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富镍双金属催化剂的制备及其对复合藻基原料共水热催化性能研究
Preparation of Nickel-rich Bimetallic Catalysts and Their Co-hydrothermal Catalytic Performance on Composite Algae-based Feedstocks
【摘要】 该文开展了大藻与微藻共水热催化制备生物油研究,考察了Ni-Mo/MCM-41和Ni-W/MCM-41催化剂对生物油产率和组分分布的作用特性。结果表明,双金属催化剂会降低复合藻基原料水热生物油的产率,但发挥了一定的加氢脱氮效果,提高了油相产物中烃类物质含量(最多提高33.04%),并降低了含氮化合物含量(最多降低38.88%)和氧含量,有效改善了生物油的品质。此外,采用扫描电镜、X射线衍射、X射线光电子能谱和氨气吸脱附研究了Ni-Mo/MCM-41和Ni-W/MCM-41催化剂的物理化学性质。
【Abstract】 The paper carried out a study on the co-hydrothermal catalytic preparation of bio-oil from macroalgae and microalgae, and investigated the action characteristics of Ni-Mo/MCM-41 and Ni-W/MCM-41 catalysts on the bio-oil yield and component distribution. The results showed that the bimetallic catalysts reduced the yield of hydrothermal bio-oil from the composite algae-based feedstock, but exerted a certain effect of hydrodenitrogenation, increased the hydrocarbon content(up to 33.04%) and reduced the content of nitrogenous compounds(up to 38.88%) and oxygen content in the oil phase product, effectively improving the quality of the bio-oil. In addition, the physicochemical properties of the Ni-Mo/MCM-41 and Ni-W/MCM-41 catalysts were studied using scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and ammonia adsorption and desorption.
【Key words】 bio-oil; bimetallic catalyst; co-hydrothermal liquefaction; MCM-41;
- 【文献出处】 工程热物理学报 ,Journal of Engineering Thermophysics , 编辑部邮箱 ,2024年02期
- 【分类号】O643.36;TE667
- 【下载频次】41