go4zero project
GO4ZERO will deploy an innovative air-oxyfuel switchable kiln with carbon purification technology at Holcim’s cement plant in Obourg, Belgium. CO2 will then be sequestered under the North Sea. The project aims to be operational by 2029 and store around 1.1 million tonnes of CO2 per year.
In 2023, the project was selected for a grant from the EU Innovation Fund.
go4zero at a glance
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| Net zero by 2029 | Image
| Oxyfuel technology | |
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| 1.1 million tonnes CO2 captured annually | Image
| EU Innovation Grant funding | |
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| Air-oxyfuel switchable cement kiln | Image
| Storage pathway |
The technology behind the project
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 CryocapTM 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.
“With GO4ZERO, we are developing a full carbon capture, transport and storage value chain with the goal to be producing net-zero cement by the end of the decade.”
More on Holcim's net-zero journey
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