碳化物类生物油加氢脱氧催化剂的研究进展

简述了加氢脱氧反应机理,重点综述了碳化物催化剂在生物油加氢脱氧反应中的研究进展。研究发现不同载体负载的碳化物催化剂的催化效果不同,酸性较强的氧化铝载体容易导致催化剂积碳失活,不适合工业化生产;活性炭载体的酸性虽弱于氧化铝载体不易产生积碳,但随着负载量的增大,载体孔道会发生堵塞。碳纳米材料虽易发生团聚,但具备比表面积大和化学稳定性佳的特点,因此,以其为载体制备的碳化物催化剂是目前最具发展潜力的生物油加氢脱氧催化剂。

RESEARCH PROGRESS OF CARBIDE CATALYSTS FOR HYDRODEOXYGENATIONOFBIO-OILS

The mechanism of hydrodeoxygenation reaction was briefly described.The research progress of carbide catalysts for the hydrodeoxygenation of bio-oil was reviewed.It is found that the catalytic effect of different carrier-supported carbide catalysts is different.The acidic alumina carrier tends to cause catalyst carbon deactivation and is not suitable for industrial production.The activated carbon support is less prone to carbon deposition because acidic is weaker than the alumina support,but with the increase of the load,the support pores will beclogged.Although carbon nanomaterials are prone to agglomeration,they have the characteristics of large specific surface area and good chemical stability.Therefore,the carbide catalyst prepared by the support is the most promising bio-oil hydrodeoxygenation catalyst.