Heirloom to market lime-based DAC technology
US technology company signs MoU to use calcination process initially developed to abate cement industry emissions
US technology company Heirloom plans to market the first direct air capture (DAC) system using a CO₂ separation process initially used to abate emissions in the cement industry. Heirloom, the backers of which include Bill Gates’ Breakthrough Energy Ventures, has signed a memorandum of understanding (MoU) with US decarbonisation company Leilac to use its electric kiln technology under licence in a lime-based DAC process. Heirloom’s process uses lime in a novel carbonation process to directly capture CO₂ from the air and form limestone. This process accelerates the natural binding of CO₂ and lime from a period of years to just three days. After binding, the reformed limestone is fed back into

Also in this section
18 February 2025
Demand for CCS to abate new gas-fired plants is rising as datacentres seek low-carbon power, Frederik Majkut, SVP of industrial decarbonisation, tells Carbon Economist
11 February 2025
Rising prices have added to concerns over CBAM impact on the competitiveness of EU manufacturing
7 February 2025
Norwegian energy company slashes spending on low-carbon sectors as transition decelerates
30 January 2025
The UAE’s oil and gas company puts its faith in technologies including CCS and AI to deliver its emission-reduction goals