Carbon capture

Becoming a net-zero company

Carbon capture, utilization and storage (CCUS) technologies are an integral component of our decarbonization journey, and Holcim is actively working to integrate them throughout our business.

Understanding carbon capture, utilization and storage technologies

Carbon capture technologies separate and concentrate CO2 from industrial processes. They can facilitate safe storage underground, recycling for chemical and fuel applications, or capture and recarbonation in concrete and mineral components.

Holcim is in engaged in the development and integration of CCUS – already proven in other industries – within the green building sector:

  • Post-combustion technologies
    In the exhaust gas of a traditional kiln system, CO2 is absorbed by a liquid solvent and captured in concentrated form by a regenerator.
  • Integrated processes
    Possible alternatives to pure post-combustion capture include the calcination of raw materials, electricity usage in clinker manufacturing, and the use of purified oxygen in cement manufacturing combustion (oxyfuel).

Participating in CCUS pilot projects around the world


A 10-company consortium based in Germany, Westküste100 develops end-to-end sustainable business practices to reduce waste across all sectors.

The C2B project involves capturing CO2 from cement manufacturing at the Holcim Lägerdorf plant in Germany and transforming it into climate-friendly aviation and heating fuel. The HyScale100 consortium, part of Westküste100 and linked to the C2B project, was officially awarded Important Project of Common European Interest (IPCEI) status in May 2021.

The CO2MENT project

The CO2MENT project in Canada is testing an innovative end-of-pipe solution to remove and reuse CO2 from cement manufacturing. In partnership with Total, Svante and Oxy Low Carbon Ventures, we are developing a commercial-scale carbon-capture facility at the Holcim Portland Cement Plant in Florence, Colorado (US). The aim is to permanently sequester CO2 underground.

In 2020, the US National Energy Technology Laboratory announced its support of the Holcim CO2MENT Colorado Project.


The ECCO2 project, in partnership with Carbon Clean and Sistemas de Calor, is a CCUS pilot project designed to enhance farm efficiency.

ECCO2 aims to capture CO2 from flue gas at our Carboneras plant in Almería, Spain and use it to accelerate crop production while reducing the amount of soil and water required per kilogram of vegetable production.

The role of hydrogen and electrification

We believe the hydrogen revolution will drive forward the energy transition across several sectors. At Holcim, we are assessing hydrogen’s potential in two key applications. First, we are studying it as a clean alternative to fossil fuels in our transportation activities and kilns. And second, we are looking at how it can support our CCUS strategy of converting CO2 into valuable products.

Our stories