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8418274 
Journal Article 
煤直接液化条件下菲催化加氢反应行为研究 
Wang, W; Shu, G; Zhang, X; Wang, H; Gao, S; Bie, S; Jiang, H 
2019 
Chk 
Huaxue Fanying Gongcheng yu Gongyi / Chemical Reactive Engineering and Technology
ISSN: 1001-7631 
Zhejiang University 
35 
2 
106-112 
Chinese 
To develop the process that the heavy aromatic component in the coal liquefied oil is taken as circulating of hydrogen-supply solvent by pre-hydrotreating, which has good hydrogen-supply performance, and the coal direct liquefaction reaction condition is mild with the circulating solvent. In the experiments, phenanthrene was used as a model compound, and the catalytic hydrogenation reactions of phenanthrene were studied on a Ni-Mo/Al2O3 catalyst using a constant-temperature fixed-bed reactor. The effects of different volume space velocity, pressure and temperature on the reaction results were investigated under the conditions of total pressure of 14-20 MPa and reaction temperature of 300-400, and the analysis wit℃ h Aspen equilibrium reactor model showed that the hydrogenation reactions did not reach thermodynamic equilibrium under experimental conditions. According to Langmuir-Hinshelwood-Hougen-Watson (LHHW) competitive adsorption theory, the hydrogenation kinetics of phenanthrene reaction system were calculated. The kinetic data indicated that the Ni-Mo/Al2O3 catalyst is beneficial to the deep hydrogenation of phenanthrene under the direct coal liquefaction condition, and the reaction is mainly carried out through the path of phenanthrene→dihydrophenanthrene→octahydrophenanthrene→tetradecahydrophenanthrene. The depth of phenanthrene hydrogenation can be controlled by increasing the space velocity and lowering the reaction temperature appropriately to achieve the purpose of controlling the hydrogenation product distribution of phenanthrene. © 2019, Editorial Board of Journal of Chemical Reaction Engineering and Technology. All right reserved. 
Catalytic hydrogenation; Direct coal liquefaction; Kinetics; Phenanthrene