A pilot-scale study of selective desulfurization via urea addition in iron ore sintering
来源期刊：International Journal of Minerals Metallurgy and Materials2016年第11期
论文作者：Hong-ming Long Xue-jian Wu Tie-jun Chun Zhan-xia Di Ping Wang Qing-min Meng
文章页码：1239 - 1243
摘 要：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.
Hong-ming Long，Xue-jian Wu，Tie-jun Chun，Zhan-xia Di，Ping Wang，Qing-min Meng
School of Metallurgical Engineering,Anhui University of Technology
摘 要：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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