Details

Autor(en) / Beteiligte

• Hong-ming Long Xue-jian Wu Tie-jun Chun Zhan-xia Di Ping Wang Qing-min Meng

Titel

A pilot-scale study of selective desulfurization via urea addition in iron ore sintering

Ist Teil von

• 矿物冶金与材料学报：英文版, 2016, Vol.23 (11), p.1239-1243

Erscheinungsjahr

2016

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The iron ore sintering process is the main source of SO_2 emissions in the iron and steel industry. In our previous research, we proposed a novel technology for reducing SO_2 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 SO_2 concentration in flue gas without urea addition, the SO_2 concentration decreased substantially from 694.2 to 108.0 mg/m~3 when 0.10wt% urea was added. NH_3 decomposed by urea reacted with SO_2 to produce（NH_4）_2SO_4, decreasing the SO_2 concentration in the flue gas.