PSA nitrogen generator for on-site nitrogen production

On-site nitrogen generator for food packaging plant

PSA nitrogen generator adsorption tower with carbon molecular sieve

PSA Nitrogen Generator

The PSA Nitrogen Generator utilizes Pressure Swing Adsorption (PSA) technology. It separates nitrogen from compressed air using high-performance Carbon Molecular Sieve (CMS), which adsorbs oxygen faster than nitrogen. Featuring fully automatic PLC control, it offers quick start-up, adjustable purity (95%-99.999%), low operating costs, and minimal maintenance. It's an ideal, cost-effective solution for industries like electronics, food packaging, and heat treatment.

Parameter	Specification
Technology	Pressure Swing Adsorption (PSA)
Adsorbent	Carbon Molecular Sieve (CMS)
Product Gas	Nitrogen (N₂)
Purity	95% - 99.999% (adjustable)
Capacity	1 - 3000 Nm³/h (single unit)
Working Pressure	0.6 - 0.95 MPa
Outlet Pressure	0.1 - 0.6 MPa (adjustable)
Dew Point	≤ -40℃
Control	Fully automatic PLC with touchscreen HMI

Nitrogen is produced within 10-15 minutes

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Estimated PSA Nitrogen Generator Price

Nitrogen concentration (%) (optional)
- <90
- 95
- 99
- 99.5
- 99.99
- 99.995
- 99.999
- 99.9995
Productivity (m³ / h)
- 10
- 20
- 30
- 40
- 50
- 60
- 80
- 100
- 150
- 200
- 300
- 500
- 1000
- 3000
Nitrogen pressure (bar)
- 0-10
- 10-40
- 150
- 200

The approximate cost will be: 0

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Product & Technical Features

High-Quality Adsorbent
- Premium Carbon Molecular Sieve (e.g., Takeda 3KT-172) ensures high adsorption efficiency and long service life (typically >10 years under normal conditions).
Optimized Structural Design
- Composite Bed: "Activated Alumina + CMS" layered structure protects the sieve from moisture, oil, and contaminants.
- Multi-Point Compression Device: Prevents CMS settling and pulverization, reducing degradation.
- Flow Diffuser & Collector: Ensures even air distribution and efficient nitrogen collection, boosting overall efficiency.
Reliable Key Components
- Pneumatic Valves: High-end valves (e.g., Burkert) offer extended lifespan (>3 million cycles), excellent sealing, and easy maintenance.
- Control System: PLC (e.g., Siemens) with touch-screen HMI enables full automation, parameter monitoring, fault diagnosis, and data logging.
Intelligent Control System
- One-touch operation, fully automatic running, supports remote monitoring for unattended operation.
- Purity Interlock & Auto-Venting: Monitors nitrogen purity in real-time; vents automatically if substandard, ensuring gas quality.
- Variable Operation Mode: Automatically adjusts parameters based on actual demand (50%-100% range) for energy savings.
- Multi-Unit Coordination: For multiple units, enables intelligent master/auxiliary/standby switching and gradient start-stop.

Core Advantages

1. Significant Cost Savings

On-site generation drastically reduces costs compared to purchasing bottled or liquid nitrogen, eliminating procurement, transportation, and storage expenses. Fast ROI.
2. Flexibility & Convenience

Nitrogen purity (98%~99.999%) and pressure (0.1~0.7MPa adjustable) can be tailored to process needs. On-demand, stable supply.
3. Flexibility & Convenience

Fully automated with multiple safety protections. Eliminates risks associated with frequent transport of high-pressure cylinders. Features self-diagnosis and alarm systems.
4. Energy Efficient & Eco-Friendly

Optimized processes (e.g., mid-range pressure equalization) and intelligent adjustment lower specific energy consumption. On-site production reduces carbon footprint from long-distance transport.
5. Easy Maintenance

Modular design, durable core components, minimal routine maintenance (mainly periodic pre-filter cartridge replacement).

Product Specifications

Nitrogen Flow Rate	Nitrogen Purity	Atmospheric Dew Point	Nitrogen Pressure
1–3,000 Nm³/hr (20℃, 101.325 kPa)	90%–99.9995%	≤–40℃ (customizable)	0.05–0.8 MPa (customizable)

Model	N₂ Purity (%)	N₂ Output (Nm³/h)	Air Consumption (m³/min)	Dimensions L×W×H (mm)
HYN-10	99	10	0.5	1300×1150×1600
	99.5		0.59	1350×1170×1600
	99.9		0.9	1400×1180×1670
	99.99		1	1480×1220×1800
	99.999		1.3	2000×1450×1900
HYN-20	99	20	0.9	1400×1180×1670
	99.5		1	1450×1200×1700
	99.9		1.4	1480×1220×1830
	99.99		2	2050×1450×1850
	99.999		3	2100×1500×2150
HYN-30	99	30	1.4	1400×1180×1670
	99.5		1.5	1480×1220×1800
	99.9		2.1	2050×1450×1850
	99.99		2.8	2100×1500×2150
	99.999		4	2500×1700×2450
HYN-40	99	40	1.8	1900×1400×1800
	99.5		2	2000×1450×1900
	99.9		2.8	2100×1500×2050
	99.99		3.7	2200×1500×2350
	99.999		6	2600×1800×2550
HYN-50	99	50	2.1	2000×1500×1900
	99.5		2.5	2050×1450×1850
	99.9		3.3	2100×1500×2250
	99.99		4.7	2500×1700×2500
	99.999		7.5	2700×1800×2600
HYN-60	99	60	2.8	2050×1450×1850
	99.5		3	2050×1500×2100
	99.9		4.2	2200×1500×2250
	99.99		5.5	2550×1800×2600
	99.999		9	2750×1850×2700
HYN-80	99	80	3.7	12100×1500×2000
	99.5		4	2100×1500×2150
	99.9		5.5	2500×1700×2550
	99.99		7.5	2700×1800×2600
	99.999		12	3200×2200×2800
HYN-100	99	100	4.6	2100×1500×2150
	99.5		5	2500×1800×2350
	99.9		7	2650×1800×2700
	99.99		9.3	2750×1850×2750
	99.999		15	3350×2500×2800
HYN-150	99	150	7	2150×1470×2400
	99.5		7.5	2550×1800×2600
	99.9		10.5	2750×1850×2750
	99.99		14	3300×2500×2750
	99.999		22.5	3500×3000×2900
HYN-200	99	200	9.3	2600×1800×2550
	99.5		10	2700×1800×2600
	99.9		14	3300×2500×2800
	99.99		18.7	3500×2700×2900
	99.999		30	3600×2900×2900
HYN-300	99	300	14	2700×1850×2700
	99.5		15	3150×2150×2750
	99.9		21	3500×2700×2900
HYN-500	99	500	23.3	3350×2500×2800
	99.5		25	3500×2700×2900
	99.9		35	3800×3000×3000
HYN-1000	99	1000	47	3600×2900×2900
	99.5		50	4000×3000×2900
	99.9		70	4200×3550×3000
HYN-3000	99	3000	140	4500×3800×2950
	99.5		150	4800×4800×3000
	99.9		210	6000×6000×3000

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Working Principle

The PSA (Pressure Swing Adsorption) Nitrogen Generator separates nitrogen from compressed air using Carbon Molecular Sieve (CMS). The core mechanism is based on the kinetic difference in diffusion rates between oxygen and nitrogen molecules.

Process: Compressed air enters an adsorption tower filled with CMS. Oxygen molecules (smaller, ~2.8Å) diffuse faster and are preferentially adsorbed into the sieve's micropores. Nitrogen molecules (larger, ~3.0Å) diffuse slower and remain in the gas phase, resulting in a nitrogen-enriched stream at the outlet.
Cycle: The system typically employs dual adsorption towers (Tower A & B). Controlled by a PLC and pneumatic valves, the towers alternate between pressurized adsorption (producing N₂) and depressurized desorption (regeneration), ensuring a continuous supply of nitrogen.

Key Application Scenarios

PSA Nitrogen Generators are widely used in industries requiring inert gas for blanketing, purging, padding, or chemical processes:

Electronics

Semiconductor, IC, and LCD panel manufacturing for protection and cleaning.
Food & Beverage Pharmaceuticals

Food packaging (chips, powder), beer/wine bottling, drug manufacturing and packaging (nitrogen blanketing).
Heat Treatment & Metallurgy

Bright annealing, quenching, carburizing, powder metallurgy sintering, float glass production.
Chemicals & Petrochemical

Inert blanketing for reactors, pipeline/ vessel purging, nitrogen drilling and displacement in oil & gas fields.
Mining

Coal mine fire prevention and control, gas displacement.
Others

Rubber/plastics production, aerospace, warehouse fire prevention, etc.