US2890993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination fluid solids reactor and thermal cracking unit
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1956-04-25
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Granted: 1959-06-16
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Expires: 1976-04-25
Abstract
No abstract record available.
Inventors
- 👤 Carl E Kleiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:02
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/18; C10G9/00; C10G9/14; C10G9/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
THE PROCESS OF CONVERTING HEAVY HYDROCARBON OILS, WHICH HAVE A TENDENCY TO FORM OBJECTIONABLE CARBONACEOUS DEPOSITS, INTO LIGHTER PRODUCTS, WHICH COMPRISES FEEDING SAID OIL INTO CONTACT WITH A FLUIDIZED BED OF HOT, FINELY DIVIDED SOLID PARTICLES TO CONVERT SAID OIL AT LEAST IN PART TO GAS OIL VAPORS, TAKING THE GAS OIL VAPORS SO PRODUCED THROUGH A DISPERSE PHASE ABOVE SAID BED AND THROUGH AN OUTLET TO A RECOVERY ZONE WHEREIN GAS OIL IS RECOVERED, PASSING AT LEAST A PART OF SAID GAS OIL FROM SAID RECOVERY ZONE THROUGH AN EXTERNAL THERMAL CRACKING ZONE TO CONVERT IT TO OTHER PRODUCTS, AND PASSING AT LEAST A SUBSTANTIAL PART OF SAID OTHER PRODUCTS BACK INTO SAID DISPERSE PHASE TO ADD HEAT THERETO AND TO SUBSTANTIALLY PREVENT SAID FORMATION OF OBJECTIONABLE DEPOSITS.
Claim 2
Dependent Claim
129 words
THE PROCESS OF CONVERTING HEAVY HYDROCARBON OILS, WHICH HAVE A TENDENCY TO FORM OBJECTIONABLE CARBONACEOUS DEPOSITS, INTO LIGHTER PRODUCTS, WHICH COMPRISES FEEDING SAID OIL INTO CONTACT WITH A FLUIDIZED BED OF HOT, FINELY DIVIDED SOLID PARTICLES TO CONVERT SAID OIL AT LEAST IN PART TO GAS OIL VAPORS, TAKING THE GAS OIL VAPORS SO PRODUCED THROUGH A DISPERSE PHASE ABOVE SAID BED AND THROUGH AN OUTLET TO A RECOVERY ZONE WHEREIN GAS OIL IS RECOVERED, PASSING AT LEAST A PART OF SAID GAS OIL FROM SAID RECOVERY ZONE THROUGH AN EXTERNAL THERMAL CRACKING ZONE TO CONVERT IT TO OTHER PRODUCTS, AND PASSING AT LEAST A SUBSTANTIAL PART OF SAID OTHER PRODUCTS BACK INTO SAID DISPERSE PHASE TO ADD HEAT THERETO AND TO SUBSTANTIALLY PREVENT SAID FORMATION OF OBJECTIONABLE DEPOSITS.
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) | 1962-06-15 | 1962-12-15 | 1963-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-15 | 1966-12-15 | 1967-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-15 | 1970-12-15 | 1971-06-16 | $7700.00 | Window Closed / Lapsed |