Method and apparatus for cryogenic fractionation of a gaseous fe

Details Method and apparatus for cryogenic fractionation of a gaseous fe Method and apparatus for cryogenic fractionation of a gaseous fe

1985-09-25

1987-09-01

Capossela, Ronald C.

Refrigeration

Processes

Circulating external gas

62 38, F23J 306

Patent

active

046907025

ABSTRACT:
The invention relates to a method and an apparatus for cryogenic fractionation of a gaseous feed comprising a contact purifying-refrigerating column into the bottom of which is injected a partially condensed gaseous feed, the said column producing in its head portion a residual gas and in its bottom portion a liquid which is injected into a fractionating column producing in its head portion a distillate which is at least partially condensed and injected into the head portion of the column to thus recover in the bottom liquid of this column the heavy compounds contained in the vaporized fraction of the gaseous feed.

REFERENCES:
patent: 2952984 (1960-09-01), Marshall, Jr.
patent: 3436925 (1969-04-01), Jakob
patent: 4251249 (1981-02-01), Gulsby
patent: 4273566 (1981-06-01), Schwarz
patent: 4322225 (1982-03-01), Bellinger et al.
patent: 4444576 (1984-04-01), Ryan et al.
patent: 4526595 (1985-07-01), McNeil
French Search Report FR 84 14996 (and translation).

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