Hydrotreatment of Fast Pyrolysis Oil Using Heterogeneous Noble-Metal Catalysts
Hydrotreatment of Fast Pyrolysis Oil Using Heterogeneous Noble-Metal Catalysts
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DOI：
10.1021/ie9006003
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发表时间：
2009-12
影响因子：
4.2
通讯作者：
J. Wildschut;F. Mahfud;R. Venderbosch;H. J. Heeres
中科院分区：
文献类型：
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作者：
J. Wildschut;F. Mahfud;R. Venderbosch;H. J. Heeres
木质纤维素生物质快速热解油是很有前途的第二代生物燃料。不幸的是，由于高酸度（pH ≤ 2.5）和在各种化学官能团中存在氧，这种油的应用范围受到限制，并且对于大多数应用来说需要对油进行升级。本文报道了快速裂解油催化加氢改质的实验研究。为此目的，测试了多种非均相贵金属催化剂（Ru/C、Ru/TiO 2、Ru/Al 2 O3、Pt/C和Pd/C），并将结果与用典型加氢处理催化剂（硫化的NiMo/Al 2 O3和CoMo/Al 2 O3）获得的结果进行了比较。反应在250和350 °C的温度和100和200巴的压力下进行。发现Ru/C催化剂在油收率（高达60重量%）和脱氧水平（高达90重量%）方面上级经典加氢处理催化剂。升级后的产品比原来的酸性更小，含水量更少。
Fast pyrolysis oils from lignocellulosic biomass are promising second-generation biofuels. Unfortunately, the application range for such oils is limited because of the high acidity (pH∼2.5) and the presence of oxygen in a variety of chemical functionalities, and upgrading of the oils is required for most applications. Herein, we report an experimental study on the upgrading of fast pyrolysis oil by catalytic hydrotreatment. A variety of heterogeneous noble-metal catalysts were tested for this purpose (Ru/C, Ru/TiO2, Ru/Al2O3, Pt/C, and Pd/C), and the results were compared to those obtained with typical hydrotreatment catalysts (sulfided NiMo/Al2O3 and CoMo/Al2O3). The reactions were carried out at temperatures of 250 and 350 °C and pressures of 100 and 200 bar. The Ru/C catalyst was found to be superior to the classical hydrotreating catalysts with respect to oil yield (up to 60 wt %) and deoxygenation level (up to 90 wt %). The upgraded products were less acidic and contained less water than the original...