HeidelbergCement and partners drive innovative CO2 separation

HeidelbergCement is advancing the development of innovative technologies to reduce CO2 emissions. After very good results from the first phase of the project, the company is starting the further development and scale-up of the LEILAC technology (Low Emissions Intensity Lime And Cement) together with the Australian technology company Calix and a European consortium. The patented LEILAC process makes it possible to capture high-purity CO2 from cement production via a separate exhaust gas stream and to utilize it for other purposes. Two-thirds of the CO2 emissions of a cement plant are process-related emissions generated during the heating of limestone and are therefore unavoidable.

Central aspects of the LEILAC 2 project are the further scale-up of the technology to an industrial level, the full process integration into an existing cement plant, and the heat supply of the plant from renewable energies for climate-neutral CO2 separation.

Like its predecessor LEILAC 1, the LEILAC 2 project is based on Calix’s innovative calcination technology and is supported with € 16 million from the EU research funding programme Horizon 2020. As part of LEILAC 1, a CO2 separation pilot plant with a capacity of 25000 t/a was constructed at the HeidelbergCement plant in Lixhe/ Belgium. In LEILAC 2, a plant around four times this size is to be operated in a Heidelberg­Cement plant in Western Europe, which has yet to be determined. The project, including planning, construction, commissioning and extensive test runs, is scheduled to be completed by 2025. 

HeidelbergCement is a global leader in the development of innovative technologies for CO2 separation and use. In addition to LEILAC, the company is involved in a large number of other research projects – such as the “Northern Lights” project in Norway, or the German “Catch 4 Climate” project with cement industry partners. 

HeidelbergCement has committed itself to reduce its specific net CO2 emissions per tonne of cement by 30% compared to 1990 by 2030. This target has been approved by the Science Based Target initiative (SBTi) and is in line with the goals of the Paris Agreement, making HeidelbergCement the first cement company worldwide to have approved science-based CO2 reduction targets. By 2019, HeidelbergCement has already achieved a reduction of 22%. The company has announced that by 2030, 80% of its research and development budget will be spent on the development of sustainable products. HeidelbergCement will realise its vision of carbon neutral concrete by 2050 at the latest.

In January 2020, the internationally renowned Carbon Disclosure Project (CDP) awarded HeidelbergCement a place on the Climate Change A-List 2019, making it the only cement manufacturer to be recognized for its commitment to combating climate change.

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