MIDREX ACT™ (Adjustable Carbon Technology)

To meet the market interest in DRI products with a wider range of carbon content (from 0.5% to 4.0%), Midrex has introduced ACT (Adjustable Carbon Technology). This technology can be added to new plants or retrofitted to existing Midrex shaft furnaces to increase carbon without lowering temperature.  The equipment used in the technology is well proven, and the design is of the same robust nature as all Midrex solutions.

With MIDREX ACT, a MIDREX Plant will have the ability to:

  • Produce CDRI with higher carbon content.
  • Produce HDRI with either higher carbon or at higher temperature or both.
  • Produce HBI with higher carbon content without detrimental loss of temperature at the briquetting machine or increasing briquetting temperature at a given carbon content.
  • Merchant plants (CDRI and HBI) can tailor their product chemistry and produce a value-added product to the specifications of their end users.

How MIDREX ACT works

Step 1

Step 1

Uses reformed gas from the reformed gas cooler

Step 2

Step 2

Gas is compressed to ~ 14 barg

Step 3

Step 3

Gas is cooled and mist is removed using an aftercooler and mist eliminator

Step 4

Step 4

Membrane unit separates the gas into a CO-rich stream and a H2-rich stream

Featured Plant
Cleveland progress

Cleveland-Cliffs

1st HBI plant with ACT technology

Capacity: 1.6 mtpy HBI

Location: Toledo, Ohio USA

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