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All terms used of this subpart have the same meaning given in the Clean Air Act and subpart A of this part.
Alloy product produced in EAF | CH4 emission factor (kg CH4 per metric ton product) | ||
EAF Operation | |||
Batch-charging | Sprinkle-charginga | Sprinkle charging and >750 °Cb | |
Silicon metal | 1.5 | 1.2 | 0.7 |
Ferrosilicon 90% | 1.4 | 1.1 | 0.6 |
Ferrosilicon 75% | 1.3 | 1.0 | 0.5 |
Ferrosilicon 65% | 1.3 | 1.0 | 0.5 |
aSprinkle-charging is charging intermittently every minute. | |||
bTemperature measured in off-gas channel downstream of the furnace hood. |
[74 FR 56425 Oct. 30, 2009]