US2594615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adsorption process and apparatus therefor
Assignee: Union Oil Company of California
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Filing: 1946-09-10
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Granted: 1952-04-29
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Expires: 1966-09-10
Abstract
No abstract record available.
Inventors
- 👤 Clyde H O Berg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:31
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/06; B01D53/08; B01D2253/00; B01D2253/10; B01D2253/102; B01D2256/00; B01D2256/24; B01D2257/00; B01D2257/10; B01D2257/108; B01D2257/70; B01D2257/702; B01D2257/7022; B01D2259/00; B01D2259/40; B01D2259/40011; B01D2259/40077; B01D2259/40081; B01D2259/40083; B01D2259/40086; B01D2259/40088
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN A CONTINUOUS PROCESS FOR THE SEPARATION OF A GASEOUS MIXTURE BY SELECTIVE ADSORPTION AND DESORPTION WHICH COMPRISES THE STEPS OF PASSING A CONTINUOUSLY MOVING BED OF SOLID ADSORBENT SUCCESSIVELY THROUGH AN ADSORPTION ZONE AND A STRIPPING ZONE, ABSORBING A PORTION OF SAID GASEOUS MIXTURE ON SAID SOLID ADSORBENT IN SAID ADSORPTION ZONE, SEPARATING THE UNADSORBED COMPONENTS OF SAID MIXTURE FROM SAID ADSORBENT AND STRIPPING SAID ADSORBENT IN SAID STRIPPING ZONE TO RECOVER THEREFROM SAID ADSORBED COMPONENTS OF SAID MIXTURE THE IMPROVEMENT COMPRISING DEPRESSURING A GAS CONCURRENTLY WITH ADSORBENT THROUGH A SEALING ZONE BETWEEN SAID ADSORPTION ZONE AND SAID STRIPPING ZONE TO ESTABLISH A REDUCED PRESSURE IN SAID STRIPPING ZONE RELATIVE TO SAID ADSORPTION ZONE, AND CARRYING OUT SAID STRIPPING STEP AT A PRESSURE LESS THAN THAT MAINTAINED IN SAID ADSORPTION STEP.
Claim 2
Dependent Claim
156 words
IN AN APPARATUS FOR THE SEPARATION OF GASEOUS MIXTURES BY SELECTIVE ADSORPTION AND DESORPTION IN A MOVING BED OF GRANULAR SOLID ADSORBENT WHICH COMPRISES AN ADSORPTION COLUMN, PROVIDED WITH A COOLING SECTION, AN ADSORPTION SECTION, AT LEAST ONE RECTIFICATION SECTION AND A STRIPPING SECTION, THE IMPROVEMENT COMPRISING A SEALING SECTION LACATED BETWEEN SAID STRIPPING SECTION AND THE RECTIFICATION SECTION NEXT ADJACENT THERETO, SAID SEALING SECTION COMPRISING A SERIES OF TUBES THROUGH WHICH SAID ADSORBENT MUST FLOW BEFORE ENTERING SAID STRIPPING SECTION, MEANS FOR HEATING SAID ADSORBENT WHILE PASSING A STREAM OF STRIPPING GAS COUNTERCURRENTLY THERETHROUGH, MEANS FOR INTRODUCING INTO SAID ADSORPTION COLUMN AT A POINT DIRECTLY ABOVE SAID SEALING SECTION A QUANTITY OF GAS UNDER A GREATER PRESSURE THAN THAT EXISTING IN SAID STRIPPING SECTION, AND MEANS FOR WITHDRAWING ADSORBENT FROM THE LOWER PORTION OF SAID COLUMN AT ONE PRESSURE AND INTRODUCING THE WITHDRAWN ADSORBENT TO THE UPPER PORTION OF SAID COLUMN AT A HIGHER PRESSURE.
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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) | 1955-04-29 | 1955-10-29 | 1956-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-29 | 1959-10-29 | 1960-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-29 | 1963-10-29 | 1964-04-29 | $7700.00 | Window Closed / Lapsed |