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Cimenterie de Créchy

Vicat gasifier at Créchy: cement plant gets cleaner all the time

30 January 2018

A facility unique in Europe has come on line at the Vicat cement plant in Créchy: a gasifier. It reduces the proportion of fossil fuel used to produce cement. Details on the facility and its innovative process that makes our cement an increasingly clean material.

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Gazéifieur vicat
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Gazéifieur

Preservation of natural resources is one of our environmental priorities. After seven years of analysis, we developed a gasifier for low-carbon cement production. It beneficiates a large number of unchipped Class B and C waste wood (interior plywood boards and panels). 

The process: heated to 800°C in a reducing atmosphere, the wood is pyrolized and gasified. The gas produced is used as a source of heat for manufacturing cement. As a result, we increase the kiln fuel substitution rate from 5 to 15%. The Vicat cement plant in Créchy has achieved outstanding performance, with coal now accounting for just 20% of the energy used to fire cement.

« We managed to operate with 0% fossil fuel for a few weeks. We transform the waste of other industries into precious resources, that is to say alternative fuels that replace fossil energy sources. Vicat is a key player in energy transition.», Bruno, manager of the Vicat cement plant in Créchy

4.5M€

the amount invested, 42% of it being subsidies from France’s Environment and Energy Management Agency (ADEME)

80%

of thermal energy is obtained by repurposing waste.

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