|
|
|
篇目详细内容 |
|
【篇名】 |
Removal of elemental mercury with Mn/Mo/Ru/Al2O3 membrane catalytic system |
|
【刊名】 |
Frontiers of Environmental Science and Engineering in China |
|
【刊名缩写】 |
Front.Environ.Sci.Engin.China |
|
【ISSN】 |
2095-2201 |
|
【EISSN】 |
2095-221X |
|
【DOI】 |
10.1007/s11783-012-0430-y |
|
【出版社】 |
Higher Education Press and Springer-Verlag Berlin
Heidelberg |
|
【出版年】 |
2013 |
|
【卷期】 |
7
卷3期 |
|
【页码】 |
464-473
页,共
10
页 |
|
【作者】 |
Yongfu GUO;
Naiqiang YAN;
Ping LIU;
Shijian YANG;
Juan WANG;
Zan QU;
|
|
【关键词】 |
flue gas; elemental mercury; membrane; catalysis; transition metal |
【摘要】 |
|
In this work, a catalytic membrane using Mn/Mo/Ru/Al2O3 as the catalyst was employed to remove elemental mercury (Hg0) from flue gas at low temperature. Compared with traditional catalytic oxidation (TCO) mode, Mn/Al2O3 membrane catalytic system had much higher removal efficiency of Hg0. After the incorporation of Mo and Ru, the production of Cl2 from the Deacon reaction and the retainability for oxidants over Mn/Al2O3 membrane were greatly enhanced. As a result, the oxidization of Hg0 over Mn/Al2O3 membrane was obviously promoted due to incorporation of Mo and Ru. In the presence of 8？ppmv HCl, the removal efficiency of Hg0 by Mn/Mo/Ru/Al2O3 membrane reached 95% at 423？K. The influence of NO and SO2 on Hg0 removal were insignificant even if 200？ppmv NO and 1000？ppmv SO2 were used. Moreover, compared with the TCO mode, the Mn/Mo/Ru/Al2O3 membrane catalytic system could remarkably reduce the demanded amount of oxidants for Hg0 removal. Therefore, the Mn/Mo/Ru/Al2O3 membrane catalytic system may be a promising technology for the control of Hg0 emission. |
|
