Agência para o Investimento e Comércio Externo de Portugal


Air Liquide and EQIOM are joining forces in a project named “K6” with the aim to transform EQIOM’s Lumbres plant into one of the first carbon-neutral cement plants in Europe.

Through the implementation of innovative technologies, the project aims to capture around 8 million tons of CO2 over the first ten years of operation. The K6 project has been awarded funding by the European Commission through its 2021 Innovation Fund call as one of seven industrial-scale projects out of more than 300 grant applications.


As part of the K6 project, EQIOM will carry out a program of technological innovation and in-depth transformation of its existing cement production plant in Lumbres, France. The solution aims to implement a First-of-a-Kind oxyfuel-ready kiln, powered with a high level of alternative fuel. Air Liquide will support this initiative by supplying oxygen to EQIOM’s production process and by leveraging its proprietary technology CryocapTM Oxy to capture and liquefy the CO2 emissions.


Once purified and liquefied, the CO2 captured at the Lumbres Plant would be transported via shipping to permanent storage sites currently under development below the North Sea or would be utilized in building materials. The implementation of this project in close proximity to the port of Dunkirk would also contribute to the development of a new carbon capture and storage (CCS) ecosystem in Europe. The K6 project is a key step for the development of the Dunkirk D’Artagnan PCI (Project of a Common Interest), which aims to create a multi-modal CO2 export hub[1] from Dunkirk industrial basin and its broader area.


The European Innovation Fund is one of the world’s largest programs for promoting innovative low-carbon technologies. Receiving this funding of 150 million euros is an essential milestone towards the implementation of the project. The K6 project is subject to additional funding, regulatory approvals and internal feasibility assessments prior to commencement.