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Project LEILAC

Enabling process CO2 separation for lime and cement without capital or operating penalty

Visit the LEILAC website

Project LEILAC

LEILAC (Low Emissions Intensity Lime And Cement) is a European Union Horizon 2020 (H2020) research and innovation project.

Calix’s technology is being piloted with the world’s largest cement and lime companies to mitigate their carbon dioxide (CO2) emissions dramatically without significant energy or capital penalty.

Visit the LEILAC website

ABOUT LEILAC

LEILAC is piloting a breakthrough technology that will enable both Europe’s cement and lime industries to reduce their emissions while retaining, or even increasing international and cross sectorial competitiveness.

Carbon capture is not yet included in the available technologies for cement and lime.  The international and EU community recognises that CO2 emissions contribute to climate change, and the approach to reducing such emissions to-date for the cement and lime industries has been to increase kiln efficiencies and utilise alternative fuels. Once tested in LEILAC and scaled up, Direct Separation should reduce the costs of carbon capture considerably and accelerate the deployment in both industries.

Cement and lime production are responsible for the largest industrial CO2 emissions globally.

Calix’s Technology

Calix’s technology re-engineers the existing process flows of a traditional calciner, indirectly heating the limestone via a special steel vessel.

This unique system enables pure CO2 to be captured as it is released from the limestone, as the furnace exhaust gases are kept separate.

It is also a solution that requires no additional chemicals or processes, and requires minimal changes to the conventional processes for cement as it simply replaces the calciner.

Learn more about our technology.

LEILAC Partners

What it means for Cement and Lime

As two-thirds of CO2 emission from cement production is generated from the limestone itself, this technology offers a unique opportunity as it can capture these emissions without significant energy or capital penalty. The energy losses associated with Direct Separation technology are primarily heat losses in the equipment, and CO2 compression (for transport and storage).

It also enables the use of carbon capture techniques, have already been developed by the power sector to be applied to the heating emissions.

This innovation requires minimal changes to the conventional processes for cement, replacing the calciner in the Preheater-Calciner Tower. For lime there is no product contamination from the combustion gas. The technology has the potential to be used with alternative fuels and other capture technologies to reach the targeted 80 percent emission reduction in 2050.

Simon Thomsen, Calix Limited, on the economical benefits of the technology

Simon Thomsen, Calix Project Engineer explains how Calix applied its technology to the cement and lime industries, by increasing the temperature, and improving the efficiency, performance and operativity of the process.

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Mark Sceats, Calix Limited, on the evolution of the Calix technology

Mark Sceats, Calix Chief Scientist, discusses the evolution of the Calix Technology behind Project LEILAC and the value of a collaborative approach with industry “the involvement of industry is absolutely critical” he says.

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Phil Hodgson, Calix Limited, on the importance of partnerships

Phil Hodgson, Calix CEO and Managing Director, talks about the importance of partnerships and collaborations in the success of Project LEILAC and the development of the Calix technology.

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Jan Theulen, HeidelbergCement Group, shares an industry perspective

Jan Theulen shares an industry perspective on the impacts of the Carbon Capture and Storage (CCS) Technology being piloted by Project LEILAC. He describes the Calix Technology as a ground-breaking innovation that can help decarbonise the cement industry while remaining competitive in cement markets.

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