PSA-O2 Generator
PSA-O2 Generator is a compact, skid-mounted pressure swing adsorption oxygen generation system engineered for dependable VPSA oxygen supply in small to medium production capacities. Built by Beijing Peking University Pioneer Technology Corporation Ltd. as a state-recognized high-tech enterprise specializing in VPSA and PSA gas separation, the PSA-O2 Generator delivers oxygen for industrial users that prioritize stable operation, simple maintenance, and energy-saving performance.
Proven Engineering for Reliable VPSA Oxygen Generation
Engineered and tested across extensive oxygen equipment deployments and backed by deep R&D and manufacturing capability in adsorbents, catalysts, and complete equipment sets, this PSA oxygen generator is designed to meet a wide range of oxygen demand profiles. It supports continuous oxygen delivery through an oxygen buffer tank and an adsorption and desorption cycle optimized for practical uptime, streamlined equipment count, and reduced operating cost.
With a strong track record designing and constructing hundreds of large and medium VPSA and PSA gas separation and purification plants and projects, PKU Pioneer applies proven process know-how, proprietary materials, and field-validated engineering to deliver reliable VPSA oxygen generation for industries including water treatment, kiln combustion, pulp bleaching, aquaculture, medical applications, and more.
Key Features & Specifications
Technology Brief
There has been a growing demand for small and medium-sized oxygen equipment with rapid development of the national economy in recent years. PKU PIONEER, seizing this market opportunity with its advanced technology and engineering experience of more than 300 sets of oxygen equipment, has produced the customized the new skid-mounted PSA oxygen equipment through its continuous development and innovation. The PSA-O2 generator meets a wide range of requirements for users in need of small and medium-sized oxygen equipment. It has remarkable advantages on its stability, simplicity, efficiency and energy saving.
Production Capacity
50Nm3/h-450Nm3/h, equivalent to liquid oxygen of about 1.7 TPD – 15.4 TPD.
Typical Applications
The PSA-O2 generator is widely used in water treatment, flue gas ozone denitrification, kiln combustion, pulp bleaching, aquaculture, medical .
and other fields.
Technical Advantages
Advanced Single-vessel Process
Utilizes a world-leading single-vessel design that reduces equipment complexity while delivering more stable performance, along with easier operation and maintenance compared to traditional double-vessel systems.
High-Efficiency Lithium-Based Molecular Sieve
Adopts third-generation PU-8 lithium molecular sieve with over 99% ion exchange rate, ensuring high selectivity, strong durability, uniform structure, and long service life for consistent oxygen production.
Dedicated Oxygen Generation Valves
Equipped with specially designed valves for VPSA systems, featuring reliable sealing, rapid switching, stable operation, and low failure rates for easier long-term maintenance.
Modular Integrated Design
Compact modular structure significantly reduces footprint, cutting installation area by over 20% while improving system integration and layout efficiency.
Low Operating Cost
Achieves low power consumption of 0.29–0.32 kWh/Nm³, with maintenance costs reduced by around 30% and overall operating costs lowered by more than 50% compared to conventional PSA systems or liquid oxygen supply.
Intelligent Control System
Integrated PLC-based control enables automated operation, real-time monitoring, and precise load adjustment, ensuring stable oxygen output with minimal manual intervention.
PSA-O2 Generator Technical Parameters
PSA-O2 Generator Parameters with Oxygen Purity of 90% are listed below.
| Model | Oxygen yield | Load adjustment range | Water Consumption | Power Consumption | Plot area |
|---|---|---|---|---|---|
| Nm3/h | % | t/h | KWh/m3 | m2 | |
| ZO-50 | 50 Nm3/h ～1.7 TPD | 50%~100% | 7 | Chat with us for details | 26 |
| ZO-100 | 100 Nm3/h ～3.4 TPD | 50%~100% | 12 | Chat with us for details | 39 |
| ZO-150 | 150 Nm3/h ～5.1 TPD | 50%~100% | 17 | Chat with us for details | 54 |
| ZO-200 | 200 Nm3/h ～6.8 TPD | 50%~100% | 21 | Chat with us for details | 65 |
| ZO-250 | 250 Nm3/h ～8.6 TPD | 50%~100% | 26 | Chat with us for details | 83 |
| ZO-300 | 300 Nm3/h ～10.3 TPD | 50%~100% | 28 | Chat with us for details | 83 |
| ZO-320 | 320 Nm3/h ～12 TPD | 50%~100% | 30 | Chat with us for details | 87 |
| ZO-400 | 400 Nm3/h ～13.7 TPD | 50%~100% | 40 | Chat with us for details | 109 |
| ZO-450 | 450 Nm3/h ～15.4 TPD | 50%~100% | 47 | Chat with us for details | 124 |
Technical Principle
Adsorption process: the pressurized ambient air is passed through the adsorption vessel, where the impurity gases, predominantly nitrogen, are preferentially adsorbed by the molecular sieve. Oxygen is enriched at the top of the adsorption vessel, then enters an oxygen buffer tank to supply oxygen to the downstream. Desorption process: after the molecular sieve is saturated by adsorption, the valve is switched to allow the blower to reverse act and vacuumize, thus restoring the adsorption capacity of the molecular sieve. In this stage, oxygen is continuously supplied to the downstream from the oxygen buffer tank.
