期刊
SUSTAINABLE ENERGY & FUELS
卷 5, 期 23, 页码 6097-6106出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1se01403j
关键词
-
资金
- National Key Technology R&D Program of China [2018YFB1501601]
- Guangdong Special Support Program [2017TX04N371]
Utilizing a lignin-first strategy, the hydrogenolysis of cornstalk lignin in supercritical ethanol was investigated with a focus on the effects of metal and acid sites. The acid pretreatment of Ru/C catalysts significantly improved the hydrogenolysis process, with Ru/C-acid (10) achieving the highest monomer yield of 42.9 wt%. Characterizations of catalysts and products demonstrated the importance of active metal and acid sites for efficient lignin hydrogenolysis.
A lignin-first strategy is promising in lignin utilization to produce value-added aromatic compounds and their derivatives for achieving high efficiency. In this work, we explored the hydrogenolysis of cornstalk lignin in supercritical ethanol and investigated the effects of metal sites and acid sites during lignin-first fractionation. By comparison, the acid pretreatment of Ru/C catalysts significantly promotes the hydrogenolysis process, wherein Ru/C-acid (10) exhibits the best result with 42.9 wt% yield of monomer products (including aromatic monomers and hydrogenated monomers) at 260 degrees C, 3 MPa H-2 for 4 h. Catalysts were measured by BET, TEM and NH3-TPD characterizations, and the hydrogenolysis products were compared by GC-MS, GPC, element analysis and FT-IR characterizations. The analysis results indicate that the active metal site and the abundant acid site are mainly responsible for the efficient lignin hydrogenolysis performance, and these two factors present a significant effect to achieve a high monomer yield.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据