Nitrogen generation system utilizing pressure swing adsorption (PSA) technology
Our twin tower PSA nitrogen generator is available in different production specifications to meet various requirements. It is able to produce nitrogen with different purities ranging from 97%, 99.9%, 99.99%, to 99.999%. If your requirements still cannot be met, we can also customize the PSA nitrogen generator according to your needs. The flexibility and efficiency of our nitrogen generator makes it suitable for different industries, including but not limited to metallurgical heat treatment, oil and gas, chemical and pharmaceutical, food, lithium-ion battery, PV, electronics industries, etc.
Every project is custom-tailored. We actively listen to your needs to design the optimal solution for you. Based on your site requirements, we offer a choice between standard configurations and optional advanced configurations.
We specialize in custom PSA systems, meticulously designing complete nitrogen generation solutions based on your specific application scope, capacity, purity, pressure, environmental requirements, and altitude.
Our customized engineering projects include solutions for: metallurgical heat treatment plants, oil and gas companies, chemical and pharmaceutical factories, food packaging plants, environmental protection companies, and more. With over two decades of accumulated experience, we can accurately provide clients with the best and most reasonable customized proposals.
Integration Capability
Our tower-type nitrogen generators can be integrated for use with equipment such as laser cutting machines, annealing furnaces, and food/pharmaceutical packaging machines.
Applications
Metallurgical heat treatment industry: can be used in the process of steelmaking converter sealing, blast furnace roof sealing, blast furnace ironmaking pulverized coal injection, continuous casting and rolling, steel annealing, stress relieving, aging, quenching, carburizing, nitrogen-carbon co-infiltration, nitriding, vacuum quenching and other nitrogen-based atmosphere heat treatment, metal welding and powder metallurgy sintering, as well as cleaning, dilution of gas.
Oil and gas industry: can be used in the transportation, storage and extraction of oil and gas, protection during transportation of gas drive devices and instrumentation, maintaining the pressure of oil and gas wells, maintaining and improving the process of oil and gas production, completion and maintenance of oil and gas wells, etc.
Chemical and pharmaceutical industries: can be used in nitrogen sealing during production, nitrogen protection, pipeline purging, material transportation and distribution, preventing oxygen contamination of raw materials and in production processes.
Grain, oil, and foodstuffs: can be used in grain storage to prevent spontaneous combustion and insect infestation, and used in oil storage and filling nitrogen sealing for bacterial inhibition, shelf life extension, fermentation control, and odor inhibition. Nitrogen protection in the whole process of food and beverage production and packaging can effectively prevent food from deteriorating, keep freshness and maintain good taste, as well as extend the shelf life.
Electronics industry: can be used for lead-free reflow soldering, wave soldering, selective soldering, blowing and encapsulation, high-precision chip sealing, PCB baking, etc.
Features
Adopting world-leading molecular sieve filling technology - snow storm filling to improve the filling density to make sure the molecular sieve is well-compressed, effectively prevent the molecular sieve from losing efficacy, in order to prolong the service life;
Adopting German Bauder valves, which can operate 3 million times without defections;
Adopting German Siemens PLC control system;
More stable performance with an average of 10,000 hours of errorless operation.
HMI (Human-Machine Interface): Features intelligent, one-button control with English subtitles and a touchscreen display for real-time monitoring of nitrogen flow, purity, equipment inlet/outlet pressure, and fault information. It also allows for online modification of equipment operating parameters.
Selection of Renowned Brand Components: We offer optional components from leading brands, including Atlas Copco air compressors, Japan Iwatani molecular sieves, Siemens controllers, Airtac electronic components, Burkert (Germany) valves, and GEMÜ (Germany) valves.
Remote Real-time Equipment Monitoring:
1). Reserved RS485 communication ports (Modbus or Profibus communication protocols) or Industrial Ethernet communication ports are available to facilitate user integration of nitrogen generation equipment signals into their DCS (Distributed Control System) for real-time monitoring.
2). We can directly provide industrial PCs, monitoring software, printers, etc., for seamless integration with the nitrogen generation equipment's control system for real-time monitoring.
3). An Internet-based intelligent IoT (Internet of Things) system can also be provided for intelligent analysis and monitoring.
Automatic Purging of Off-Spec Nitrogen:
1). A product nitrogen sampling port is provided for the analyzer to sample and determine if the product nitrogen purity meets specifications.
2). If purity is off-spec, the system automatically switches to the off-spec gas path to vent nitrogen.
3). Once purity returns to specification, it automatically switches back to the qualified gas path to deliver product nitrogen to the consumption end.
Unique Cylinder Compaction Technology:
Automatic compensation for molecular sieve loosening ensures the molecular sieve remains consistently compacted. This effectively extends the lifespan of the molecular sieve and guarantees reliable, long-term operation of the equipment.
Adsorption Tower Structure Technology:
Further enhances molecular sieve utilization and improves equipment performance. The unique adsorption tower structure design effectively changes the speed and direction of internal airflow, reducing dead spaces within the tower. This further boosts molecular sieve utilization while preventing high-pressure airflow from impacting the molecular sieve, reducing pulverization. These factors contribute to extending molecular sieve lifespan, improving adsorption performance, and reducing energy consumption.
Cylinder Compaction Device
Online Nitrogen Purity & Pressure Monitoring
Molecular Sieve Filling Vibration Platform
Nitrogen Flow Monitoring
Burkert (Germany) Pneumatic Valve
Burkert (Germany) Solenoid Valve
How PSA Nitrogen Generation Works
PSA nitrogen generation is a technology to separate nitrogen from air by the adsorption ability of carbon molecular sieve under pressure by air compressor. After the air is compressed and purified (removing the oil, water and dust, etc.) before transferring into the absorption tower filled with carbon molecular sieves (CMS), the oxygen molecule will be adsorbed by carbon molecular sieve, while nitrogen molecules are too large so that they will be remained in the air. Those nitrogen molecules will pass through the tower into the nitrogen buffer tank, while oxygen molecules remain in the CMS. The adsorption process is performed at certain pressure, after that the atmospheric pressure will be resumed, and the adsorbed oxygen molecules will be escaped from CMS, pass the bottom of the tower through the exhaust silencing muffler into the air, and the CMS is available to be reused. Usually PSA nitrogen generator adopts double adsorption towers in parallel, they will be used alternatively for the adsorption and collection of the nitrogen under different pressure, continuously supporting the separation of oxygen and nitrogen. The above process will be automatically controlled by PLC system.
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