Molecular Sieve for Oxygen Purification
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Molecular sieves possess numerous functions, including functioning as desiccant agents and absorbing water, moisture, and humidity from liquids, oils, and gasses. They also act as catalysts, eliminating nitrogen from oxygen to yield pure oxygen. This purification process is usually carried out with modern PSA (Pressure Swing Adsorption) technology. PSA oxygen generation uses a 13X molecular filter in bead and pellet form to successfully purify oxygen. This product, intended to improve the effectiveness of healthcare procedures by providing high levels of pure oxygen, is usually known as an oxygen generator.
How Oxygen is Purified through PSA Process?
The adsorption method used to generate pure oxygen is competitive and cost-effective compared to other cryogenic methods that produce fewer oxygen molecules. During this procedure, molecules from various components, such as nitrogen, carbon dioxide, and water, are successfully adsorbed by passing ambient air through a column of molecular sieves, enabling oxygen and other molecules to pass through. This assures the production of pure oxygen, which normally ranges between 94% and 95%. The optimum adsorption solution for the healthcare sector is Molecular sieve 13X, which ensures that patients inhale clean, unpolluted oxygen.
An air compressor is used to compress ambient air, which is then dried and filtered by an air dryer before entering the PSA processing vessels. Following this preparation, the primary adsorption for oxygen generation occurs. This method successfully removes impurities and undesired gases from the surrounding air, including nitrogen, carbon dioxide, and argon. The air is subsequently passed through a jar containing a sodium-based molecular sieve with a type X crystal structure. These desiccants gather unwanted gasses while still allowing oxygen to pass. This cycle continues until the molecular sieves are completely exhausted, yielding a high concentration of pure oxygen. PSA’s fundamental goal is to increase pure oxygen production for better respiratory support.
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