초록 ▼

A single-bed PSA system comprising a blower, an adsorber vessel, and a gas product storage tank separates a gas mixture using a three-step cycle comprising adsorption, evacuation, and pressurization. Pressurization is accomplished by introducing gas from the gas product storage tank into both the fe

A single-bed PSA system comprising a blower, an adsorber vessel, and a gas product storage tank separates a gas mixture using a three-step cycle comprising adsorption, evacuation, and pressurization. Pressurization is accomplished by introducing gas from the gas product storage tank into both the feed end and the product end of the adsorber vessel. Preferably a portion of the pressurization gas is introduced into the adsorber vessel by the blower, which also is used for providing feed to the adsorber and for withdrawing gas from the adsorber during the evacuation step.

대표청구항 ▼

[ I claim:] [1.] A pressure swing adsorption process for the separation of a pressurized feed gas mixture containing at least one more strongly adsorbable component and at least one less strongly adsorbable component comprising the steps of:(a) introducing the pressurized feed gas mixture into a fee

[ I claim:] [1.] A pressure swing adsorption process for the separation of a pressurized feed gas mixture containing at least one more strongly adsorbable component and at least one less strongly adsorbable component comprising the steps of:(a) introducing the pressurized feed gas mixture into a feed end of a single 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 enriched in the less strongly adsorbable component, passing the adsorber effluent into a gas storage vessel, and withdrawing from the gas storage vessel a product stream enriched in the less strongly adsorbable component;(b) terminating step (a) and depressurizing the adsorber vessel by withdrawing therefrom a depressurization gas enriched in the more strongly adsorbable component;(c) pressurizing the adsorber vessel by introducing gas from the gas storage vessel into the feed end and the product end of the adsorber vessel; and(d) repeating steps (a) through (c) in a cyclic manner.