首页|Selective hydrodeoxygenation of guaiacol to cyclohexanol using activated hydrochar-supported Ru catalysts

Selective hydrodeoxygenation of guaiacol to cyclohexanol using activated hydrochar-supported Ru catalysts

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Lignin,an abundant aromatic polymer in nature,has received significant attention for its potential in the production of bio-oils and chemicals owing to increased resource availability and environmental issues.The hydrodeoxygenation of guaiacol,a lignin-derived monomer,can produce cyclohexanol,a nylon precursor,in a carbon-negative and environmentally friendly manner.This study explored the porous properties and the effects of activation methods on the Ru-based catalyst supported by environmentally friendly and cost-effective hydrochar.Highly selective cleavage of Carl-O bonds was achieved under mild conditions(160 ℃,0.2 MPa H2,and 4 h),and alkali activation further improved the catalytic activity.Various characterization methods revealed that hydrothermal treatment and alkali activation relatively contributed to the excellent performance of the catalysts and influenced their porous structure and Ru dispersion.X-ray photoelectron spectroscopy results revealed an increased formation of metallic ruthenium,indicating the effective regulation of interaction between active sites and supports.This synergistic approach used in this study,involving the valorization of cellulose-derived hydrochar and the selective production of nylon precursors from lignin-derived guaiacol,indicated the comprehensive and sustainable utilization of biomass resources.

hydrocharguaiacolcyclohexanolactivationfull-component utilization

Kaile Li、Shijie Yu、Qinghai Li、Yanguo Zhang、Hui Zhou

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Key Laboratory for Thermal Science and Power Engineering of Ministry of Education,Beijing Key Laboratory of CO2 Utilization and Reduction Technology,Department of Energy and Power Engineering,Tsinghua University,Beijing 100084,China

Department of Chemical and Biomolecular Engineering,National University of Singapore,Singapore,117585,Singapore

国家自然科学基金国家重点研发计划Tsinghua University-Shanxi Clean Energy Research Institute Innovation Project Seed FundHuaneng Group Science and Technology Research ProjectInternational Joint Mission On Climate Change and Carbon Neutrality,Tsinghua-Toyota Joint Research FundState Key Laboratory of Chemical Engineering

522762022020YFC1910100KTHT-U22YYJC12SKL-ChE-22A03

2024

10.1007/s11705-024-2409-1

化学科学与工程前沿
高等教育出版社

化学科学与工程前沿

CSTPCDEI
影响因子：0.172
ISSN：2095-0179
年,卷(期)：2024.18(5)
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