Air separation process and apparatus for high argon recovery and

Details Air separation process and apparatus for high argon recovery and Air separation process and apparatus for high argon recovery and

1988-06-02

1989-04-18

Warner, Steven E.

Refrigeration

Processes

Circulating external gas

62 24, 62 33, 62 41, F25J 304

Patent

active

048223956

ABSTRACT:
Process and apparatus to produce argon at high recovery with nitrogen at higher than conventional pressure comprising three columns wherein first column bottoms are passed into the second column, second column bottoms drive a third column top condenser, and argon-containing fluid is passed for separation into the third column from the second column at a point intermediate the points where first column bottoms enter and second column bottoms exit the second column.

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Latimer, R. E., Distillation of Air, Chemical Engineering Progress, Feb. 1967, pp. 35-59.

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