Oxygen Generator Working Principle

According to the principle of pressure swing adsorption (PSA), we utilize zeolite molecular sieve as adsorbent, because zeolite molecular sieve has the characteristics of selective adsorption, nitrogen is adsorbed by zeolite molecular sieve, oxygen is enriched in the gas phase, nitrogen and oxygen separation is achieved under the action of pressure swing adsorption (PSA). Meanwhile, we adopt the two-adsorption tower process, one tower is used for adsorption and oxygen production; the other tower is used for desorption and regeneration. The PLC intelligent program controls the pneumatic angle valve opening and closing, so that the two towers cycle alternately, continuously producing high-quality oxygen.

High Purity Oxygen Generator 

Technical indicators:

• Oxygen production: 1 ~ 1000Nm3/hr

• Oxygen purity: 28 ~ 95%

• Oxygen pressure: 0 ~ 0.5Mpa (0.5 ~ 15.0Mpa is also available)

• Dew point: ≤-45 ~ -65℃

Technical characteristics:

• Imported pneumatic angle valve, service lifespan for more than 3 million times.

• Siemens PLC intelligent program controller, easy to operate, stable operation.

• Special alumina ceramic ball diffusion technology to make the air distribution uniform, improve the adsorption efficiency of the adsorbent.

• Self-powered cylinder pressing device (Patent number: ZL-200820168079.9) to protect the service lifespan of carbon molecular sieve.

• Original centrifugal vibration filling mode (Patent number: ZL-200820168078.4) effectively ensures the maximum amount of filling.

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Advatages

High oxygen purity

PSA oxygen generator plants allow us to produce high-purity oxygen from compressed air. The oxygen purity may also be ensured by cryogenic systems, but they are considerably more complex and justified only by large consumption volumes. The oxygen generators use ZMS (Zeolite Molecular Sieve) technology to produce a continuously supply of ultra-high purity oxygen and are available with internal compressors or without.

Low operating costs

By replacing the outdated air separation plants with Rocky latest air separation technology, savings from the cost of N2/O2 production are largely exceed by 50%

The net cost of oxygen produced by oxygen generators is significantly less than the cost of bottled or liquefied oxygen.

Oxygen Generators Create Less Impact on the Environment

Generating oxygen gas is a sustainable, environmentally friendly and energy efficient approach to provide pure and clean oxygen gas. Compared to the energy needed for a cryogenic air separation plant and the energy needed to transport the liquid oxygen from the plant to the facility, generated oxygen consumes less energy and creates far fewer greenhouse gases.

Rocky KOB series PSA Oxygen Generator Plants

Product Features

Fully Automation, All systems are designed for un-attended operation and automatic oxygen demand adjustment.

Lower Space Requirement, The design and instrumentation make the plant size very compact. Assembled on skids, prefabricated and supplied from factory.

Fast Start-up, Start-up time is about 30 minutes to get desired Oxygen purity. These units can be switched ON & OFF as per oxygen demand changes.

High Reliability, It's very reliable for continuous and steady operation with constant oxygen purity. Plant availability time is better than 93% always.

Zeolite Molecular Sieves Lifespan: Expected Zeolite Molecular Sieves lifespan is more than 10-years.

Low investment and energy consumption

Simple operation and maintenance

Functional Specification

The systems adopt the one-click start way, Air compressor, Refrigerated Air Dryer, Adsorption dryer, Generator will start to work following the program one by one.

The oxygen generator equipped with unqualified oxygen gas warning alarm and automatic vent out, therefore, it can make sure that all oxygen that goes into the pipeline is high quality.

The oxygen generator equipped with colorful touch screen from Siemens Germany, it can display the running condition, purity, pressure, and nitrogen rate flow of the whole system on-line; It can also notify the maintenance time, record the trouble alarm and download the operating data.