左旋葡糖
半纤维素
生物量(生态学)
木质素
纤维素
热解
化学
过氧化氢
分解
催化作用
产量(工程)
原材料
有机化学
制浆造纸工业
农学
材料科学
气溶胶
生物质燃烧
生物
工程类
冶金
作者
Yang Heng,L. Xue,Shasha Li,Guiying Lin,Xiaofeng Guo,Ziyang Wang,Kuan Ding,Yong Huang,Shu Zhang
标识
DOI:10.1016/j.biortech.2024.130667
摘要
Due to the complexity of biomass structures, the conversion of raw biomass into value-added chemicals is challenging and often requires efficient pretreatment of the biomass. In this paper, a simple and green pre-oxidation method, which was conducted under the conditions of 2 wt% H2O2, 80 min, and 150 °C, was reported to significantly increase the production of levoglucosan (LG) from biomass pyrolysis. The result showed that the LG yield significantly increased from 2.3 wt% (without pre-oxidation) to 23.1 wt% when pine wood was employed as a sample for pyrolysis at 400 °C, resulting from the removal of hemicellulose fraction and the in-situ acid catalysis of lignin carboxyl groups formed during the pre-oxidation. When the conditions for pre-oxidation became harsher than the above, the LG yield reduced because the decomposition of cellulose fraction in biomass. The study supplies an effective method for utilization of biomass as chemicals.
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