Oxygen accounts for about 20.9% of the air and is one of the main components of the earth's atmosphere. It is also the most important substance for all life on earth. In nature, oxygen is mainly produced by photosynthesis of green plants and cyanobacteria. Photosynthesis is the largest process on earth to synthesize organic matter and release oxygen, providing organic matter and oxygen for almost all life activities. At the same time, the oxygen released by photosynthesis is also the original source of oxygen in the atmosphere.
The high electronegativity of oxygen atoms makes oxygen highly oxidizing. Therefore, oxygen of different purities is widely used in oxygen-enriched combustion, metal smelting, metal welding, pulp bleaching, water supply and drainage, medical rescue, aerospace and many other fields. In particular, with the development of social economy, people have higher and higher requirements for the water quality indicators and safety of domestic and production water, and the requirements for the quality of living water environment are also increasing, which puts higher requirements on water treatment process technology in water supply and drainage. At the same time, with the development and prosperity of the industry, the competition between various water treatment process equipment and technologies is becoming increasingly fierce, and the economic efficiency of process technology has become one of the most important indicators for evaluating the advancement and practicality of process technology. For this reason, the use of high-purity oxygen as an important part of various new water treatment technologies and processes has become a hot topic in the field of water supply and drainage application research, such as pure oxygen aeration, ozone sterilization, advanced oxidation, etc. NEWEK, as a professional gas equipment supplier expert, provides the world with safe, reliable, economical and efficient high-purity oxygen generator machine for industrial use.
PSA industrial oxygen generators 95% to 99%
PSA (Pressure Swing Adsorption) industrial oxygen generators are widely used in various industries to produce oxygen with a purity range of 95% to 99%. These generators work by separating oxygen from air through a cyclic process involving adsorption and desorption of gases on a molecular sieve material.
The PSA process typically involves the following steps:
Compression: Ambient air is compressed to an elevated pressure.
Adsorption: The compressed air is passed through one or more vessels containing a molecular sieve material, such as zeolites or carbon molecular sieves. These materials selectively adsorb nitrogen, leaving behind a concentrated stream of oxygen.
Desorption: Once the adsorbent bed becomes saturated with nitrogen, the pressure is reduced, allowing the adsorbed nitrogen to desorb from the molecular sieve.
Purging: A small portion of the oxygen product is used to purge the desorbed nitrogen from the bed, preparing it for the next adsorption cycle.
The adsorption and desorption cycles are carried out in a cyclical manner, with multiple vessels operating in a staggered sequence to ensure a continuous supply of oxygen.
PSA oxygen generators are widely used in various industrial applications, including:
Metalworking: Oxy-fuel cutting, welding, and other metal fabrication processes.
Medical applications: Oxygen supply for hospitals, respiratory therapy, and oxygen concentrators.
Chemical processing: Oxidation reactions, purging, and blanketing applications.
Wastewater treatment: Aeration and oxidation processes.
Glass manufacturing: Oxy-fuel combustion for furnaces.
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