China PSA Nitrogen Generator Manufacturers Suppliers

Why Choose Us?

Rich Experience

NEWTEK is the LARGEST supplier and Manufacturer of PSA oxygen and nitrogen gas generators in China. We have been in continuously R&D for the on-site gas generators since 1987.

Reliable Product Quality

Our long experience in advanced O2 and N2 generators designing and customization ensures the high energy saving,high quality and lowest investment cost for the client in market worldwide.

Wide Range of Applications

NEWTEK provides custom oxygen and nitrogen generator solutions to a wide range of industries. Whether it is wastewater treatment, mining, fish farming, healthcare, tire inflation or laser cutting, we can design and customize cost-effective solutions.

Reliable Product Quality

Our solutions range from oxygen/nitrogen generation units, modular oxygen units to containerized units with built-in air conditioning, all of which can include our innovative NTK series generators - basically whatever your requirements are, we can imagine, design and build your solution in our custom manufacturing environment.

Integrated Nitrogen Generator
Compact On-Site Nitrogen Production System
The Integrated Nitrogen Generator is an all-in-one on-site nitrogen production solution designed to deliver stable, high-purity...
read more
PSA Nitrogen Gas Generator
PSA nitrogen generators use a process called pressure swing adsorption to separate nitrogen from other gasses in the air. This method involves passing compressed air through a bed of adsorbent...
read more
PSA N2 Plant
Nitrogen is a colorless, odorless inert gas. It is mainly used for isolation protection, container replacement, pipeline purging, etc. in petrochemical production. The industrial production of...
read more
PSA Nitrogen Gas Plant
The technology of air-to-nitrogen production with the use of adsorption processes in nitrogen generators is well studied and widely applied at industrial facilities for the recovery of high-purity...
read more
PSA Nitrogen Gas Generator
Compared with traditional nitrogen production methods, it has the characteristics of simple process flow, high degree of automation, fast gas production, convenient operation and maintenance, low...
read more

What is PSA Nitrogen Generator?

A PSA nitrogen generator produces nitrogen through a process that starts when compressed air is passed through a combination of filters to remove oil and moisture, then the purified air is directed to adsorption vessels that contain carbon molecular sieve. The remaining moisture, carbon dioxide, and other impurities are adsorbed by the sieve material. At high pressures, the sieves also adsorb oxygen. The remaining nitrogen is produced at the desired purity and oxygen is vented back into the atmosphere.

Advantages of PSA Nitrogen Generator

24/7 Nitrogen Production
Nitrogen generators can work continuously, 24/7. Generators can be used to produce a nearly endless supply of nitrogen as needed. For many businesses, this is preferable to other options, like nitrogen cylinders. Whereas nitrogen cylinders are subject to delays due to interruptions in the supply chain, PSA nitrogen generators continue to work as long as they have power.

High-Quality Nitrogen
PSA nitrogen generators can produce high-purity nitrogen from the atmosphere. In fact, PSA nitrogen generators can produce up to 99.9995% pure nitrogen, which is useful for industries that require a high purity for their nitrogen content. The purity level that comes from nitrogen generators is also flexible, to meet the needs of the business.

Low Associated Costs
Nitrogen generators have a reasonable up-front cost, and then very low cost of operation thereafter. Maintenance and utilities to run the generators are overall a minimal expense. Nitrogen cylinders and bulk liquid, meanwhile, represent a large ongoing cost to the business. With many applications using a PSA Nitrogen Generator will have operating costs of 10-20% of purchasing nitrogen cylinders or bulk nitrogen.

Reduced Environmental Footprint
Because PSA nitrogen generators are an on-site source of nitrogen gas requiring little utility to run the generator, these generators have a small environmental footprint. For businesses seeking an environmentally friendly solution to their nitrogen needs, and for businesses that prioritize eco-friendly processes, PSA nitrogen generators are an excellent option. This is especially true when the generators are compared to nitrogen cylinder delivery. Nitrogen cylinder delivery relies heavily on vehicles that use fossil fuels for transportation, thus increasing your business’s carbon footprint.

Types of PSA Nitrogen Generator

PSA N2 Plant
Nitrogen is a colorless, odorless inert gas. It is mainly used for isolation protection, container replacement, pipeline purging, etc. in petrochemical production. The industrial production of high-purity nitrogen mainly adopts the cryogenic production method. With the improvement of pressure swing adsorption (PSA) nitrogen production technology, it is widely used. Pressure swing adsorption (PSA) nitrogen production technology uses air as raw material and carbon molecular sieve as adsorbent.

PSA Nitrogen Gas Plant
The technology of air-to-nitrogen production with the use of adsorption processes in nitrogen generators is well studied and widely applied at industrial facilities for the recovery of high-purity nitrogen. The operating principle of a nitrogen generator utilizing the adsorption technology is based upon the dependence of the adsorption rates featured by various gas mixture components upon pressure and temperature factors. Among nitrogen adsorption plants of various types, PSA nitrogen gas generator have found the broadest application world-wide.

PSA Nitrogen Gas Generator
Compared with traditional nitrogen production methods, it has the characteristics of simple process flow, high degree of automation, fast gas production, convenient operation and maintenance, low operating cost, and strong adaptability of the device. Advanced technology and unique airflow distributor make the airflow distribution more uniform, and efficiently use carbon molecular sieves to provide qualified nitrogen in about 20 minutes. When a large amount of nitrogen is required for protection in the sudden state of the production device, the pressure swing adsorption nitrogen production equipment can be started at any time as long as there is sufficient gas source; while cryogenic nitrogen production takes 20 hours from start-up to production of qualified nitrogen.

Application of PSA Nitrogen Generator

PSA Nitrogen Generators in the Food and Beverage Industry

In the food and beverage sector, nitrogen serves various critical purposes, including product packaging, blanketing, and preservation. By preventing spoilage and extending the shelf life of products, it ensures that consumers receive safe and high-quality items.

PSA Nitrogen Generators in the Pharmaceutical Industry

The pharmaceutical industry heavily relies on high-purity nitrogen for a range of applications such as purging, blanketing, and the manufacture of Active Pharmaceutical Ingredients (APIs). Nitrogen plays a pivotal role in maintaining product integrity and safety, adhering to stringent quality standards.

PSA Nitrogen Generators in the Electronics Industry

In electronics manufacturing, nitrogen is essential for processes such as soldering, wave soldering, and reflow soldering to prevent oxidation and ensure the production of reliable and high-quality circuit boards. It is a cornerstone of quality assurance in the electronics sector.

PSA Nitrogen Generators in the Oil and Gas Industry

In the oil and gas sector, nitrogen is employed for enhanced oil recovery, pipeline testing, and purging. These applications enhance operational efficiency, safety, and environmental compliance, making nitrogen an invaluable resource in this industry.

PSA Nitrogen Generators in the Automotive Industry

The automotive industry relies on nitrogen for tire inflation. Nitrogen-filled tires maintain consistent pressure and temperature, which improves safety and fuel efficiency for vehicles.

Components of PSA Nitrogen Generator

PSA nitrogen generators are made up of several components, including:
● Air compressor

● Air dryer

● Twin towers PSA Nitrogen Generator with Carbon Molecular Sieve

● Storage tank

● Control panels

The PSA nitrogen generator consists of two towers that do the same thing. While one tower is desorbing, the next one is adsorbing, to produce a continuous supply of nitrogen.

How a PSA Nitrogen Generator Works

Pressure Swing Adsorption (PSA) is the most commonly used nitrogen generation technology for onsite gas generation. PSA nitrogen generators work using the basic principles of adsorption. The name comes from the way they use pressure swings to increase adsorption during the separation phase and then recharge the adsorbent material. A dual-chamber PSA enables continual nitrogen generation, with one chamber producing N2 while the other chamber recharges.

● The chambers are filled with an adsorbent material called a Carbon Molecular Sieve (CMS). Each CMS bead has thousands of microscopic pores. Small gas molecules such as oxygen (O2) adsorb to the surfaces at a higher rate than the larger N2 molecules.

● The rate of adsorption increases when the chamber is pressurized. Purified nitrogen gas is separated out of the chamber and stored when it reaches the desired level of purity.

● When the chamber is depressurized, excess oxygen and other gasses trapped within the CMS pores are released, recharging the beads for the next cycle of pressurization and adsorption. Excess oxygen and other gasses are released back to the atmosphere before the cycle begins again.

● Each chamber swings between a high-pressure nitrogen generation phase and a low-pressure regeneration phase, enabling continuous production of nitrogen gas.

Key Differences Between PSA and Membrane Nitrogen Generators

1. Purity Levels
The most essential factor to consider when choosing between PSA and membrane generators is the nitrogen purity levels. Nitrogen gas is considered either low or high purity depending on the ratio of nitrogen to oxygen. High-purity nitrogen has a 99.95% or greater nitrogen purity, while low-purity has a range of 90% to 99.9%. Ultra-high-purity nitrogen has a purity level of 99.999%.
Nitrogen generators offer varying nitrogen purity levels:
PSA nitrogen generators: Thanks to the effective CMS, PSA generators can produce high- and ultra-high-purity nitrogen. This resource is essential for industries and processes that are sensitive to oxygen and other contaminants. Examples include drug manufacturing, metal heat treatment and electronic circuit production.
Membrane generators: Membrane generators produce nitrogen at a lower purity level — between 95% and 99.9% — making them suitable for low-purity nitrogen applications. These use cases include blanketing adhesives, food packaging, purging pipelines, and filling the ullage or vapor space above the fuel in a commercial jet.

2. Flow Rates
Nitrogen flow rate refers to the volume of nitrogen gas a generator can produce in a given period. It is measured in cubic feet per minute (CFM), cubic feet per hour (CFH), liters per minute (LPM), or cubic meters per hour (M3/h). Certain industries require more control over flow rate for safety and processing requirements. PSA and membrane generators offer different pressures, purities, and flow rates, which are essential to consider when choosing between the two.
PSA nitrogen generators: Industries requiring high flow rates and high nitrogen purity would benefit from a PSA generator. They offer effective flow rate control while maintaining purity.
Membrane generators: Membrane generators achieve a reliable, steady flow at various rates. The benefit is a smaller footprint. You can control the flow rate by adding or removing membranes. However, higher flow rates can reduce nitrogen purity.

3. Energy Consumption
PSA and membrane generators all differ in their energy requirements. A nitrogen generator’s energy consumption increases with higher flow rates and purity levels. This increases operational costs and environmental impact. Consider the factors that affect energy consumption in each nitrogen generator type:
PSA nitrogen generators: PSA generators use less energy than membrane generators due to their lower air-to-nitrogen ratios.
Membrane generators: Membrane generators are more economical when an application allows the use of lower-purity nitrogen. However, PSA generators are a more cost-effective option for obtaining higher flow rates and increased purity levels.

4. Maintenance
Another factor to consider when choosing between PSA and membrane generators is their maintenance requirements and costs:
PSA nitrogen generators: A PSA generator has multiple moving components that need regular maintenance to operate at peak performance and deliver their expected service life.
Membrane generators: Compared to PSA generators, membrane generators are simpler systems with fewer points of maintenance.

5. Size
Finally, consider the space available in your facility, altitude and humidity levels before buying a nitrogen generator. If you have limited room in your floor plan, the footprint and height of the generator should be a key consideration.
PSA nitrogen generators: PSA generators are usually larger than membrane systems thanks to their extra components, double CMS absorption beds, and higher-grade nitrogen output. They also have more complex installation requirements.
Membrane generators: If you need a lighter, smaller system, a membrane generator may be the best choice. These designs can be more compact and easier to install than PSA generators depending on their capacity.

7 Troubleshooting Tips for You PSA Nitrogen Generator

With nitrogen generators it is important to understand that the nitrogen separation technology requires that a portion of the air that the compressor is producing be blown off as waste gas. Therefore, the compressor will run longer to produce a fixed amount of nitrogen than it would to produce the same amount of compressed air.

The process of performing Dry Pipe Nitrogen Inerting on a dry or preaction fire sprinkler system requires that the initial oxygen in the pipe network be purged through the system vent. During the purging period – which is typically fourteen (14) days or less – the nitrogen generator will run more frequently to replace the oxygen gas that is being removed from the system through the vent.

We test and configure our nitrogen generators to produce nitrogen gas with a purity of 98%. This process requires that the regulators inside the nitrogen generator be configured to maintain a certain pressure differential across the nitrogen separation membrane. If these regulators are adjusted in the field by non-qualified personnel, it could affect both the nitrogen purity and the nitrogen production rate, resulting in a reduction of nitrogen purity. To verify the purity of gas being produced, use a handheld gas analyzer connected to the sample port on the generator while it is running.

The oxygen removal vents that are installed on the dry or preaction system have a fixed orifice that controls the gas discharge rate. Due to the size of the orifice it is possible for debris to obstruct the gas flow path and restrict the ability of the vent to remove oxygen from the system.

A water trap created by a low spot in the pipe network that is full of water will isolate all piping downstream and prevent the oxygen from being removed by the vent. If the gas sample point is downstream of the water blockage the nitrogen purity rate will be low.

Nitrogen separation technology can be affected by contaminants in the compressed air being supplied to the nitrogen generator. ECS nitrogen generators are equipped with an air filtration system that prevents these contaminants from reaching the nitrogen separation membrane. The filters in the nitrogen generator must be replaced at least annually and more often in excessively dusty or dirty environments. Not performing the recommended filter maintenance could result in the nitrogen separation membrane being permanently damaged.

ECS vents are equipped with a relief pressure regulator to prevent the accidental depressurization of the fire sprinkler system. In a properly configured installation the vent regulator would be set at or slightly above the low air alarm pressure. Once the system pressure drops below the regulator set point gas is prevented from exiting the vent even if the vent is in the open position. If the regulator is set above the pressure setting of the air maintenance device, the system will not vent properly and oxygen will not be removed from the system.

8 Energy-Saving Tips and Tricks for PSA Nitrogen Generators

Choose the Right Nitrogen Generator
PSA nitrogen generators use a specifically formulated desiccant material called CMS to adsorb oxygen molecules in a compressed air stream and leave behind the nitrogen gas to go to the process point of use. Membrane nitrogen generators use a semi-permeable membrane to filter out the oxygen molecules in a stream of compressed air.

Optimize Your Nitrogen Generator’s Flow Rate
If you want to ensure that your nitrogen generator is operating as efficiently as possible, optimizing its flow rate should be at the top of your priority list. The flow rate of your generator is a key factor in determining how much energy it consumes during operation. By adjusting the nitrogen flow rate, you can find the optimal level that meets your requirements without wasting energy.

Use an Energy-Efficient Compressed Air System
When considering energy-efficient nitrogen generators, looking into options for improving the compressed air system’s energy efficiency is crucial. Nitrogen generators require a source of compressed air to operate, and using an energy-efficient air compressor system is absolutely critical to decreasing your energy usage. By making small changes, like using a correctly-sized compressor or reducing air leaks, you can get more out of your nitrogen generating system while minimizing its environmental impact.

Recover Waste Heat
The inefficiency of the nitrogen production process can result in up to 50% of energy consumed being given off as waste heat. However, this waste heat doesn’t have to go to waste. Through the implementation of heat recovery ducting systems on your air compressor waste heat can be repurposed for other processes such as space heating in your plant, saving precious money on energy bills.

Use a High-Efficiency Air Dryer
Removing moisture from compressed air is a crucial step to ensure high-quality and efficient performance of your nitrogen generating system. This is where compressed air dryers come into play. By removing moisture from compressed air, air dryers are able to prevent compressed air contamination damage to nitrogen generators. Using a high-efficiency air dryer in particular can help reduce the energy costs associated with compressor operation which translates to lower operating costs and a more environmentally friendly operation.

Monitor Your Nitrogen Generator’s Performance
By keeping an eye on your nitrogen generator’s consumption and output, you can identify patterns that may be impacting performance, such as leaks or reduced efficiency during certain days or times. Identifying these areas can lead to effective energy-saving solutions, such as repairing leaks, optimizing workflows, and other improvements.

Use Nitrogen Generators in Parallel
For large nitrogen flow capacity requirements it may be more efficient to use multiple nitrogen generators in parallel, especially if nitrogen flow requirements are variable. By using multiple nitrogen generators in parallel coupled with a well designed master control system, nitrogen generating flow capacity can be turned up or down depending on nitrogen flow capacity requirements. This capability can potentially reduce energy consumption and increase efficiency.

Consider Upgrading Your Nitrogen Generator
Upgrading nitrogen generators for energy savings could be an excellent investment for your business, especially if your current nitrogen generator is more than 10 years old. Great advances in CMS material efficiencies and nitrogen generator control systems have led to more energy-efficient designs that can greatly reduce operating costs, especially for high purity nitrogen generating systems.

Our Factory

NEWTEK is the LARGEST supplier and Manufacturer of PSA oxygen and nitrogen gas generators in China. We have been in continuously R&D for the on-site gas generators since 1987. Our long experience in advanced O2 and N2 generators designing and customization ensures the high energy saving,high quality and lowest investment cost for the client in market worldwide. Engaged in the design, production and sales of PSA oxygen generator, VPSA oxygen generator and other equipment.

productcate-1-1

Ultimate FAQ Guide to PSA Nitrogen Generator

Q: How do I choose a nitrogen generator?

A: While each system shares the same goal, Membrane nitrogen generators are generally used in applications that require a purity level that is below 99.5%. Conversely, PSA nitrogen generators are more commonly used where applications require purity levels to be higher than 99.5%.

Q: How efficient is a PSA nitrogen generator?

A: PSAs are ideal for generating high purity nitrogen up to 99.999% Product delivery pressures up to 170 PSIG (11.72 barg) PSA reliable, having 8 switching valves. PSA performance declines as temperature rises to a max of 104°F (40°C) (% depending on product purity).

Q: What is the PSA method for nitrogen generation?

A: PSA traps oxygen from the compressed air stream when molecules bind themselves to a carbon molecular sieve. This happens in two separate pressure vessels (tower A and tower B). Each of these is filled with a carbon molecular sieve that switches between a separation and regeneration process.

Q: How do you size a nitrogen generator?

A: Determine Your Nitrogen Demand. Sizing a nitrogen generator to your needs is like getting a tailor-made suit — you want it to fit perfectly.
Specify Purity Requirements.
Calculate the Required Flow Rate.
Consider Pressure.

Q: What is the life expectancy of a nitrogen generator?

A: PSA nitrogen generators are typically designed with an equipment life cycle of 20 to 25 years. Membrane nitrogen generators also have a long life cycle. Some manufacturer's membranes can last up to 15 years before replacement is required.

Q: What are the risks of nitrogen generators?

A: When nitrogen gas leaks in a confined space, it can rapidly reduce the oxygen concentration. Human beings require a certain level of oxygen in the air to respirate, and a drop below this level can lead to unconsciousness or even death.

Q: What is the difference between PSA and membrane nitrogen generator?

A: PSA systems are typically larger and heavier than membrane systems as they have pressure vessel adsorption beds and a lot more moving parts including valves and actuators Valve operation on PSA nitrogen generators are automatically controlled using a programmable logic controller or PLC.

Q: Do nitrogen generators need compressed air?

A: The principle of operation for a membrane nitrogen generator is where atmospheric air is compressed by an air compressor and passed through a hollow fibre membrane, filtering out parts of air (primarily oxygen) leaving behind a high purity nitrogen gas.

Q: What are the ventilation requirements for a nitrogen generator?

A: Regardless, wherever possible, a nitrogen generator should be located in an open, ventilated area. More importantly, most air compressors installed are air cooled and produce significant heat in the cooling process.

Q: How does the PSA system work?

A: During the process, gases are separated under pressure based on the species molecular characteristics and affinity for an adsorbent material. PSA is used to recover hydrogen from coking or conversion gases or to split oxygen and nitrogen from the air.

We're well-known as one of the leading psa nitrogen generator manufacturers and suppliers in China. If you're going to buy high quality psa nitrogen generator made in China, welcome to get more information from our factory.

nitrogen gas generator, PSA Nitrogen Gas Generator, PSA Nitrogen Gas Plant