Oxygen Gas Generators PSA
On-Site PSA Oxygen Generators
Gas Generation Solutions designs and installs on-site PSA oxygen generation systems for industrial, agricultural, and medical applications. Our oxygen generators produce purity from 95% up to 99%, with most industrial users operating at 93% to 95%. We have been in business since 1979, with over 40 years of experience engineering nitrogen and oxygen systems for customers across the United States, Mexico, and Canada. Most systems pay for themselves in 12 to 14 months.
How PSA Oxygen Generators Work
PSA oxygen generators produce high-purity oxygen from compressed air. Compressed air passes through a molecular sieve that selectively adsorbs nitrogen, carbon dioxide, and other trace gases, leaving behind oxygen-rich gas.
The adsorption process occurs at high pressure. When pressure is reduced, the adsorbed gases are released. Two sieve beds alternate this cycle so oxygen is produced continuously. This process is called pressure swing adsorption (PSA).
Produced oxygen is stored in a buffer tank, ready for use across a range of industrial applications.
PSA Oxygen Gas Generator
Applications of PSA Oxygen Gas Generators
On-site oxygen generators serve a wide range of industries. Common applications include:
- Dairy Farming Digesters: Oxygen is injected into anaerobic digesters to support biological desulfurization, removing hydrogen sulfide (H2S) from biogas before it reaches engines or upgrading equipment.
- Veterinary Clinics: On-site oxygen generators supply medical-grade oxygen for anesthesia and respiratory support, eliminating cylinder deliveries and rental fees.
- Wastewater Treatment: Oxygen is dissolved into wastewater to promote aerobic bacteria growth, breaking down organic matter and removing impurities more efficiently than ambient aeration.
- Biogas Production: Controlled oxygen dosing supports H2S removal in biogas systems at landfills, food waste digesters, and agricultural operations.
- Glass Blowing: On-site oxygen provides a consistent, high-flow supply for torches, replacing cylinder deliveries and ensuring uninterrupted production.
- Oil and Gas Production: Oxygen is used to improve combustion efficiency and support enhanced oil recovery processes.
- Medical: PSA oxygen generators produce oxygen for respiratory therapy and anesthesia in hospitals and clinics.
- Pharmaceutical: Oxygen is used in pharmaceutical manufacturing processes including fermentation and oxidation reactions.
- Petrochemical: PSA oxygen generators support refining and processing operations where a reliable oxygen supply is required.
- Food and Beverage: Oxygen is used in wine and beer production, aquaculture, and other food processing applications.
Cost Savings and Payback
On-site oxygen generation eliminates cylinder rental, delivery fees, and supply interruptions. The cost per cubic foot of oxygen from a PSA generator is significantly lower than delivered oxygen in any form.
Most customers recover their full investment in 12 to 14 months. After payback, oxygen is produced at a low, predictable operating cost for the life of the system.
Get Started with Oxygen Generation
Contact us to discuss your oxygen requirements. We offer free flow meter rental and will provide a detailed cost analysis and quotation within 24 hours. Call 760-505-1300 or email sales@gasgenerationsolutions.com.
Frequently Asked Questions
How does a PSA oxygen generator work?
A PSA oxygen generator passes compressed air through a molecular sieve that selectively adsorbs nitrogen, carbon dioxide, and trace gases. At high pressure, these gases bind to the sieve material. When pressure drops, the adsorbed gases are released. The remaining gas, which is oxygen, flows into a buffer tank ready for use. Two sieve beds alternate so oxygen is produced continuously.
What purity can your oxygen generators produce?
Our oxygen generators produce purity from 95% up to 99%, depending on the application. Most industrial users operate at 93% to 95%.
How long is the payback period for an oxygen generator?
Most customers achieve full payback in 12 to 14 months. Payback depends on current oxygen spending, local electricity rates, and system size.
What is the cost per cubic foot of on-site oxygen?
On-site oxygen typically costs $0.10 to $0.25 per hundred cubic feet (CCF), depending on local electricity rates and required purity. This is significantly lower than cylinder or bulk liquid delivery.
What maintenance does an oxygen generator require?
Oxygen generators require inlet air filter changes on a regular schedule, occasional valve inspection, and optional oxygen analyzer calibration. No maintenance contract is required. Annual filter costs run a few hundred dollars depending on system size.
Which industries use oxygen generators?
Common applications include dairy farm digesters, wastewater treatment, biogas production, glass blowing, medical oxygen supply, pharmaceutical production, petrochemical refining, food and beverage processing, and veterinary clinics.
Do I need special training to operate an oxygen generator?
No. Our systems are designed for straightforward operation. We provide documentation and support at startup. Most facilities integrate oxygen generation into existing operations with minimal additional training.
Can you size an oxygen generator for my application?
Yes. Provide your required oxygen flow rate (in CFM or SCFH), pressure, and purity. We will email a complete proposal within 24 hours. We also offer free flow meter rental with data loggers if you need to measure current oxygen consumption. Call 760-505-1300 or email sales@gasgenerationsolutions.com.
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