Bright Renewables: Biogas upgrading and CO2 liquefaction technology
The biogas market is evolving rapidly, with project sizes increasing and innovative technologies gaining traction. At Bright Renewables, we observe a clear shift towards larger-scale plants and higher efficiency in gas upgrading. One notable development is the growing interest in liquid CO₂ (LCO₂) recovery, particularly in the UK and Scandinavia, where decarbonization targets and CO₂ utilization are driving demand. Additionally, new markets such as Spain are emerging, offering fresh opportunities for biomethane deployment. On the technology front, the introduction of 11-inch membrane modules marks a breakthrough in capacity and cost-effectiveness, enabling higher flow rates to be processed in a single line. As an early adopter of these advanced systems, Bright Renewables is helping drive the industry’s next phase by supporting larger-scale projects, improving efficiency, and creating new value opportunities from biogas.
Biogas upgrading and CO2 liquefaction technology.
The PurePac is our well-proven biogas upgrader to purify biogas. Biogas upgrading is a very attractive alternative compared to using a combined heat and power (CHP) system that generates electricity and heat. Our range of PurePacs for biogas upgrading is an essential add-on for all types of new and existing biogas plants in any industry. Additionally, our CO2 liquefaction system can be added for the production of liquid food-grade bioCO2 further boosting the efficiency of the biogas upgrading process and improving the carbon intensity (CI) score.
Bright’s CO2 liquefaction system, the CarboPac-L, recovers the CO2 from the biogas upgrading process or from the carbon capture process and converts it into liquid bioCO2. It stands out by using CO2 as a refrigerant, avoiding Freon or Ammonia. Designed as a containerized, plug-and-play solution, it ensures swift on-site installation and startup. This technology is an essential add-on for biogas upgraders or carbon capture systems.
Bright Renewables delivers high-efficiency systems for biogas upgrading, and CO₂ liquefaction, supporting the global transition to renewable gas with reliable, modular solutions.
How this supports the industry and addresses key challenges:
With in-house engineering and proprietary membrane technology, Bright ensures ≥ 99.5% methane purity and minimal methane slip. Our CO₂ liquefaction units recover food-grade CO₂, improving carbon intensity scores and creating new value streams. Prefabricated systems enable fast deployment and high uptime, while 24/7 service ensures long-term reliability. Bright empowers biogas plant operators to reduce emissions, meet renewable gas standards, and scale efficiently.
