Working Principle of PSA Nitrogen Generators

Nitrogen generators, with clean compressed air as the raw material, works based on the technology of pressure swing absorption (PSA). PSA system, made of double towers packed with carbon molecular sieves (CMS), can separate nitrogen directly from the depressed air, which is based on the fact that the different gases tend to have different diffusion speed and be attracted to the CMS more or less strongly. Because the diffusion speed of oxygen molecules through micro pores of CMS is much faster than that of nitrogen molecules, thus PSA system can allow to get a nitrogen-enriched gas. Under a certain pressure, CMS has different absorption capacity to different gas. By use of this characteristic, programmable controller can control the absorption process through electromagnetic valve to fulfil the nitrogen separation purpose to get desired-concentration of nitrogen gas. PSA is a relatively mature and reliable approach among the technologies for the separation of gas today.

Introduction of  Nitrogen Generator

Has advanced technology and excellent facilities this nitrogen generator boasts of many innovation features as follows:

1.Adopt the most trustworthy, mature PSA form in the world combined with unique technological process, optimized piping design and advanced filling technology to effectively avoid CMS stripping and tunnel effect produced in the absorption tower for higher gas separation performance. As saving energy, it can also generate high concentration of nitrogen up to 97& to 99.9%, and even up to 99.999% upon request.

2. High-quality nitrogen gas can meet requirements of different industries: if equipped with a high-precision filter, it can make the particle smaller than 0.01 μm and oil content less than 0.01ppm in the nitrogen gas; if equipped with a absorption dryer and bacteria free filter, it can generate high-quality nitrogen gas to meet the high requirements in the special industries like LCD, quartz oscillator, food and pharmaceutical.

3.Low operation cost: This nitrogen generator can produce your desired concentration of nitrogen with clean compressed air as the raw material. It does not require any chemical products. The total cost only accounts for 10~35% of the cost entailed for buying liquid nitrogen or gas nitrogen, so you can save a large amount of expenditures.

4. Advanced automatic operation: a nitrogen purity analytical device, which is independently developed, can make real-time monitor to the purity of nitrogen gas. If the nitrogen gas is not up to requirement, it will not be discharged. Therefore, it can avoid products from the descent of the quality due to impure gas. Besides, reliable PLC control can realize 24-hour automatic operation.
Features of the Nitrogen Generator
High Efficient: Internationally advanced molecular sieve technology and unique compression technology allow the molecular sieve hard to be atomized, thus extending its service life; meanwhile, it can reduce gas inlet and save above 20% energy.
High Safety: Outfitted with a correct analytical device and reliable valve control, the product features reliable performance, low fault rate, high nitrogen purity, stable flow and no potential safety threat from the high-pressure gas storage equipment.
More Convenient: Advanced piping system design, intelligent auto control and knob operation allow reliable automatic production.