Hong-ming Long, Xue-jian Wu, Tie-jun Chun, Zhan-xia Di, Ping Wang, and Qing-min Meng, A pilot-scale study of selective desulfurization via urea addition in iron ore sintering, Int. J. Miner. Metall. Mater., 23(2016), No. 11, pp. 1239-1243. https://doi.org/10.1007/s12613-016-1344-7
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Hong-ming Long, Xue-jian Wu, Tie-jun Chun, Zhan-xia Di, Ping Wang, and Qing-min Meng, A pilot-scale study of selective desulfurization via urea addition in iron ore sintering, Int. J. Miner. Metall. Mater., 23(2016), No. 11, pp. 1239-1243. https://doi.org/10.1007/s12613-016-1344-7
Hong-ming Long, Xue-jian Wu, Tie-jun Chun, Zhan-xia Di, Ping Wang, and Qing-min Meng, A pilot-scale study of selective desulfurization via urea addition in iron ore sintering, Int. J. Miner. Metall. Mater., 23(2016), No. 11, pp. 1239-1243. https://doi.org/10.1007/s12613-016-1344-7
Citation:
Hong-ming Long, Xue-jian Wu, Tie-jun Chun, Zhan-xia Di, Ping Wang, and Qing-min Meng, A pilot-scale study of selective desulfurization via urea addition in iron ore sintering, Int. J. Miner. Metall. Mater., 23(2016), No. 11, pp. 1239-1243. https://doi.org/10.1007/s12613-016-1344-7
The iron ore sintering process is the main source of SO2 emissions in the iron and steel industry. In our previous research, we proposed a novel technology for reducing SO2 emissions in the flue gas in the iron ore sintering process by adding urea at a given distance from the sintering grate bar. In this paper, a pilot-scale experiment was carried out in a commercial sintering plant. The results showed that, compared to the SO2 concentration in flue gas without urea addition, the SO2 concentration decreased substantially from 694.2 to 108.0 mg/m3 when 0.10wt% urea was added. NH3 decomposed by urea reacted with SO2 to produce (NH4)2SO4, decreasing the SO2 concentration in the flue gas.
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