CO2 Recovery

Description

CO₂ recovery

In addition to the production of biomethane the Bright Biomethane systems may be used to recover and liquefy CO₂ to create an extra source of revenue for the plant owner. On top of this zero methane slip is achieved since the small amount of methane still present in the CO₂ in recovered during liquefaction. When no liquid CO₂ production is required the recovery system can be put in a stand-by mode that requires no additional energy.

Extra source of revenue!

By extending the Bright Biomethane system with a CO₂ recovery module the gaseous CO₂ that is produced during the upgrading can be liquefied. This liquid CO₂ has food grade quality and can be used in:

• Greenhouses
• Refrigeration installations
• Food and beverage industry
• Slaughterhouses

CO2 recovery technology: This is how we do it

Compressor

The CO₂ is compressed in a non lubricated two stage process compressor and passed through an automatic molecular sieve dryer to completely remove the moisture.

Filter

Then the CO₂ goes to the fine filter to remove any remaining odorant compounds/impurities as well as any remaining powders.

Liquefier

The purified gas is sent to the CO₂ liquefier; traces of non condensable gases still contained in the CO₂ gas remain gaseous while the CO₂ condenses in the liquefier.

Stripping tower

Any entrained non-condensables such as oxygen, methane and nitrogen are effectively removed in the stripping tower.

Pure liquid CO2

These non-condensable gases are used for regeneration of dryer; the pure liquid CO₂ flows to an insulated storage tank.

For more information, visit Bright Biomethane’s website.