期刊
BIORESOURCE TECHNOLOGY
卷 273, 期 -, 页码 687-691出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2018.11.011
关键词
Biomass; Mechanochemical; Glucose; Solid acid catalyst; Cellulose
资金
- Natural Science Fund for Distinguished Young Scholars of Tianjin [17JCJQJC45500]
- National Natural Science Foundation of China (NSFC) [21577073, 21876091]
- Natural Science Foundation of Tianjin [16JCZDJC33700]
In this work, carbonaceous materials bearing only weakly acidic -COOH and phenolic -OH groups were directly prepared by the pyrolysis of lignin and KOH in black liquor generating from rice straw that was pretreated with KOH aqueous solution. The synthesized carbon materials were used for the hydrolysis of cellulose or the alkali pretreated rice straw in water, after mixed ball-milling pretreatment, and provided a high glucose yield of 76.3% for cellulose, high yields of 52.1% glucose and 66.5% xylose for alkali pretreated rice straw, respectively, in 0.015 wt% HCl aqueous solution at 200 degrees C for 60 min. The weakly acidic catalyst showed good stability and recyclability in the aqueous reaction system. This work provides an efficient process for the hydrolysis of lignocellulose by biomass-derived weakly acidic catalysts in water and should have wide applications in biomass utilization.
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