초록 ▼

A single bed pressure swing adsorption process with at least one transfer tank is utilized to separate less adsorbable components from more adsorbable components such as the separation of oxygen from air. Depressurization gas is collected in the transfer tank and is used later exclusively for purgin

A single bed pressure swing adsorption process with at least one transfer tank is utilized to separate less adsorbable components from more adsorbable components such as the separation of oxygen from air. Depressurization gas is collected in the transfer tank and is used later exclusively for purging the bed during the regeneration period.

대표청구항 ▼

1. A pressure swing adsorption process for the separation of a pressurized feed gas containing at least one more strongly adsorbable component and at least one less strongly adsorbable component which comprises:(a) introducing the pressurized feed gas into a feed end of an adsorber vessel containing

1. A pressure swing adsorption process for the separation of a pressurized feed gas containing at least one more strongly adsorbable component and at least one less strongly adsorbable component which comprises:(a) introducing the pressurized feed gas into a feed end of an adsorber vessel containing a solid adsorbent which preferentially adsorbs the more strongly adsorbable component, withdrawing from a product end of the adsorber vessel an adsorber effluent gas enriched in the less strongly adsorbable component, introducing adsorber effluent gas into a first gas storage tank, and withdrawing a final product gas from the first gas storage tank; (b) terminating introduction of the pressurized feed gas into the adsorber vessel and depressurizing the adsorber vessel by withdrawing gas therefrom and introducing the withdrawn gas into a second gas storage tank; (c) further depressurizing the adsorber vessel by withdrawing additional gas therefrom; (d) purging the adsorber vessel by introducing gas from the second gas storage tank into the adsorber vessel while continuing to withdraw gas therefrom; (e) terminating the introduction of gas from the second gas storage tank into the adsorber vessel and immediately thereafter repressurizing the adsorber vessel by introducing pressurized feed gas into the feed end thereof; and (f) repeating (a) through (e) in a cyclic manner.