Newtech (Hangzhou) Energy Technology Co., Ltd

PPSA oxygen production is a cyclic process that separates oxygen and nitrogen in the air by changing the pressure at a certain temperature according to the different adsorption amounts of oxygen and nitrogen in the air on the molecular sieve at different pressures.

 

psa based oxygen plant production does not require specific raw materials, only air; it is energy-saving and economical, and the power consumption is only slightly greater than that of an air compressor; it has a high degree of automation and can produce a steady stream of oxygen without human intervention; the product concentration is high, and the oxygen concentration produced by this method can generally reach 90% to 96%, and can even reach 99% or higher with other technologies.

 

psa based oxygen plant technology is relatively mature, and its application in small and medium-sized air separation equipment, especially medical oxygen production and supply equipment, is becoming more and more extensive, and there is also a trend of gradually developing towards large and medium-sized.

 

 

1) The oxygen production effects of different types of molecular sieves vary greatly, among which LiX molecular sieve has the best performance. The use of LiX molecular sieve can greatly reduce the volume of the adsorption tower, reduce the air-to-oxygen ratio, and improve the performance of the whole machine.

2) Switching time is an important process parameter for pressure swing adsorption oxygen production, and the optimal switching time for a specific device needs to be determined by experiment.

3) Increasing the pressure equalization step can effectively increase the oxygen content and recovery rate, which has the effect of energy saving and consumption reduction. When the oxygen production process increases the pressure equalization step, the oxygen content and recovery rate increase significantly. Therefore, for small pressure swing adsorption oxygen production devices, a one-step pressure equalization process with a relatively simple process and less equipment is generally used.

4) Increasing the height-to-diameter ratio of the adsorption tower is conducive to improving the oxygen production effect of small pressure swing adsorption oxygen production. However, when the height-to-diameter ratio is too large, the utilization rate of the molecular sieve will be reduced, and the influence of the wall effect will be significant, thus making the oxygen production effect worse.

5) Increasing the volume of the gas storage tank is conducive to increasing the oxygen content and reducing the fluctuation value.

 

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