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The study on continuous denitrification, desulfurization of pyrolusite/activated coke hybrid catalyst

机译：连续反硝化，脱硫，热岩/活性焦杂交催化剂的脱硫

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摘要

In this study, the industrial application of pyrolusite/activated coke hybrid catalysts (ACP) for continuous SO2 and NO removal was simulated and studied systematically. The obtained results show that the denitrification process of ACP before SO2 removal had almost no influence on its desulfurization activity even though the surface functional groups showed variation. The denitrification property of ACP, however, significantly enhanced after desulfurization and regeneration. The NO removal efficiency of ACP increased from 74.2% to 100% and remained relatively stable, and the N-2 selectivity was higher than 90.2%. The formed metal sulfate (MnSO4 and Fe-2(SO4)(3)), showed the catalytic activity, which synergistically worked with surface functional groups to improve the selected catalytic reduction (SCR) of NO. However, large quantity of the formed metal sulphates restricted the mass transfer on the surface of ACP, which caused the reduction of desulfurization performance and the hypothesis of NO conversion of ACP-Rn.
机译：在这项研究中，在工业上应用软锰矿/活性焦炭混合催化剂（ACP），用于连续SO2和NO除去进行了模拟和系统的研究。得到的结果表明，脱硫前ACP的反硝化过程有其脱硫活性几乎没有影响，即使表面官能团表现出的变化。 ACP的脱氮性能，然而，显著脱硫再生后增强。 ACP的NO除去效率从74.2％提高到100％，并保持相对稳定，并且N 2选择性高于90.2％。所形成的金属硫酸盐（硫酸锰和Fe-2（SO 4）（3）），显示出催化活性，其与协同表面官能团的努力改善所选择催化还原NO的（SCR）。然而，所形成的金属硫酸盐的量大限制ACP的表面上，这引起的脱硫性能的降低和ACP-Rn的NO转化的假设上的质量传递。

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  • 来源
    《RSC Advances》 |2018年第1期|共8页
  • 作者

    Yang Lin; Yao Lu; Jiang Wenju; Jiang Xia; Li Jianjun;

  • 作者单位

    Sichuan Univ Coll Architecture &

    Environm Chengdu 610065 Sichuan Peoples R China;

    Sichuan Univ Coll Architecture &

    Environm Chengdu 610065 Sichuan Peoples R China;

    Sichuan Univ Coll Architecture &

    Environm Chengdu 610065 Sichuan Peoples R China;

    Sichuan Univ Coll Architecture &

    Environm Chengdu 610065 Sichuan Peoples R China;

    Sichuan Univ Coll Architecture &

    Environm Chengdu 610065 Sichuan Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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