The Antoing plant, the trigger of a whole value chain

While the Anthemis project will focus on the carbon capture process, collaborations will be established with various partners to create a complete CO₂ value chain, with the Antoing clinker plant as the kick-starter.

CCS value chain relies on external partners for carbon transport by onshore and offshore pipeline networks and permanent storage in the North Sea.

The development of adequate infrastructure connecting Belgium, Germany and other North-West European countries to a storage site in Norway with the aim of sequestering CO₂ under the Norwegian continental shelf is therefore strongly needed.

While this remains the preferred scenario, other options are currently under investigation. One alternative includes inland transport via river barges and offshore pipeline transport to a storage site in the Dutch North Sea.

Our partnership with Linde

Heidelberg Materials is jointly assessing part of this project together with its valued partner Linde, who is drawing on its expertise for CO₂ capture, using equipment specially configured to operate with pure oxygen rather than ambient air. 

This approach is expected to produce a kiln gas stream at the outlet that is highly enriched in CO₂, exceeding 80%. This initial concentration stage is essential before the CO₂ is sent to a cryogenic purification unit (CPU – CO₂ Purification Unit), where it will be purified to a level of approximately 99%. 

Once purified, the CO₂ will be transported via a planned network of onshore and subsea pipelines to storage sites in the North Sea, where it is intended to be permanently and safely sequestered.

Learn more about our plant
and the Anthemis project