99.999% Pure Nitrogen Generator

Industrial oxygen generators are large-scale equipment that use pressure swing adsorption (PSA) or vacuum pressure swing adsorption (VPSA) technologies to separate oxygen from the air on a large scale. Unlike medical or household oxygen generators, industrial oxygen generators focus on high flow rate, continuity, economy, and reliability. They are the core equipment for on-site oxygen supply (PSA) in industries such as metallurgy, chemical engineering, wastewater treatment, glass manufacturing, papermaking, aquaculture, and ozone production.

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Pressure Swing Adsorption (PSA): By utilizing the high adsorption capacity of zeolite molecular sieves (ZMS) for nitrogen, nitrogen is adsorbed under pressure and oxygen is produced; under reduced pressure, nitrogen is desorbed to regenerate the molecular sieves. This technology is mature and is suitable for small to medium-scale applications (with oxygen production typically ranging from 5 to 200 Nm³/h).

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01.

The starting point of customized services

This method improves upon PSA by adding a vacuum desorption step, reducing energy consumption and enhancing the single-machine oxygen production efficiency and scale. It is currently the mainstream choice for large-scale oxygen production (with oxygen output reaching several thousand Nm³/h).

Deep Cold Separation Method (ASU)： Although often regarded as a separate category, some integrated small-scale deep cold equipment also fall within the scope of industrial oxygen production. It achieves high purity (≥99.5%) of oxygen, nitrogen, and argon through deep freezing and distillation separation, and is suitable for extremely large-scale and ultra-high purity requirements.

02.

Modular system design： Balancing adaptability and scalability

Based on the design concept of "core modules + functional plugins", the customized solutions can be flexibly combined and upgraded in the future：

Structural form customization： Provide various forms such as cabinet-style (for laboratory scenarios), skid-mounted (for rapid installation in industrial sites), and container-style (for mobile gas supply needs), minimizing the floor space through compact layout, for example, designing a stacked system for the space-constrained electronic cleanroom, reducing the floor area by 40%;

1,Large-scale oxygen production capacity: The oxygen output range is wide, ranging from tens to thousands of standard cubic meters per hour (Nm³/h), which can flexibly match the oxygen demand scale of different industrial scenarios.

2,Flexibility in purity: The oxygen purity can be stably supplied within the range of 90%-95% (typical PSA/VPSA). Through process optimization, some equipment can produce high-purity oxygen of ≥99%.

3,24/7 continuous operation: The design is robust and durable, enabling uninterrupted and stable continuous operation throughout the year, meeting the continuous gas source requirements of industrial production processes.

4,Low operating costs: Electricity is the only major energy consumption. Unlike liquid oxygen or cylinder oxygen, there is no need to bear high transportation, filling, and evaporation loss costs. The oxygen cost can be reduced by 30%-50%.

5,High automation level: Using PLC or DCS control systems, it realizes fully automatic operation, remote monitoring, fault diagnosis and alarm, reducing manual intervention.

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Intelligent Control:

Air compression and purification system: Oil-free screw air compressor, air storage tank, precision filter (for oil removal, water removal, dust removal), freeze dryer, etc., ensure that the input air is clean and dry.
Adsorption separation system: The core is the adsorption tower filled with molecular sieves (usually a double tower or multiple towers), and pressure variation circulation is achieved through a precision valve group.

Remote monitoring, real-time control

Remote operation, convenient adjustment

Timed start and stop, precise timing

Reduce manual labor, improve efficiency

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The working principle of the nitrogen generator

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Equipment selection parameter table

Capacity	Purity (%)	Model	length(mm)	Width(mm)	Height (mm)	Weight(kg)	Inlet size (DN)	Outlet size(DN)	Buffer tank volume(m³)
5	99	LPO-5	1000	1000	1640	380	DN15	DN15	0.25
	99.9	LPO-5	1000	1000	1640	380	DN15	DN15	0.25
	99.99	LPO-5	1300	1100	1400	560	DN15	DN15	0.3
	99.999	LPO-5	1300	1100	1400	560	DN15	DN15	0.3
20	99	LPO-20	1450	1300	1450	700	DN20	DN15	0.3
	99.9	LPO-20	1500	1400	2030	900	DN25	DN20	0.5
	99.99	LPO-20	1500	1500	1700	1000	DN25	DN15	0.5
	99.999	LPO-20	1600	1450	1950	1400	DN25	DN15	0.5
50	99	LPO-50	1600	1400	2100	1100	DN25	DN20	0.5
	99.9	LPO-50	1700	1500	2100	1300	DN25	DN15	0.5
	99.99	LPO-50	1700	1550	2160	1500	DN40	DN25	0.5
	99.999	LPO50	2000	1800	2500	2300	DN40	DN40	0.5
100	99	LPO-100	1600	900	2230	1050	DN40	DN50	1.5
	99.9	LPO-100	1800	1750	2250	1400	DN40	DN25	1.5
	99.99	LPO-100	2100	1950	2250	2700	DN40	DN40	1
	99.999	LPN-100	2200	1300	2900	3300	DN65	DN40	2
150	99	LPO-150	1800	1150	2200	1400	DN40	DN25	1.5
	99.9	LPO-150	2100	1200	2250	2200	DN40	DN40	1.5
	99.99	LPO-150	2200	1300	2700	3200	DN50	DN40	2
	99.999	LPO-150	2200	1500	3100	4400	DN80	DN50	4
200	99	LPO-200	2000	1150	2300	1700	DN40	DN25	2
	99.9	LPO-200	2100	1200	2500	2200	DN40	DN50	2
	99.99	LPO-200	2200	1400	2850	4100	DN65	DN50	2.5
	99.999	LPO-200	2200	1500	3000	4100	DN65	DN50	4

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Industrial PSA Oxygen Generator Achieving 99.999% Nitrogen Purity

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