Solutions for biogas and bioCO₂
For over 30 years, Air Liquide has been developing solutions for valorizing biogas from methane digesters. Through membrane purification, the biogas is separated into bio-CO₂ and biomethane. Various gas liquefaction technologies are then implemented to facilitate transport and use.
Air Liquide, a complete range for biogas and CO2
Discover our Biogas solutions
Biogas purification units
Air Liquide offers tailor-made biogas purification solutions with highest efficiency of the biogas purification and separation. Our membrane technologies effectively separate methane from CO₂.
The resulting biomethane can thus be injected into the natural gas network or used as a fuel for land and sea transport, for example. With an extraction rate of over 99.5%, our solutions contribute to optimal biogas recovery.
Technologies for biomethane liquefaction
Building on its expertise in industrial gases, Air Liquide offers complete biomethane liquefaction solutions. The requested cold production is a tailor made solution with the highest efficiency on the market.
The resulting bioLNG is a sustainable alternative to fossil fuels and opens up new prospects for the maritime and land transport sectors.
Biomethane liquefaction considerably reduces storage volume and offers significant logistical and economic advantages.
Bio-CO₂ liquefaction units
Air Liquide, a pioneer in biogas recovery, offers complete CO₂ liquefaction solutions. Our technologies capture and liquefy CO₂ from methanisation. Air Liquide warranties to achieve the quality from any biomass feedstock.
This high-purity bioCO₂ finds numerous applications in the food industry, agricultural production and various industrial processes. By valorising a natural resource, Air Liquide is contributing to the energy transition and having a biomethane circular economy.
A green gas that's good for the environment
Biomethane (or bioLNG after liquefaction) is a renewable energy source that plays a key role in decarbonising industry and heavy mobility. Derived from the digestion of organic matter (methanisation), it is considered CO₂-neutral as it does not contribute to the increase in the greenhouse effect.