固体催化剂下生物油模型化合物的催化加氢研究

Research on solid catalysts base hydrogenation for bio-oil model compounds

采用生物油模型化合物可以简化因生物油成分复杂而给加氢研究带来的困难。配制合理的生物油模型化合物,采用2种固体催化剂CoMo/TiO2和NiMo/TiO2,研究了加氢温度(100～300℃)、氢气压力(0.5～2.5MPa)、反应时间(1～4 h)和催化剂类型对不同组分模型化合物加氢过程的影响,得出试验中模型化合物的最佳加氢工况:反应温度为250℃,冷氢气压力为1.5 MPa,反应时间为2 h。NiMo/TiO2的催化活性略高于CoMo/TiO2。

Bio-oil model compounds can simplify the difficulties in bio-oil hydrogenation research caused by its complex compositions. In this paper, reasonable bio-oil model compounds were prepared, by using＇two kinds of solid catalysts CoMo/TiO2 and NiMo/TiO2, the effects of reaction tem- perature （100-300 ℃ ）, hydrogen pressure （0.5-2.5 MPa）, reaction time （1-4 h） and catalyst type on the hydrogenation process of different compounds in bio-oil model compounds had been investigated. The best model compounds hydrogenation condition in this experiment was： reaction tem- perature 250 ℃, cold hydrogen pressure 1.5 MPa, reaction time 2 h. NiMo/TiO2＇s catalytic activity was a littie better than CoMo/TiO2＇s.