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Citation: WANG Yong-gang, ZHANG Hai-yong, ZHANG Pei-zhong, XU De-ping, ZHAO Kuan, WANG Fang-jie. Hydroprocessing of low temperature coal tar on NiW/γ-Al2O3catalyst[J]. Journal of Fuel Chemistry and Technology, ;2012, 40(12): 1492-1497. shu

Hydroprocessing of low temperature coal tar on NiW/γ-Al2O3catalyst

  • 1.

    China University of Mining and Technology (Beijing), Beijing 100083, China

  • Corresponding author: WANG Yong-gang, 
  • Received Date: 10 April 2012
    Available Online: 5 June 2012

    Fund Project: 国家高技术研究发展计划(863计划, 2011AA05A203) (863计划, 2011AA05A203) 中国矿业大学(北京)2010年中央高校基本科研业务费专项基金(研究生科研专项)资助(2010YH01)。 (北京)2010年中央高校基本科研业务费专项基金(研究生科研专项)资助(2010YH01)

  • γ-Al2O3 supported catalysts with different Ni/W atomic ratios for the hydroprocessing of low temperature coal tar (LTCT) were prepared and characterized by BET, XRD, H2-TPR and TG analysis. The hydroprocessing of <350 ℃ fraction of LTCT was carried out in a fixed-bed reactor. The product distribution and composition were analyzed by distillation, GC/MS, fluorescent indicator adsorption and elementary analysis. The results show that NiO and WO3 are evenly distributed on the support surface; and low-loading NiO is difficult to reduce since the strong force is formed with the support surface. The phenol conversion, the selectivity of kerosene fraction and the content of naphthene and hydro-aromatic in the product are the highest at a Ni/W atomic ratio of 0.38, while the activities of HDS and HDN and the H/C atomic ratio in the product are also the best. It indicates that the NiW/γ-Al2O3 catalyst with an optimum Ni/W atomic ratio of 0.38 is appropriate for the hydroprocessing of LTCT.
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