About the plant

The Gaia project will be among the first large-scale carbon capture facilities in Europe, contributing to Denmark's goal of carbon neutrality by 2030.

Gaia is expected to capture approximately 500,000 tons of CO₂ from the Waste To Energy Plant. It will be transport and permanently stored. It would require about 8.3 million trees to absorb that amount of CO₂ in one year. In addition, extra heating will be used for district heating in the Greater Copenhagen area.

How does Carbon Capture works?

1. Sources can be waste-to-energy, power plants or factories.

2. CO₂ is absorbed from flue gas using amine-based solvents. In the absorption tower, amine solvent is released, which binds itself to the CO2, and separates it from the remaining flue gas thus capturing +95% of CO2 (the amine with CO2 is labelled rich amine).

3. The remaining flue gas with <5% of the CO2 is returned and released through the existing stack.

4. The rich amine passes through a lean-rich heat exchanger

5. Separation & Regeneration: The CO₂-rich amine is heated to release pure CO₂, regenerating the solvent for reuse.

6. The now lean amine solvent returns to the absorber tower through the lean-rich heat exchanger, allowing it to be utilised again

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