Process and plant for producing carbon monoxide

Details Process and plant for producing carbon monoxide Process and plant for producing carbon monoxide

1995-03-28

1997-03-11

Capossela, Ronald C.

Refrigeration

Cryogenic treatment of gas or gas mixture

Separation of gas mixture

62920, 62931, F25J 300

Patent

active

056090404

ABSTRACT:
Carbon monoxide is recovered by a cryogenic route from a gas mixture, for example from the tail gas of an operation for scrubbing with nitrogen in the preparation of an ammonia synthesis mixture, this mixture containing carbon monoxide, hydrogen and other constituents including nitrogen. The hydrogen is separated off by partial condensation and the other components by distillation of the condensate. The carbon monoxide is produced by distillation in two columns, of which only one has a head condenser fed with a flow of liquid carbon monoxide. A liquid flow is drawn at an intermediate level in the column with the head condenser and directed to the head of the other column.

REFERENCES:
patent: 4217759 (1980-08-01), Shenoy
patent: 4311496 (1982-01-01), Fabian
patent: 4888035 (1989-12-01), Bauer
patent: 5133793 (1992-07-01), Billy
patent: 5295356 (1994-03-01), Billy

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