Enhanced mercury removal from fix-bed reactor by lamella manganese oxide sorbents

4th Global Conference on Materials Science and Engineering

Cheng, H.W.^1 ; Yu, C.T.^1

Chemistry Division, Institute of Nuclear Energy Research, Longtan

325, Taiwan^1

关键词: Coprecipitation method;    Fix-bed reactors;    Hazardous metals;    Mercuries (Hg);    Mercury removal;    Removal efficiencies;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/103/1/012042/pdf
DOI  :  10.1088/1757-899X/103/1/012042

来源: IOP

【 摘 要 】

Mercury (Hg) is an extremely hazardous metal and attracted more concern because of its high toxicity and bioaccumulation. Several manganese-oxide-containing sorbents prepared by co-precipitation method could exhibit the mercury removal activities toward Hg0. The mercury removal test at the temperature of 300°C has the highest removal efficiency. Under this temperature, the maximum absorption equivalent of Mg-Al-Mn and Mn-Al were up to 90.9 and 247 μg/g, then gradually decreased at 400°C. The mercury removal efficiency declined in the following sequence: Mn-Al > Mg-Al-Mn > Mg-Al-Mn/AC/Mn/AC(p)> Mn/AC(g), due to the manganese-oxide content formed on the sorbents.