Solarig

Biogenic CO₂: closing the carbon cycle

Through Biorig, our renewable gases division, we capture and recover the CO₂ generated during biomethane production, transforming it into a renewable source of carbon.

 
 

A renewable source of carbon

Biogenic CO₂ is carbon dioxide derived from organic matter and forms part of the natural carbon cycle. Although it is chemically identical to conventional CO₂, its origin is different: biogenic carbon has previously been absorbed from the atmosphere by biomass, whereas fossil carbon comes from resources that have been stored for millions of years.

Carbon origin
Biogenic CO₂

It comes from biomass and recently formed organic matter. It is part of the natural carbon cycle, as the carbon has previously been absorbed from the atmosphere.

Fossil CO₂

It comes from resources that have been stored for millions of years. Their use releases carbon that was previously outside the recent natural carbon cycle.

Applications of biogenic CO₂

Application

Food and beverage industry

Once purified and certified in accordance with the requirements of each application, biogenic CO₂ can be used for beverage carbonation, preservation using modified atmospheres and certain refrigeration processes.

Application

Agriculture and greenhouses

The controlled supply of CO₂ in greenhouses promotes photosynthesis and supports crop growth. Biogenic CO₂ can meet this demand using a source of carbon derived from the recovery of organic resources.

Application

Renewable fuels

Biogenic CO₂ can be combined with renewable hydrogen to produce synthetic fuels such as e-methanol, e-methane and other renewable hydrocarbons.

Biorig: molecules with industrial and regional value

Water-free production

The dry separation system selected by Biorig eliminates water consumption during the CO₂ capture stage, reducing the process's resource requirements.

High-purity CO₂

The separation carried out during upgrading enables Biorig's bioCO₂ to achieve a purity of 99.9%, making it suitable for food and pharmaceutical applications.

Energy-efficient capture

Biorig's CO₂ capture processes are designed to be energy efficient, using technologies that minimise energy consumption during the production phase.

Integration into the circular economy

Through a single process, Biorig's facilities transform organic waste into energy and agricultural resources.

Contributing to rural development

The production and recovery of biogenic CO₂ bring new industrial activities to biomethane plants and support the creation of local value chains.

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