Abstract:
The interrelations among CO,CO
2,O
2 and N
2 in electric arc furnace (EAF) off-gas as well as the effects of oxygen flow and the pool's carbon content on EAF off-gas composition were investigated to perfect studies on the variation laws of EAF off-gas composition. The result shows CO appears under the existence of a lot of CO
2,and its content increases with increasing CO
2 content. The O
2 content is in a linear relationship with the contents of CO
2 and N
2,but in an exponential relationship with the CO content. As the oxygen flow increases,the contents of CO and CO
2 increases,the contents of O
2 and N
2 reduces,and the utilization rate of oxygen improves. The contents of CO and CO
2 achieve the maximum when the mass fraction of carbon in the pool is about 1.3%.
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