Experimental Research for the Effect of Sorbents on the Mercury Removal
Due to its harm to human health, more and more concern has been put on the mercury emitted from power stations burning coal. Both of the US EPA and European Commission have set regulations on the mercury emission from the electric utilities. China also pays more and more attention to the mercury emission and starts to sponsor the projects relative to the mercury emission. To reduce mercury emission, sorbent injection upstream the ESP or bag-house is one of the recommended methods. Before a sorbent is used in practice, its mercury capture ability needs to be evaluated. A lab-scale multiphase flow reactor was set up to conduct such evaluation. The experimental results show that the system can provide accurate information of sorbent evaluation under flue gas atmosphere. There was significant difference between the mercury removal efficiencies of tested sorbents, varying from 95％ down to 23％. SO2 in the flue gas could inhibit the mercury oxidization and capture. The sorbents tested has higher removal efficiency on the elemental mercury than on oxidized mercury. The sorbent would have higher mercury capturing efficiency with higher injection rate and longer residence time when other conditions were held constant.
Experimental Research Evaluation Sorbent Mercury Emission Mercury Removal
Jiang Wu Weiguo Pan Yuying Du Ping Lu Zhongzhu Qiu Y. Cao W.-P. Pan Ping He Wenhuan Wang
School of Energy and Environmental Engineering, Shanghai University of Electric Power 2103 Pingliang School of Power Engineering, Nanjing Normal University, 78 Bancang Rd., Nanjing 210042, P.R. China Institute for Combustion Science and Environmental Technology, Western Kentucky University 2413 Nash
国际会议
2007杭州国际动力工程会议(The International Conference on Power Engineering 2007)
杭州
英文
2007-10-23（万方平台首次上网日期，不代表论文的发表时间）