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采用介质阻挡放电低温等离子体(dielectric barrier discharge non-thermal plasma,DBD-NTP)结合氯化钙(CaCl2)吸附剂进行了模拟烟气脱汞实验研究.实验结果表明,CaCl2能够有效的吸附经DBD-NTP氧化的汞化合物,而DBD-NTP中间耦合 CaCl2 氧化脱汞方式效果更佳,在输入能量为120J/L条件下,汞脱除效率在数分钟内就可达到98%以上;通过对 CaCl2 吸附的汞化合物采取程序升温脱附法(temperature programmed desorption,TPD)以及能谱分析(energy dispersive spectroscope,EDS),推断汞化合物产物形态为HgCl2、Hg2O、HgO3和HgO的混合物;在DBD-NTP中间耦合CaCl2氧化脱汞过程中,除了发生汞的气相氧化反应外,NTP还能够激发Cl元素参与到Hg0的氧化过程,并且形成的汞氧化物能够提供一定的活性位,通过表面诱导反应进一步促进对Hg0的氧化作用.“,”The oxidation of elemental mercury was investigated using dielectric barrier discharge non-thermal plasma (DBD-NTP) technology combined with calcium chloride adsorbent (CaCl2) in the simulated flue gas. The results indicate that most of Hg0 was oxidized by DBD-NTP, and the oxidized mercury was effectively adsorbed by CaCl2. While better mercury removal result is obtained by DBD-NTP coupled with CaCl2, when the specific energy density is about 120J/L, approximately 98% mercury removal efficiency is observed within a few minutes. The mercury species adsorbed on the CaCl2 was analyzed by temperature programmed desorption (TPD) and energy dispersive spectroscopy (EDS). It is concluded that the mercury species are HgCl2, Hg2O, HgO3 and HgO. In addition to the gas-phase oxidation of Hg0 within DBD-NTP coupled with CaCl2, it was proposed that Cl was stimulated and involved in the Hg0 oxidation process, and the oxidized mercury species can act as an active site to enhance the Hg0 removal through surface-reactions.