Indian Journal of Pure and Applied Physics

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Oxygen is the most important source for the survival of all living organisms. Our daily activities require energy and it comes from the food we consume when the oxygen present in ourblood burns that food. The deficiency of oxygen disturbs the entire functioning of organs in the body. Around 50-80% of the natural oxygen production on Earth comes from the ocean. The oxygen production from ocean is the result of driftingplants, algae, and some bacteria that can photosynthesize. Oxygen has many applications like chemical processing, medical application, and many more. Differenttypes of methods are available to produce oxygen at a considerable scale, e.g., cryogenic, pressure swing, electrochemical. In this article, we discuss the stepwise process of variousmethods to produce oxygen and the challenges associated with details.
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