Nitroxy® Series Molecular sieves for oxygen concentrators
Molecular sieves are an essential component of oxygen concentrators, ensuring efficient nitrogen removal and reliable oxygen delivery for medical therapy. Arkema’s Nitroxy® zeolites provide high selectivity, fast cycling, and long‑term stability, guaranteeing the performance of both portable (POC) and stationary (SOC) devices used in hospitals, homecare emergency settings and during travels.
- Africa
- Asia Pacific
- Europe
- Latin America and the Caribbean
- Middle East
- North America
- Oceania
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Molecular sieves for oxygen concentrators: high-efficiency adsorbents for medical and healthcare applications
Oxygen concentrators are essential medical devices used to provide continuous oxygen therapy for patients with respiratory conditions such as COPD (Chronic Obstructive Pulmonary Diseases), asthma, and post-COVID conditions. These systems rely on Pressure Swing Adsorption (PSA) technology, where zeolites play a crucial role by selectively adsorbing nitrogen from ambient air to deliver enriched oxygen.
Medical oxygen demand continues to grow due to the rise in respiratory diseases, an aging population, and the need to strengthen preparedness for health emergencies. In this context, oxygen concentrators play an essential role by providing a reliable source of oxygen for both emergency care and long-term respiratory treatments in hospitals, clinics, and home care settings around the world.
Arkema’s Nitroxy® range of synthetic zeolites is uniquely engineered to meet the demanding performance, size, and energy requirements of both stationary and portable oxygen concentrators.
How do zeolites work in oxygen concentrators?
Zeolites are crystalline aluminosilicates with precisely structured micropores that allow them to act as molecular sieves. In PSA-based oxygen concentrators, they adsorb nitrogen from compressed air, allowing oxygen to pass through.
The Pressure Swing Adsorption (PSA) process typically alternates between two adsorption columns packed with zeolites. As one column adsorbs nitrogen, the other is regenerated by depressurization. Advanced zeolites with high nitrogen selectivity and fast kinetics enable shorter PSA cycles, resulting in smaller machines, reduced power consumption, and faster oxygen delivery.
High-performance zeolites ensure:
- Efficient and selective nitrogen removal
- Fast adsorption/desorption cycles for high productivity
- Low power consumption, ideal for portable devices
- Increased life time with a stable performance over thousands of cycles
Zeolite selection directly impacts the oxygen concentration, flow rate, and energy efficiency of the device.
Introducing the Nitroxy® range: dedicated molecular sieves for oxygen concentrators
As a global provider of molecular sieves, Arkema offers a comprehensive range of advanced zeolites for oxygen concentrators, guaranteeing performance of both stationary and portable items.
Key Benefits
- High O₂ concentration (up to 95%)
- Compact and lightweight material
- Long-term mechanical and chemical stability
Applications
Nitroxy® zeolites are used in:
- Hospital oxygen concentrators
- Home oxygen and elderly assistance devices
- Emergency medical equipment and ambulances
- Lightweight portable concentrators
- In-flight medical oxygen systems
- Hyperbaric chambers
- Oxygen therapy for veterinary uses
Arkema’s zeolites are integrated into devices used in diverse environments—from intensive care units in Europe to battery-powered oxygen backpacks in remote areas. Their versatility and performance make them essential for medical OEMs seeking reliability and consistency.
| Best use |
Nitroxy® products |
Cation | Adsorption capacity | Nitrogen selectivity | Diffusion kinetics | Bead size | Benefits |
|---|---|---|---|---|---|---|---|
| POC/SOC | SXSDM | Lithium | +++ | +++ | ++ | Medium | High quality and versatility |
| POC/SOC | Efficiency | Lithium | ++++ | +++ | + | Medium | High capacity grade for design optimizations |
| Small POC | Revolution | Lithium | +++ | +++ | +++ | Small | For smaller and lighter devices |
| POC | Power | Lithium | ++++ | +++ | + | Small | To supply continuous oxygen flow in the smallest devices |
| SOC | Nitroxy® 5 | Sodium | + | + | ++ | Medium | For larger devices and as guard layer |
| SOC | 5RC |
Sodium/ Lithium |
++ | ++ | ++ | Medium | Reactivated Nitroxy® 5 |
| POC/SOC | SXSDM-RC | Lithium | +++ | +++ | ++ | Medium | Reactivated SXSDM |
Why choose Arkema molecular sieves for oxygen concentrators?
DECADES OF EXPERTISE IN HIGH-PERFORMANCE ZEOLITE MANUFACTURING
ISO-CERTIFIED PRODUCTION WITH STRICT QUALITY CONTROL
CUSTOMER SUPPORT FOR DEVICE INTEGRATION AND PERFORMANCE OPTIMIZATION
GLOBAL SUPPLY CHAIN WITH LOCAL SERIVCE
Supporting health and sustainability
Arkema’s zeolites contribute to:
- Better patient outcomes through dependable oxygen therapy
- Longer device lifetimes and reduced waste
- Energy savings in daily operation
Nitroxy® zeolites support medical sustainability by enabling long-lasting devices with fewer component replacements. Their contribution to energy efficiency also reduces the carbon footprint of oxygen generation in both clinical and domestic settings.
Arkema's medical solutions align with:
SDG 3 – Good Health and Well-being