Twin-tower oxygen generation system utilizing pressure swing adsorption (PSA) technology
Two adsorption tower will be installed in parallel in PSA oxygen generator, one tower begins the adsorption phase while other tower regenerates by de-pressurizing. The PLC controller manages process valves with built-in logic for an automatic stop/start for continuous oxygen production. The whole system is composed of air purification system, air storage tank, separating system of nitrogen and oxygen, and oxygen buffer tank.
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 oxygen generators can be integrated for use as combustion aids with calcining furnaces and gas combustion furnaces.
Features
Installed with compressed air purifier and dryer to prolong the service life of molecular sieves.
Adopt advanced pneumatic shut-off valve for fast start and stop without leakage, can meet frequent usage with high reliability and service life.
Adopt automatic PLC controller with low annual operating failure.
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.
Our PSA oxygen generator can separate oxygen from compressed air utilizing zeolite molecular sieve (ZMS) when pressurized. As nitrogen has a higher diffusion rate in ZMS pores, the sieve will adsorb the nitrogen and moisture over oxygen, allowing the oxygen to pass as product gas at pressure. After de-pressurizing, the sieve releases adsorbed gases into the atmosphere, and the process can then be repeated.
Applications
Electric furnace steelmaking: decarburization, oxygen assisted heating, foam slag dissolving, metallurgical control and post-process heating
Wastewater treatment: aerobic aeration of activated sludge, pond oxygenation and ozone sterilization
Glass melting: oxygen combustion and solubilization, cutting, increasing glass production and extending furnace life
Pulp bleaching and papermaking: large volume oxygen of low price can help conversion of chlorine bleaching to oxygen-enriched bleaching, as well as support sewage treatment.
Non-ferrous metal smelting: oxygen will be for smelting steel, zinc, nickel, lead, etc. PSA is gradually replacing cryogenic method in this process
Field cutting construction: containerized or small oxygen generator can meet the requirements for oxygen used in field steel pipe, steel plate cutting.
Petrochemical and chemical industries: oxygen-enriched air can be used to replace atmospheric air to carry out oxidation reaction in petroleum and chemical processes, which can increase the reaction speed and the yield.
Ore treatment: used in production processes of precious metal such as gold to increase the extraction rate
Aquaculture: oxygen-enriched aeration can increase the dissolved oxygen volume in the water, largely increasing fish production and enabling intensive fish farming.
Fermentation: using oxygen-enriched air to replace atmospheric air to supply oxygen for aerobic fermentation can dramatically increase efficiency.
Drinking water: supply oxygen to the ozone generator for sterilization.
Technical Specifications
Model
Oxygen Production Nm³/h
Effective Gas Consumption m³/min
Inlet Diameter DN mm
Outlet Diameter DN mm
RCO-5
10
2.2
25
25
RCO-10
20
4.3
32
25
RCO-20
30
6.5
40
15
RCO-25
40
8.6
40
25
RCO-30
50
10.8
50
25
RCO-40
60
13
50
25
RCO-50
80
17.3
65
25
RCO-60
100
21.7
65
25
RCO-70
150
32.5
80
32
RCO-80
200
43.3
80
32
RCO-100
300
65
100
40
RCO-150
400
100.7
125
40
RCO-200
500
108
150
50
Q1: What is the product's physical size?
A: We provide customers with layout drawings for reference regarding the footprint. Our company can also make adjustments if the user's site space is insufficient.
Q2: What is the warranty period?
A: The entire machine comes with a one-year warranty.
Q3: Are there any accessories or maintenance parts that need to be replaced?
A: The air compressor requires maintenance every 3000 hours, and filter elements need to be replaced every 8000 hours.
Q4: Can you send engineers to the site for installation and commissioning guidance?
A: Yes, we can. The oxygen system operation is relatively straightforward. Generally, on-site installation and commissioning by our engineers are not required; users can install and commission simply by following our drawings and manuals. For any issues, you can contact our after-sales personnel at any time.
Q5: What are the equipment's operating costs?
A: The entire system is electrically driven. Apart from normal air compressor maintenance and filter element replacement, other components typically do not require replacement for 5-6 years, resulting in low operating costs.
Anti-oxidation is necessary in the whole production process of rubber & tyre raw materials. As an inertia gas, nitrogen can act as an antioxidant in the preservation of raw materials in rubber tires, rubber vulcanization, molding, inflatable packaging, etc.
In the textile industry, nitrogen generator can supply nitrogen gas to protect the textiles from oxidation and damage during the production process, preventing color default caused by oxidation.
Since high purity nitrogen gas is required as carrier gas or protective gas in the production process of electronics, so that nitrogen generator is essential in the production of electronic components.
With the increasing attention paid to environmental protection, more and more enterprises began to invest on the low-carbon emission of waste water and materials, for example, the oil sludge produced by petroleum mining, especially hydrocarbon gases, should be heated without oxygen in the heat treatment process for the safety and processing effect.
Foreign manufacturers producing and cutting stainless steel plates require nitrogen generators to be used with their laser cutting machines to achieve anti-oxidation, improve cutting quality, accelerate cutting speed, and reduce costs.
A Thai pharmaceutical factory, primarily producing injectable animal medications, requires high-purity nitrogen from a nitrogen generator to prevent drug oxidation and deterioration during production, packaging, and storage.
The customer wants to design the whole nitrogen generator as a skid-mounted unit, which reduces the floor space and will be convenient for transportation.
A large domestic enterprise producing pharmaceutical glass required a turnkey project for a large oxygen generator. They needed to use an oxygen generator to produce a large amount of oxygen to increase the heat generated by natural gas from their sealing furnaces, thereby saving natural gas consumption and reducing costs.
This project requires mobile nitrogen generator for oil exploitation with the function of automatic control, and remote control by mobile phone and computer.
The customer needs our gas purification equipment to be customized according to their project. Pressure vessel and welding process needs to be compliant with ASME certification.
PSA nitrogen generation is a technology to separate nitrogen from air by the adsorption ability of carbon molecular sieve under pressure by air compressor.
Our modular nitrogen generator has a compact structure, adopting non-pressure container molded in aluminum alloy die-casting and pipeline made of high strength alloy steel with quick-connect fittings.
Our membrane nitrogen generator is designed with membrane containing a bundle of hollow fibers with holes small enough to allow the smaller oxygen molecules, as well as other molecules such as CO2, water vapor to exit through them under pressure and let nitrogen molecules remain in the fiber holes.
Our VPSA oxygen generator is able to generate oxygen with purity between 90% and 95%. It is mainly composed of air blower, vacuum bump, switching valve and oxygen buffer tank.
Our modular oxygen generator has a compact structure, adopting non-pressure container molded in aluminum alloy die-casting and pipeline made of high strength alloy steel with quick-connect fittings.
