这研究描述了 KI 在煤气的阶段使妊娠的泥土的使用元素的水银(Hg 在烟道气体的 o ) 移动。装载的 KI 的效果,温度, O 2, 那么 2 和 H 2 Hg o 移动用一个固定的床反应堆被调查。Hg 有装载的 3% KI 的 KI 泥土的 o 移动效率能在 3 h 以后在高水平(约 80 %) 维持。KI 泥土示威了是为 Hg o 移动什么时候与激活的碳相比基于的吸附物。O 2 被发现是在改进 Hg o 移动。O 2 被表明帮助 KI 的转移到我 KI 泥土的表面上的 2 ,它能与 Hg o 直接。不并且那么, 2 能稍微改进 Hg o 移动,当时 H 2 O 极大地禁止了它。结果显示在吸附以后,大多数水银再逃离表面。当它离开了表面,一些水银可能被氧化了。结果证明化学反应首先在 KI 泥土的表面上发生在 KI 和水银之间。
This study described the use of clay impreg- nated by KI in gas phase elemental mercury (Hg°) removal in flue gas. The effects of KI loading, temperature, 02, SO2 and H20 on Hg°removal were investigated using a fixed bed reactor. The Hg° removal efficiency of KI-clay with 3% KI loading could maintain at a high level (approxi- mately 80 %) after 3 h. The KI-clay demonstrated to be a potential adsorbent for Hg° removal when compared with activated carbon based adsorbent. 02 was found to be an important factor in improving the Hg° removal. 02 was demonstrated to assist the transfer of KI to I2 on the surface of KI-clay, which could react with Hg° directly. NO and SO2 could slightly improve Hg° removal, while H20 inhibited it greatly. The results indicated that after adsorption, most of the mercury escaped from the surface again. Some of the mercury may have been oxidized as it left the surface. The results demonstrated that the chemical reaction primarily occurred between KI and mercury on the surface of the KI-clay.