Can your biogas filtration stand the heat?
AirPure L
mobile gas filter with integrated cooling circuit
Filter up to 5,000 m³ of biogas per hour, even during the hottest summer peaks.
The AirPure L from Cargen is insulated and equipped with an integrated cooling system — unique on the market — ensuring stable performance even on the hottest days.
AirPure L handles up to 5,000 m³/h and maintains its efficiency even under the most demanding conditions.
- Stable process: optimal thermal conditions for effective adsorption, 24/7.
- Longer activated carbon lifespan: no thermal fluctuations, fewer filter replacements.
- Maximum adsorption: improved capture of VOCs (volatile organic compounds), even during temperature peaks.
Why is cooling so crucial in biogas upgrading?
Without thermal control, high ambient temperatures and temperature fluctuations (day/night differences) can lead to:
- Desorption: adsorbed VOCs being released again, recontaminating the gas stream.
- Blockages in the upgrading unit: re-released VOCs cause contamination of purification units.
- Temporary rejection from the gas grid: unstable output, due to the presence of VOCs, can result in rejected injection and thus significant revenue loss.
The AirPure L is designed for demanding applications, has a capacity of up to 5,000 m³/h, and features a fully insulated housing with a spiral-shaped cooling system running the full height of the filter.
Specifications
| Special feature | Insulated with cooling function |
| Max flowrate (m³/h) | 5.000 |
| Max pressure (bar) | 0,49 |
| Mass AC (ton) | 8 – 12 |
| Dimensions WxDxH (m) | 2,5 x 2,6 x 6,1 |
FAQ
Coolant circulates through a cooling spiral, allowing us to keep the internal temperature of the filter low and, above all, stable.
Yes, thanks to Cargen’s monitoring options, we can remotely track the purification process by continuously monitoring flow rates, pressure differences, etc. for you.
The main risks are desorption, resulting in contamination and blockages in the biogas upgrading unit, and potentially rejection from injection into the gas grid.