Newtech (Hangzhou) Energy Technology Co., Ltd

NEWTEK Group uses innovative gas separation technology to enrich high-purity oxygen from ambient air. This technology is called Pressure Swing Adsorption (PSA), which uses the selective adsorption characteristics of molecular sieves for nitrogen to achieve the separation of oxygen and nitrogen in the air.

 

The atmosphere contains 21% oxygen, 78% nitrogen and a small amount of inert gas. The PSA process uses special molecular sieve adsorbents (such as zeolites) to preferentially adsorb nitrogen under pressurized conditions to obtain an oxygen-rich mixed gas with an oxygen content of more than 93%.

 

The oxygen plant PSA usually consists of two separation containers loaded with molecular sieve adsorbents, a complete pneumatic system (including valves, filters, pressure regulators, etc.) and an oxygen storage tank. The entire process is monitored and regulated by an automatic control device. Our technology can provide a convenient source of high-purity oxygen for the medical field.

 

 

Air compression and pretreatment: Ambient air (78% nitrogen, 21% oxygen, <1% argon) is filtered, degreased and dried through a filter element, and the production pressure is automatically adjusted.

 

Adsorption enrichment: The pretreated air passes through a container loaded with a molecular sieve (zeolite). Since the molecular sieve has a strong selective adsorption effect on nitrogen, an oxygen-rich mixed gas is obtained at the outlet of the container, and the oxygen concentration can reach about 95%.

 

Buffer output: The oxygen enriched by the molecular sieve enters the buffer storage tank through the multi-functional distribution block, while the nitrogen adsorbed by the molecular sieve is discharged by desorption countercurrent and forced to be discharged into the external environment.

 

Pressure switching: Part of the generated oxygen-rich gas is used to regenerate the adsorbed nitrogen in another container (desorption), while ensuring that one container continues to produce an oxygen-rich gas flow, and the two containers cycle alternately.

 

Automatic control: The entire process is controlled by an automatic pneumatic system to control the switching balance of the container to ensure continuous and stable output of the oxygen product flow.

 

 

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