A synergistic biorefinery based on catalytic conversion of lignin prior to cellulose starting from lignocellulosic biomass [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 668.5 Perfumes and cosmetics
• Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Science ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2014
• Mô tả vật lý: Size: p. 1492-1499 : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 263724
• Chủ đề: 1. 09 biomass fuels; 2. Biofuels (including algae and biomass); 3. Bio-inspired; 4. Catalysis (heterogeneous); 5. Catalysis (homogeneous)

Tóm tắt

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. In this work 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.