As compared to other DR process, the DRI and steel production costs through the ENERGIRON® Process is lower due to:
- Lower consumption of iron ore
- Lower total energy (thermal + electrical) consumption
- Use of low-cost iron ores
The ENERGIRON® process offers the flexibility to operate with low cost oxide pellets or mixtures of oxide pellets and lump ore. There is not a practical limitation regarding the chemical composition of the iron ore.
TYPICAL CONSUMPTIONS FIGURES:
| ITEM | UNIT | VALUE | REMARK |
|---|---|---|---|
| Plant capacity | tpy | 200,000-2,500,000 | |
| Metallization | ≥94% | ||
| Carbon (controlled) inputs | 1.5%-5.0% | Depending on extent of “in situ” reforming | |
| Iron ore | t/t | 1.38-1.4 | Depending on DRI carbon |
| Natural gas | Gcal/t | 2.3-2.6 | Depending on DRI carbon & temperature, extent of in-situ reforming and power co-generation |
| Electricity | KWh/t | 0-85 | Depending power co-generation |
| Water | m3/t | 0-1.3 | Depending on water |
| Labor | m-h/t | 0.11-0.17 | Depending on plant size |
| Maintenance | US$/t | 3.0-3.3 | For cold-hot DRI |