Catalytic oxidation of elemental mercury by Mn–Mo/CNT at low temperature
Catalytic oxidation of elemental mercury by Mn–Mo/CNT at low temperature
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Mn·Mo/CNT低温催化氧化单质汞
DOI:
10.1016/j.cej.2015.09.090
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发表时间:
2016-01
影响因子:
15.1
通讯作者:
Minghou Xu
中科院分区:
文献类型:
--
作者:
Bo Zhao;Xiaowei Liu;Zijian Zhou;Haizhong Shao;Minghou Xu
Mercury oxidized by a type of novel carbon nanotube catalyst was studied in this work. The results of this suggest that in the absence of HCl, Mn/CNT could perfectly catalytic the process of O2oxidizing Hg0at 150–250 °C, and even with only 10 ppm HCl present, this catalyst could attain a high mercury oxidation efficiency. The optimal temperature and MnO2content for mercury oxidation was 250 °C and 5 wt%. However, Mn/CNT almost lost the ability to oxidize mercury in the presence of 500 ppm SO2because SO2reacted with MnO2in the catalyst to form manganese sulfate. Tests of mercury oxidized by Mn–Mo/CNT indicated that SO2could enhance mercury oxidation by this catalyst and that the optimal temperature for mercury oxidized by Mn–Mo/CNT decreased to 150 °C mainly because Mo was able to promote the transformation of SO2to SO3,which is beneficial for mercury oxidation, and Mo was also able protect the catalytic activation of MnO2on the catalyst. Tests over a long period of time showed that Mn–Mo/CNT was an effective available low temperature catalyst for mercury oxidation and that Hg0oxidized by HCl over Mn–Mo/CNT follows the Langmuir–Hinshelwood mechanism.
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影响因子:
15.1
作者:
Bo Zhao;Xiaowei Liu;Zijian Zhou;H. Shao;W. Chao;Junping Si;Minghou Xu
通讯作者:
Bo Zhao;Xiaowei Liu;Zijian Zhou;H. Shao;W. Chao;Junping Si;Minghou Xu
DOI:
10.1002/chin.200339252
发表时间:
2003-07
期刊:
ChemInform
影响因子:
--
作者:
Tong Lin;V. Bajpai;T. Ji;L. Dai
通讯作者:
Tong Lin;V. Bajpai;T. Ji;L. Dai
影响因子:
1.9
作者:
T. Jirsák;J. Rodríguez;J. Hrbek
通讯作者:
T. Jirsák;J. Rodríguez;J. Hrbek
影响因子:
5.4
作者:
M. C. Sellers;Niels P Zussblatt;C. Marsh
通讯作者:
M. C. Sellers;Niels P Zussblatt;C. Marsh
影响因子:
11.4
作者:
Srivastava, RK;Hutson, N;Staudt, J
通讯作者:
Staudt, J