ECCSTAZE

Scope

ECCSTAZE develops a fully electric, heat-free route to deep CO₂ removal. Instead of a thermal reboiler, it uses a hydroxide-based solvent that is regenerated by bipolar-membrane electrodialysis, powered only by (green) electricity. The process is designed for deep removal — capturing 99.9%+ of the CO₂ — which makes it well suited to reaching net-zero and negative emissions. The project develops and produces the required membranes and scales the process from laboratory proof of concept toward a pilot (TRL 5–6).

Main targets

• Capture rate of 99.9%+ (down to ~50 ppmv CO₂ at the outlet).
• Deliver CO₂ at pressures up to ~10 bar.
• Reach a target capture cost in the range of €35–45/tCO₂.
• Run entirely on electricity, avoiding thermal energy input.

Hovyu's activities

Hovyu is the technology developer behind the capture process (protected by patent), and leads the process engineering and simulation (ProTreat®), the techno-economic analysis, and the integration of the electrochemical (membrane) regeneration into a workable capture process — carrying it toward pilot operation.

How the electrochemical regeneration works