Product Overview
The On-site Oxygen Generation System for Chemical Plants is a fully engineered industrial gas solution designed to produce high-purity oxygen directly at the point of use, eliminating dependency on liquid oxygen deliveries or cylinder supply chains.
Based on mature Pressure Swing Adsorption (PSA) technology, the system continuously separates oxygen from compressed air, delivering a stable, safe, and cost-efficient oxygen supply for chemical manufacturing processes.
This solution is widely deployed in:
- Large-scale chemical production facilities
- Oxidation and catalytic reaction systems
- Wastewater treatment and environmental engineering
- Continuous industrial combustion and process optimization
Unlike traditional oxygen supply methods, on-site generation ensures 24/7 availability, predictable operating cost, and enhanced plant safety compliance.
Why Chemical Plants Choose On-site Oxygen Generation
Chemical industries require oxygen supply systems that guarantee:
Compared to Traditional Oxygen Supply
|
Supply Method |
Operational Risk |
Cost Stability |
Supply Continuity |
|
Cylinders |
High (handling, logistics) |
High fluctuating cost |
Limited |
|
Liquid Oxygen |
Medium (transport dependency) |
Medium |
Dependent on supplier |
|
On-site PSA System |
Very Low |
Highly stable |
24/7 continuous |
Working Principle
The system uses Pressure Swing Adsorption (PSA) technology:
Air Compression & Purification
Ambient air is compressed and treated through multi-stage filtration to remove:
- Dust particles
- Oil vapors
- Moisture content
Molecular Sieve Separation
Compressed air enters dual adsorption towers filled with Zeolite Molecular Sieves (ZMS):
- Nitrogen is selectively adsorbed
- Oxygen passes through as product gas
Oxygen Storage & Stabilization
Generated oxygen is stored in buffer tanks to ensure:
- Stable flow output
- Constant pressure delivery
- Smooth integration with plant systems
Automatic Cycling System
The system alternates adsorption and regeneration cycles automatically, enabling:
- Continuous oxygen production
- Energy-efficient operation
- Long service life of molecular sieves
System Engineering Features
Industrial-Grade Continuous Operation
- Designed for 24/7 chemical plant operation
- Stable performance under variable load conditions
- Redundant design available (N+1 configuration)
High Efficiency & Low Operating Cost
- Reduced oxygen cost per Nm³ compared to LOX supply
- Energy-efficient air compression system
- Optimized PSA cycle for minimum power consumption
Flexible System Integration
- Compatible with existing chemical plant pipelines
- Custom outlet pressure and flow rate
- Modular design for easy expansion
Safety-Oriented Design
- No high-pressure cylinder handling risks
- No liquid oxygen storage hazards
- Built-in pressure relief and fail-safe system
Intelligent PLC Control System
- Siemens / Schneider PLC (optional)
- Real-time monitoring of oxygen purity, pressure, and flow
- Automatic start/stop based on demand
- Alarm and safety shutdown functions
Technical Specifications
(All parameters can be customized based on project requirements)
Oxygen Performance
- Oxygen Purity: 93% ±3% (standard) / up to 95% / 99% optional
- Flow Capacity: 1 – 500 Nm³/h (customizable)
- Outlet Pressure: 4 – 8 bar standard, up to 150 bar with booster system
- Dew Point: ≤ -40°C
Supporting Equipment
- Screw air compressor system
- Air dryer & multi-stage filtration unit
- PSA oxygen generator (dual tower system)
- Oxygen buffer tank
- Optional oxygen booster & filling system
System Configuration
- Technology: PSA (Pressure Swing Adsorption)
- Raw Material: Ambient air
- Control System: PLC + HMI touchscreen
- Operation Mode: Fully automatic / continuous 24-hour operation
Electrical Requirements
- Power Supply: 380V / 50Hz / 3-phase (customizable)
- Energy Consumption: Optimized based on oxygen output capacity
Industrial Applications
This system is widely used in chemical industry processes including:
- Chemical oxidation reactions
- Wastewater and effluent treatment systems
- Ozone generation systems
- Furnace combustion enhancement
- Catalyst regeneration processes
- Fine chemical production
- Gasification and industrial oxidation
Engineering Benefits for Chemical Plants
Operational Benefits
- Stable oxygen supply improves process consistency
- Eliminates dependency on external suppliers
- Reduces downtime risk in production lines
Economic Benefits
- Significant reduction in oxygen procurement cost
- ROI typically achieved within 12–24 months (depending on usage scale)
- Lower logistics and storage expenses
Safety & Compliance Benefits
- Reduced high-pressure gas handling risks
- Improved plant safety management compliance
- Environmentally friendly oxygen production using only air
Project Experience & Global Supply Capability
We provide on-site oxygen generation systems for chemical and industrial clients across:
- Asia
- Middle East
- Africa
- South America
Our systems are designed for:
- Harsh industrial environments
- High humidity and temperature regions
- Continuous heavy-duty operation
(Project references and case studies available upon request.)
Quality Assurance & Standards
All systems undergo strict industrial testing before delivery:
- Factory Acceptance Test (FAT)
- Pressure, flow, and purity verification
- 72-hour continuous load testing
- International shipping inspection
Optional certifications:
- ISO manufacturing standards
- CE compliance (if required)
- Third-party inspection (SGS/BV)
Installation & After-Sales Support
We provide full lifecycle support:
- System layout & engineering design support
- On-site installation guidance or supervision
- Commissioning & operator training
- Spare parts supply
- Remote technical support
Frequently Asked Questions
Q: What is the main advantage of an on-site oxygen system?
A: It produces oxygen directly at your plant, eliminating dependency on external suppliers and ensuring continuous availability.
Q: Is PSA technology reliable for chemical industry use?
A: Yes. PSA systems are widely used in industrial environments and are proven for continuous 24/7 operation.
Q: What oxygen purity do you recommend for chemical plants?
A: Most chemical applications operate efficiently at 93%–95% purity, while some processes require up to 99%.
Q: How long does installation take?
A: Depending on system size, installation typically takes 2–6 weeks including commissioning.
Q: What is the expected ROI period?
A: Most customers achieve ROI within 12–24 months depending on oxygen consumption volume and local LOX pricing.
Q: Can the system run automatically?
A: Yes. The system is fully automated with PLC control and requires minimal manual operation.
Q: What maintenance is required?
A: Routine filter replacement, compressor maintenance, and periodic system inspection.
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