Gas separation

Details Gas separation Gas separation

1977-12-20

1979-09-18

Spitzer, Robert H.

Gas separation

Means within gas stream for conducting concentrate to collector

55 25, 55 58, 55 75, 55163, 55179, 55389, B01D 5302

Patent

active

041681495

ABSTRACT:
A process and apparatus for separating gaseous mixtures by a pressure swing adsorption technique. One or more adsorbent beds are employed which operate on a cycle comprising the successive steps of adsorption, vacuum regeneration, and backfilling. The pressure in the bed(s) during backfilling is sensed, backfilling is ceased when such pressure reaches a predetermined level, and the regeneration step is controlled to occupy a constant period of time. The described process is able to maintain a substantially constant output flow and product purity despite the changes in adsorption capacity of the bed(s) which occur under fluctuating ambient temperatures.

REFERENCES:
patent: 3182435 (1965-05-01), Axt
patent: 3205639 (1965-09-01), Johnson et al.
patent: 3867111 (1975-02-01), Knowles
patent: 3891411 (1975-06-01), Meyer
patent: 3923477 (1975-12-01), Armond et al.
patent: 4013429 (1977-03-01), Sircar et al.
patent: 4065272 (1977-12-01), Armond

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