Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1979-09-17
1981-03-31
Adee, John
Gas separation
Means within gas stream for conducting concentrate to collector
55 58, B01D 5304
Patent
active
042590914
ABSTRACT:
An adiabatic adsorption method for pressure-swing adsorbers, e.g. for gas purification or separation of components of a gas mixture, in which several switchable adsorbers are used in an adsorption phase followed by at least two pressure-relief stages and at least one pressure buildup stage with an intervening purging in the adsorption-desorption/regeneration cycle. According to the invention, at least one of the adsorbers is operated as an auxiliary adsorber by comparison with a main adsorber with a reduced contact time between the adsorption medium and gases in the auxiliary adsorber. This reduced contact time can result from a reduced adsorption-phase period by comparison with that of the main adsorber (reduced residence time) and/or by using a reduced charge of the adsorption medium in the auxiliary adsorber by comparison with that of the main adsorber.
REFERENCES:
patent: 2340398 (1944-02-01), MacMullen
patent: 3176444 (1965-04-01), Kiyonaga
patent: 3338030 (1967-08-01), Feldbauer
patent: 3923477 (1975-12-01), Armond
patent: 3986849 (1976-10-01), Fuderer
Adee John
Linde Aktiengesellschaft
Ross Karl F.
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