Jan 8, 2026 · 32 min · 12 segments
An audio reading of the feature articles from the January 2026 issue of Gas Compression Magazine. This month's features include: Europe's Largest BECCS Plant Takes Shape (Begins At 01:08) Faster…
Danny FelberHost
Stockholm Exergy's Vardaverket plant targets 800,000 mtpa of biogenic CO2 removal, by B. Henry Henderson.
Stockholm Exergy is building one of the world's largest facilities for bioenergy with carbon capture and storage, known as BECCS, at its Vardarverket plant in Sweden.
The project is a key component of the European Union's climate strategy, designed to reduce negative emissions by capturing biogenic CO2 and storing it permanently under the seabed.
Upon completion, the facility will capture and permanently store 800,000 MTPA of biogenic CO2, which is more than the total emissions from Stockholm's road traffic during the same period.
The captured CO2 will be permanently removed from the atmosphere, creating negative emissions that will help achieve climate neutrality goals.
The plant will use CO2 capture technology from Capsule Technologies and CryoCap LQ liquefaction technology from Air Liquide to process the flue gases.
The CryoCap unit supplied by Air Liquide will be one of the largest in the world, with a capacity of 3,858 tons per day.
The progress of Stockholm Exergy's BECCS project paves the way for other biomass-fired power plants across Europe and North America, for we experience increased interest in our technology, said Wendy Lam, CEO of Capsule Technologies.
We are pleased to deepen our research and development collaboration with our partners to drive further performance improvements.
The captured CO2 will be compressed, liquefied, and then transported for permanent storage, The plant will be equipped with an Everland's electrically-driven MAX-1 compressor train for handling the flue gas.
The compressor train includes an AG-110 axial compressor and an EN-080 axial expander.
This project marks a major step toward industrial-scale carbon removals, said Dr. Hugh Lauber, CEO of Everland's.
By enabling the permanent storage of biogenic CO2, the facility supports Sweden's ambition to become climate-positive by 2030 and serves as a scalable model for urban carbon removal worldwide.
The Vardavirket combined heat and power plant is already fueled by renewable forest residues, including wood chips, branches, and tops from the forestry, sawmill, and pulp and paper industries.
By capturing the plant's biogenic CO2 emissions and permanently storing it in the geosphere, the carbon flow is reversed, and a carbon sink is formed.
CO2 that was previously circulating between the atmosphere and trees will now be withdrawn from the atmosphere, directly contributing to cooling of the atmosphere.
To accomplish this, the CO2 in the flue gases of the bioenergy CHP must be captured.
Based on careful assessment and previous experience of carbon capture, Stockholm Exergy has chosen to work with hot potassium carbonate technology.
The flue gas with the CO2 meets a solvent liquid, which mostly consists of water and potassium carbonate.
Pressurized potassium carbonate reacts with CO2 and H2O, which forms potassium biocarbonate.
When the potassium biocarbonate pressure is lowered, the reaction goes in the opposite direction, releasing CO2 and H2O.
After the capture process, the biogenic CO2 will be purified and then liquefied.
Stockholm Exergy's Vardaverket plant targets 800,000 mtpa of biogenic CO2 removal, by B. Henry Henderson.
Stockholm Exergy is building one of the world's largest facilities for bioenergy with carbon capture and storage, known as BECCS, at its Vardarverket plant in Sweden.
The project is a key component of the European Union's climate strategy, designed to reduce negative emissions by capturing biogenic CO2 and storing it permanently under the seabed.
Upon completion, the facility will capture and permanently store 800,000 MTPA of biogenic CO2, which is more than the total emissions from Stockholm's road traffic during the same period.
The captured CO2 will be permanently removed from the atmosphere, creating negative emissions that will help achieve climate neutrality goals.
The plant will use CO2 capture technology from Capsule Technologies and CryoCap LQ liquefaction technology from Air Liquide to process the flue gases.
The CryoCap unit supplied by Air Liquide will be one of the largest in the world, with a capacity of 3,858 tons per day.
The progress of Stockholm Exergy's BECCS project paves the way for other biomass-fired power plants across Europe and North America, for we experience increased interest in our technology, said Wendy Lam, CEO of Capsule Technologies.
We are pleased to deepen our research and development collaboration with our partners to drive further performance improvements.
The captured CO2 will be compressed, liquefied, and then transported for permanent storage, The plant will be equipped with an Everland's electrically-driven MAX-1 compressor train for handling the flue gas.
The compressor train includes an AG-110 axial compressor and an EN-080 axial expander.
This project marks a major step toward industrial-scale carbon removals, said Dr. Hugh Lauber, CEO of Everland's.
By enabling the permanent storage of biogenic CO2, the facility supports Sweden's ambition to become climate-positive by 2030 and serves as a scalable model for urban carbon removal worldwide.
The Vardavirket combined heat and power plant is already fueled by renewable forest residues, including wood chips, branches, and tops from the forestry, sawmill, and pulp and paper industries.
By capturing the plant's biogenic CO2 emissions and permanently storing it in the geosphere, the carbon flow is reversed, and a carbon sink is formed.
CO2 that was previously circulating between the atmosphere and trees will now be withdrawn from the atmosphere, directly contributing to cooling of the atmosphere.
To accomplish this, the CO2 in the flue gases of the bioenergy CHP must be captured.
Based on careful assessment and previous experience of carbon capture, Stockholm Exergy has chosen to work with hot potassium carbonate technology.
The flue gas with the CO2 meets a solvent liquid, which mostly consists of water and potassium carbonate.
Pressurized potassium carbonate reacts with CO2 and H2O, which forms potassium biocarbonate.
When the potassium biocarbonate pressure is lowered, the reaction goes in the opposite direction, releasing CO2 and H2O.
After the capture process, the biogenic CO2 will be purified and then liquefied.
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