Mathematical Modeling of Mn and Pb Emissions From Electric Arc Furnaces
(Room 202C)
08 May 17
11:00 AM
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11:30 AM
Tracks:
Baghouse & Fume Control
Due to stringent permit limits imposed by various regulatory bodies in North America, controlling EAF emissions has become a key concern. There are mainly two mechanisms of dust formation: enhanced vaporization effect and bubble burst effect. In the present study, nine cases were considered by a steel plant, for which the measured iron, manganese, zinc and lead contents in dust were compared with predictions made using computational thermodynamics. The difference between the plant data and predictions is attributed to the fact that EAF does not operate under perfect equilibrium conditions and dust formation by mechanical action is not considered in the thermodynamic calculations. Computational fluid dynamics was applied to estimate the capture efficiency of the capture system and also calculate the amount of dust deposited in the EAF doghouse.