Bright Renewables - Biogas Upgrading - CO2 Liquefaction - Project Tilburg Netherlands

CO2 liquefaction: natural refrigerant

CO2 liquefaction technology using a natural refrigerant results in high-quality, pure liquid CO2 production for a wide range of industrial uses.
Bright Renewables CarboPac-L Grand - Biogas Upgrading - CO2 Liquefaction - Project Tilburg Netherlands

Natural refrigerant

By utilizing CO2 as a refrigerant during the CO2 liquefaction process, traditional synthetic refrigerants such as Freon or Ammonia are replaced. The different approach with CO2 as a refrigerant brings several benefits. Carbon dioxide is a natural refrigerant that is environmentally friendly as well as safe. Furthermore, this technology enhances the liquefaction efficiency, reducing operational expenses and increasing (bio)CO2 production capabilities. Additionally, the use of clean carbon dioxide also optimizes energy consumption, making it a more sustainable and cost-effective solution.

How does it work?

Infographic - CO2 Recovery Technology - Bright

The process in 6 steps

  1. Removal of impurities from the CO2 using an activated carbon filter.
  2. The CO2 is compressed with an oil-free, multistage compressor.
  3. Any moisture is removed via an automatic molecular sieve dryer.
  4. Entering the liquefier; non-condensables remain gaseous as CO2 condenses
  5. Non-condensables are extracted as the CO2 is liquefied.
  6. Purified, liquid CO2 is stored in an insulated tank for various uses.


Product specifications

CO2 purity
Optional liquid CO2 analyzer (20 ft. container)
Improvement CI score
CO2 as refrigerant
Optional heat recovery
CarboPac-L Mini
300-600 kg/hr
Liquid bioCO2
99.9% (food-grade)
40 ft. container + reboiler skid
Bright Renewables - Biogas Upgrading - CO2 Liquefaction - Project Tilburg Netherlands