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

机译：软锰矿/活性炭杂化催化剂连续反硝化脱硫的研究

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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 N2 selectivity was higher than 90.2%. The formed metal sulfate (MnSO4 and Fe2(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：本研究系统地模拟和研究了软锰矿/活性炭杂化催化剂（ACP）在SO 2 连续脱除中的工业应用。所得结果表明，即使表面官能团发生变化，ACP在SO 2 去除前的反硝化过程对其脱硫活性几乎没有影响。然而，脱硫和再生后，ACP的反硝化性能显着增强。 ACP的脱氮效率从74.2％提高到100％，并保持相对稳定，N 2 的选择性高于90.2％。形成的金属硫酸盐（MnSO 4 和Fe 2 （SO 4 ） 3 ））显示出催化活性，该催化活性与表面官能团协同作用以提高NO的选择性催化还原（SCR）。然而，大量形成的金属硫酸盐限制了ACP表面的传质，这导致脱硫性能下降以及ACP-Rn发生NO转化的假说。

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