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Construction: carbon-free cement is possible

2023-05-24T17:52:39.557Z

Highlights: The French cement industry presents a roadmap for a 50% reduction in CO2 emissions by 2030. It will require €3 to €5.5 billion of investment. The cement consists mainly of clinker, a mixture of 80% limestone and 20% clay fired at a very high temperature (1450 degrees) This cooking produces a chemical reaction that separates the CO2 from the rest of the mixture. In addition, very high heat furnaces, operating constantly, require a lot of energy, which can be original.


DECRYPTION - The sector presents a roadmap for a 50% reduction in CO2 emissions by 2030. It will require €3 to €5.5 billion of investment. Public aid is expected.


The stakes are high for the French cement industry. On Thursday, the entire sector will meet in Paris to present its "decarbonization" roadmap, which will then be proposed to the government. "Today, it is absolutely necessary to accelerate on this path, points out Bruno Pillon, president of the French Union of the Cement Industry (Sfic) and boss in France of the German giant Heidelberg Materials, in an interview with Le Figaro. We have already waited far too long."

Decarbonizing cement is a major challenge, because its manufacture emits a lot of CO2. The cement consists mainly of clinker, a mixture of 80% limestone and 20% clay fired at a very high temperature (1450 degrees). This cooking produces a chemical reaction that separates the CO2 from the rest of the mixture. As a result, the process is, by nature, a high emitter of CO2. In addition, very high heat furnaces, operating constantly, require a lot of energy, which can be original ...

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Source: lefigaro

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