Bolongaro et al. (2025): Prospective life cycle assessment of megatonne-scale direct air carbon capture and storage via calcium-looping
Vittoria Bolongaro, David Yang Shu, Noah McQueen, André Bardow, IN: ChemRxiv, https://doi.org/10.26434/chemrxiv-690cdd17a482cba1228796d2
Calcium-looping direct air capture is a mature technology that could contribute to the gigatonne-scale carbon removal industry. However, the environmental impacts and tradeoffs of its large-scale deployment have not been assessed. Here, the authors perform a prospective life cycle assessment of megatonne-scale calcium-looping DACCS systems, demonstrating removal efficiencies exceeding 80% for autonomous systems by 2030, and ranging from 85% to 96% by 2050, depending on the energy system.