Xu Gang, Wang Aiqin, Pang Jifeng, Zhao Xiaochen, Xu Jinming, Lei Nian, Wang Jia, Zheng Mingyuan, Yin Jianzhong, Zhang Tao
State Key Laboratory of Catalysis, iChEM, Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China.
State Key Laboratory of Fine Chemicals, School of Chemical Machinery, Dalian University of Technology, Dalian, 116024, P. R. China.
ChemSusChem. 2017 Apr 10;10(7):1390-1394. doi: 10.1002/cssc.201601714. Epub 2017 Mar 20.
Production of chemicals and fuels from renewable cellulosic biomass is important for the creation of a sustainable society, and it critically relies on the development of new and efficient transformation routes starting from cellulose. Here, a chemocatalytic conversion route from cellulosic biomass to methyl glycolate (MG), ethylene glycol (EG), and ethanol (EtOH) is reported. By using a tungsten-based catalyst, cellulose is converted into MG with a yield as high as 57.7 C % in a one-pot reaction in methanol at 240 °C and 1 MPa O , and the obtained MG can be easily separated by distillation. Afterwards, it can be nearly quantitatively converted to EG at 200 °C and to EtOH at 280 °C with a selectivity of 50 % through hydrogenation over a Cu/SiO catalyst. By this approach, the fine chemical MG, the bulk chemical EG, and the fuel additive EtOH can all be efficiently produced from renewable cellulosic materials, thus providing a new pathway towards mitigating the dependence on fossil resources.
从可再生纤维素生物质生产化学品和燃料对于创建可持续社会至关重要，并且它严重依赖于从纤维素开始开发新的高效转化路线。在此，报道了一种从纤维素生物质到乙醇酸甲酯（MG）、乙二醇（EG）和乙醇（EtOH）的化学催化转化路线。通过使用钨基催化剂，纤维素在240℃和1MPa O₂的甲醇中一锅反应中转化为MG，产率高达57.7 C%，并且所得到的MG可以通过蒸馏轻松分离。之后，通过在Cu/SiO催化剂上进行氢化反应，它可以在200℃几乎定量地转化为EG，并在280℃以50%的选择性转化为EtOH。通过这种方法，可以从可再生纤维素材料高效生产精细化学品MG、大宗化学品EG和燃料添加剂EtOH，从而为减轻对化石资源的依赖提供了一条新途径。
