Air separation method and apparatus

Details Air separation method and apparatus Air separation method and apparatus

1997-01-22

1998-01-27

Capossel, Ronald C.

Refrigeration

Cryogenic treatment of gas or gas mixture

Separation of gas mixture

62908, F25J 300

Patent

active

057111669

ABSTRACT:
A method and apparatus of separating air in which the air is rectified wig a single column nitrogen generator which produces a nitrogen stream which is expanded into a refrigerant stream and then taken as a medium pressure product. Oxygen enriched air can be taken as low pressure and medium pressure enriched air products. A stream of oxygen enriched air can be used to regenerate the pre-purification unit and also taken as a wet product.

REFERENCES:
patent: 4072023 (1978-02-01), Springmann
patent: 4367082 (1983-01-01), Tomisaka et al.
patent: 4834785 (1989-05-01), Ayres

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