Key Benefits & Competitive Advantages
Stable, VPSA oxygen supply that reduces dependence on delivered liquid oxygen for small and medium oxygen demand.
Skid-mounted modular integration supports faster installation planning, simplified site layout, and compact footprint with plot area reduced by more than 20% compared with conventional double-vessel process.
Advanced single-vessel process reduces equipment count while improving stability and making operation and maintenance easier than traditional double-vessel designs.
High-performance oxygen separation enabled by third generation high-efficiency lithium-based oxygen generation molecular sieve PU-8 with lithium ion exchange rate over 99% and engineered bed stability through proprietary automatic filling technology.
Industrial-grade switching and sealing performance enabled by special valves designed for oxygen generation, supporting fast switching speed, stable performance, low failure rate, and easy maintenance.
Lower operating cost supported by oxygen power consumption as low as 0.29～0.32kWh/Nm3 and reduced annual maintenance cost relative to common PSA oxygen generators.
Continuous oxygen delivery behavior supported by oxygen buffer tank supply during desorption stage, helping stabilize downstream oxygen use.
Broad application fit validated by typical cases across CO2 generation, glass processing, and ozone production, plus widespread use in water treatment and process industries.
Application Scenarios & Use Cases
| Scenario | Industry | Key Benefit | Why This Product |
|---|---|---|---|
| Oxygen supply for ozone generation | Iron and steel | Improves ozone generator feed stability and supports consistent treatment results | Proven case reference for ozone production and oxygen buffer tank supported continuous supply behavior |
| Flue gas ozone denitrification oxygen feed | Environmental protection | Supports stable oxygen availability for ozone-based NOx control | Widely used in flue gas ozone denitrification and designed for energy-saving operation |
| Kiln oxygen-enriched combustion | Building materials and industrial heating | Supports combustion optimization with dependable oxygen delivery | Compact skid-mounted package and stable PSA process support variable operating schedules |
| Pulp bleaching oxygen supply | Pulp and paper | Enhances process continuity with VPSA oxygen generation | Typical application fit and load adjustment range of 50%~100% across models |
| Aquaculture oxygenation | Aquaculture | Improves dissolved oxygen management and operational reliability | Suitable for continuous oxygen generation with scalable capacities from 50 to 450 Nm3/h |
| Glass processing oxygen use | Glass and fiberglass | Supports stable oxygen supply for process performance and quality | Typical case reference for glass processing and compact integrated system design |
| CO2 generation oxygen plant integration | Industrial gases and process utilities | Provides oxygen for CO2-related processes requiring stable VPSA supply | Typical case reference for CO2 generation oxygen plant |
| Medical oxygen supply for institutional use | Medical and healthcare support | Provides VPSA oxygen generation for facility-level demand | Listed medical field applicability with stable, automated oxygen supply structure |
Typical Cases
12,500 Nm³/h VPSA Oxygen Plant for Changjiang Steel
PKU Pioneer successfully commissioned a 12,500 Nm³/h VPSA oxygen plant for Changjiang Steel, helping reduce liquid oxygen dependence and significantly lower blast furnace oxygen enrichment costs. The project was completed in just 73 days and delivers daily savings exceeding $14,285, further strengthening energy efficiency and cost competitiveness for large-scale steel production.
12,500 Nm³/h VPSA Oxygen Plant for Copper Smelting
PKU Pioneer successfully commissioned a 12,500 Nm³/h VPSA oxygen plant for Wuxin Copper, helping eliminate oxygen supply bottlenecks and improve oxygen-enriched smelting efficiency. The project significantly reduced oxygen production costs, enhanced automation capabilities, and supported the customer’s capacity expansion and green metallurgy upgrade.
Blast Furnace Oxygen Enrichment PSA Project
PKU Pioneer successfully commissioned a second-phase 14,000 Nm³/h PSA oxygen plant for Chifeng Yuanlian Iron & Steel, expanding total oxygen generation capacity to 28,000 Nm³/h. The project significantly reduced oxygen production costs, improved operational flexibility, and supported the steel mill’s energy-saving and low-carbon transformation goals.
