Decarbonisation Technology August 2026 Issue

steam consumption down to 1.8 GJ/tCO₂. • Operational robustness : Thermally stable solvent with low degradation rate. • Compression cost savings : CO₂ can be produced at pressures up to 5 barg, lowering the cost of downstream compression. • Lower capture cost : -30% of CO₂ capture

Gas treated

CO lean solvent

Decanter

Up to 5 barg

Lean solvent

Absorber

CO 2 rich solvent

Stripper

Flue gas

Reboiler

Rich solvent

Lean solvent

Figure 2 DMX process concept and PFD

for integration with e‑fuel synthesis, requiring minimal polishing and enabling more efficient, lower‑energy power‑to‑liquids pathways. Integrating DMX carbon capture and e‑fuel technologies in one flowsheet E‑fuels are synthesised by converting captured CO₂ and electrolytic hydrogen into a CO‑rich syngas that can be upgraded into aviation or transport fuels. Their production relies heavily on access to high‑purity CO₂, making efficient carbon capture technologies essential to scale the industry. When integrated into an e‑fuel complex, DMX provides the high‑purity CO₂ required “ The demonstration of DMX TM technology through the 3D project plays a crucial role in ArcelorMittal France’s decarbonization strategy(...). The demonstration of the DMX TM technology has reinforced our confidence in the effectiveness of this solution, which can be integrated into our production processes as it offers optimized energy efficiency and is fully controlled in an industrial context. This technology aligns with our environmental commitment to achieving carbon neutrality by 2050 and is part of our roadmap to reach that goal ” Testimony from Jacques Dery CCUS Lead Decarbonization Program, ArcelorMittal France (DMX End User)

cost compared to MEA based technologies. • High performance : Very high capture rate (up to 99%) and high purity of produced CO 2 (>99.8%). For e‑fuel applications, the lower steam demand and high-purity CO 2 of DMX technology provide a catalyst-ready feed for e-fuel synthesis, improving both process efficiency and the project economics of coupling CO₂ capture with green hydrogen‑based synthesis. DMX industrial demonstration: EU H2020 3D Project The DMX demonstration unit has been developed under the EU H2020 ‘3D’ project, with 11 partners, including ArcelorMittal, Axens, IFPEN, and TotalEnergies. It has operated for two years, capturing 0.5 tCO2 /h (or 4,000 TPA) from the blast furnace gas. The 3D demonstration unit, installed at ArcelorMittal’s steel mill, has successfully showcased the full potential of DMX carbon capture technology. It highlights its exceptional operability, outstanding solvent stability, low energy consumption, and consistent delivery of high-purity CO₂ even under varying CO₂ concentrations. Beyond demonstrating technical excellence, this project also investigates the full-scale capture, conditioning, transport, and storage of 1 MTPA of CO₂. It contributes to developing a CO₂ hub in Dunkirk, connected to storage facilities such as those planned for Northern Lights (or Longship). This successful demonstration confirms that the DMX product stream is inherently suitable