Fractionation column

Details Fractionation column Fractionation column

1997-08-21

1998-09-29

Capossela, Ronald C.

Refrigeration

Cryogenic treatment of gas or gas mixture

Separation of gas mixture

62924, F25J 100

Patent

active

058132520

ABSTRACT:
A fractionation column has a first vapor inlet to a bottom mass exchange region of the column communicating with a source of vapor mixture to be separated and a second vapor inlet to an intermediate mass exchange region of the column. A valve means is operable to place the second inlet selectively in communication with the source of vapor mixture to be separated. The fractionation column may form part of an air separation apparatus.

REFERENCES:
patent: 2971896 (1961-02-01), Curl
patent: 4261719 (1981-04-01), Gotoh et al.
patent: 5406800 (1995-04-01), Bonaquist
patent: 5431023 (1995-07-01), Howard et al.

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