Competitive Comparison
| Feature/Aspect | This Product | Typical Alternative |
|---|---|---|
| Skid-mounted modular integrated design | ✓ | ✗ |
| Advanced single-vessel PSA process | ✓ | ✗ |
| Equipment count and complexity | Lower | Higher |
| Footprint and plot area | Reduced by more than 20% | Larger |
| Molecular sieve technology | High-efficiency lithium-based PU-8 with over 99% lithium ion exchange rate | Often lower-performance or older-generation sieve |
| Valve suitability for oxygen generation | Special valves with good sealing and fast switching | General-purpose valves with higher failure risk |
| Energy consumption of oxygen | As low as 0.29～0.32kWh/Nm3 | Typically higher for common PSA oxygen generators |
| Annual maintenance cost | 30% lower than common PSA oxygen generator | Higher |
| Total annual comprehensive operation cost | Reduced by more than 50% compared with common PSA or liquid oxygen purchase | Higher |
| Oxygen supply continuity during regeneration | Continuous supply supported by oxygen buffer tank | Often less stable without buffer optimization |
Start Your System Design
Reduce dependency on external supply and stabilize your production with VPSA oxygen generation.
Solutions for All Your Oxygen Usage Scenarios
Every sector has unique gas needs. We engineer solutions that fit.
Technology & Design Highlights
Single-Vessel PSA Architecture for Stability and Simplicity
The PSA-O2 Generator uses an advanced single-vessel process engineered to reduce system complexity and stabilize oxygen production behavior. By requiring less equipment than traditional double-vessel processes, the design supports easier operation and maintenance, improved reliability in daily industrial use, and more compact system packaging for constrained sites.
Oxygen-Specific Valve Selection and Switching Reliability
Special valves for oxygen generation are selected to deliver good sealing, fast switching speed, and stable performance. This valve system supports low failure rate and easier maintenance, improving overall plant availability and reducing life-cycle service burden in continuous industrial duty.
High-Efficiency Lithium-Based Molecular Sieve PU-8 and Bed Stability Engineering
Separation performance is driven by the third generation high-efficiency lithium-based oxygen generation molecular sieve PU-8 with lithium ion exchange rate over 99%. Material advantages include high strength, high nitrogen and oxygen selectivity, large bulk density, uniform particle characteristics, and long service life. In combination with proprietary automatic filling technology, the molecular sieve bed stability is effectively guaranteed for repeatable cyclic performance.
Adsorption and Desorption with Buffer Tank Supply Logic
During adsorption, pressurized ambient air passes through the adsorption vessel where nitrogen is preferentially adsorbed, enriching oxygen at the top of the vessel. Oxygen is sent to an oxygen buffer tank to supply downstream. During desorption, the blower reverses and vacuumizes to restore adsorption capacity, while oxygen continues to be supplied from the oxygen buffer tank, supporting stable oxygen delivery through switching transitions.
Industry Compliance & Quality Assurance
Beijing Peking University Pioneer Technology Corporation Ltd. is a state-recognized high-tech enterprise specializing in research and development of VPSA and PSA gas separation and energy-saving and environmental protection technologies, as well as the design, manufacture and engineering construction of complete sets of equipment. The company operates with a dedicated R&D ecosystem including a R&D center, pilot base, adsorbent and catalyst production bases, and a Beijing key laboratory of engineering platform, supporting continuous improvement from materials science through equipment delivery.
Relying on academic and engineering collaboration with Peking University chemistry and molecular engineering resources and a jointly established R&D platform, PKU Pioneer maintains a highly efficient research and development team, rich engineering experience, and a sophisticated service system. The company has designed and constructed over 400 large and medium VPSA gas separation and purification plants and projects, with performance indicators reaching international advanced standard, supporting procurement confidence for industrial users seeking proven technology maturity.
Global Reach & Target Markets
PSA-O2 Generator is engineered for global small to medium oxygen demand where stable VPSA supply, compact installation, and low operating cost are critical. With extensive successful case studies and rich experience across diverse industries, PKU Pioneer supports customers with engineering-centric delivery, localization-aware integration practices, and service capabilities aligned with regional industrial standards and compliance expectations.
Southeast Asia
Middle East
Europe
Americas
South Asia
Customer Success & Experience
Based on decades of manufacturing expertise and sustained R&D in gas separation materials and complete equipment systems, PKU Pioneer has delivered oxygen generation solutions across a wide spectrum of industrial applications. The PSA-O2 Generator reflects hands-on engineering experience accumulated through large-scale project execution and field feedback, translated into a compact skid-mounted design that prioritizes stability, simplicity, and energy-saving outcomes.
Representative deployments include an oxygen plant supporting CO2 generation in Malaysia, an oxygen system for glass processing in Hubei, and an oxygen generator supporting ozone production in Hebei. These projects demonstrate practical integration capability across different process requirements and operating environments, including continuous operation demands and variable load conditions.
Customers benefit from a delivery model that combines proprietary molecular sieve manufacturing capability, engineered valve and switching selection, and a structured service system. The result is a reliable equipment ownership experience designed to support repeat orders through consistent oxygen performance, manageable maintenance, and responsive technical support from an experienced engineering organization.
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