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论文类型：期刊论文

发表时间：2017-04-10

发表刊物：CHEMSUSCHEM

收录刊物：SCIE、EI、PubMed

卷号：10

期号：7

页面范围：1390-1394

ISSN号：1864-5631

关键字：biomass; ethanol; ethylene glycol; methyl glycolate; supported catalysts

摘要：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 57.7C% in a one-pot reaction in methanol at 240 degrees C and 1MPa O-2, and the obtained MG can be easily separated by distillation. Afterwards, it can be nearly quantitatively converted to EG at 200 degrees C and to EtOH at 280 degrees C with a selectivity of 50% through hydrogenation over a Cu/SiO2 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.