Psa Nitrogen Generator

In these cases PSA technology is the ideal and easiest way to go. In essence a nitrogen generator works by separating nitrogen molecules from the oxygen molecules within the compressed air. Pressure Swing Adsorption does this by trapping oxygen from the compressed air stream using adsorption.

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Product Description

What is a PSA nitrogen generator?

In these cases PSA technology is the ideal and easiest way to go. In essence a nitrogen generator works by separating nitrogen molecules from the oxygen molecules within the compressed air. Pressure Swing Adsorption does this by trapping oxygen from the compressed air stream using adsorption.

How does a PSA nitrogen generator work?

In the following paragraph, we will dive deeper into the PSA nitrogen generator working principle.

The core components of a PSA nitrogen generation system

At the core of a PSA nitrogen generation system lies a sophisticated and finely tuned system designed to produce high-purity nitrogen gas, directly on-site. Central to this system are two key components that work in harmony to separate nitrogen from other gases in the air. Let’s explore these foundational
elements:
1. The heart of the system: Carbon molecular sieve (CMS)

The carbon molecular sieve (CMS) is the pivotal component of the PSA process, acting as the selective barrier that differentiates nitrogen from other gases. This highly porous carbon material excels in adsorbing oxygen, carbon dioxide, and moisture from compressed air while allowing nitrogen molecules to pass through unimpeded. Its unique physical properties, including the size and structure of its pores, make CMS exceptionally efficient at purifying nitrogen to the required levels for various industrial applications.
2. Ensuring continuous production: The dual pressure vessels

To achieve a constant supply of nitrogen, PSA systems incorporate dual pressure vessels, each packed with CMS. This dual-vessel setup is critical for maintaining a steady flow of nitrogen; as one vessel captures oxygen and impurities in the adsorption phase, the other vessel releases the adsorbed gases during regeneration. This cyclical process allows for non-stop nitrogen generation, with the system automatically switching between vessels to ensure that production is not interrupted.
Together, the carbon molecular sieve and the dual pressure vessels form the backbone of PSA nitrogen generators, enabling them to deliver a reliable and continuous supply of high-purity nitrogen to meet the demands of various industries.

Technical Specifications

carbon molecular sieve capacity (KG)	purity/nitrogen capacity (Nm³/h) – Low purity				purity/nitrogen capacity (Nm³/h) – high purity
	96%	97%	98%	99%	99.95%	99.98%	99.995%	99.999%
120	55	50	45	40	20	15	13	10
150	75	70	65	50	20	20	15	13
180	80	80	70	60	30	22	20	15
210	105	100	90	80	30	25	25	18
240	115	110	100	90	40	30	27	20
275	130	120	110	100	45	35	30	23
300	150	140	130	110	45	40	35	25
336	170	160	140	120	60	45	40	28
360	180	170	150	130	65	48	42	30
420	200	190	170	150	70	55	45	35
444	210	200	180	160	75	50	50	37
480	230	220	200	170	80	60	55	40
516	250	230	210	180	85	65	55	43
540	270	260	230	200	90	70	60	45
600	290	270	240	220	100	75	65	50
624	300	280	250	230	105	80	70	52
660	330	310	280	250	110	85	75	55
720	360	350	320	280	120	90	80	60
840	390	370	330	300	140	100	90	70
900	430	400	360	320	150	110	100	75
960	460	440	410	370	160	120	110	80
1020	480	460	400	350	170	125	115	85
1080	500	470	420	380	180	130	120	90
1200	550	520	470	400	190	140	130	100
1250	630	600	540	480	200	150	140	105
1300	650	650	500	450	220	160	150	110
1350	650	630	570	490	230	170	150	115
1400	670	620	550	500	250	180	160	120
1500	720	680	600	550	260	190	170	130
1550	760	730	650	600	270	200	180	135
1600	770	720	680	580	280	210	190	140
1700	850	800	720	650	300	220	200	150
1800	930	880	780	700	330	240	210	160
1900	950	900	800	730	350	250	220	170
2000	1000	950	850	750	370	270	230	180
2100	1100	1050	950	850	400	280	250	190
2200	1150	1000	900	800	420	300	260	200

Nitrogen Purity Requirements

To produce your own nitrogen, you need to first figure out the required purity for your use. Clean, dry air is essential when feeding it into a nitrogen generator, as it ensures high-quality nitrogen and protects the CMS from moisture damage. Keep the intake air temperature between 10 and 25 degrees Celsius and the pressure from 4 to 13 bar. A dryer should be in place after the compressor and before the generator to treat the air.

If using an oil-lubed compressor, an oil coalescing and carbon filter are necessary to remove impurities before the air reaches the nitrogen generator. Most systems designs have built-in sensors to monitor air quality and protect the PSA system.

The air factor is a big deal in system design for nitrogen generation, indicating how much compressed air is needed for a certain nitrogen output. It’s a measure of efficiency: the lower the air factor, the more efficient and cost-effective the generator is

Advantages of PSA Nitrogen Generators

High-Quality Nitrogen Gas Production

Nitrogen generators capture and convert the air around us into nitrogen with purity levels as high as 99.9995%, depending on the system’s capabilities. Generators provide a steady stream of high-purity nitrogen, maintaining both flow and pressure as needed.

Round-the-Clock Reliability and Minimized Downtime

Offering uninterrupted operations 24/7, these generators ensure a constant flow of nitrogen gas, ready whenever required.The on-demand nitrogen supply means operations can continue without interruption, reducing idle time.

Supply Flexibility

The nitrogen output can be quickly adjusted to meet different needs. As long as the generator’s flow and purity match the task, switching applications is straightforward and hassle-free.

Cost-Effective Ownership and Substantial Cost Savings

By replacing outdated cylinder technology, the cost of producing nitrogen on-site is significantly lower, slashing expenses by over 50% for many lab setups compared to bottled or liquid nitrogen. After the initial investment, the long-term savings can reach up to 90%, making the payback period worthwhile.

Robust and Convenient Design

Built to withstand vibrations and impacts, and not affected by oils or moisture, these generators, with regular annual maintenance, can reliably function for a decade or more. Their compact design means they take up less room, which makes them an ideal suite for tight spaces.

Applications & Industries

Nitrogen generation is relied on by many industries for their manufacturing processes. They include, but are not limited to:

Food & Beverage

Oil & Gas

Mining Industry

Pharmaceutical, Chemical & Petrochemical Industry

Choosing Between a PSA Generator and a Membrane Generator

PSA and membrane systems each offer unique features and benefits. In general, membrane technology is better suited to low purity applications while PSA technology is best suited for higher purity applications.

Specification	PSA Generator	Membrane Generator
Achievable Purity	Higher Purity	High Purity
Efficiency	Higher	High
Differential Pressure	1.5~2 bar	1~1.5 bar
Flow Stability	Fluctuating in/on/outlet	Stable
Buffer tank required	Surge air receiver and nitrogen mixing vessel required	No
Noise	High (blow-off peaks)	Low Noise Operation
Control Type	PLC, Auto control	PLC, Auto Control
Inlet Temperature	Operation up to 60°C	Operation up to 60°C
Start-up time	Minutes / hours	Seconds
Weight	Medium	Low
Maintenance	Low	Lower
Moving Parts	Frequent change-over of valves	No required

In addition to psa nitrogen generator, we also produce VPSA Oxygen Generators,PSA Oxygen Generators, storage tanks, heat exchangers and other products. If you are interested in psa nitrogen Systems or other products, please feel free to send an email to [email protected]. We will be very happy to serve you.

What is the difference between PSA and membrane nitrogen generator?

Membrane technology is ideal for low-purity applications, while PSA technology can produce higher-purity nitrogen. Both technologies offer cost-effective and reliable solutions for nitrogen generation in various industries.

What is the capacity of a PSA nitrogen generator?

Nitrogen generators are available in 6 standard models with capacity in the range from 1 – 115 m3/hour from 95% to 99.9995% purity. Oxywise PSA generators are designed for 24/7 operation. The touchscreen control has user friendly interface with automatic start/stop function based on gas consumption.