PSA Nitrogen Ltd., Delivering Success

Our Mission - PSA seeks to attain leadership in the sectors it operates in through a disciplined and focused approach, creating long term value for its customers and partners.

Corporate Overview

The group was founded in 1977 by our Chairman and Managing Director, Mr. P.N. Misra, who after graduating from IIT Kanpur, ventured into serving the needs of the untapped and undeveloped market for sophisticated PSA technology based gas generation plants in India.

Building up and executing tirelessly on that idea, we are now amongst the largest and best-of-breed air and gas treatment systems company in the PSA space around the world. Since our inception, we have cemented our position as India’s premier and most reputed air and gas solutions company having supplied more than 1500 PSA Plants in the capacity range of 10 Nm³/hr  to 750 Nm³/h , which have been operating in the chemical, petrochemical, pharmaceutical, metallurgical, food and cement industries to the complete satisfaction of the end users. 

  • We are an ISO-9001 Certified Engineering Company dealing in design, engineering, manufacturing, site-installation and commissioning of:
      PSA Technology based Nitrogen Gas Generation Plants
      PSA/VSA Technology based Oxygen Gas Generation Plants
      Ammonia Cracking based Hydrogen Gas Generation Units

  Compressed Air Drying Units
  Gas Purification Units


  • Our manufacturing facility is duly approved by:
  • Chief Controller of Explosives   
  • Chief Inspector of Boilers
  • ASME (American Society of Mechanical Engineers) ‘U’ Stamp for manufacturing of unfired pressure vessels.
  • ASME (American Society of Mechanical Engineers) ‘ S’ Stamp for manufacturing of Boilers.
  • We have a technical collaboration with Kuraray Chemical Co. Ltd - Japan and are exclusive distributors for their CMS (Carbon Molecular Sieves). 


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