Ambient CO₂ Harvester (ACOHA)
The Ambient CO2 Harvester has the potential to capture millions of tonnes of CO2 from the atmosphere annually. This carbon dioxide can be used as feedstock in the beverage industry, greenhouses and fuels synthesis and/or can be stored permanently. The technology also has the potential to be deployed at different scales.
We have been developing this technology using innovative ideas and research in three areas:
- Formulation and selection of suitable liquid absorbents
- Development of a cost-effective absorber
- Design and development of an energy-efficient process for the regeneration of absorption liquid.
A diagram of the wetted wall column setup used to measure CO2 mass transfer
CSIRO’s Ambient CO2 Harvester based on cooling tower technology for contacting and use of an amino-acid based absorbent.
ACOHA in the media
Capturing global attention: Carbon capture, utilisation and storage – CSIRO
Direct air captures the path to emissions targets – CSIRO
