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Pumped Liquid Nitrogen (LIN) Expansion

IP.com Disclosure Number: IPCOM000019391D
Publication Date: 2003-Sep-12

Publishing Venue

The IP.com Prior Art Database


Liquid nitrogen is withdrawn from the High Pressure column, pumped to elevated pressure and vaporized, along with the boiling oxygen. The pressure of nitrogen vaporization is such that the condensed air pressure can optimally be the same as that used to boil the oxygen. The nitrogen vapor resulting from the vaporization is warmed, then turboexpanded to product delivery pressure and provides refrigeration.