Efficient Hydroliquefaction of Sawdust over a Novel Silica-Supported Monoclinic Molybdenum Dioxide Catalyst

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• 作者：Min Li ; Dong Liu ; Ping-Ping Wu ; Xing-Shun Cong ; Lin-Hua Song ; Qing-Tai Chen ; Jing Liu ; Hao Wu ; Zi-Feng Yan
• 刊名：Energy & Fuels
• 出版年：2016
• 出版时间：August 18, 2016
• 年：2016
• 卷：30
• 期：8
• 页码：6495-6499
• 全文大小：404K
• 年卷期：0
• ISSN：1520-5029

文摘

A novel synthesis method was developed to prepare a silica-supported monoclinic molybdenum dioxide (MoO₂/SiO₂) catalyst via calcination of molybdenum disulfide (MoS₂)/SiO₂ in N₂ flow with 0.1 vol % O₂. MoO₂/SiO₂ was employed as a catalyst for sawdust hydroliquefaction in ethanol at 320 °C under an initial H₂ pressure (IHP) of 2–6 MPa, and the bio-oil yield as high as 72.3% was obtained under an IHP of 6 MPa. The high catalytic activity of MoO₂/SiO₂ should be attributed to the efficient cleavage of H₂ on the surface of highly dispersed MoO₂, which shows an unusual metallic characteristic. The obtained bio-oil was analyzed with gas chromatography/mass spectrometry (GC/MS), and the main organic compounds detected by GC/MS were phenolics and ethyl esters.