About us
Capsol technologies at a glance
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Licensor of point source carbon capture technology
Carbon capture and heat recovery system in one
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Capsol’s post-combustion carbon capture and heat recovery system in one delivers superior efficiency with a proven and safe solvent. Key segments include cement, biomass, energy-from-waste and gas turbines.Â
Capsol’s technologies are applicable to all hard-to-abate industries and deliver superior performance throughout the entire carbon capture process, ensuring safe operations and industry-leading capture costs. Capsol’s solutions utilize the non-toxic and non-degradable solvent HPC, with superior HSE profile making permitting easier. The technology is licensed either directly to customers or through industrial partners globally.Â
VISION
To accelerate the world's transition to a net zero future
MISSION
Deliver energy-efficient and safe carbon capture technologies
The history behind Capsol's proprietary technologies
Capsol Technologies' carbon capture technologies are based on a chemical process using the safe solvent Hot Potassium Carbonate (HPC).  Â
HPC as a solvent has been used to capture carbon dioxide for many decades (pre-combustion), with hundreds of HPC plants in commercial operation in the chemical process industry.
The technology was initially invented and developed by the U.S. Bureau of Mines in the 1940s and 50s, with further developments made in the 1970s. It is a robust, non-degradable (in the presence of oxygen), easily accessible absorbent, and is field proven for medium to large scale processes.
The development of Capsol Technologies' proprietary HPC technology for post-combustion CO2 capture started in 2003.Â
The first successful tests of the technology were performed at the Värtan combined heat and power (CHP) plant in Stockholm, Sweden, in 2008. The tests performed at Värtaverket showed a high CO2 capture efficiency of >98%.
In 2016, Stockholm Exergi commissioned a new CHP plant KVV8, at Värtaverket, which is run on wood chips based on forestry residues such as tree branches and tops as the main fuel (i.e. the plant utilizes secondary biomass).
In July 2022, Stockholm Exergi signed a Patent License agreement for the use of Capsol's HPC technology for carbon dioxide capture at their plant KVV8. The facility has the potential of capturing 800,000 tons of CO2 per year, making it Europe's first large-scale plant with negative CO2-emissions when operational.
Capsol 's HPC process
The use of HPC for post-combustion (from flue gases) carbon-capture was, until recently, discarded as a viable option due to the high energy demand (and cost) required to pressurise the flue gas before it enters the absorber. To solve this, Capsol developed the CapsolEoP® (end-of-pipe) solution – a standalone, retrofit unit, with inherent heat recovery, which offers low capture cost and the flexibility to monetize heat and electricity in the capture process.
The capture unit can run on electricity only and there is no need to build an additional boiler for steam production.
Safe solvent
An increasing number of industrial facilities are aware of the advantages of using the safe and proven potassium carbonate (HPC) solvent - which is well-documented and used in thousands of plants globally in multiple industries, like lower capture and material costs, the solvent being widely available and no risk of harmful emissions. In addition, the solvent’s superior HSE performance eases permitting and limits supply chain risks.Â
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Standalone capture unit
Capsol’s pressurised absorber design uses less plot space than competing technologies, and the standalone solution allows for easy retrofit and requires no modifications or downtime at parent plant during installation, commissioning or maintenance. By using well-known components which already are in use in thousands of plants globally, plant lead times can be between 18 and 24 months.
