Product Overview
The PSA Oxygen Plant for Chemical Industry is an advanced on-site oxygen generation system designed for continuous industrial oxygen supply in chemical, petrochemical, and process industries.
Based on Pressure Swing Adsorption (PSA) technology, the system separates oxygen from compressed ambient air using high-selectivity Zeolite Molecular Sieve (ZMS), delivering stable oxygen purity of up to 95%.
Unlike traditional liquid oxygen supply or cylinder-based systems, PSA oxygen plants enable chemical manufacturers to:
- Eliminate dependency on external oxygen suppliers
- Reduce oxygen logistics and transportation risks
- Achieve stable 24/7 oxygen availability
- Significantly reduce long-term operating costs
This system is widely used in continuous process industries where oxygen stability directly impacts reaction efficiency, yield, and plant safety.
Engineering Value for Chemical Industry
In chemical production, oxygen is not just a utility-it is a reaction-critical process gas.
Our PSA oxygen systems are engineered for:
Stable Oxidation Reactions: Ensures controlled oxygen supply for oxidation-sensitive processes.
Continuous Process Reliability: Designed for uninterrupted 24/7 operation in industrial environments.
Energy Optimization: Low specific power consumption design reduces operational cost per Nm³ oxygen.
Process Integration: Compatible with reactors, oxidation towers, incineration systems, and catalytic processes.
Safety Enhancement: Eliminates risks associated with high-pressure oxygen cylinder handling and storage.
Working Principle
The PSA Oxygen Plant operates through a cyclic adsorption process consisting of two alternating towers.
Air Compression & Pre-Treatment
Atmospheric air is compressed and purified through:
- Dust filtration
- Oil removal
- Moisture separation
- Hydrocarbon filtration
PSA Adsorption Process
Compressed air enters twin adsorption vessels filled with Zeolite Molecular Sieve.
- Nitrogen is selectively adsorbed
- Oxygen passes through as product gas
Oxygen Collection
High-purity oxygen is collected into a buffer tank for stable output.
Regeneration Cycle
One tower produces oxygen while the other regenerates through depressurization.
Continuous Operation
Automatic switching ensures uninterrupted oxygen supply 24/7.
Technical Specifications
|
Parameter |
Specification Range |
|
Oxygen Capacity |
5 – 5,000 Nm³/hr |
|
Oxygen Purity |
90% – 95% |
|
Oxygen Outlet Pressure |
4 – 150 bar (with booster) |
|
Dew Point |
≤ -40°C |
|
Technology |
PSA (Pressure Swing Adsorption) |
|
Adsorbent |
High-performance Zeolite Molecular Sieve |
|
Operation Mode |
Fully Automatic (PLC + HMI) |
|
Specific Power Consumption |
~0.8 – 1.2 kWh/Nm³ O₂ |
|
Start-up Time |
5 – 15 minutes |
|
Plant Availability |
≥ 99% |
|
Design Life |
15+ years |
|
Maintenance Cycle |
6–12 months routine inspection |
System Configuration
A complete PSA Oxygen Plant includes:
Air Compression System
Industrial-grade screw or piston air compressor.
Air Treatment System
- Pre-filters
- Coalescing filters
- Activated carbon filters
- Refrigerated or desiccant dryer
PSA Oxygen Generator Unit
Dual adsorption towers with automated valve switching system.
Oxygen Buffer Tank
Stabilizes flow and pressure fluctuations.
Oxygen Analyzer System
Real-time oxygen purity monitoring.
PLC Control System
- Fully automatic operation
- Alarm & safety interlocks
- Remote monitoring (optional SCADA/IoT)
Oxygen Booster (Optional)
For high-pressure industrial applications.
