Circored® Process

Reduction gas heaters for the Circored® process

The direct reduced iron is produced in an two-stage reactor consisting of a circulating and a stationary fluidised bed. Hydrogen is used as the reduction gas

Contact

Tel: +49.89.7447.47 - 0
Fax: +49.89.7447.47 - 17

E-mail:
selas-linde@linde-le.com

Plants completed

1995 - today

SL has supplied 3 reduction gas furnaces for the first large-scale plant using this process

Performance features

Volume flow
reduction gas:

so far, up to 173,000 Nm³/h

Product outlet temperature:

700 - 884°C

Absorbed output:

8,8 - 19,2 MW

Efficiency:

> 90% possible

NOx Emissions:

< 300 mg/Nm³

Delivery time:

< 12 - 14 months (delivery FOB)
< 20 months (mechanical completion)

Plant features

Optimised use of energy:

through air preheater temperatures up to 740°C

Product-side pressure losses:

< 15 kPa at 193,000 Nm³/h

Bottom and side wall firing possible:

Process optimisation:

Quadrupling the first large-scale plant

References

Trinidad

CAL, Point Lisas