Product Overview
The oxygen membrane is a high-efficiency separation device that uses membrane separation technology to enrich oxygen from air. By physically separating gas components, it increases the oxygen concentration in air to 25%–50%, producing oxygen-enriched air. This technology features a compact structure, simple operation, low energy consumption, and low investment cost, making it ideal for industrial combustion enhancement, HVAC fresh air systems, high-altitude oxygen supply, and aquaculture. Compared with cryogenic and pressure swing adsorption (PSA/VPSA) methods, membrane oxygen enrichment is more economical and flexible for small- to medium-scale applications.
Working Principle
The oxygen membrane operates based on the selective permeability of gases through a polymer membrane. Driven by a pressure difference, gases in the air diffuse through the membrane at different rates. Because oxygen has a higher diffusion rate and solubility than nitrogen, it preferentially passes through the membrane, while nitrogen and other gases remain on the opposite side—resulting in oxygen-enriched air. The process requires no chemical reactions or phase changes, ensuring simple structure, stable operation, and easy maintenance.
Key Features
l High separation efficiency, producing 25%–50% oxygen-enriched air
l Available in spiral-wound, plate, or hollow fiber configurations for various applications
l Low investment and low energy consumption, offering excellent cost-effectiveness
l Stable operation, no need for chemical adsorption or complex control systems
l Modular design, compact footprint, and easy installation and maintenance
l Scalable and integrable, easily adapted for system upgrades or combined use
Applications
l Oxy-fuel combustion: Enhances combustion efficiency of coal, natural gas, and other fuels; suitable for power plants and industrial furnaces
l Oxygen-enriched HVAC systems: Used in oxygen-enriched air conditioning, fresh air purification, and home healthcare oxygen devices to improve air quality
l High-altitude oxygen supply: Applied in portable oxygen systems, vehicle-mounted oxygen units, and engine oxygen-enrichment systems for high-altitude environments
l Aquaculture and water treatment: Provides oxygen-enriched aeration for fish farming, live seafood transport, and wastewater treatment, enhancing biological activity and environmental stability
| Model | O2-751070 | O2-50360 | O2-50150 | O2-50120 |
| Operating Pressure | 0.4 MPa - 1.0 MPa | 0.7 MPa - 1.0 MPa | 0.1 MPa - 0.2 MPa | 0.1 MPa - 0.2 MPa |
| Operating Temperature | Normal temperature | Normal temperature | Normal temperature | Normal temperature |
| Dimension | Φ75 × 1070 mm | Φ50 × 360 mm | Φ50 × 150 mm | Φ50 × 120 mm |
| Weight | 4 kg | 1 kg | 0.8 kg | 0.5 kg |
| Oxygen Concentration | 30% - 40% | 30% - 35% | 30% - 35% | 30% - 35% |
| Recovery Rate | ≥35% | 40% | 40% | 40% |
| Oxygen Flow Rate | ＞20 Nm³/h | ＞2.5 Nm³/h | ＞2.5 Nm³/h | ＞2.5 Nm³/h |
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