Green and efficient utilization of beech sawdust waste for sorbitol production: Direct conversion residue via Ru2P/OMC derived from separated lignin
Green and efficient utilization of beech sawdust waste for sorbitol production: Direct conversion residue via Ru2P/OMC derived from separated lignin
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DOI：
10.1016/j.cej.2023.147093
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发表时间：
2023-12
影响因子：
15.1
通讯作者：
Longxin Liu;Mo Qiu;Huili Zhang;Jingnan Yang;Feng Shen;Haixin Guo;Jirui Yang;Qingxin Guan;Wei Li
中科院分区：
文献类型：
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作者：
Longxin Liu;Mo Qiu;Huili Zhang;Jingnan Yang;Feng Shen;Haixin Guo;Jirui Yang;Qingxin Guan;Wei Li
本文提出了一种绿色和可持续的策略，以实现有效利用榉木木屑废物生产山梨醇。首先，采用乙醇溶解法从木屑中提取木质素。随后，利用溶剂蒸发诱导自组装（EISA）方法，将木质素与间苯三酚结合制备有序介孔碳（OMC）。然后，合成了Ru 2 P/OMC催化剂，并将其用于以纯水为绿色溶剂，由残渣制备山梨醇的反应中。在200 °C下反应5 h，山梨糖醇和木糖醇的收率分别达到77.2%和12.5%。不同的表征技术被用来揭示催化剂的结构组成和反应机理。结果表明，双功能Ru 2 P/OMC催化剂不经磺化处理，具有水解和加氢的双重活性。有趣的是，双功能Ru 2 P/OMC催化剂具有令人满意的活性，选择性和稳定性，这是有前途的生物质废物转化。
This paper proposes a green and sustainable strategy to achieve efficient utilization of beech sawdust waste to produce sorbitol. First, ethanol dissolution method was used to extract lignin from sawdust. Subsequently, the lignin combined with phloroglucinol were used to fabricate ordered mesoporous carbon (OMC) using solvent evaporation induced self-assembly (EISA) method. Afterwards, Ru2P/OMC was synthesized and utilized as a catalyst for the production of sorbitol from the residue using pure water as green solvent. Finally, the yield of sorbitol and xylitol reached 77.2 % and 12.5 % at 200 °C in 5 h, respectively. Different characterization techniques were used to reveal the structural composition of the catalysts and the mechanism of the reaction. The results show that the bifunctional Ru2P/OMC catalyst has dual activity of hydrolysis and hydrogenation without sulfonation treatments. Interestingly, the bifunctional Ru2P/OMC catalyst has satisfactory activity, selectivity, and stability, which is promising in biomass waste conversion.