In this project Chalmers, Gothenburg University, Boliden, Höganäs, Nordic-DAC group, Klimpo and Torkapparater will investigate the removal of atmospheric CO2 through an innovative passive carbonation system.
Aims and goals
The aim of the project is to develop a low-cost “passive” DAC system that utilizes cheap alkaline by-products from industries such as mining, cement and construction, to capture CO2 from the atmosphere. The main goal is to develop a low-cost passive-DAC system using by-products from important industries in Sweden and globally, in order to achieve negative CO2 emission of carbon dioxide.
The proposed passive DAC system could lead to the capture and geological storage of 6 MtCO2/yr in Sweden and 2.9–8.5 GtCO2/yr globally. Using cheap alkaline by-products this concept can result in cost reduction of 30-85% compared to state-of-the-art direct air capture (DAC) systems.
The process
The proposed process is simple and can be implemented in a short period of time at a much lower cost, i.e., 30-85% lower, than what can be expected from other current DAC-systems. The process is of interest to society as a whole, but specifically, a range of Swedish industries are relevant for this application, e.g. mining, metallurgy and steel industry. Given the robustness of the technology, it is highly likely that after the end of the project the concept will be ready for commercialization and scale-up to multi-ton scale.
Benefits and knowledge dissemination
Further, the passive-DAC system could lead to several additional benefits for the mining and metallurgical industries, including valorization of by-products generated intrinsically in their production chains, which can be an important goal in itself. The use of by-products will also entail valorization and new markets for waste materials produced at large scale in Sweden.
Finally, we expect to generate new and important knowledge in a range of scientific areas, including chemistry, material science, energy technology and life cycle assessment, aspects which will be disseminated to stakeholders and to the academic community.
Timeline
The project runs from 2023-01-01 – 2027-12-31.
Funded by:
Swedish Energy Agency/Energimyndigheten
The European Union