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The potential capture capacity is about 100,000 tons of CO2 per year.
To minimize the use of fossil energy for carbon capture, the project will also test the use of alternative fuels and electric power.
The LEILAC 2 (Low Emissions Intensity Lime And Cement) carbon capture project has entered its implementation phase. Together with the Australian technology company Calix and a European consortium, HeidelbergCement will proceed with the construction of an integrated demonstration facility at the HeidelbergCement plant in Hannover (Germany).
With the patented LEILAC technology, CO2 released during cement production can be captured in a high-purity form via a separate waste gas stream and used in other processes. As minimal additional energy is needed and no chemicals are required, it is particularly cost-effective. In addition, the technology can be adapted in a modular fashion to any scale and use any fuel or energy source, including biomass, hydrogen or electricity, making it a "future-proof" solution.
Once the technology has been successfully tested, a second step will be taken, taking into account the site conditions in Hannover and the CO2 quality requirements for further use. The site is also optimally located to enable the transport of the captured CO2 for further use or offshore storage.
Heidelberg Cement aims to achieve a CO2 reduction of up to 10 million tons by 2030 with several CCUS projects.
Construction is planned for 2023. The scope of the LEILAC 2 project also includes a comprehensive analysis of the possible fate of the captured CO2, either for further use or for safe offshore geological storage.