PSA nitrogen machine is a new gas separation technology. It has been developed rapidly abroad since the end of 1960s and the beginning of 1970s. The principle of PSA nitrogen machine is to separate gas mixtures by using the difference of adsorption performance of molecular sieves for different gas molecules. It uses air as raw material and a kind of solid adsorbent pair with high efficiency and high selectivity. The selective adsorption of nitrogen and oxygen separates nitrogen and oxygen from air.
Wuxi Zhongheng Gas Equipment Manufacturing Co., Ltd. is a specialized manufacturer of gas separation equipment. It has advanced technical advantages in the nitrogen machine industry. Because of its focus, it is professional. With advanced science and technology, high quality and efficient service, it enjoys a good reputation in the industry and high-tech entities in many fields.
Process overview of PSA nitrogen machine:
At present, carbon molecular sieves and zeolite molecular sieves are widely used in the field of nitrogen and oxygen production. The separation of oxygen and nitrogen by molecular sieves is mainly based on the different diffusion rates of these two gases on the surface of molecular sieves. Carbon molecular sieves are carbon-based adsorbents with some characteristics of activated carbon and molecular sieves. The gas with smaller diameter diffuses faster and enters the solid phase of molecular sieve more frequently, so the nitrogen enrichment component can be obtained in the gas phase. After a period of time, the adsorption of oxygen on molecular sieves reaches equilibrium. According to the different characteristics of adsorption capacity of carbon molecular sieves to adsorbed gases under different pressures, reducing pressure makes carbon molecular sieves desorb oxygen. This process is called regeneration.
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