US2636844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the conversion of reduced crudes in the presence of an added naphtha
Assignee: Standard Oil Development Co
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Filing: 1950-08-29
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Granted: 1953-04-28
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Expires: 1970-08-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles N Kimberlin
- 👤 Clark E Adams
- 👤 Robert W Krebs
- 👤 Roger W Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:19
CPC Classifications
C; C10; C10G; C10G9/00; C10G9/28; C10G9/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
IN A PROCESS FOR CRACKING HEAVY RESIDUAL OILS TO FORM GASOLINE AND LOWER BOILING HYDROCARBONS THE IMPROVEMENT WHICH COMPRISES INTRODUCING A STREAM OF SAID RESIDUAL OIL INTO A TURBULENT FLUIDIZED BED OF SUBDIVIDED SOLIDS IN A CONVERSION ZONE, MAINTAINING SAID CONVERSION ZONE AT A TEMPERATURE BETWEEN ABOUT 1050*F. AND 1150* F., CIRCULATING A STREAM OF SOLIDS FROM SAID CONVERSION ZONE THROUGH AN EXTRANEOUS HEATER AND BACK TO SAID CONVERSION ZONE TO MAINTAIN SAID TEMPERATURE, MAINTAINING SAID RESIDUAL OIL WITHIN SAID CONVERSION ZONE AND IN CONTACT WITH SAID HOT FLUIDIZED SOLIDS FOR A PERIOD SUFFICIENT TO CONVERT AT LEAST 40% BY VOLUME OF SAID RESIDUAL OIL INTO GASOLINE, AND PASSING A STREAM OF VIRGIN NAPHTHA BOILING WITHIN THE RANGE OF ABOUT 250 TO 430*F. INTO THE BOTTOM PORTION OF SAID FLUIDIZED BED IN AN AMOUNT SUFFICIENT TO MAINTAIN SAID BED IN A FLUIDIZED STATE.
Claim 2
Dependent Claim
143 words
IN A PROCESS FOR CRACKING HEAVY RESIDUAL OILS TO FORM GASOLINE AND LOWER BOILING HYDROCARBONS THE IMPROVEMENT WHICH COMPRISES INTRODUCING A STREAM OF SAID RESIDUAL OIL INTO A TURBULENT FLUIDIZED BED OF SUBDIVIDED SOLIDS IN A CONVERSION ZONE, MAINTAINING SAID CONVERSION ZONE AT A TEMPERATURE BETWEEN ABOUT 1050*F. AND 1150* F., CIRCULATING A STREAM OF SOLIDS FROM SAID CONVERSION ZONE THROUGH AN EXTRANEOUS HEATER AND BACK TO SAID CONVERSION ZONE TO MAINTAIN SAID TEMPERATURE, MAINTAINING SAID RESIDUAL OIL WITHIN SAID CONVERSION ZONE AND IN CONTACT WITH SAID HOT FLUIDIZED SOLIDS FOR A PERIOD SUFFICIENT TO CONVERT AT LEAST 40% BY VOLUME OF SAID RESIDUAL OIL INTO GASOLINE, AND PASSING A STREAM OF VIRGIN NAPHTHA BOILING WITHIN THE RANGE OF ABOUT 250 TO 430*F. INTO THE BOTTOM PORTION OF SAID FLUIDIZED BED IN AN AMOUNT SUFFICIENT TO MAINTAIN SAID BED IN A FLUIDIZED STATE.
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) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |