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Citation: WANG Guang-jian, LI Jia-jia, WU Chun-ze, WANG Fang. Study on the preparation of TiO2-Al2O3 composite support and its application in Co-Mo/TiO2-Al2O3 catalyst for hydro-desulfurization[J]. Journal of Fuel Chemistry and Technology, ;2016, 44(12): 1518-1522. shu

Study on the preparation of TiO2-Al2O3 composite support and its application in Co-Mo/TiO2-Al2O3 catalyst for hydro-desulfurization

  • Chemical Engineering Institute, Qingdao University of Science & Technology, Qingdao 266042, China

  • Corresponding author: WANG Guang-jian, guangjianwang@126.com
  • Received Date: 1 July 2016
    Revised Date: 18 August 2016

Figures(5)

  • A variety of TiO2-Al2O3 composite support were prepared using improved sol-gel method (SG), co-precipitation method (CP), surface precipitation (PR) and mechanical kneading method (ME), and the influence of preparation methods on their physical properties were investigated. The hydro-desulfurization activity of Co-Mo/TiO2-Al2O3-X catalysts prepared by impregnation method was studied. XRD, BET and SEM were used to characterize the composite support and the catalysts. Results show that the composite support prepared by SG method has uniform morphology with larger surface area, pore size and pore volume. And the monolayer or sub-monolayer of TiO2 existed in the γ-Al2O3. Under the reaction conditions of 3.0 MPa of hydrogen pressure, 280℃ of reaction temperature, 4 h of reaction time, 1.4 h-1 of the liquid space velocity and 600 of hydrogen to oil ratio, Co-Mo/TiO2-Al2O3 prepared by SG method has highest hydro-desulfurization activity, and the thiophene conversion rate reached 96.6%.
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