Plant for producing gaseous oxygen

Details Plant for producing gaseous oxygen Plant for producing gaseous oxygen

1983-07-25

1985-07-16

Sever, Frank

Refrigeration

Processes

Circulating external gas

62 39, F25J 304

Patent

active

045294259

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 vapor from said high pressure column (8) and pass the expanded vapor through said heat exchanger (6) and further characterized in that said plant comprises means to control the flow of vapor through said expander (27).

REFERENCES:
patent: 3605422 (1971-09-01), Pryor et al.

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