![]() ![]() If the temperature is high enough, many substances will burn in oxygen. In addition to the above sources of medical oxygen, there are also portable oxygen generators known as Oxygen Concentrators that can be used at home. Producing oxygen near hospitals has the additional advantage of eliminating need for transportation. Hospitals can also opt for on-site generation of oxygen by this method, where oxygen is produced from ambient air by concentrating it. If a gas mixture such as air is passed under pressure through a vessel containing an adsorbent bed of ‘zeolite’ that attracts nitrogen more strongly than oxygen, a part or all of the nitrogen will stay in the bed, and the gas exiting the vessel will be richer in oxygen, relative to the mixture entering the vessel. The higher the pressure, the more the adsorption of gas. This method leverages the property that under high pressure, gases tend to be attracted to solid surfaces. Oxygen can also be produced non-cryogenically, in gaseous form, using selective adsorption. What is Pressure Swing Adsorption Technique? These containers are highly insulated, in which liquid gases are stored at very low temperatures. We then get the output as final purified liquid oxygen, which is then transported using cryogenic containers.Ĭryogenics is the production and behaviour of materials at very low temperatures.Ī cryogenic liquid is defined as a liquid with a normal boiling point below –90☌.Ĭryogenic liquid containers are specially designed for safe and economic transportation and storage of liquefied gases at cryogenic temperatures, lower than –90☌. The resultant mixture of Oxygen and Argon is drained, decompressed and passed through a second low-pressure distillation vessel for further purification. But Argon has a boiling point similar to that of oxygen (–186☌) and hence a significant amount of Argon liquifies along with Oxygen. Since, the boiling point of Nitrogen is -196☌, it remains in a gaseous state. In this method, gases from the air are separated into various components after cooling them into a liquid state and then liquid oxygen is extracted from it.Ītmospheric air is first cooled to -181☌. They use a method called Fractional Distillation Method to produce pure oxygen from atmospheric air, which consists mostly of nitrogen and oxygen - 78% nitrogen, 21% oxygen and remaining 1% other gases including argon, carbon dioxide, neon, helium, and hydrogen. ASUs are basically plants that separate large volumes of gases. The most common production method is separation of oxygen in what are known as Air Separation Units or ASUs. Liquification enables storage in larger volume and easier transportation. LMO is nothing but high purity oxygen used for medical treatment, and is developed for use in the human body.ĭue to its low melting and boiling points, oxygen is in a gaseous state at room temperature. One of the ways in which this oxygen can be supplied is through Liquid Medical Oxygen (LMO). They hence need oxygen therapy, to be supplied through medical oxygen. It also hampers the supply of oxygen to various parts of the body. Shortness of breath or difficulty of breathing is one of the most common symptoms in patients with severe COVID-19. Oxygen is crucial for the treatment of patients with severe COVID-19, since the disease affects lung functioning. When we breathe air in, oxygen molecules enter the lungs and pass through lung walls into our blood. In fact, every cell in our body requires oxygen. Yes, oxygen is vital for respiration, the process that transfers energy from glucose to cells. ![]()
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