CO2 liquefaction: natural refrigerant
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?
The process in 6 steps
- Removal of impurities from the CO2 using an activated carbon filter.
- The CO2 is compressed with an oil-free, multistage compressor.
- Any moisture is removed via an automatic molecular sieve dryer.
- Entering the liquefier; non-condensables remain gaseous as CO2 condenses
- Non-condensables are extracted as the CO2 is liquefied.
- Purified, liquid CO2 is stored in an insulated tank for various uses.
Product specifications
Process liquefaction
The CO2 liquefaction process starts with the purification of the carbon dioxide gas via an activated carbon filter, the CO2 is then compressed using an oil-free compressor. After moisture removal by a molecular sieve dryer, meticulously removing any moisture, the carbon dioxide is liquefied. In the liquefier, CO2 is separated from non-condensables such as oxygen, methane, and nitrogen. The purified, liquid CO2 is stored in an insulated tank for multiple applications, while non-condensables are recycled to enhance methane recovery up to 99%.
