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Bright Renewables and Tekniska Verken to build Sweden's first biogas CCU facility

Dutch clean energy technology provider Bright Renewables has announced that it has won the technical tender from Swedish municipal multi-utility company Tekniska verken i Linköping AB for the supply of carbon dioxide liquefaction technology.

The system will be installed at the biogas plant of Tekniska verken, Svensk Biogas i Linköping AB (Svensk Biogas) to purify and liquefy carbon dioxide from biogas production.

The facility will produce 20.000 tons of food-grade bioCO 2 carbon dioxide and is expected to be completed before next summer 2025.

Liquefaction and utilization of carbon dioxide.

This project marks Sweden's first carbon capture and utilization (CCU) facility using biogas, improving resource efficiency by utilizing bio-based CO 2 from the existing process.

Carbon dioxide liquefaction technology provides environmental and operational advantages. CO 2 recovery from biogas upgrading prevents release to the atmosphere and reduces greenhouse gas (GHG) emissions.

Incorporating a CO2 blender into clean energy systems optimizes carbon intensity scores and increases efficiency. Using CO2 as a natural refrigerant in our system, a more environmentally friendly alternative to Freon and ammonia, improves sustainability. In biogas applications, it maximizes methane use and minimizes methane slippage.

In 2023, Tekniska verken made the decision to invest to build a facility to process biogenic carbon dioxide that is formed during the anaerobic digestion of food waste, slaughterhouse waste, etc., which is then removed during the production of biogas.

With Bright's innovative solution in place, we contribute to a circular economy, while reducing our methane emissions by recycling the methane that previously accompanied carbon dioxide into the process, said Anna Lövsén, business area manager biogas at Tekniska verken Group.

CO2 recovery from the biogas process

Although CO2 emissions from biogas production are already biogenic today, i.e. they do not contribute to any net emissions, the recovery of this carbon dioxide will have a positive climate effect.

This is because carbon dioxide from biogas plants can now replace fossil carbon dioxide on the market.

The goal is to certify the new facility to ISO 22000/FSSC 22000, as this is a requirement for food grade carbon dioxide. Today, carbon dioxide is used, among other things, for dosing in greenhouses, for cooling food, in fire extinguishers, as a process chemical in industry and for producing carbonated drinks, said Anna Lövsén.

Bright Renewables will be on October 1 and 2 at the 4th Renewable Gas Show

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