Advances in Catalysts Applied to Bio-diesel Production from Oil Hydrotreatment
WANG Fei1, XU Junming1,2, JIANG Jianchun1,2, LIU Peng1, ZHOU Minghao1, WANG Kui1
1 Key Laboratory of Biomass Energy Sources and Materials, Key and Open Laboratory of Forest Chemical Engineering of SFA, National Engineering Laboratory for Biomass Chemical Utilization, Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing 210042; 2 Jiangsu Qianglin Biomass Energy Co.,Ltd.,Liyang 213364
Abstract: The second generation bio-diesel has the properties of high octane number, low oxygen content and can blend directly with present diesel. The production and application of the second generation bio-diesel can effectively reduce the usage of limi-ted fossil fuel, and thus improve the quality of environment. The research of catalysts is considered as the most crucial part during production of second generation bio-diesel. This article reviews the category, catalytic reaction pathway and the forefront research of catalysts used in oil hydrotreatment. Noble metal catalysts possess high activity by decarboxylation/decarbonylation pathway, but they are expensive. The reaction pathway of conventional molybdenum catalyst is mainly hydrodeoxygenation. Sulfuration of catalyst is necessary before hydrotreatment, which will lead to serious environmental pollution. New-style molybdenum carbide catalyst and nickel catalyst perform catalytic reaction by hydrodeoxygenation pathway and decarboxylation/decarbonylation pathway, respectively. Zeolite as support improves the yield of isomerization alkane in products. Moreover, the prospect of future research of the catalyst is provided.
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2018, Vol. 32 
