US2871185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of metals from reduced crudes by mild coking in the presence of a silico ortho ester
Assignee: Standard Oil Co
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Filing: 1956-08-10
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Granted: 1959-01-27
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Expires: 1976-08-10
Abstract
No abstract record available.
Inventors
- 👤 Louis C Gutberlet
- 👤 Herder Marvin J Den
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:38
CPC Classifications
C; C10; C10G; C10G29/00; C10G29/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
THE METHOD OF REDUCING THE METALS CONTENT OF REDUCED CRUDES WHICH COMPRISE MILDLY COKING AN INTIMATE MIXTURE OF THE REDUCED CRUDE AND BETWEEN ABOUT 0.01 TO 5 PERCENT BY VOLUME BASED ON REDUCED CRUDE OF A SALICOORTHO ESTER, SAID MILD COKING BEING CARRIED OUT UNDER CONDITIONS WHEREIN A PORTION OF THE REDUCED CRUDE IS LIQUID AND WHEREIN THE AMOUNT OF COKE FORMED IS NOT MORE THAN THE RAMSBOTTOM CARBON CONTENT OF THE REDUCED CRUDE CHARGED, THE MILD COKING CONDITIONS COMPRISING A TEMPERATURE BETWEEN ABOUT 750'' AND 900''F. AND A SPACE VELOCITY OF BETWEEN ABOUT 5 TO 500 LIQUID VOLUMES OF CHARGED REDUCED CRUDE PER HOUR PER VOLUME OF COKING ZONE, THE HIGHER SPACE VELOCITIES BEING EMPLOYED WITH THE HIGHER TEMPERATURES.
Claim 2
Independent Claim
120 words
THE METHOD OF REDUCING THE METALS CONTENT OF REDUCED CRUDES WHICH COMPRISE MILDLY COKING AN INTIMATE MIXTURE OF THE REDUCED CRUDE AND BETWEEN ABOUT 0.01 TO 5 PERCENT BY VOLUME BASED ON REDUCED CRUDE OF A SALICOORTHO ESTER, SAID MILD COKING BEING CARRIED OUT UNDER CONDITIONS WHEREIN A PORTION OF THE REDUCED CRUDE IS LIQUID AND WHEREIN THE AMOUNT OF COKE FORMED IS NOT MORE THAN THE RAMSBOTTOM CARBON CONTENT OF THE REDUCED CRUDE CHARGED, THE MILD COKING CONDITIONS COMPRISING A TEMPERATURE BETWEEN ABOUT 750'' AND 900''F. AND A SPACE VELOCITY OF BETWEEN ABOUT 5 TO 500 LIQUID VOLUMES OF CHARGED REDUCED CRUDE PER HOUR PER VOLUME OF COKING ZONE, THE HIGHER SPACE VELOCITIES BEING EMPLOYED WITH THE HIGHER TEMPERATURES.
References Cited (Backward Citations)
US2317803A
Cited
US2388055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |