Patent EP0094497A1 successfully refreshed from Google Patents.
Patent US2730508A successfully refreshed from Google Patents.
US2730508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling of finely divided solids to prevent afterburning in a regeneration lane
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1951-11-29
•
Granted: 1956-01-10
•
Expires: 1971-11-29
Abstract
No abstract record available.
Inventors
- 👤 Nick P Peet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:10
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/005; B01J8/0055; B01J8/18; B01J8/1836
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
191 words
A METHOD FOR REGENERATING FINELY DIVIDED CATALYTIC SOLIDS CONTAINING CARBON AND CARBONACEOUS BODIES WHICH COMPRISES SUSPENDING SAID FINELY DIVIDED SOLIDS IN A FREE OXYGEN-CONTAINING GASEOUS STREAM, BURNING CARBON AND CARBONACEOUS BODIES FROM SAID FINELY DIVIDED SOLIDS IN A REGENERATION ZONE AT A TEMPERATURE IN THE RANGE FROM 800* TO 1200* F. TO FORM A SUSPENSION OF SAID SOLIDS IN A COMBUSTIBLE REGENERATION GAS, REDUCING THE SOLIDS CONTENT OF SAID SUSPENSION IN A FIRST SEPARATION STAGE IN SAID REGENERATION ZONE, FLOWING SAID SUSPENSION OF REDUCED SOLIDS CONTENT INTO A SECOND SEPARATION STAGE IN SAID REGENERATION ZONE TO REDUCE FURTHER THE SOLIDS CONTENT OF THE SUSPENSION, INTRODUCING AN INERT COOLING FLUID INOT SAID SUSPENSION OF REDUCED SOLIDS CONTENT FLOWING BETWEEN SAID STAGES TO LOWER THE TEMPERATURE OF THE SUSPENSION OF REDUCED SOLIDS CONTENT FLOWING INTO THE SECOND STAGE BY 50* TO 150* F. TO PREVENT AFTERBURNING IN SAID SUSPENSION OF REDUCED SOLIDS CONTENT DOWNSTREAM FROM SAID FIRST STAGE WHILE MAINTAINING THE TEMPERATURE OF THE CATALYTIC SOLIDS IN SAID REGENERATION ZONE IN THE RANGE BETWEEN 800* AND 1200* F., AND THEN DISCHARGING A SUBSTANTIALLY SOLIDS-FREE GAS FROM SAID SECOND STAGE AND SAID REGENERATION ZONE.
Claim 2
Independent Claim
191 words
A METHOD FOR REGENERATING FINELY DIVIDED CATALYTIC SOLIDS CONTAINING CARBON AND CARBONACEOUS BODIES WHICH COMPRISES SUSPENDING SAID FINELY DIVIDED SOLIDS IN A FREE OXYGEN-CONTAINING GASEOUS STREAM, BURNING CARBON AND CARBONACEOUS BODIES FROM SAID FINELY DIVIDED SOLIDS IN A REGENERATION ZONE AT A TEMPERATURE IN THE RANGE FROM 800* TO 1200* F. TO FORM A SUSPENSION OF SAID SOLIDS IN A COMBUSTIBLE REGENERATION GAS, REDUCING THE SOLIDS CONTENT OF SAID SUSPENSION IN A FIRST SEPARATION STAGE IN SAID REGENERATION ZONE, FLOWING SAID SUSPENSION OF REDUCED SOLIDS CONTENT INTO A SECOND SEPARATION STAGE IN SAID REGENERATION ZONE TO REDUCE FURTHER THE SOLIDS CONTENT OF THE SUSPENSION, INTRODUCING AN INERT COOLING FLUID INOT SAID SUSPENSION OF REDUCED SOLIDS CONTENT FLOWING BETWEEN SAID STAGES TO LOWER THE TEMPERATURE OF THE SUSPENSION OF REDUCED SOLIDS CONTENT FLOWING INTO THE SECOND STAGE BY 50* TO 150* F. TO PREVENT AFTERBURNING IN SAID SUSPENSION OF REDUCED SOLIDS CONTENT DOWNSTREAM FROM SAID FIRST STAGE WHILE MAINTAINING THE TEMPERATURE OF THE CATALYTIC SOLIDS IN SAID REGENERATION ZONE IN THE RANGE BETWEEN 800* AND 1200* F., AND THEN DISCHARGING A SUBSTANTIALLY SOLIDS-FREE GAS FROM SAID SECOND STAGE AND SAID REGENERATION ZONE.
References Cited (Backward Citations)
US2495786A
Cited
US2374660A
Cited
US2488029A
Cited
US2419245A
Cited
US2393839A
Cited
US2454466A
Cited
US2534778A
Cited
US2545162A
Cited
US2580827A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |