US2863823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination transfer line and fluid bed coking system
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1953-11-10
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Granted: 1958-12-09
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Expires: 1973-11-10
Abstract
No abstract record available.
Inventors
- 👤 Jr John F Moser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:28
CPC Classifications
C; C10; C10B; C10B55/00; C10B55/02; C10B55/04; C10B55/08; C10B55/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A FLUIDIZED SOLID PROCESS OF COKING HEAVY HYDROCARBON OIL WHICH COMPRISES FEEDING AT LEAST A MAJOR PORTION OF THE OIL INTO A RELATIVELY DISPERSED FLOWING STREAM OF CATALYTICALLY INERT SOLID PARTICLES AT A TEMPERATURE ABOUT 1000*F., CONTACTING SAID OIL WITH SAID PARTICLES FOR A PERIOD OF TIME SUFFICIENT TO EVAPORATE SUBSTANTIAL FRACTIONS OF THE FEED BUT NOT SUFFICIENT TO SUBSTANTIALLY CRACK THE VAPORS, SEPARATING THE VAPORS FROM SAID SOLIDS, PASSING THE VAPORS INTO A FLUID BED OF CATALYTICALLY INERT SOLIDS AT A TEMPERATURE BELOW 1000*F., CONTACTING SAID VAPORS WITH SAID BED FOR A PERIOD OF TIME SUFFICIENT TO SUBSTANTIALLY CRACK SAID VAPORS, PASSING THE SOLIDS FROM BOTH SAID BED AND SAID STREAM TO A STRIPPING ZONE, STRIPPING OCCLUDED HYDROCARBON VAPORS FROM THE SOLIDS IN SAID ZONE AND PASSING SAID STRIPPED VAPORS THROUGH SAID BED, TRANSFERRING SAID SOLIDS TO A HEALING ZONE AND REHEATING SAID SOLIDS AND RETURNING THEM TO SAID STREAM AND SAID BED TO CONTINUE THE PROCESS.
Claim 2
Dependent Claim
158 words
A FLUIDIZED SOLID PROCESS OF COKING HEAVY HYDROCARBON OIL WHICH COMPRISES FEEDING AT LEAST A MAJOR PORTION OF THE OIL INTO A RELATIVELY DISPERSED FLOWING STREAM OF CATALYTICALLY INERT SOLID PARTICLES AT A TEMPERATURE ABOUT 1000*F., CONTACTING SAID OIL WITH SAID PARTICLES FOR A PERIOD OF TIME SUFFICIENT TO EVAPORATE SUBSTANTIAL FRACTIONS OF THE FEED BUT NOT SUFFICIENT TO SUBSTANTIALLY CRACK THE VAPORS, SEPARATING THE VAPORS FROM SAID SOLIDS, PASSING THE VAPORS INTO A FLUID BED OF CATALYTICALLY INERT SOLIDS AT A TEMPERATURE BELOW 1000*F., CONTACTING SAID VAPORS WITH SAID BED FOR A PERIOD OF TIME SUFFICIENT TO SUBSTANTIALLY CRACK SAID VAPORS, PASSING THE SOLIDS FROM BOTH SAID BED AND SAID STREAM TO A STRIPPING ZONE, STRIPPING OCCLUDED HYDROCARBON VAPORS FROM THE SOLIDS IN SAID ZONE AND PASSING SAID STRIPPED VAPORS THROUGH SAID BED, TRANSFERRING SAID SOLIDS TO A HEALING ZONE AND REHEATING SAID SOLIDS AND RETURNING THEM TO SAID STREAM AND SAID BED TO CONTINUE THE PROCESS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |