CEMCAP is an EU Horizon 2020 project that aims at maturing CO2 capture technologies suitable for retrofitting to existing cement plants by undertaking pilot-scale demonstration under industrially relevant conditions. Four capture technologies are being tested, analyzed and compared on a consistent basis: Oxyfuel capture, Chilled Ammonia Process (CAP), membrane-assisted CO2 liquefaction and Calcium looping. Beyond CEMCAP, having more options than the already mature amine technology available for retrofittable CO2 capture from cement plants, the technology options for CCS deployment will be expanded.

CO2 generation is an inherent part of the cement production process, due to the calcination of the most important raw material, limestone (CaCO3 converted to CaO and CO2): around 60 % of the CO2 emissions from the clinker burning process are due to this reaction. There are currently no feasible methods to produce clinker and thus cement without releasing CO2 from CaCO3, and the cement production process emissions contribute to around 5% of global anthropogenic CO2 emissions. In addition there are the emissions from combustion at the cement plant of fuels, which are to a large extent fossil, as well as the generation of electric power required for e.g. grinding of raw materials and clinker. Replacement of fossil fuels with renewables and waste is increasing but still limited in cement plant combustion, and the necessary electric power can in the future come from renewables or fossil power generation with CO2 Capture and Storage (CCS). Because cement plants typically have a lifetime as long as 30-50 years, technologies must be developed to enable retrofit of CO2 capture to existing cement plants. Against this background, the Horizon 2020 project CEMCAP has been developed. The CEMCAP consortium comprises the following partners:

  • Cement manufacturers: Norcem (NO), Italcementi (IT), HeidelbergCement (DE)
  • Technology Providers: GE Carbon Capture (DE), GE power Sweden (SE), IKN (DE), ThyssenKrupp Industrial Solutions (DE)
  • RD&I providers: SINTEF Energy research (NO), ECRA (DE), TNO (NL), ETH Zürich (CH), IFK/University of Stuttgart (DE), Politecnico di Milano (IT), CSIC (ES), VDZ (DE).
CEMCAP project members visiting the HeidelbergCement plant in Lixhe, Belgium

SINTEF Energy Research is project coordinator. The main contribution of TNO in this project is testing the applicability of pre-commercial membranes for the membrane-assisted CO2 liquefaction process and compile and evaluate existing post-capture CO2 management options. Transport and storage as well as utilisation of CO2 in products, especially in the form of carbonates, will be studied taking into account the perspective of the cement industry.

This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 641185 and is supported by the Swiss State Secretariat for Education, Research and Innovation (SERI) under contract number 15.0160.

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