Considering requirement of medical oxygen amidst COVID-19 pandemic, GoI explored feasibility of conversion of existing nitrogen plants to produce oxygen. Various such potential industries,wherein existing nitrogen plants may be spared for production of oxygen were identified: PMO
The process of converting the existing Pressure Swing Absorption (PSA) nitrogen plants for production of oxygen was discussed. In nitrogen plants Carbon Molecular Sieve (CMS) is used whereas Zeolite Molecular Sieve (ZMS) is required for producing oxygen:Prime Minister's Office
Therefore, by replacing CMS with ZMS and carrying out few other changes such as oxygen analyzer, control panel system, flow valves etc. existing nitrogen plants can be modified to produce oxygen: Prime Minister's Office
On deliberation with the industries, so far 14 industries have been identified where conversion of plants is under progress. Further 37 Nitrogen plants have been also identified with the help of industry associations: Prime Minister's Office
A nitrogen plant modified for the production of oxygen can be either shifted to a nearby hospital or, in case it is not feasible to shift the plant, it can be used for on-site production of oxygen, which can be transported to hospital through specialized vessels/cylinders: PMO
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