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Volume 24 Issue 5
May  2017
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文章导航 >  矿物冶金与材料学报（英文）  > 2017  >  24(5): 493-503
Jin-fang Ma, Guang-wei Wang, Jian-liang Zhang, Xin-yu Li, Zheng-jian Liu, Ke-xin Jiao,  and Jian Guo, Reduction behavior and kinetics of vanadium-titanium sinters under high potential oxygen enriched pulverized coal injection, Int. J. Miner. Metall. Mater., 24(2017), No. 5, pp. 493-503. https://doi.org/10.1007/s12613-017-1430-5
Cite this article as:
Jin-fang Ma, Guang-wei Wang, Jian-liang Zhang, Xin-yu Li, Zheng-jian Liu, Ke-xin Jiao,  and Jian Guo, Reduction behavior and kinetics of vanadium-titanium sinters under high potential oxygen enriched pulverized coal injection, Int. J. Miner. Metall. Mater., 24(2017), No. 5, pp. 493-503. https://doi.org/10.1007/s12613-017-1430-5
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研究论文Open Access

Reduction behavior and kinetics of vanadium-titanium sinters under high potential oxygen enriched pulverized coal injection

  • School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

  • Plans and Operations Department, Wanbao Mining Ltd., Beijing 100053, China

  • 通讯作者:

    Guang-wei Wang    E-mail: wgw676@163.com

  • In this work, the reduction behavior of vanadium-titanium sinters was studied under five different sets of conditions of pulverized coal injection with oxygen enrichment. The modified random pore model was established to analyze the reduction kinetics. The results show that the reduction rate of sinters was accelerated by an increase of CO and H2 contents. Meanwhile, with the increase in CO and H2 contents, the increasing range of the medium reduction index (MRE) of sinters decreased. The increasing oxygen enrichment ratio played a diminishing role in improving the reduction behavior of the sinters. The reducing process kinetic parameters were solved using the modified random role model. The results indicated that, with increasing oxygen enrichment, the contents of CO and H2 in the reducing gas increased. The reduction activation energy of the sinters decreased to between 20.4 and 23.2 kJ/mol.
    • Research ArticleOpen Access

    Reduction behavior and kinetics of vanadium-titanium sinters under high potential oxygen enriched pulverized coal injection

    + Author Affiliations
      Abstract
    • In this work, the reduction behavior of vanadium-titanium sinters was studied under five different sets of conditions of pulverized coal injection with oxygen enrichment. The modified random pore model was established to analyze the reduction kinetics. The results show that the reduction rate of sinters was accelerated by an increase of CO and H2 contents. Meanwhile, with the increase in CO and H2 contents, the increasing range of the medium reduction index (MRE) of sinters decreased. The increasing oxygen enrichment ratio played a diminishing role in improving the reduction behavior of the sinters. The reducing process kinetic parameters were solved using the modified random role model. The results indicated that, with increasing oxygen enrichment, the contents of CO and H2 in the reducing gas increased. The reduction activation energy of the sinters decreased to between 20.4 and 23.2 kJ/mol.
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