Cryo Pur technology is adapted for biogas flow rate of 70 to 2,000 Nm3/hr. The undesirable components contained within biogas (H2O, H2S, COV, siloxanes, CO2) are captured through cryo-condensation, freezing each component for optimal biogas upgrading.
The CO2 is retrieved in liquid form, the extremely high level of purity enabling revalorization. Once purified, the biomethane fulfills the characteristics necessary to be injected into the natural gas grid. In order to be transported to a valorization site, or for use as fuel for HGV, biomethane is liquefied in the form of bio-LNG.
The key to Cryo Pur technology is that it performs all of these functions with minimal electric energy consumption, in the area of 0.5 kWh/Nm3 of raw biogas, for both upgrading and liquefaction.
Advantages of Cryo Pur cryogenic upgrading
Zero loss of biomethane
Optimal availability of the installation
Adaptable to high variations of biogas flow rate
Heat recovered from the refrigeration units reused for the digester
Pure biomethane product
Pure bioCO2 product
Advantages of Cryo Pur biomethane liquefaction
The separation of air gases (nitrogen and oxygen), allowing the valorization of landfill biogas
Minimal consumption of electric energy through the association of cryogenic upgrading and liquefaction