Leilac-2 gets a substantial update, including a lighter and simplified design that supports Leilac’s vision for low-cost decarbonisation solutions for cement and lime.

15 October, 2023: The Public FEED Study for Leilac-2 provides insights into the engineering of the demonstration plant that will be built at Heidelberg Materials’ cement plant in Hannover, Germany. The design aims to use fuels, processes, and efficiencies as close as possible to the host plant. The resulting design supports the project partner’s vision for low-cost decarbonisation, and a design that can be scaled to address all a cement plant’s process CO2 emissions. The key features of Leilac-2’s design now include:

  • Targeted capture capacity of 100,000 tonnes per year of >95% purity CO2
  • Four calciner tubes in one furnace chamber
  • A preheater string for heat transfer from flue gas
  • Fuel flexibility, with staged operations for natural gas, through to biomass and ambition for full alternative fuel (AF) use
  • Full heat integration with the plant, with safe material conveying
  • Use of typical cement plant equipment allowing for easy integration, operation, and maintenance.

In particular, the development of a replicable multi-tube module within one furnace chamber provides the basis from which Leilac can scale towards its full-scale vision.

The results presented in this study are illustrative, based on central European costs. Regional and plant specific analysis is provided through a scoping study. For further information, please: