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.
A nitrogen production plant is a machine that extracts nitrogen from the ambient air. By separating nitrogen molecules from oxygen and other components, the nitrogen production plant produces highly-pure nitrogen gas suitable for your industrial and manufacturing processes.
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.
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.
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.
Large-scale industrial nitrogen production generally adopts the traditional cryogenic method, that is, first deep-cold and liquefy the air, and then distill, separate and extract the oxygen, nitrogen and other components through the different boiling points of the components in the air.
Nitrogen Generators for Industrial Applications
The main features of nitrogen generators produced by this technology are simple control, fast speed from startup to nitrogen output, and continuous nitrogen supply using dual towers, which are more suitable for industrial applications such as tire production.
With a modular PSA nitrogen generator, you can get rid of the inconvenience of gas cylinders and liquid nitrogen tanks. Nitrogen is continuously and reliably generated at your site, requiring only a compressed air supply source.
Container type nitrogen plant is a device that can produce nitrogen in a mobile state, usually composed of a container and nitrogen production equipment. It mainly separates oxygen and other impurities in the air through compressed air and separation and purification process to produce high-purity nitrogen.
PSA nitrogen generator is a device used to generate high-purity nitrogen from compressed air. Its working principle is based on the principle of Pressure Swing Adsorption (PSA). It is mainly composed of an intake system, an adsorber, a gas tank and a control system.
Containerized PSA Nitrogen Generator
The advantages of producing your own nitrogen are clear compared to purchasing it. You can control the gas supply at a lower cost and with a lower emissions footprint, and reduce logistical issues and safety concerns.
Advantages of Nitrogen Production Plant
Cost-Effective
Renting nitrogen cylinders may seem like your most convenient option, however, it could end up costing you more money long-term. These cylinders are prone to leakage, meaning they send out unusable nitrogen into the atmosphere and waste your money. Conversely, industrial nitrogen production plants take in the air, remove the oxygen and store nitrogen gas for later use, thereby eliminating your costly nitrogen cylinder deliveries.
01
Maintain Your Boilers
Power plant boilers are designed to generate steam to produce electricity. While this function is highly efficient, boilers can pose certain challenges if they are not being used. For instance, any leftover moisture can lead to rusting and corrosion within the structure, resulting in costly repairs and replacements. A slow-flow nitrogen purge works by displacing oxygen to reduce oxidization.
02
Improves Efficiency
Ordering your nitrogen supply and waiting for deliveries can significantly impact your day-to-day operations. Eliminate the risk of running out due to missed deliveries with an on-site nitrogen production plant and benefit from a constant supply of nitrogen gas. Our equipment is also the safer and more reliable option rather than tasking employees with handling bulky cylinders or tanks.
03
Increase Employee Safety
Providing your employees with a safe work environment should be a top priority. Liquid nitrogen exposure can be very dangerous and cause serious burns. An on-site industrial nitrogen production plant drastically reduces the potential for workers to sustain injuries related to cylinder leaks during the transporting process.
04
Environmentally Friendly
Mitigate your impact on the environment by using an on-site nitrogen production plant. Create your own nitrogen gas from the resources that are already at your disposal while also reducing the amount of energy it takes to produce it.
05
10 Industries That Could Benefit from a Nitrogen Production Plant
Food and Beverages Packaging
It is very common for food packaging companies to use compressed nitrogen and nitrogen-CO2 gas to control oxygen levels in perishable food packaging such as fruits, vegetables, nuts, dairy products, meat, and more. Known as Modified Atmosphere Packaging (MAP), this process preserve freshness, maintains flavor, extends the shelf life of foods and beverages, and provides a cushion around food to protect it during transport. Nitrogen is also used for beverage storage, CO2 mixing, and beverage dispensing such as for breweries, distilleries, and juice packagers.
Pharmaceuticals
Nitrogen gas is used for many pharmaceutical purposes, specifically for blanketing, inerting, and sparging. It reduces moisture and oxygen in packaging to extend the shelf life and stability of the drugs. Nitrogen is also used in anesthetics and cryopreservation to preserve sperm, egg, blood, and other biological specimens.
Chemical Blanketing
Nitrogen is most used for chemical tank and vat blanketing and is used to lower oxygen levels. Chemical blanketing with nitrogen will prevent fires and explosions in dangerous atmospheres that are created when handling volatile materials in chemical plants and manufacturing facilities by reducing the levels of oxygen under the material's explosive limits. Nitrogen blanketing also preserves the quality of chemicals that react negatively to the presence of oxygen.
Electronics & Soldering
In the electronics industry, nitrogen gas is used while soldering. Soldering is the process of fusing two electronic components to create a permanent connection. Nitrogen is used to reduce surface tension to create a clean break away from the electrical bond and to lower the amount of dross created in the soldering process.
Heat Treating
Kilns and furnaces used for heat treating have one enemy-oxygen. Oxygen discolors the product and can dangerously weaken it. Nitrogen is the ideal gas for providing an inert atmosphere that will avoid any oxidation issues in the heat-treating process.
Laboratory
For many industry laboratories, there must be a specific environment to control humidity, temperature, and oxygen levels while running tests and experiments with laboratory instruments and glove boxes. For many of these studies, nitrogen gas must be used.
Laser Cutting
Nitrogen gas is widely used in laser cutting applications for beam purge and as an assist gas for the cutting process itself. The use of nitrogen gas in the cutting process ensures a clean, smooth cut and prevents discoloration of the cut edge associated with oxidation. The use of nitrogen gas is particularly critical when cutting mild steel or stainless steel.
Power Plants
Nitrogen gas is used for general purging and blanketing the specially treated water used for power plant operation. The most effective way to get enough nitrogen for these operations while saving money is by installing an onsite nitrogen production plant.
Printing
Nitrogen can be used for some printing applications such as for drying materials and preventing oxygen contamination for film production and separation. Nitrogen is beneficial to ensure purity of these printed products, and by using an onsite nitrogen generating system, printers can save hundreds of thousands of dollars while getting the levels of nitrogen they need for manufacturing.
Tire Inflation
Nitrogen provides various benefits when used for tire inflation. As nitrogen molecules are larger than oxygen molecules the use of nitrogen gas in tires allows them to maintain tire pressure much longer and improving tire pressure retention leads to better gas mileage. Nitrogen is commonly used for aircraft tires and large off-road construction and mining vehicles because it substantially improves tire life and prevents explosions in the event of a tire blow out.
Components of Nitrogen Production Plant
Air tank
The air tank is equipped with a safety valve, a butterfly valve, a pressure gauge, etc., which can ensure the smooth use of the system gas when the system is switched, improve the quality of the compressed air entering the adsorber, and extend the life of the molecular sieve.
PSA oxygen-nitrogen separation component
The PSA nitrogen production process, through programmable control of the opening and closing of the pneumatic valve, completes the process of alternating cycle of pressure adsorption and pressure reduction desorption of the two towers A and B, so that oxygen and nitrogen are separated and the required nitrogen is finally obtained. The adsorption capacity of carbon molecular sieve for oxygen varies with the increase or decrease of pressure. Under the condition of a certain volume, the nitrogen production decreases and the nitrogen production concentration increases. Taking advantage of this characteristic, pressure swing adsorption is used to separate oxygen and nitrogen, so that the concentration of the produced nitrogen can be adjusted.
Nitrogen storage tank component
The function of the nitrogen storage tank component is to buffer the pressure change of the finished gas during the adsorption process according to N2. The frequent opening and closing of the corresponding program-controlled valve ensures that the entire device operates according to a certain procedure to ensure the purity and flow stability of the output nitrogen.
Electrical control system
The control system adopts imported fully automatic PLC control, which can realize unattended automatic operation of the nitrogen production device.
How Much Does a Nitrogen Production Plant Cost?
The cost of a nitrogen production plant will depend on the volume and purity of gas you want it to produce. A Pressure Swing Adsorption (PSA) nitrogen production plant - the most commonly used technology for onsite nitrogen production - can start at as little as $3,500, though large systems may run to more than $100,000. Membrane systems are more affordable, starting as low as $1,000 for a small system, but have lower capacity and lower purity than a PSA nitrogen production plant.
PSA nitrogen production plants can produce nitrogen gas ranging in purities from 95% to 99.999%. The higher the purity, the smaller the volume of N2 produced. That means you will need a larger nitrogen production plant to produce a required volume of nitrogen gas at a very high purity vs. a lower purity. For maximum value, it is important to size your nitrogen production plant properly for your application, taking into consideration both your volume and purity requirements.
The return on investment for a nitrogen generation system is usually quite fast, with an ROI of as little as 6-18 months depending on your nitrogen demand. That's because operating costs for nitrogen generation are quite low, significantly less than the cost of a contract supply of nitrogen. The more nitrogen you use, the faster you will see the return. Onsite generation using either a membrane or PSA system is much cheaper than purchasing nitrogen cylinders, liquid nitrogen dewars, or bulk liquid nitrogen.
