GO4ZERO

The project will be carried out in two phases. The first phase consists of replacing the current clinker kiln with a next-generation air-oxyfuel switchable kiln. This will enable a reduction in CO2 emissions of nearly 30% per tonne of clinker. The second phase consists of capturing CO2 and implementing an innovative oxyfuel process using Air Liquide’s Cryocap™ Oxy technology. The technology will purify CO2 generated from production in Obourg to above 99.5%. Captured CO2 will then be transported via Fluxys’ network to the Antwerp@C CO2 Export Hub where it will be liquified and shipped for storage under the North Sea. In February 2026, Holcim has paused development.