Oxygen disaster: IIT-Bombay exhibits method out, converts nitrogen generator into oxygen generator


Today News Online Service

New Delhi, April 29

The Indian Institute of Technology (IIT) Bombay has come up with a creative and ingenious solution to addressing the shortage of medical oxygen for the treatment of COVID-19 patients in the country. 

The pilot project which has been tested successfully relies on a simple technological hack: conversion of PSA (Pressure Swing Adsorption) Nitrogen Unit to PSA Oxygen Unit!, according to the Education Ministry

Initial tests done at IIT Bombay have shown promising results.

Oxygen production could be achieved at 3.5 atm pressure, with a purity level of 93% – 96 %. This gaseous oxygen can be utilised for COVID-related needs across existing hospitals and upcoming COVID-19 specific facilities by providing a continuous supply of oxygen, it said.

“It has been done by fine-tuning the existing Nitrogen Plant setup and changing the molecular sieves from Carbon to Zeolite,” says Prof Milind Atrey, Dean (R&D), IIT Bombay, who led the project.

“Such nitrogen plants, which take air from the atmosphere as raw material, are available in various industrial plants across India. Therefore, each of them could potentially be converted into an oxygen generator, thus helping us tide over the current public health emergency,” he added.

The pilot project is a collaborative effort between IIT Bombay, Tata Consulting Engineers and Spantech Engineers, Mumbai, who deal with PSA Nitrogen & Oxygen plant production.

A PSA Nitrogen plant in the Refrigeration and Cryogenics Laboratory of IIT 



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