Production of Biogas and Green Gas

Biogas is produced through the digestion of organic material, such as manure and other residual streams. During this natural process, microorganisms convert these substances into a mixture of methane (CH₄) and CO₂, with small amounts of other gases. Biogas is a raw form of energy and still contains impurities, which makes it unsuitable for direct use in the gas network.

Green gas is purified biogas, upgraded to natural gas quality. Impurities are removed, and the methane content is raised to nearly 100%, making it safe for use in:

• Heating homes and buildings

• Cooking

• Fuel for vehicles

In short: biogas is the raw material, and green gas is the usable end product.

At SFP Group, we efficiently convert biogas into green gas, produced entirely sustainably and circularly. This contributes to a clean energy supply and a greener future, while making optimal use of local residual streams.

Fun fact: residual streams that would otherwise go to waste are given a new purpose as energy for immediate use a smart step toward a circular economy.

Production of Bio-CO₂

Bio-CO₂ is a sustainable byproduct released during the production of green gas. Instead of letting this CO₂ escape, it is captured, purified, and reused as a valuable raw material, giving a natural residual stream a second life across various sectors.

Bio-CO₂ is used for, among other applications:

• Fertilizer in greenhouse horticulture: CO₂ enhances photosynthesis and supports crop growth. Using Bio-CO₂ results in a more efficient cultivation process with reduced reliance on fossil CO₂ sources.

• Refrigerant in the food industry: thanks to its clean and stable properties, Bio-CO₂ is suitable for cooling, freezing, and maintaining product quality.

The use of Bio-CO₂ contributes to a circular economy: residual streams are utilized, fossil CO₂ is replaced, and the overall CO₂ emissions of the chain are reduced. In this way, we make a tangible contribution to more sustainable energy and food production.