期刊
GREEN CHEMISTRY
卷 17, 期 3, 页码 1492-1499出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4gc01911c
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资金
- Center for Direct Catalytic Conversion of Biomass to Biofuels (C3Bio), an Energy Frontier Research Center (EFRC) - U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0000997]
- National Science Foundation Emerging Frontiers in Research and Innovation (EFRI) [0938033]
- National Science Foundation Graduate Research Fellowship Program [DGE-1333468]
Current biomass utilization processes do not make use of lignin beyond its heat value. Here we report on a bimetallic Zn/Pd/C catalyst that converts lignin in intact lignocellulosic biomass directly into two methoxyphenol products, leaving behind the carbohydrates as a solid residue. Genetically modified poplar enhanced in syringyl (S) monomer content yields only a single product, dihydroeugenol. Lignin-derived methoxyphenols can be deoxygenated further to propylcyclohexane. The leftover carbohydrate residue is hydrolyzed by cellulases to give glucose in 95% yield, which is comparable to lignin-free cellulose (solka floc). New conversion pathways to useful fuels and chemicals are proposed based on the efficient conversion of lignin into intact hydrocarbons.
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