Separation of gas mixtures

Details Separation of gas mixtures Separation of gas mixtures

1991-09-30

1993-05-04

Capossela, Ronald C.

Refrigeration

Processes

Circulating external gas

62 36, 165166, 196139, 202198, F25J 300

Patent

active

052070654

ABSTRACT:
The present invention provises a method and apparatus for separating a gas mixture. In accordance therewith, the gas mixture is rectified in a dephlegmator. The dephlegmator has first and second sets of heat exchange passages which are in a heat exchange relationship with the gas mixture being rectified. A stream of a first heat exchange fluid is passed through a first of the set of heat exchange passages so as to condense some of the gas mixture. A stream of a second heat exchange fluid is sub-cooled by passage through a second set of the heat exchange passages.

REFERENCES:
patent: 3992168 (1976-11-01), Toyama et al.
patent: 4208198 (1980-06-01), Small
patent: 4671813 (1987-06-01), Yoshino
patent: 4721164 (1988-01-01), Woodward
patent: 4749393 (1988-06-01), Rowles

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