Industrial Applications in Chemical Industry
The system is widely used in:
Chemical Manufacturing
- Oxidation reactions
- Intermediate chemical synthesis
Petrochemical Industry
- Catalyst regeneration
- Hydrocarbon oxidation
Nitric Acid Production
Ammonia oxidation process support
Hydrogen Peroxide Production
Controlled oxygen supply systems
Waste Treatment & Incineration
High-efficiency combustion support
Sulfur Recovery Units (SRU)
Improved sulfur conversion efficiency
Pharmaceutical Industry
Fine chemical oxidation processes
Ozone Generation Systems
Feed oxygen supply for ozone production
Wastewater Treatment Plants
Aeration and biological treatment support
PSA vs Liquid Oxygen
|
Factor |
PSA Oxygen Plant |
Liquid Oxygen Supply |
|
Oxygen Source |
On-site generation |
External delivery |
|
Supply Stability |
Continuous |
Dependent on logistics |
|
Operating Cost |
Low (electricity only) |
High recurring purchase cost |
|
Storage Requirement |
Not required |
Cryogenic tanks required |
|
Safety Risk |
Low |
Higher handling risk |
|
Scalability |
Easy expansion |
Limited by supply chain |
|
Long-term ROI |
12–36 months |
No ROI structure |
Key Advantages for Industrial Buyers
True On-site Oxygen Independence: No dependency on external gas suppliers.
Stable Process Control: Ensures consistent oxygen purity for chemical reactions.
Lower Total Cost of Ownership (TCO): Significant savings over long-term oxygen procurement.
Modular Expansion Capability: Capacity can be expanded as production grows.
Designed for Industrial 24/7 Operation: Built for continuous chemical plant environments.
Global Engineering Compliance:
Can be supplied with:
- CE / ISO standards
- ASME pressure vessel certification
- Third-party inspection (SGS, BV, TUV optional)
Engineering Design Capabilities
We provide full engineering customization including:
Oxygen flow rate calculation based on process load
Energy optimization design
Plant layout & 3D configuration
Pressure and purity optimization
Integration with EPC project systems
Containerized skid design for overseas deployment
Quality Assurance & Manufacturing Standards
Each PSA Oxygen Plant is manufactured under strict industrial quality control:
- ISO 9001 Quality Management System
- Pressure vessel hydrostatic testing
- Factory Acceptance Test (FAT)
- Site Acceptance Test (SAT)
- Full documentation package (manuals, P&ID, certificates)
.
Global Project Experience
Our PSA oxygen systems have been widely applied in:
- Chemical processing plants
- Petrochemical facilities
- Industrial wastewater treatment projects
- Ozone generation systems
- EPC contractor projects across multiple regions
Installation & Technical Support
We provide complete lifecycle support:
Engineering Support
- System design consultation
- Process matching analysis
Installation Guidance
- Remote or on-site commissioning support
Operator Training
- Plant operation & maintenance training
Spare Parts Supply
- Global logistics support
After-sales Service
- Remote diagnostics and technical assistance
Frequently Asked Questions
Q: What oxygen purity can PSA Oxygen Plants achieve?
A: Typically 90%–95% oxygen purity, adjustable based on application requirements.
Q: Is PSA suitable for continuous chemical production?
A: Yes. The system is designed for 24/7 continuous industrial operation with automatic cycling between adsorption towers.
Q: What is the lifespan of the system?
A: The system is designed for a service life of 15+ years, with Zeolite Molecular Sieve typically lasting 8–10 years depending on operating conditions.
Q: Can oxygen pressure be customized?
A: Yes. Oxygen output pressure can be increased up to 150 bar using oxygen booster systems.
Q: How much energy does the system consume?
A: Energy consumption depends on system size, typically:
0.8 – 1.2 kWh per Nm³ of oxygen
Q: Can the system be containerized?
A: Yes. We offer containerized PSA oxygen plants for overseas EPC projects and remote installations.
Q: What industries commonly use this system?
A: Chemical, petrochemical, wastewater treatment, pharmaceuticals, metallurgy, and ozone generation industries.
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