PSA Oxygen • Biogas • Upgrading
Oxygen Generators for Biogas Plants & Biogas Upgrading
Biogas oxygen enrichment for higher efficiency & output
Reliable on-site oxygen for anaerobic digestion, H₂S desulphurisation, CHP combustion optimisation and biomethane upgrading. Our PSA oxygen systems give biogas operators a steady, on-site O₂ supply without liquid oxygen deliveries. The result is better process control, lower logistics risk and oxygen available exactly where the plant needs it.
Technical applications for biogas oxygen enrichment
Aerobic post-treatment
Controlled oxygen supports biological polishing steps and wastewater treatment around the biogas site.
Combustion optimisation
Stable O₂ supply helps operators tune burners, boilers, flares and CHP-related combustion processes.
H₂S desulphurisation
Micro-aeration can support biological conversion of hydrogen sulphide into elemental sulphur when dosage is carefully controlled.
Biomethane upgrading
On-site oxygen can be integrated around gas conditioning and upgrading packages where a controlled oxygen source is required.
Why choose on-site PSA oxygen for biogas plants?
- No recurring liquid oxygen deliveries or cylinder handling
- Continuous oxygen production matched to plant demand
- Compact skid design for new and existing biogas sites
- Remote monitoring options for stable 24/7 operation
- Typical ROI potential of 12–24 months depending on oxygen consumption and local energy costs
PSA oxygen biogas upgrading
A PSA oxygen system separates oxygen from ambient air and supplies the plant through buffer storage, pressure control and metered dosing. This supports predictable operation and helps reduce dependency on delivered gases.
From assessment to operation
Check biogas flow, oxygen demand, pressure and purity target
Define PSA oxygen generator, buffer tank, compressor and control package
Integrate with dosing, safety valves, sensors and plant PLC
Commission, train operators and optimise dosage based on process data
Oxygen production process
How the BERG Oxygen Generation System Is Configured
The final system is selected according to oxygen flow, target purity, required pressure, site conditions and the required level of process availability.
Engineering parameters
Technical Configuration of a Biogas Oxygen Skid
BERG can configure the oxygen generation system around process demand, installation conditions and automation requirements. Values that depend on the selected model or project are clearly identified below and must be confirmed during engineering.
- Oxygen purity
- Typically 90–95% O2, model-dependent
- Generator capacity
- Selected according to required Nm³/h oxygen flow
- Oxygen output pressure
- [Confirm for selected generator and process]
- Specific energy demand
- [Calculate for selected purity, pressure and load profile]
- Ambient temperature
- [Confirm indoor, outdoor or container operating range]
- Control system
- Automatic operation with project-specific PLC interface options
- Process monitoring
- Oxygen purity, pressure and optional flow monitoring
- Remote access
- [Available depending on control package]
- Maintenance interval
- [Confirm from selected model and operating conditions]
- Compressed-air quality
- Project-specific treatment; ISO 8573-1 class to be confirmed
- Installation concept
- Standalone, skid-mounted or containerized
- Conformity and standards
- [Confirm applicable CE requirements and project standards]
Do not publish project-specific pressure, energy-consumption, maintenance or conformity values until they have been confirmed by BERG engineering for the selected configuration.
FAQ: oxygen for biogas plant projects
Why do biogas plants use oxygen?
Biogas plants use oxygen for controlled micro-aeration, H₂S reduction, aerobic post-treatment, combustion support and selected upgrading processes.
What purity is typical?
Many PSA oxygen systems produce about 90–95% oxygen. The exact target depends on dosing, pressure and integration requirements.
Is oxygen better than air injection?
Oxygen avoids adding large volumes of nitrogen from air, so it can be useful where gas quality, dosing precision or downstream upgrading matters.
Can the system be added to an existing digester?
Yes. Most projects can be retrofitted with oxygen generation, storage, metering and safety equipment after an engineering review.
How is safety managed?
Safe design uses correct materials, ventilation, oxygen-compatible components, pressure protection, gas detection and interlocks.
What data is needed for a quote?
Useful data includes biogas production, H₂S level, target oxygen dosage, required pressure, operating hours and installation location.
External resource: Learn more about biogas from the International Energy Agency.
Plan your on-site O₂ supply for biogas Germany and Europe
Share your flow rate, purity target and operating profile. We will help define the right PSA oxygen system for your anaerobic digester or upgrading plant.
Contact engineering