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PSA Nitrogen Generator

    The equipment adopts the PSA (Pressure Swing Adsorption), using carbon molecular sieve (CMS) as the adsorbent to separate nitrogen from air.


Overview

PSA: Generally speaking, the higher the gas pressure, the greater the adsorption capacity of the adsorbent, and vice versa. Therefore, the periodic fluctuation of gas pressure is utilized to conduct adsorption under elevated pressure and desorption under reduced pressure, to realize continuous gas separation. This is the PSA cycle process.

CMS: Activated carbon particles with abundant micropores processed by a special pore-regulating treatment. The CMS used for air separation features a unique microporous structure, and due to the tiny difference in the kinetic diameters of oxygen and nitrogen molecules, it adsorbs oxygen molecules at a higher rate than nitrogen molecules.

This system is mainly composed of air compressor, compressed air purification equipment, PSA air separation nitrogen generator and booster, and is equipped with corresponding air buffer tanks, nitrogen buffer tanks and other devices as required.

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Basic process

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This system is mainly composed of air compressor, compressed air purification equipment, PSA air separation nitrogen generator and booster, and is equipped with corresponding air buffer tanks, nitrogen buffer tanks and other devices as required.

Features of Nitrogen Generation

● Large flange structure enables the SSF snowstorm filling of CMS.

● Specially designed filling equipment achieves maximum compaction and uniformity of CMS filling. The filling density is at least 2.5% higher than the industry average. This fundamentally eliminates creep wear and the "channeling effect" of CMS, resulting in long service life, high utilization rate of CMS and low feed air consumption.

● Multi-layer orifice plate structures with scientifically through-hole arrangement are installed on both the upper and lower heads of the adsorption towers, ensuring distribute gas flow evenly with minimal space occupation. This significantly improves the utilization rates of CMS and raw air, completely avoids local impact on CMS, and extends their service life.

● The precisely calculated and experimentally verified "pipeline flow velocity control technology" prevents collision abrasion caused by the "boiling phenomenon" of CMS at the top of adsorption towers without additional external compression.

● The advanced mid-bed pressure equalization process (also known as unequal potential pressure equalization) functions as an optimized multi-tower structure connected pre-adsorption and purification adsorption sections. It produces nitrogen with higher purity, up to a maximum of 99.9995%. Meanwhile, this process reduces raw air consumption, further maximizes the performance of CMS, and delivers remarkable energy savings of 10% to 30%.

● The control system adopts high-end configurations including Siemens PLC and Weidmüller electrical components to guarantee stable operation.

● Special CMS are used as adsorbents., co-developed with professional adsorbent manufacturers

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● Using Siemens touch screen as a user-friendly human-machine interface.



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