Membrane Nitrogen Generator
This system forces air through semi-permeable membrane fibers, which separates the gases and compounds. Ambient air consists of approximately 78% nitrogen and 21% oxygen, along with a spattering of other elements. The process of creating purified nitrogen gas starts with an air compressor, which sends pressurized, ambient air through the nitrogen generator's set of coalescing pre-filters to remove particulates, oil and moisture. The pre-filters extend the life of the main filter: the nitrogen membrane module.
Because nitrogen is a "slower" gas than oxygen (and carbon dioxide and water), it will not diffuse through the membrane in the time of exposure; oxygen's greater solubility makes it more likely to permeate the membrane. The other air leaves the filter, and the nitrogen continues to a separate container. No chemicals, no hassle - just an occasional filter change and a simple system that functions based on the physical properties of ambient air, which creates up to 99.9% pure nitrogen - perfect for the majority of laboratory uses.
Pressure Swing Adsorption (PSA) Nitrogen Generator
Another type of nitrogen filtration, typically used in ultra-pure nitrogen applications, is pressure swing adsorption (PSA). The PSA nitrogen generator system uses multiple cylinders that take turns bearing the pressure - the compressed air blows into one side, into a filter called a Carbon Molecular Sieve (CMS) that adsorbs almost all elements except N2, then switches to use the other side while the first one is blown clean with pure nitrogen to ready it for use to isolate more nitrogen. It seems like a far more convoluted method than the membrane - and it absolutely is - but if the task requires 99.999% pure nitrogen, that's the way to go. The space required for PSA takes more than the nitrogen membrane module, so smaller cleanrooms and laboratories might favor the more economical method.
How Membrane and PSA Nitrogen Production Plants Revolutionize Chemical Processing
Onsite Production
Generating nitrogen onsite eliminates the dependency on external suppliers. With membrane and PSA systems, facilities can produce their own nitrogen, ensuring a continuous, reliable supply. This autonomy reduces the risk of disruptions due to delayed deliveries.
Substantial Cost Savings
Onsite generated nitrogen is a fraction of the cost of conventionally supplied nitrogen and it also eliminates delivery expenses. Businesses will achieve significant operating cost savings.
Flexibility and Control
Nitrogen generators provide the flexibility to produce nitrogen at a required nitrogen purity level and flow rate. Not only does this significantly lower nitrogen costs but this adaptability also allows facilities to optimize their processes, ensuring the right conditions for each application.
Environmentally Friendly
Producing nitrogen onsite reduces transportation emissions, contributing to a greener, more sustainable operation. Businesses can take a proactive approach to environmental responsibility by minimizing their carbon footprint.
Compact Design
One of the benefits of nitrogen generators is that they boast a compact design, requiring less floor space than traditional bulk storage tanks. This space-saving feature is particularly beneficial for facilities with limited room for large-scale equipment.
Easy Maintenance
The simplicity of operation and minimal maintenance requirements make nitrogen generators a practical choice for busy facilities. With straightforward upkeep, businesses can focus on their core operations without the burden of complex maintenance tasks.
8 Energy-Saving Tips and Tricks for Nitrogen Production Plants
Choose the Right Nitrogen Production Plant
There are two main types of nitrogen generating systems to choose from: membrane and pressure swing adsorption (PSA). Both work by separating nitrogen from the air, but they do so by using different methods. PSA nitrogen production plants 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 production plants use a semi-permeable membrane to filter out the oxygen molecules in a stream of compressed air.
Optimize Your Nitrogen Production Plant's Flow Rate
If you want to ensure that your nitrogen production plant 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 production plants, looking into options for improving the compressed air system's energy efficiency is crucial. nitrogen production plants 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 production plants. 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 Production Plant's Performance
By keeping an eye on your nitrogen production plant'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 Production Plants in Parallel
For large nitrogen flow capacity requirements it may be more efficient to use multiple nitrogen production plants in parallel, especially if nitrogen flow requirements are variable. By using multiple nitrogen production plants 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. This approach allows nitrogen production plants to be sized appropriately to meet specific needs, avoiding wasted energy on an oversized system. Carefully managing nitrogen supply and ensuring nitrogen production plants work in harmony allows businesses to increase productivity and reduce costs over the long term.
Consider Upgrading Your Nitrogen Production Plant
Upgrading nitrogen production plants for energy savings could be an excellent investment for your business, especially if your current nitrogen production plant is more than 10 years old. Great advances in CMS material efficiencies and nitrogen production plant 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.
Ultimate FAQ Guide to Nitrogen Production Plant
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