US2518409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regeneration of granular adsorbents
Assignee: Lummus Technology LLC
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Filing: 1947-06-26
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Granted: 1950-08-08
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Expires: 1967-06-26
Abstract
No abstract record available.
Inventors
- 👤 Thomas C Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:48
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/30; B01J20/34; B01J20/3433; B01J20/02; B01J20/06; B01J20/08; B01J20/10; B01J20/103; B01J20/12; B01J20/345; B01J20/3475; B01J20/3483; B01J2220/00; B01J2220/50; B01J2220/56; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/929; Y10S411/935
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
THE METHOD OF REACTIVATING A BED OF ADSORBENT WHICH HAS ADSORBED A COMPONENT FROM A LIQUID CHARGE, WHICH COMPRISES HEATING THE ADSORBENT TO A REACTIVATION TEMPERATURE SUFFICIENT TO DRIVE OFF THE ABSORBED COMPONENT, APPLYING A STREAM OF COOLING LIQUID TO THE ADSORBENT, SAID COOLING LIQUID COMPRISING AN UNADSORBED COMPONENT OF SAID LIQUID CHARGE, CONTROLLING THE FLOW OF COOLING LIQUID TO COOL SAID ADSORBENT BY EVAPORATION WITHOUT DISRUPTING THE ADSORBENT BED, ALLOWING THE ADSORBENT BED TO REACH A TEMPERATURE BELOW THE FLASH POINT OF THE COOLING LIQUID ENTERING THE BED, AND THEREAFTER PASSING LARGER CONTROLLED AMOUNTS OF SAID COOLING LIQUID INTO CONTACT WITH TH ADSORBENT UNTIL SAID BED IS REDUCED TO ITS OPERATING TEMPERATURE.
Claim 2
Independent Claim
113 words
THE METHOD OF REACTIVATING A BED OF ADSORBENT WHICH HAS ADSORBED A COMPONENT FROM A LIQUID CHARGE, WHICH COMPRISES HEATING THE ADSORBENT TO A REACTIVATION TEMPERATURE SUFFICIENT TO DRIVE OFF THE ABSORBED COMPONENT, APPLYING A STREAM OF COOLING LIQUID TO THE ADSORBENT, SAID COOLING LIQUID COMPRISING AN UNADSORBED COMPONENT OF SAID LIQUID CHARGE, CONTROLLING THE FLOW OF COOLING LIQUID TO COOL SAID ADSORBENT BY EVAPORATION WITHOUT DISRUPTING THE ADSORBENT BED, ALLOWING THE ADSORBENT BED TO REACH A TEMPERATURE BELOW THE FLASH POINT OF THE COOLING LIQUID ENTERING THE BED, AND THEREAFTER PASSING LARGER CONTROLLED AMOUNTS OF SAID COOLING LIQUID INTO CONTACT WITH TH ADSORBENT UNTIL SAID BED IS REDUCED TO ITS OPERATING TEMPERATURE.
References Cited (Backward Citations)
US2037685A
Cited
US2323524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |