After developing several patents over a 10 year period, CO2 Capsol AS was established in 2014. Capsol's technology has a TRL (Technology Readiness Level) 9 for sungas projects and TRL 8 for power plants, incineration plants, WtE, and industrial facilities. (TRL 8 = technology proven to work in its final form, TRL 9 = technology it's in its final form and operated under a full range of operating mission conditions)

Capsol has created a patented carbon capture technology, EoP (End of Pipe). The Capsol EoP solution consists of a Hot Potassium Carbonate (HPC) absorbent and pressurized flue gas. This capture technology was successfully tested out in Stockholm at the Värtan power plant in 2008.

Capsol EoP is a patented post-combustion carbon capture solution using HPC - a method used to remove carbon dioxide from gas mixtures under high pressure (sometimes called carbon scrubbing). To capture the CO2 from the flue gas, it must be pressurized. This is usually very energy consuming, but the Capsol EoP technology has a patented energy recirculation which recycles most of the energy used for pressurizing the flue gas. Thus reducing costs. The flue gas is pressurized (CO2 partial pressure to 0.7 bara) to optimize energy consumption in the process.

During the process, the pressurized CO2-rich flue gas passes through the absorber and leaves it with 90-95% CO2 removed. The CO2 is then desorbed in a separate compartment. During the process, steam is recycled in the desorber, this improves the efficiency of the process as a whole.

Selling per unit

• Capsol EoP requires no downtime of the power plant or industrial facility during installation.
• Electrical energy consumption of ~0.7-1.5 GJ/tonnes CO₂ captured, depending on the composition and temperature of the flue gas (not including liquefaction). With no additional heat energy required
• Absorbent: Hot Potassium Carbonate (HPC) - non-toxic, inexpensive.
• Capsol EoP can run on electricity only, or a combination of electricity and steam. The benefit of being able to run on electricity only is that the capturing facility is independent of the mother plant.
• Stand-Alone Unit: Compact design. No interference with the existing facility.
• The chemical mixture used in the HPC process is based on potassium carbonate dissolved in water, together with a chemical activator, and a corrosion inhibitor, to decrease the corrosion rate of the material that comes into contact with the fluid.
• Capsol EoP carbon capture solution has a capture capacity of 2,5 million tonnes of CO2/year/unit with flue gas with CO2 concentrations of ~20%. Two or more units will operate in parallel for facilities with emissions of more than 2.5 million tons/year
• The critical component is the compressor's capacity. For compressors with a capacity of 450 kg/s, the CO2 content of 18-20 % in the flue gas and annual operating time of 8,000 hours gives a capture capacity of 2,5 million tonnes of CO2.

Capsol EoP solution can capture CO2 from any type of industrial facility with large emissions of carbon dioxide, such as power plants, process industries, refinery waste (pet-coke) and waste incinerators.

High purity CO2 is suitable for EOR, Chemicals and storage

Capsol EoP can also be used for BECCS (Bio-energy with carbon capture and storage) - the process of capturing and storing carbon dioxide emissions from facilities using bioenergy as fuel, hence creating negative emissions by removing carbon dioxide from the atmosphere.