On-Site Oxygen for the Renewable Energy Industry — ON2 Systems

Oxygen for Biogas & RNG H₂S Desulfurization

Biogas and Renewable Natural Gas (RNG) producers use controlled oxygen injection to drive biological desulfurization — removing corrosive hydrogen sulfide (H₂S) from the gas stream continuously, without the recurring cost of chemical dosing and downstream media. ON2 containerized oxygen plants deliver the 90–95% purity this process requires, generated on site from ambient air, protecting engines, upgraders, and pipelines from H₂S corrosion.

The ON2 Advantage

Conventional PSA oxygen generators consume roughly 30–40% of the oxygen they produce just to keep running — delivering only 60–70% of rated output — typically require an air dryer to protect the sieve bed, and often need a pressure booster to reach usable outlet pressure. ON2's patented process delivers 100% of rated output, uses 20–40% less electricity than a typical PSA plant, requires no air dryer, and reaches full delivery pressure natively with no booster. A vacuum sweep purges heat, humidity, and contaminants every 100 seconds, and the self-cleaning sieve bed has run 20+ years in the field without replacement. Every claim is verifiable at your flow meter, power meter, and outlet.

Specifications

Frequently Asked Questions

Why do biogas and RNG plants need on-site oxygen?

Controlled oxygen injection drives biological desulfurization — removing corrosive hydrogen sulfide (H₂S) from the gas stream continuously, without the recurring cost of chemical dosing and downstream media like activated carbon. The oxygen plant isn't overhead; it replaces a chemical bill and protects engines, upgraders, and pipelines from H₂S corrosion.

Is on-site oxygen generation safe at a combustible-gas facility?

Yes — the system is engineered for combustible-gas sites. Oxygen is generated from ambient air on demand, so there is no stored oxygen and no pressurized oxygen inventory near your gas train. Conditions inside the container — CO₂ and oxygen levels, ventilation status, and temperature — are monitored in real time, so operators can confirm at a glance that no hazard is building up.

How is ON2 different from a conventional PSA oxygen generator?

Conventional PSA plants consume roughly 30–40% of the oxygen they produce just to keep running, typically require an air dryer to protect the sieve bed, and often need a booster to reach usable outlet pressure. ON2's patented process delivers 100% of rated output, uses 20–40% less electricity, requires no air dryer, and delivers full pressure natively — no booster. Every one of those claims is verifiable at your flow meter, power meter, and outlet.

What oxygen purity and delivery pressure do ON2 plants provide?

ON2 systems deliver 90–95% oxygen purity with adjustable delivery pressure from 0 to 50 psi, matched to your desulfurization process requirements.

Can the system operate outdoors in extreme climates?

Yes. ON2 containerized plants are fully climatized and the same platform operates from −50°C to +50°C — with field installations running in environments from sub-arctic Canada to extreme heat in India.

How is the plant monitored?

Every ON2 plant continuously monitors the conditions inside its own container — CO₂ and oxygen levels, ventilation status, temperature, and oxygen purity. Your operators see it all in real time on a panel at their workstation or on a phone, so any potential hazard is visible before it becomes an issue.

Where are ON2 oxygen plants manufactured?

Every ON2 system is built in US production facilities. ON2 has been building oxygen systems since 1984.

What maintenance does an ON2 oxygen plant require?

A scheduled preventive maintenance visit every six months, performed by ON2 — the same PM program we run for our hospital customers. Beyond that, there is no air dryer to maintain and no sieve replacement cycle: the self-cleaning sieve bed design has run 20+ years in the field without replacement. ON2 services what it builds, for the life of the plant.