Preparation of Nickel-rich Bimetallic Catalysts and Their Co-hydrothermal Catalytic Performance on Composite Algae-based Feedstocks
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.
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