Separation of air

Details Separation of air Separation of air

1979-06-01

1983-04-19

Spitzer, Robert H.

Gas separation

Means within gas stream for conducting concentrate to collector

55 62, 55 74, 55179, 55387, 62 18, B01D 5304, F25J 304

Patent

active

043804578

ABSTRACT:
An air separation process for obtaining high purity oxygen and nitrogen comprises the steps of cooling compressed air in a heat exchanger to remove its water content; removing carbon dioxide from the dried air in an adsorption unit; further cooling the dry CO.sub.2 -free air and passing the residue to a rectification column; regenerating the beds of the adsorption unit with waste nitrogen from the rectification column; and purging water from the heat exchanger with the effluent gas obtained from regeneration in the adsorption unit.

REFERENCES:
patent: 3358460 (1967-12-01), Smith et al.
patent: 3375674 (1968-04-01), Berker
patent: 3718005 (1973-02-01), McDermott
patent: 3722226 (1973-03-01), McDermott et al.
patent: 3780534 (1973-12-01), Lofredo et al.
patent: 3967464 (1976-07-01), Cormier et al.
patent: 4152130 (1979-05-01), Theobald

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