Process for the generation of gaseous and/or liquid nitrogen

Details Process for the generation of gaseous and/or liquid nitrogen Process for the generation of gaseous and/or liquid nitrogen

1984-12-21

1986-06-17

Sever, Frank

Refrigeration

Processes

Circulating external gas

62 26, 62 28, 62 30, 62 31, 62 33, 62 38, F25J 304

Patent

active

045954054

ABSTRACT:
The present invention involves an efficient process for separating components of a gas stream by integrating a cryogenic separation unit and a membrane separation unit. One embodiment provides for the generation of one or more nitrogen-rich streams in the gas or liquid phase, or both, from a stream comprising oxygen and nitrogen; e.g., air.

REFERENCES:
patent: 3905201 (1975-09-01), Coveney et al.
patent: 4152130 (1979-05-01), Theobald
patent: 4222756 (1980-09-01), Thorogood
patent: 4230463 (1980-10-01), Henis
patent: 4372764 (1983-02-01), Theobald
I. Chem. E. Symposium Series No. 79, 1983, M. Ruhemann and D. I. Limb, pp. 320-328.

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