IR), X-ray Diffraction (XRD), Pyridine Adsorption Fourier-transform Infrared (Py-IR) and Raman. Under the optimum catalytic conditions, furfural (110.1 mM) yield reached 82.6% in a ChCl-MAA/toluene medium at 180 degrees C in 15 min by 3.6 wt% SO42-/SnO2-SSXR. Additionally, quite importantly, SO42-/SnO2-SSXR, ChCl-MAA and toluene had good recyclability for furfural production. The potential catalytic path of xylose dehydration into furfural was proposed by co-catalysis with SO42-/SnO2-SSXR and ChCl-MAA. This study revealed high potential sustainable application of furfural production.
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页数：8
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