Membrane nitrogen process and system

Details Membrane nitrogen process and system Membrane nitrogen process and system

1990-06-06

1992-06-16

Langel, Wayne A.

Chemistry of inorganic compounds

Nitrogen or compound thereof

422189, 422198, B01J 1000, C01B 2100

Patent

active

051223554

ABSTRACT:
Feed air is separated in a membrane system, with recovered nitrogen being purified in a deoxo unit and dried in an adsorbent dryer using high temperature purge gas. The heat generated in the deoxo unit can be used to satisfy the thermal energy requirements of dryer regeneration, without decrease in product recovery. Membrane permeate gas can be used for purge at high purge/feed ratio to reduce the energy requirements of bed regeneration.

REFERENCES:
patent: 2582885 (1952-01-01), Rosenblatt
patent: 3240554 (1966-03-01), Angerhofer
patent: 4960579 (1990-10-01), Campbell
European Patent Application 0,335,418 published Oct. 4, 1989.
"Inert Gas Generation Systems for Offshore Platforms", Earl R. Beaver and Tommy E. Graham, Permea Incorporated; Thorbjorn Johannessen and Henrik Kvivik, Maritime Protection A/S (a unit of Permea Inc.) and American Institute of Chemical Engineers, 1986 Spring Meeting, Apr. 1986, New Orleans, La.

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