CO2BLOC

As part of the co₂ncreat project, an innovative project aiming to produce eco-friendly masonry blocks using CO₂ and co-products from stainless steel production, the installation of a pilot unit in the test phase is essential.   

The CO₂bloc project, developed in collaboration with our partners Prefer and Orbix, aims to build, install and operate a pilot unit at Prefer's production site in Chokier (Belgium).   

With a production capacity of around 10,000 masonry blocks in a batch, the objective of this unit is to validate technical specifications, particularly those concerning the use of recycled slag instead of sand and aggregates, and of CO₂ as a binder. The pilot process will simulate the behavior of our industrial flue gases, which would enable the CO₂ to be captured directly without prior transformation or purification.  

The objective of the pilot will be to validate feasibility on an industrial scale, guide engineering decisions and help optimize the carbonation process enabling CO₂ to be used and sequestered for the production of building blocks.  

The collaborative research and development project between Prefer, Orbix and Lhoist is supported by the European Regional Development Fund (ERDF) and the COOTECH program, a Walloon subsidy that encourages companies to work together to set up research and development programs. 

Discover more about our other decarbonization projects