US2734852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
moser
Assignee: —
•
Filing: —
•
Granted: 1956-02-14
•
Expires: 1973-02-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:43
CPC Classifications
C; C10; C10G; C10G9/00; C10G9/28; C10G9/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
AN IMPRVED METHD OF COKING HYDROCARBON OILS INCLUDING HEAVY RESIDUAL PETROLEUM OILS WHICH CONTAIN CONSTITUENTS UNVAPORIZABLE AT ORDINARY PRESSURES WITHOUT CRACKING, COMPRISING CONTACTING A HYDROCARBON OIL WITH A FLUIDIZED BED OF FINELY DIVIDED COKE IN A COKING ZONE MAINTAINED AT A COKING TEMPERATURE ABOVE ABOUT 850* F. TO PRODUCE LOWER BOILING HYDROCARBONS WHILE DEPOSITING COKE ON THE FLUIDIZED PARTICLES, REMOVING COKE FROM SAID COKING ZONE AND PASSING IT TO AN ELUTRIATION-COMBUSTION ZONE, SEGMENTED TO CONTAINING AN ELUTRIATION PORTION AND A COMBUSTION PORTION CONTAINING FLUIDIZED SOLIDS, ELUTRIATION COKE FINES FROM SAID FLUIDIZED SOLIDS IN SAID ELUTRATION ZONE, FLUIDIZING AND COMBUSTING AND REMAINING RELATIVELY COARSE COKE WITH A FREE OXYGEN-CONTAINING GAS IN SAID ELUTRIATION PORTION, WITHDRAWING RELATIVELY COARSE NET COKE PRODUCT OF IMPROVED PROPERTIES FROM THE LOWER END OF SAID ELUTRIATION PORTION, OVERFLOWING EXCESS COKE PARTICLES FROM SAID ELUTRIATION INTO SAID COMBUSTION PORTION COMBUSTING FURTHER AMOUNTS OF THE COKE IN SAID COMBUSTION ZONE TO RAISE THE TEMPERATURE OF THE SOLIDS THEREIN
Claim 2
Dependent Claim
159 words
AN IMPRVED METHD OF COKING HYDROCARBON OILS INCLUDING HEAVY RESIDUAL PETROLEUM OILS WHICH CONTAIN CONSTITUENTS UNVAPORIZABLE AT ORDINARY PRESSURES WITHOUT CRACKING, COMPRISING CONTACTING A HYDROCARBON OIL WITH A FLUIDIZED BED OF FINELY DIVIDED COKE IN A COKING ZONE MAINTAINED AT A COKING TEMPERATURE ABOVE ABOUT 850* F. TO PRODUCE LOWER BOILING HYDROCARBONS WHILE DEPOSITING COKE ON THE FLUIDIZED PARTICLES, REMOVING COKE FROM SAID COKING ZONE AND PASSING IT TO AN ELUTRIATION-COMBUSTION ZONE, SEGMENTED TO CONTAINING AN ELUTRIATION PORTION AND A COMBUSTION PORTION CONTAINING FLUIDIZED SOLIDS, ELUTRIATION COKE FINES FROM SAID FLUIDIZED SOLIDS IN SAID ELUTRATION ZONE, FLUIDIZING AND COMBUSTING AND REMAINING RELATIVELY COARSE COKE WITH A FREE OXYGEN-CONTAINING GAS IN SAID ELUTRIATION PORTION, WITHDRAWING RELATIVELY COARSE NET COKE PRODUCT OF IMPROVED PROPERTIES FROM THE LOWER END OF SAID ELUTRIATION PORTION, OVERFLOWING EXCESS COKE PARTICLES FROM SAID ELUTRIATION INTO SAID COMBUSTION PORTION COMBUSTING FURTHER AMOUNTS OF THE COKE IN SAID COMBUSTION ZONE TO RAISE THE TEMPERATURE OF THE SOLIDS THEREIN
References Cited (Backward Citations)
US2711387A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-13 | 1959-08-15 | 1960-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-13 | 1963-08-15 | 1964-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-13 | 1967-08-15 | 1968-02-14 | $7700.00 | Window Closed / Lapsed |