Research project Sustainable, energy-efficient and emission-free CO₂ capture Solvents
This research project is developing sustainable and energy-efficient solvents for the capture of biogenic carbon dioxide (CO₂), supporting Sweden’s target of achieving net-zero greenhouse gas emissions by 2045 and enabling negative emissions in sectors where emissions are particularly difficult to abate.
The project is developing CO₂ capture systems based on immobilised enzymes and aminated particle dispersions, while also conducting comparative studies using potassium carbonate solutions. By immobilising amines on particles, the risk of toxicity is reduced and CO₂ capture can be achieved with lower energy consumption.
The research focuses on the design, synthesis and evaluation of solvents that offer high CO₂ capture capacity, low energy demand and reduced environmental impact. The most promising systems will be scaled up from laboratory to pilot scale and tested both in laboratory environments and in spray tower facilities at KTH.
The project aims to achieve Technology Readiness Level (TRL) 5 for the novel solvent systems and TRL 7 for the enzyme-based technologies. It is funded by the Swedish Energy Agency and carried out through a collaboration between Stockholm University, KTH Royal Institute of Technology, and industrial partners.