Pumped Liquid Nitrogen (LIN) Expansion
Publication Date: 2003-Sep-12
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Liquid nitrogen is withdrawn from the High Pressure column, pumped to elevated pressure and vaporized, along with the boiling oxygen.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.