US2692864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disperse phase countercurrent contacting of subdivided particles
Assignee: Universal Oil Products Co
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Filing: 1950-08-23
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Granted: 1954-10-26
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Expires: 1970-08-23
Abstract
No abstract record available.
Inventors
- 👤 Clarence G Gerhold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:44
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/1845; B01J8/1863
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A METHOD FOR REGENERATING SUBDIVIDED SOLID CATALYST PARTICLES WITH A GASEOUS OXYGEN-CONTAINING STREAM WITHIN A CONFINED AND CYLINDRICALLY SHAPED REGENERATION ZONE AND MAINTAINING A RELATIVELY LOW CONCENTRATION OF CATALYST PARTICLES WITHIN THE REGENERATING GASEOUS STREAM, WHICH COMPRISES, INTRODUCING SAID CATALYST PARTICLES TO THE CENTRAL PORTION OF SAID CYLINDRICAL REGENERATING ZONE, INTRODUCING SAID OXYGEN-CONTAINING REGENERATING STREAM TANGENTIALLY INTO AND ALONG THE PERIPHERY OF SAID CYLINDRICAL REGERATING ZONE AND PASSING THE SAME INWARDLY TOWARD THE CENTRAL PORTION OF SAID ZONE, EFFECTING THE CONTINUOUS CENTRIFUGAL CONTACTING OF SAID CATALYST PARTICLES WITH SAID REGENERATING GASEOUS STREAM WHILE DISCHARGING SAID CATALYST PARTICLES OUTWARDLY TOWARD THE PERIPHERY OF SAID REGENERATING ZONE, CONTINUOUSLY WITHDRAWING RESULTING COMBUSTION GASEOUS FROM THE CENTRAL PORTION OF SAID REGENERATING ZONE, AND CONTINUOUSLY WITHDRAWING THE RESULTING CONTACTED CATALYST PARTICLES FROM THE OUTER PERIPHERY THEREOF.
Claim 2
Independent Claim
131 words
A METHOD FOR REGENERATING SUBDIVIDED SOLID CATALYST PARTICLES WITH A GASEOUS OXYGEN-CONTAINING STREAM WITHIN A CONFINED AND CYLINDRICALLY SHAPED REGENERATION ZONE AND MAINTAINING A RELATIVELY LOW CONCENTRATION OF CATALYST PARTICLES WITHIN THE REGENERATING GASEOUS STREAM, WHICH COMPRISES, INTRODUCING SAID CATALYST PARTICLES TO THE CENTRAL PORTION OF SAID CYLINDRICAL REGENERATING ZONE, INTRODUCING SAID OXYGEN-CONTAINING REGENERATING STREAM TANGENTIALLY INTO AND ALONG THE PERIPHERY OF SAID CYLINDRICAL REGERATING ZONE AND PASSING THE SAME INWARDLY TOWARD THE CENTRAL PORTION OF SAID ZONE, EFFECTING THE CONTINUOUS CENTRIFUGAL CONTACTING OF SAID CATALYST PARTICLES WITH SAID REGENERATING GASEOUS STREAM WHILE DISCHARGING SAID CATALYST PARTICLES OUTWARDLY TOWARD THE PERIPHERY OF SAID REGENERATING ZONE, CONTINUOUSLY WITHDRAWING RESULTING COMBUSTION GASEOUS FROM THE CENTRAL PORTION OF SAID REGENERATING ZONE, AND CONTINUOUSLY WITHDRAWING THE RESULTING CONTACTED CATALYST PARTICLES FROM THE OUTER PERIPHERY THEREOF.
References Cited (Backward Citations)
US2311140A
Cited
US2306462A
Cited
US2444990A
Cited
US2396109A
Cited
US2388348A
Cited
US2431884A
Cited
US2546042A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-25 | 1958-04-26 | 1958-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-25 | 1962-04-26 | 1962-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-25 | 1966-04-26 | 1966-10-26 | $7700.00 | Window Closed / Lapsed |