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Author(s): |
Da-hua Huang, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China
Shan-shan Chen, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China
Li-cheng Li, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China
Zhu-hong Yang, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China
Xiao-hua Lu, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China |
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Abstract: |
A novel NiMo/TiO2 molding catalyst used for the hydrodesulfurization (HDS) was prepared by wet-mixing-kneading method, in which the amorphous titanic acid hydrate [H2Ti2O5·nH2O] and amorphous titanium compounds were used as the raw materials , the ammonium heptamolybdate [(NH4)6Mo7O24.4H2O] and nickel nitrate hexahydrate [(Ni(NO3)2.6H2O)] were used as the active component solutions. The catalyst was well characterized by some techniques, such as X-ray diffraction (XRD), N2 adsorption-desorption, and its HDS activity for dibenzothiophene was evaluated in a continuous-flow fixed-bed micro-reactor, compared with the NiMo/TiO2 catalyst prepared from impregnation method. The XRD results showed that the wet-mixing-kneading catalyst and impregnation catalyst are all pure anatase phase. The surface area of the wet-mixing-kneading catalyst is higher than that of impregnation catalyst. The results of dibenzothiophene hydrodesulfurization showed that the wet-mixing-kneading catalyst has higher activity than the impregnation catalyst.
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