Patent US4529415A successfully refreshed from Google Patents.
US4529415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gaseous separation apparatus and process
Assignee: Individual
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Filing: 1984-06-07
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Granted: 1985-07-16
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Expires: 2004-06-07
Abstract
Abstract A method and apparatus for the semi-continuous batch separation of a feed mixture of gaseous products into individual substantially pure products utilizes preferential adsorption in which all the components of a gaseous feed mixture are adsorbed by one or more adsorbers through which the feed mixture of gaseous products are sequentially cycled through the steps of (1) progressive adsorption of adsorbates from the mixture of gaseous products; (2) rectification of the adsorbates and (3) desorption of adsorbates contained in the adsorber with the adsorber being readied for further adsorption. Substantially pure gases are collected at appropriate intervals throughout the sequential cycling.
Inventors
- 👤 Leslie Szirmay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:26
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D2253/00; B01D2253/10; B01D2253/102; B01D2259/00; B01D2259/40; B01D2259/404
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
184 words
A process of separating several comingled gases of at least quasilinear properties from one another, which comprises passing said comingled gases at atmospheric pressure and room temperature as a feed stock through a preferential adsorbent in a static bed characterized by its ability to adsorb all of said comingled gases until all of said comingled gases are adsorbed and until the least adsorbable gas of said comingled gases emerges from said adsorbent, displacing said least adsorbable gas from said adsorbent by recycling said feed stock and collecting said least adsorbable gas; cycling the most adsorbable of said remaining comingled gases through said adsorbent until said most adsorbable gas emerges from said adsorbent, displacing said next higher adsorbable gas, collecting said next higher adsorbable displaced gas, cycling said next most adsorbable gas through said adsorbent until a still higher adsorbable gas of said comingled gases emerges from said adsorber; collecting said displaced gas and continuing said cycling of said most adsorbable gas until all of said comingled gases are separated from one another and collected and finally purging said most adsorbable gas from the adsorbent.
Claim 2
Dependent Claim
184 words
A process of separating several comingled gases of at least quasilinear properties from one another, which comprises passing said comingled gases at atmospheric pressure and room temperature as a feed stock through a preferential adsorbent in a static bed characterized by its ability to adsorb all of said comingled gases until all of said comingled gases are adsorbed and until the least adsorbable gas of said comingled gases emerges from said adsorbent, displacing said least adsorbable gas from said adsorbent by recycling said feed stock and collecting said least adsorbable gas; cycling the most adsorbable of said remaining comingled gases through said adsorbent until said most adsorbable gas emerges from said adsorbent, displacing said next higher adsorbable gas, collecting said next higher adsorbable displaced gas, cycling said next most adsorbable gas through said adsorbent until a still higher adsorbable gas of said comingled gases emerges from said adsorber; collecting said displaced gas and continuing said cycling of said most adsorbable gas until all of said comingled gases are separated from one another and collected and finally purging said most adsorbable gas from the adsorbent.
Claim 3
Dependent Claim
50 words
The process of separating several comingled gases of at least quasilinear properties set forth in claim 1 and wherein the most adsorbable gas is passed through said adsorbent until said most adsorbable gas purges said adsorbent; displacing said most adsorbable gas from said adsorbent and collecting said most adsorbable gas.
Claim 4
Dependent Claim
35 words
The process of claim 1 including the step of during the flow of the most adsorbable gas segregating in order from less adsorbable to more adsorbable as much as n-1 gases sequentially effluenting the adsorber.
Claim 5
Dependent Claim
184 words
A process of separating several comingled gases of at least quasilinear properties from one another in an adsorber containing a quasilinear preferential adsorbent, the gases ranging from a least adsorbable to a most adsorbable upon said adsorbent, comprising contacting the mixture of gases with the preferential adsorbent by flowing the mixture through the adsorber at atmospheric pressure and room temperature; collecting the least adsorbable gas flowing from the adsorber until all of said gases are adsorbed and until a desirable more adsorbable gas appears in effluent from the adsorber; discontinuing flow of the mixture of gases into the adsorber; flowing a most adsorbable of said comingled gases into the adsorber, collecting gas effluenting the adsorber until the next most adsorbable gas commences effluenting the adsorger; discontinuing flow of the most adsorbable gas into the adsorber; desorbing the adsorber while collecting the most adsorbable gas effluenting the adsorber during desorption; and readying the adsorber for further adsorption of the mixture of gases, repeating said process until all of said comingled gases are separated and collected and finally purging the most adsorbable gas from the adsorbent.
Claim 6
Dependent Claim
184 words
A process of separating several comingled gases of at least quasilinear properties from one another in an adsorber containing a quasilinear preferential adsorbent, the gases ranging from a least adsorbable to a most adsorbable upon said adsorbent, comprising contacting the mixture of gases with the preferential adsorbent by flowing the mixture through the adsorber at atmospheric pressure and room temperature; collecting the least adsorbable gas flowing from the adsorber until all of said gases are adsorbed and until a desirable more adsorbable gas appears in effluent from the adsorber; discontinuing flow of the mixture of gases into the adsorber; flowing a most adsorbable of said comingled gases into the adsorber, collecting gas effluenting the adsorber until the next most adsorbable gas commences effluenting the adsorger; discontinuing flow of the most adsorbable gas into the adsorber; desorbing the adsorber while collecting the most adsorbable gas effluenting the adsorber during desorption; and readying the adsorber for further adsorption of the mixture of gases, repeating said process until all of said comingled gases are separated and collected and finally purging the most adsorbable gas from the adsorbent.
Claim 7
Dependent Claim
14 words
The process of any of claims 1 or 3 the adsorbent being activated carbon.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-07-15 | 1989-01-14 | 1989-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-15 | 1993-01-14 | 1993-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-15 | 1997-01-14 | 1997-07-16 | $7700.00 | Window Closed / Lapsed |