Pressure-swing adsorption system and method for NBC collective p

Details Pressure-swing adsorption system and method for NBC collective p Pressure-swing adsorption system and method for NBC collective p

1985-05-21

1991-01-08

Nelson, Peter A.

Gas separation

Means within gas stream for conducting concentrate to collector

55 33, 55 58, 55 68, 55 75, 55389, B01D 5302, B01D 3900

Patent

active

049831909

ABSTRACT:
A pressure-swing adsorber using type 13X (10 Angstrom) molecular sieve is used in lieu of or ahead of an activated or impregnated carbon filter in an NBC collective protection system. The pressure-swing adsorber removes a much wider range of toxic vapors from air than an impregnated carbon bed, is fully regenerable, and has a long service life. In one system for supplying purified air to a shelter, air is compressed by a gas turbine-driven compressor, fed through an aerosol removal system, purified by an industrial-type pressure-swing adsorber using type 13X molecular sieve, filtered by a Super HEPA filter, and expanded to atmospheric pressure in a turbo-generator. In another system for field medical oxygen generation, a compressor is driven by an electrical motor and the purified air is fed to a pressure-swing oxygen concentrator using type 5A molecular sieve.

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