Plant for producing gaseous oxygen

Details Plant for producing gaseous oxygen Plant for producing gaseous oxygen

F - Mech Eng,Light,Heat,Weapons

25

J

162/120

F25J 3/04 (2006.01)

Patent

CA 1212310

ABSTRACT A plant for producing gaseous oxygen which plant comprises a heat exchanger (6) for cooling feed air, a double distillation column (7) having a high pressure column (8) for receiving at least part of said feed air, and a low pressure column (15), a liquid oxygen storage vessel (19) communicating with said low pressure column (15) and a liquid storage vessel (37) communicating with said high pressure column (8), characterized in that said plant further comprises an expander (27) arranged to expand vapour from said high pressure column (8) and pass the expanded vapour through said heat exchanger (6) and further characterized in that said plant comprises means to control the flow of vapour through said expander (27).

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