Air separation process with single distillation column for combi

Details Air separation process with single distillation column for combi Air separation process with single distillation column for combi

1981-12-07

1983-05-10

Sever, Frank

Refrigeration

Processes

Circulating external gas

60648, 62 34, 62 39, F25J 1302

Patent

active

043823661

ABSTRACT:
The present invention is directed to an air separation system for the recovery of pressurized, substantially pure oxygen gas. The system uses a single pressure distillation column and burns a nitrogen-oxygen waste stream to provide power for the air compressor, the oxygen product compressor and electric generation. The distillation column has a split feed to develop reflux and reboil and to provide initial separation of the liquid and vapor components of the column.

REFERENCES:
patent: 2520862 (1950-08-01), Swearingen
patent: 3214926 (1965-11-01), Shaievitz et al.
patent: 3217502 (1965-11-01), Keith, Jr.
patent: 3394555 (1968-07-01), LaFleur
patent: 3731495 (1973-05-01), Coveney
patent: 3950957 (1976-04-01), Zakon
patent: 4152130 (1979-07-01), Theobald
patent: 4254629 (1981-03-01), Olszewski

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